ACM: Asbestos-containing material, any material with >1% asbestos;TSI: Thermal system insulation, ACM applied to pipes, fittings, boilers, ducts, etc. to prevent heat loss/gain; PACM: Presumed asbestos-containing material,TSI and surfacing material in buildings built ≤1980, treated as ACM until proven otherwise; PLM: Polarized light microscopy, microscopy technique to identify asbestos fibers; TEM: Transmission electron microscopy, high-resolution imaging method Thermal System Insulation (TSI) Understanding Asbestos and Thermal System Insulation What Is Asbestos-Containing Thermal System Insulation (TSI), and Where Is It Commonly Found in Buildings? UNDERSTANDING ASBESTOS AND THERMAL SYSTEM INSULATION How Can You Identify Asbestos-Containing Pipe Insulation in Commercial, Industrial, and Residential Buildings? Thermal system insulation is particularly important because many historical insulation products contain asbestos and some can release microscopic fibers when damaged or disturbed. Pipe insulation may deteriorate over time because of moisture, vibration, mechanical damage, maintenance activities, and aging. Fibers may become airborne when workers cut, drill, scrape, remove, or improperly repair asbestos-containing insulation. This creates potential exposure concerns for maintenance personnel, plumbers, HVAC technicians, construction workers, building occupants, and contractors. The risk depends on the material's asbestos content, condition, accessibility, and the activities being performed around it. Proper inspection, material identification, maintenance planning, and professional asbestos management help prevent unnecessary exposure. What Is the Difference Between Thermal System Insulation (TSI), Surfacing Materials, and Other Asbestos-Containing Building Materials? Several types of asbestos were used historically in insulation and other industrial products. The three commonly discussed commercial asbestos types are chrysotile, amosite, and crocidolite. Chrysotile is commonly called white asbestos . Amosite is commonly called brown asbestos. Crocidolite is commonly called blue asbestos . Chrysotile was widely used in numerous building and mechanical insulation products. Amosite and other amphibole asbestos types were also used in certain historical insulation applications. Crocidolite Is widely used in industrial applications due to its tensile strength and heat resistance. Typically found in insulation products, fireproof textiles, cement blends, spray-on coatings, plastics, pipe insulation, cigarette [Micronite] filters, brake liners, furnace and oven liners, and more. It's use has declined as result of Crocidolite's carcinogenic properties. The specific asbestos type cannot reliably be determined by looking at the material. Laboratory analysis by an appropriately qualified laboratory is necessary to identify asbestos and, when required, characterize the asbestos mineral type. Asbestos Identification, Inspection, and Testing Presumed Asbestos-Containing Material, or PACM, is a regulatory designation used under OSHA's asbestos construction standard. OSHA defines PACM as thermal system insulation and surfacing material found in buildings constructed no later than 1980. This means certain older pipe insulation, boiler insulation, and surfacing materials must be treated as presumed asbestos-containing materials unless the presumption is properly rebutted under applicable OSHA requirements. The designation is particularly important for contractors, employers, building owners, and maintenance personnel planning work that could disturb historical insulation. A building's construction date alone does not prove that every insulation product contains asbestos. However, the PACM designation establishes important workplace obligations. Qualified inspection, appropriate testing, and proper documentation can help determine the material's status . Asbestos Exposure, Safety, and Risk Management Is Asbestos-Containing Thermal System Insulation Dangerous If It Is Intact and Undisturbed? Intact, properly maintained asbestos-containing thermal system insulation generally presents a lower risk of fiber release than insulation that is damaged, deteriorating, or disturbed. Asbestos exposure occurs when microscopic fibers become airborne and are inhaled. However, intact material is not automatically harmless. Its condition, location, accessibility, and likelihood of future disturbance must be considered. If asbestos-containing insulation is in good condition and unlikely to be disturbed, professional management may be preferable to unnecessary removal. Building owners should maintain appropriate records, monitor material condition, and communicate relevant asbestos information to contractors and maintenance personnel. Any planned work that could disturb the insulation should be evaluated before work begins. USENVI expert takeaway: Asbestos management is not simply a decision to remove or leave material. It requires an informed evaluation of condition, exposure potential, and future building activities. Can Asbestos Fibers Become Airborne When Old Pipe Insulation Is Damaged or Disturbed? Yes. Asbestos fibers can become airborne when asbestos-containing pipe insulation is damaged, deteriorates, or is disturbed. Potential fiber-release activities include: Cutting or drilling. Scraping or sanding. Breaking or crushing. Mechanical demolition. Improper insulation removal. Certain maintenance and repair activities. Asbestos fibers are microscopic and cannot be reliably identified by looking at dust or debris. Air monitoring, when appropriate, must be conducted using recognized sampling and analytical procedures by qualified professionals. The presence of visible dust does not establish an asbestos concentration, and the absence of visible dust does not prove that airborne asbestos is absent. USENVI expert takeaway: Suspected asbestos insulation should be evaluated before disturbance, and potential exposure should be addressed through appropriate professional controls and assessment. What Should Contractors, Plumbers, HVAC Technicians, and Maintenance Workers Know Before Working Around Suspect Asbestos TSI? Address pre-work asbestos assessments, building surveys, worker awareness, applicable OSHA requirements, work planning, and the importance of not disturbing suspect insulation before appropriate evaluation. Should Asbestos-Containing Thermal System Insulation Be Removed, Repaired, or Encapsulated? Asbestos-containing thermal system insulation does not always need to be removed. The appropriate management decision depends on the material's condition, accessibility, potential for disturbance, building use, and planned renovation or demolition. When material is intact and properly maintained, continued management may be appropriate. When material is damaged, professional repair, encapsulation, or enclosure may be considered. Removal may be appropriate when asbestos-containing insulation interferes with construction, renovation, equipment replacement, or demolition. Encapsulation involves applying an appropriate material to help seal or bind asbestos fibers. Enclosure involves creating a protective barrier around the asbestos-containing material. Neither option is appropriate for every condition. A qualified asbestos professional should evaluate the material and recommend an appropriate management strategy. Chicago and Illinois Asbestos Regulations and Professional Services What Are the Federal, Illinois, and Chicago Asbestos Regulations Governing Thermal System Insulation? Several federal, state, and local regulations may apply to asbestos-containing thermal system insulation. The primary federal workplace regulations include OSHA's General Industry Asbestos Standard, 29 CFR 1910.1001, and Construction Asbestos Standard, 29 CFR 1926.1101. The U.S. Environmental Protection Agency administers federal asbestos requirements, including the National Emission Standards for Hazardous Air Pollutants, commonly called NESHAP. Illinois EPA administers the delegated asbestos NESHAP program in Illinois. The Illinois Department of Public Health administers state licensing requirements for covered asbestos-related activities in schools and public and commercial buildings. Chicago and other local jurisdictions may impose additional notification, permitting, or fee requirements. These regulations address different aspects of asbestos identification, worker protection, project notification, abatement, and disposal. The specific requirements depend on the building, material classification, quantity, work activity, and project location. Is an Asbestos Ins pection Required Before Renovating or Demolishing an Older Building in Chicago or Illinois? An asbestos inspection is generally an important prerequisite to regulated renovation and demolition work, and specific inspection and notification requirements apply under federal and Illinois regulations. Federal NESHAP requires a thorough inspection of affected facilities before covered demolition or renovation operations. Illinois EPA requires advance notification for applicable regulated asbestos removal projects when the amount exceeds specified thresholds. Illinois identifies notification thresholds of more than 160 square feet, 260 linear feet, or one cubic meter of regulated asbestos-containing material for applicable renovation projects. Notification generally must be submitted at least ten working days before the covered work begins. Demolition requirements must be evaluated separately; the notification obligation is not limited to whether asbestos removal is planned. Illinois Department of Public Health licensing requirements and local Chicago or county requirements may also apply. There are specific exemptions and distinctions based on building type and project circumstances, including certain residential structures. Who Is Qualified to Inspect, Sample, and Remove Asbestos-Containing Thermal System Insulation in Illinois? Different asbestos activities require different professional qualifications. An asbestos inspector identifies suspect materials, performs or oversees appropriate sampling, and documents findings. An asbestos project designer prepares specifications and plans for covered abatement projects. An asbestos supervisor oversees applicable abatement operations. An asbestos worker performs regulated asbestos abatement work. An asbestos contractor is responsible for conducting covered abatement projects and meeting applicable licensing and insurance requirements. An air-sampling professional performs appropriate air monitoring and clearance sampling within the scope of their qualifications. In Illinois, the Illinois Department of Public Health administers licensing requirements for asbestos-related activities in schools and covered public and commercial buildings. Property owners should verify the qualifications, licensing, and credentials of the individuals and companies performing the specific work. How do I know if I have asbestos in my home (in floor tile, ceiling tile, shingles, siding, etc.)? The only way to be sure whether a material contains asbestos is to have it tested by a qualified laboratory. EPA only recommends testing suspect materials if they are damaged (fraying, crumbling) or if you are planning a renovation that would disturb the suspect material. Samples should be taken by a properly trained and accredited asbestos professional (inspector). What are the health risks if I have asbestos in my home, building, apartment, or school? Asbestos that is in good condition and left undisturbed is unlikely to present a health risk. The risks from asbestos occur when it is damaged or disturbed where asbestos fibers become airborne and can be inhaled. Managing asbestos in place and maintaining it in good repair is often the best approach. 3.Where can I find someone to remove the asbestos in my home? You can perform an internet search for “asbestos contractor” and the location of your home. Contact your state to determine what state training and accreditation requirements may exist for both the contractor and their workers. EPA recommends that you use an asbestos contractor that is properly trained to handle asbestos. 4.My attic has vermiculite insulation in it. Am I at risk? Should I take it out? If you have vermiculite insulation in your home, you should assume this material may be contaminated with asbestos and be aware of steps you can take to protect yourself and your family from exposure to asbestos. The EPA recommends that vermiculite insulation be left undisturbed. Airborne asbestos fibers present a health risk through inhalation, so the first step is to not disturb the material, which could release fibers into the air. If you disturb the insulation, you may inhale some asbestos fibers. The degree of health risk depends on how much and how often this occurred. If you choose to remove the vermiculite insulation, this work should be done by a trained and accredited asbestos abatement contractor that is separate and independent from the company that performed the assessment of the vermiculite insulation to avoid any conflict of interest. What are the health risks if I have asbestos in my home, building, apartment, or school? Asbestos that is in good condition and left undisturbed is unlikely to present a health risk. The risks from asbestos occur when it is damaged or disturbed where asbestos fibers become airborne and can be inhaled. Managing asbestos in place and maintaining it in good repair is often the best approach. Where can I find someone to remove the asbestos in my home? You can perform an internet search for “asbestos contractor” and the location of your home. Contact your state to determine what state training and accreditation requirements may exist for both the contractor and their workers. EPA recommends that you use an asbestos contractor that is properly trained to handle asbestos. My attic has vermiculite insulation in it. Am I at risk? Should I take it out? If you have vermiculite insulation in your home, you should assume this material may be contaminated with asbestos and be aware of steps you can take to protect yourself and your family from exposure to asbestos. The EPA recommends that vermiculite insulation be left undisturbed. Airborne asbestos fibers present a health risk through inhalation, so the first step is to not disturb the material, which could release fibers into the air. If you disturb the insulation, you may inhale some asbestos fibers. The degree of health risk depends on how much and how often this occurred. If you choose to remove the vermiculite insulation, this work should be done by a trained and accredited asbestos abatement contractor that is separate and independent from the company that performed the assessment of the vermiculite insulation to avoid any conflict of interest . I am thinking about buying a house but it has vermiculite attic insulation in it. Should I have it removed before or after I buy the house? Removal of the vermiculite insulation may not be necessary if it is confined in a manner where it will be left undisturbed. If you choose to have the vermiculite insulation removed, the EPA recommends that you use a trained and accredited asbestos contractor that is separate and independent from the company that performed the assessment of the vermiculite insulation to avoid any conflict of interest. I use/used vermiculite to enhance my potting soil. Should I be concerned? EPA's investigation (see report) into these products indicates that consumers face only a minimal health risk from using vermiculite products at home or in their gardens. To further reduce the risk associated with the occasional use of vermiculite products during gardening activities, EPA recommends that consumers: • Use vermiculite outdoors or in a well-ventilated area. Avoid creating dust by keeping vermiculite damp during use. Avoid bringing dust into the home on clothing. Although EPA does not endorse the use of any particular product, consumers may choose to use: Premixed potting soils, which ordinarily contain more moisture and less vermiculite than pure vermiculite products and are less likely to generate dust. Soil amendment materials other than vermiculite, such as peat, sawdust, perlite, or bark. How do I get certified as an asbestos professional? To become a properly trained and accredited asbestos professional you will need to seek training from a training provider that offers courses approved by the EPA or a state to conduct asbestos training pursuant to the Asbestos Model Accreditation Plan. Most states also require a license to perform this work. Your training course completion certificate is a general prerequisite to applying for such a license. The training courses vary in length from 2 to 5 days depending upon the type of work you wish to perform. Accredited asbestos training courses are offered in five separate disciplines; Asbestos Abatement Worker, Asbestos Abatement Supervisor, Inspector, Management Planner and Project Designer. Some states may refer to these training disciplines by different, yet similar names. Where can I find someone to test a material to see if it contains asbestos? You can perform an internet search for “asbestos inspection and assessment” and the location of your home. Also, make sure that the inspector is properly trained and accredited by your state. Blog 331-462-2711 Request Quote

Air Asbestos Lead Mold Radon Water "National standards, compliant care, precise results for water, soil, and air—US Environmental." Test-only. No remediation. No conflict of interest. 2027 US Environmental Testing Privacy Policy This Privacy Policy outlines the practices of Northern Illinois Radon LLC regarding the collection, use, maintenance, and disclosure of information obtained from users (each, a "User") of the niradon.com/usenvi.com websites ("Sites"). This policy applies to the Site and all products and services offered by Northern Illinois Radon LLC (dba US Environmental Testing). Personal Identification Information We may collect personal identification information from Users in various ways, including but not limited to, visiting our site, registering, placing orders, subscribing to newsletters, responding to surveys, filling out forms, and engaging in other services we offer. Users can visit our Site anonymously but must voluntarily submit personal information if they wish to engage in specific site functions. Users may refuse to provide personal information, which may limit their ability to participate in certain activities. Non-Personal Identification Information We may gather non-personal identification information about Users whenever they interact with our Site. This information may include the browser name, the type of device, and technical details about Users’ means of connecting to our Site, such as the operating system and Internet service providers used. Cookies Our Site may utilize "cookies" to enhance User experience. Users’ web browsers place cookies on their hard drives for record-keeping and tracking purposes. Users can set their browsers to refuse cookies or to alert them when cookies are sent; however, some parts of the Site may not function correctly if cookies are disabled. How We Use Collected Information Northern Illinois Radon LLC may use Users' personal information for the following purposes: To Improve Customer Service: Information you provide helps us respond more efficiently to customer support needs. To Personalize User Experience: We may aggregate information to understand how users collectively utilize our services and resources. To Improve Our Site: Feedback provided by Users may be used to improve our offerings. To Process Payments: Information provided during order placements will be used solely for transaction purposes and will not be shared with outside parties. To Run Promotions and Surveys: User information may be used to send relevant information to Users. To Send Periodic Emails: We may use the email address provided to send updates, reply to inquiries, and share news on our services. Users can opt-out using the unsubscribe instructions included in our emails. Payment Terms Payments for all services are due at the time of service or upon conclusion of services. If payment is not received within seven days of service, collection efforts will be handed over to the Empire Agency, Empire Credit and Collection, 26 Railroad Avenue #117, Babylon, New York 11702. All collection fees will be the client's responsibility. All data remains the property of Northern Illinois Radon LLC until full payment is received, after which the reports/results will be released to the client. For electronic payments, please use: payments@niradon.com . 1. Returned Check Fees: A fee of $50 will be charged for checks returned by banks due to insufficient funds (NSF) or closed accounts. Failure to pay an invoice will void current and previous radon measurements and results. 2. Calendar Days: Calendar Days are defined as Monday through Friday, including Saturday and Sunday, with holidays included in invoice due dates. 3. Modifications: Amendments may not be performed on active contracts. To amend an active contract, it must be: i) paid in full, ii) concluded with results delivered, or iii) canceled entirely. A new estimate, contract, or proposal will then need to be drafted. 4. Non-Interference: Clients agree to adhere to Northern Illinois Radon LLC's Non-Interference Policy, as the quality of radon measurements is reliant on the measurement environment. For questions or concerns regarding radon measurements, clients can contact Northern Illinois Radon LLC at info@niradon.com or 630-915-9434, at any time during or after the measurement. Violations of closed-building conditions cannot be considered after results are released. 5. Cancellations/Rescheduling: Changes not performed within 24 hours of a scheduled appointment will incur a $100 fee. 6. No-Show Fee: Failure to arrive for a confirmed appointment, including lockout of the building for any reason preventing the radon professional from conducting business, will result in a $100 fee. Data Protection We implement appropriate data collection, storage, and processing practices, along with security measures, to protect against unauthorized access, alteration, disclosure, or destruction of Users' personal information, including usernames, passwords, and transaction data. Sharing Personal Information We do not sell, trade, or rent Users' personal information. Generic aggregated demographic information may be shared with business partners, trusted affiliates, and advertisers. We may use third-party service providers to assist us in operating our business; these entities may have limited access to personal information only as needed and require prior consent from Users. Release of Data / Reporting All sampling data and reports are property of Northern Illinois Radon, until complete payment has been received for services, at which time data and reports will be transferred to paying customer. Correspondence will be between the company and client. The company is not responsible for third-party interpretations or correspondence, including but not limited to communications with associations, contractors, laboratories, lawyers, lenders, realtors, or other parties. Third party consulting is available upon request and with written consent, on an hourly rate basis. Blog Call/Text: 331-462-2711 Quote

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 630-915-9434. US Environmental Testing, Offering Nationwide Asbestos Services: "What is asbestos testing?" "What is lead paint testing?" "What is mold testing?" "What is radon testing?" Asbestos Inspection & Testing Services Nationwide US Environmental Testing provides certified asbestos inspection, sampling, and laboratory testing services for residential, commercial, industrial, and government properties across the United States. What is Asbestos and Why It Matters Asbestos is a regulated hazardous material linked to serious health risks including mesothelioma, lung cancer, and asbestosis. It is commonly found in building materials installed prior to the 1980s . Our Asbestos Services Asbestos Building Inspections Comprehensive inspections performed by EPA and AHERA-certified inspectors. Asbestos Sampling & Laboratory Analysis Bulk sampling with NVLAP-accredited laboratory analysis. Asbestos Surveys Pre-demolition surveys Pre-renovation surveys NESHAP compliance inspections Residential & Commercial Services Homes Schools Hospitals Industrial facilities Government buildings Regulatory Compliance We follow strict compliance with: EPA AHERA regulations NESHAP requirements OSHA exposure standards Where Asbestos is Commonly Found: Popcorn ceilings Floor tiles and mastic Pipe insulation Vermiculite insulation Types of Asbestos Why Choose US Environmental Testing Multi-state licensed inspectors 10+ years experience Rapid turnaround times Certified laboratory partnerships Full regulatory compliance Service Areas We provide nationwide asbestos inspection services with strong coverage in major metropolitan areas. National Service Areas (Service Area Map ) EPA Region 4 Alabama, Mobile (Statewide) Florida, Tallahassee (Statewide) Georgia, Savanah (Statewide) Kentucky, Lexington (Statewide) Mississippi, Jackson (Statewide) North Carolina, Raleigh (Statewide) South Carolina, Columbia (Statewide) EPA Region 5 Illinois, Chicago (Statewide) Indiana, Indianapolis (Statewide) Michigan, Detroit (Statewide) Minnesota, Minneapolis (Statewide) Ohio, Columbus (Statewide) Wisconsin, Madison (Statewide) EPA Region 9 American Samoa, Tafuna (Territory wide) Arizona, Phoenix (Statewide) California, Los Angeles (Statewide) Guam, Dededo Hawaii, Honolulu (Statewide) Nevada, Las Vegas (Statewide) Northern Mariana Islands Saipan Northern Illinois Counties: Services Available within 24-hours of request. DuPage County Cook County Lake County McHernry County Boone County Winnebago County Kane County Kendall County Grundy County Will County Kankakee County All other Illinois Counties by appointment. See other service areas here Schedule Asbestos Testing Today! 📞 331-462-2711 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog 331-462-2711 Request Quote

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 331-462-2711 Air Asbestos Lead Mold Radon Water Most homes in Aurora have never been tested for radon - Schedule your certified inspection today." Radon Is a Serious Risk in Aurora, Illinois Illinois is a high radon zone, and homes in Aurora are at risk, due to soil conditions and construction methods. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. What Is Radon? (Scientific Overview) Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks Sump pits Utility penetrations Crawlspaces and slab joints Once inside, radon accumulates—especially in basements and lower levels. Radon may be detected in elevated levels in up to the third level of a dwelling. Licensed Radon Testing & Mitigation Services in Aurora, IL Trusted Radon Testing in Aurora, Illinois If you're searching for licensed, insured environmental testing in Aurora, Illinois, with experience conducting tests that you need! Look no further: US Environmental Testing is recognized as a leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Choose Us in Aurora, Illinois “We are Illinois’ leading environmental testing authority (2026) operating under EPA, ANSI, HUD, and OSHA-aligned protocols.” Trusted across Illinois. We operate under strict adherence to protocols outlined by the following Federal Agencies: American National Standard Institute (ANSI) HUD Environmental Protocols Illinois Emergency Management Agency, Department of Homeland Security (IEMA) Indoor Environments Association (IEA) National Emission Standards for Hazardous Air Pollutants (NESHAP) OSHA & NIOSH Safety Frameworks United States, Environmental Protection Agency (USEPA) National Institute for Occupational Safety and Health (NIOSH) United States Occupational Safety and Health Administration (OSHA) Our Services in Aurora, Illinois Asbestos Containing Materials (ACM) - Building Inspections Residential Asbestos Containing Materials (ACM) - Building Inspections Real Estate Asbestos Containing Materials (ACM) - Building Inspections Commercial Asbestos Containing Materials (ACM) - Building Inspections Lead-Based-Paint Risk Assessment & Lead-Based-Paint Sampling Residential Fungal Spore 'Mold' Risk Assessments Real Estate Fungal Spore 'Mold' Inspections Commercial Fungal Spore 'Mold' Risk Assessments Commercial Fungal Spore 'Mold' Inspections Residential Radon Testing Real Estate Radon Testing Commercial Radon Testing Industrial Radon Testing Daycare Radon Testing, Residential & Commercial Radon Mitigation System Design Post-Mitigation Radon Testing Serving Aurora, Illinois and Nearby Areas & Regions: Service Areas We proudly serve Aurora, Illinois and surrounding suburbs and EPA Regions What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment. Scientific Precision Advanced monitoring equipment and calibrated data analysis. Multi-Sector Expertise Residential Capital Improvement (CI) Commercial Education Government Healthcare Industrial Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Asbestos asbestos inspection Aurora, IL asbestos survey commercial Aurora, IL asbestos testing near me Aurora, IL Mold mold inspection Aurora, IL black mold testing Aurora, IL basement mold inspection Aurora, IL Lead lead paint testing Aurora, IL lead risk assessment Aurora, IL lead inspection daycare Aurora, IL Schedule Radon Testing in Aurora, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 630-915-9434 Request Quote

Discover licensed asbestos building inspections, lead-based paint and sampling, licensed radon testing & mitigation, and water assessments in Bensenville, IL. Protect your home with expert testing & mitigation services today! Air Asbestos Lead Mold Radon Water Illinois Radon Testing & Mitigation Authority (2026) US Environmental Testing Most homes in Bensenville have never been tested for radon - Schedule your certified inspection today." Radon Is a Serious Risk in Bensenville, Illinois Illinois is a high radon zone, and homes in Bensenville are at risk, due to soil conditions and construction methods. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. What Is Radon? (Scientific Overview) Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks Sump pits Utility penetrations Crawlspaces and slab joints Once inside, radon accumulates—especially in basements and lower levels. Radon may be detected in elevated levels in up to the third level of a dwelling. Licensed Radon Testing & Mitigation in Bensenville, IL Trusted Radon Testing in Bensenville, Illinois If you're searching for licensed, insured environmental testing in Bensenville, Illinois, with experience conducting tests that you need! Look no further: US Environmental Testing is recognized as a leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Choose Us in Bensenville, Illinois “We are Illinois’ leading environmental testing authority (2026) operating under EPA, ANSI, HUD, and OSHA-aligned protocols.” Trusted across Illinois. We operate under strict adherence to protocols outlined by the following Federal Agencies: American National Standard Institute (ANSI) HUD Environmental Protocols Illinois Emergency Management Agency, Department of Homeland Security (IEMA) Indoor Environments Association (IEA) National Emission Standards for Hazardous Air Pollutants (NESHAP) OSHA & NIOSH Safety Frameworks United States, Environmental Protection Agency (USEPA) National Institute for Occupational Safety and Health (NIOSH) United States Occupational Safety and Health Administration (OSHA) Our Services in Bensenville, Illinois Asbestos Containing Materials (ACM) - Building Inspections Residential Asbestos Containing Materials (ACM) - Building Inspections Real Estate Asbestos Containing Materials (ACM) - Building Inspections Commercial Asbestos Containing Materials (ACM) - Building Inspections Lead-Based-Paint Risk Assessment & Lead-Based-Paint Sampling Residential Fungal Spore 'Mold' Risk Assessments Real Estate Fungal Spore 'Mold' Inspections Commercial Fungal Spore 'Mold' Risk Assessments Commercial Fungal Spore 'Mold' Inspections Residential Radon Testing Real Estate Radon Testing Commercial Radon Testing Industrial Radon Testing Daycare Radon Testing, Residential & Commercial Radon Mitigation System Design Post-Mitigation Radon Testing Serving Bensenville, Illinois and Nearby Areas & Regions: Service Areas We proudly serve Bensenville, Illinois and surrounding suburbs and EPA Regions What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment. Scientific Precision Advanced monitoring equipment and calibrated data analysis. Multi-Sector Expertise Residential Capital Improvement (CI) Commercial Education Government Healthcare Industrial Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Asbestos Asbestos inspection Bensenville, IL Asbestos survey commercial Bensenville, IL Asbestos testing near me Bensenville, IL Mold Mold inspection Bensenville, IL Black mold testing Bensenville, IL Basement mold inspection Bensenville, IL Lead Lead paint testing Bensenville, IL Lead risk assessment Bensenville, IL Lead inspection daycare Bensenville, IL Schedule Radon Testing in Bensenville, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 724-467-7328 Request Quote

About Us Finding Inspiration in Every Turn This is your About Page. This space is a great opportunity to give a full background on who you are, what you do and what your website has to offer. Double click on the text box to start editing your content and make sure to add all the relevant details you want site visitors to know. Our Story Every website has a story, and your visitors want to hear yours. This space is a great opportunity to give a full background on who you are, what your team does, and what your site has to offer. Double click on the text box to start editing your content and make sure to add all the relevant details you want site visitors to know. If you’re a business, talk about how you started and share your professional journey. Explain your core values, your commitment to customers, and how you stand out from the crowd. Add a photo, gallery, or video for even more engagement. Meet The Team Don Francis Founder & CEO Ashley Jones Tech Lead Tess Brown Office Manager Lisa Rose Product Manager Kevin Nye HR Lead Alex Young Customer Support Lead Our Clients

Licensed professional radon detection in Chicago and the surrounding 100 miles. Residential and Commercial Radon Testing. Call 331-462-2711 What is Radon? Radon is a colorless, odorless, carcinogenic [soil] gas that enters buildings through small cracks and openings in the foundation. The only way to identify the levels inside the building is to test for the radon. We are licensed to provide all types of radon detection testing, including: DCFS testing Follow-up radon testing Real estate transaction testing The US Environmental Testing LLC radon professionals service commercial buildings, day care centers, multi-famliy dwellings, and residential homes. If levels are found to exceed the EPA Action level of 4.0 picocuries per liter [air] (pCi/L), we will make recommendations in finding appropriate remediation solutions. What is radon? How does it enter a building? Radon is a natural [soil] gas, which is: colorless, odorless, and carcinogenic. Radon enters buildings openings through small cracks and openings in the in the foundation. The only way to identify the levels inside the building is to test for the radon. from below and it raises from the earth. When this gas is inhaled, the decaying radon gas separates into radioactive radon decay products (RDPs). These RDPs, contain alpha- and beta- radiation and damage the lining of the lungs over time. Long-term exposure to radon may lead to lung cancer. The United States Department of Environmental Protection Agency (EPA) have identified the lung cancer mortality rate from radon exposure to be approximately 21,000. We are licensed to provide radon testing for all types of buildings, including: DCFS testing for private and commercial day care centers Follow-up radon testing HUD Real estate transaction testing Compliance radon testing University and Education testing Multi-Family Are you in need of a radon measurement? US Environmental Testing sp ecialize in professional radon measurement, which includes single family homes, duplex and condominiums. If you are in search of a mitigation company, we team up with reputable radon mitigation firms to get the job done. Are you a buyer, involved in a real estate transaction? Seeking a pre-closing radon measurement? Northern Illinois Radon is the solution for you. Has it been two years (or longer) since you have tested your home? Contact Northern Illinois Radon to learn about the importance of testing your home and how to protect your family from the health risks of radon. Take advantage of the many services Northern Illinois Radon offers and breathe confidently knowing that the air in your home has been tested, and does not have harmful levels of radon in the air! Services we offer include: Diagnostic Follow-up New construction and remodeling Pre- and post-mitigation measurements Short and long-term measurements Need DCFS-compliant radon testing? US Environmental provides certified radon detection for Illinois daycares, schools, and homes with fast results and official reports for DCFS Licensing Agents. Test Every 3 years How to prepare for a closed building radon measurement: To follow are the steps to follow, before and during a radon measurement by US Environmental Testing to properly prepare a building for a closed-building radon measurement. Following these guidelines are important to assure measurement accuracy. Should there be any questions or concerns please contact US Environmental Testing for answers and solutions. 1. Keep exterior doors and windows for 12 hours prior to the start of this test, the continual use of exterior doors for normal entry and exit is allowed and expected. Keep all windows, doors and other openings to the outside closed during the testing period. 2. Set the thermostat to 72 Degrees Fahrenheit (plus or minus 5 degrees Fahrenheit) and set to "Auto". Do not change the testing environment in any way, including but not limited to, opening windows, leaving doors open, changing thermostat or fan settings or cause outside air to be introduced into the home. 3. Operation of mechanical systems that draw air out of building may adversely affect the test results. Any test device(s) placed should not be disturbed and the location should not be changed. Report to US Environmental Testing any circumstances or events that may cause the conditions outlined above to be violated in any way or manner, and any circumstance that may have an influence of the testing conditions or results. If any of these guidelines are not followed and the test results appear to be incorrect, a re-test may be required. 4. When the radon monitors are placed and test is started, tamper evident seals will be installed on all windows. These should not be removed until the measurement is concluded. 5. Forty-eight (48) hours after the start of the radon measurement, the measurement will conclude and you will have (verbal) results at time of monitor retrieval. A formal report will be prepared within 24 hours and delivered electronically (email, fax) and by mail (upon request). HOW TO PREPARE FOR A RADONTEST National Service Areas (Service Area Map ) EPA Region 4 Alabama, Mobile (Statewide) Florida, Tallahassee (Statewide) Georgia, Savanah (Statewide) Kentucky, Lexington (Statewide) Mississippi, Jackson (Statewide) North Carolina, Raleigh (Statewide) South Carolina, Columbia (Statewide) EPA Region 5 Illinois, Chicago (Statewide) Indiana, Indianapolis (Statewide) Michigan, Detroit (Statewide) Minnesota, Minneapolis (Statewide) Ohio, Columbus (Statewide) Wisconsin, Madison (Statewide) EPA Region 9 American Samoa, Tafuna (Territory wide) Arizona, Phoenix (Statewide) California, Los Angeles (Statewide) Guam, Dededo Hawaii, Honolulu (Statewide) Nevada, Las Vegas (Statewide) Northern Mariana Islands Saipan Northern Illinois Counties: Services Available within 24-hours of request. DuPage County Cook County Lake County McHernry County Boone County Winnebago County Kane County Kendall County Grundy County Will County Kankakee County All other Illinois Counties by appointment. See other service areas here Blog 331-462-2711 Request Quote

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 630-915-9434. Air Asbestos Lead Mold Radon Water Illinois Radon Testing & Mitigation Authority (2026) US Environmental Testing Radon Is a Serious Risk in Villa Park, Illinois Illinois is a high radon zone, and homes in Villa Park are at risk, due to soil conditions and construction methods. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. What Is Radon? (Scientific Overview) Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks Sump pits Utility penetrations Crawlspaces and slab joints Once inside, radon accumulates—especially in basements and lower levels. Radon may be detected in elevated levels in up to the third level of a dwelling. Licensed Radon Testing & Mitigation in Villa Park, IL Trusted Radon Testing in Villa Park, Illinois If you're searching for licensed, insured environmental testing in Villa Park, Illinois, with experience conducting tests that you need! Look no further: US Environmental Testing is recognized as a leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Choose Us in Villa Park, Illinois “We are Illinois’ leading environmental testing authority (2026) operating under EPA, ANSI, HUD, and OSHA-aligned protocols.” Trusted across Illinois. We operate under strict adherence to protocols outlined by the following Federal Agencies: American National Standard Institute (ANSI) HUD Environmental Protocols Illinois Emergency Management Agency, Department of Homeland Security (IEMA) Indoor Environments Association (IEA) National Emission Standards for Hazardous Air Pollutants (NESHAP) OSHA & NIOSH Safety Frameworks United States, Environmental Protection Agency (USEPA) National Institute for Occupational Safety and Health (NIOSH) United States Occupational Safety and Health Administration (OSHA) Our Services in Villa Park, Illinois Asbestos Containing Materials (ACM) - Building Inspections Residential Asbestos Containing Materials (ACM) - Building Inspections Real Estate Asbestos Containing Materials (ACM) - Building Inspections Commercial Asbestos Containing Materials (ACM) - Building Inspections Lead-Based-Paint Risk Assessment & Lead-Based-Paint Sampling Residential Fungal Spore 'Mold' Risk Assessments Real Estate Fungal Spore 'Mold' Inspections Commercial Fungal Spore 'Mold' Risk Assessments Commercial Fungal Spore 'Mold' Inspections Residential Radon Testing Real Estate Radon Testing Commercial Radon Testing Industrial Radon Testing Daycare Radon Testing, Residential & Commercial Radon Mitigation System Design Post-Mitigation Radon Testing Serving Villa Park, Illinois and Nearby Areas & Regions: Service Areas We proudly serve Villa Park, Illinois and surrounding suburbs and EPA Regions Most homes in Villa Park have never been tested for radon - Schedule your certified inspection today." What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment. Scientific Precision Advanced monitoring equipment and calibrated data analysis. Multi-Sector Expertise Residential Capital Improvement (CI) Commercial Education Government Healthcare Industrial Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Asbestos Asbestos inspection Villa Park, IL Asbestos survey commercial Villa Park, IL Asbestos testing near me Villa Park, IL Mold Mold inspection Villa Park, IL Black mold testing Villa Park, IL Basement mold inspection Villa Park, IL Lead Lead paint testing Villa Park, IL Lead risk assessment Villa Park, IL Lead inspection daycare Villa Park, IL Schedule Radon Testing in Villa Park, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 630-915-9434 Request Quote

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 630-915-9434. Air Asbestos Lead Mold Radon Water Illinois Radon Testing & Mitigation Authority (2026) US Environmental Testing Most homes in Des Plaines have never been tested for radon - Schedule your certified inspection today." Radon Is a Serious Risk in Des Plaines, Illinois Illinois is a high radon zone, and homes in Des Plaines are at risk, due to soil conditions and construction methods. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. What Is Radon? (Scientific Overview) Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks Sump pits Utility penetrations Crawlspaces and slab joints Once inside, radon accumulates—especially in basements and lower levels. Radon may be detected in elevated levels in up to the third level of a dwelling. Licensed Radon Testing & Mitigation in Des Plaines, IL Trusted Radon Testing in Des Plaines, Illinois If you're searching for licensed, insured environmental testing in Des Plaines, Illinois, with experience conducting tests that you need! Look no further: US Environmental Testing is recognized as a leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Choose Us in Des Plaines, Illinois “We are Illinois’ leading environmental testing authority (2026) operating under EPA, ANSI, HUD, and OSHA-aligned protocols.” Trusted across Illinois. We operate under strict adherence to protocols outlined by the following Federal Agencies: American National Standard Institute (ANSI) HUD Environmental Protocols Illinois Emergency Management Agency, Department of Homeland Security (IEMA) Indoor Environments Association (IEA) National Emission Standards for Hazardous Air Pollutants (NESHAP) OSHA & NIOSH Safety Frameworks United States, Environmental Protection Agency (USEPA) National Institute for Occupational Safety and Health (NIOSH) United States Occupational Safety and Health Administration (OSHA) Our Services in Des Plaines, Illinois Asbestos Containing Materials (ACM) - Building Inspections Residential Asbestos Containing Materials (ACM) - Building Inspections Real Estate Asbestos Containing Materials (ACM) - Building Inspections Commercial Asbestos Containing Materials (ACM) - Building Inspections Lead-Based-Paint Risk Assessment & Lead-Based-Paint Sampling Residential Fungal Spore 'Mold' Risk Assessments Real Estate Fungal Spore 'Mold' Inspections Commercial Fungal Spore 'Mold' Risk Assessments Commercial Fungal Spore 'Mold' Inspections Residential Radon Testing Real Estate Radon Testing Commercial Radon Testing Industrial Radon Testing Daycare Radon Testing, Residential & Commercial Radon Mitigation System Design Post-Mitigation Radon Testing Serving Des Plaines, Illinois and Nearby Areas & Regions: Service Areas We proudly serve Des Plaines, Illinois and surrounding suburbs and EPA Regions What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment. Scientific Precision Advanced monitoring equipment and calibrated data analysis. Multi-Sector Expertise Residential Capital Improvement (CI) Commercial Education Government Healthcare Industrial Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Asbestos Asbestos inspection Des Plaines, IL Asbestos survey commercial Des Plaines, IL Asbestos testing near me Des Plaines, IL Mold Mold inspection Des Plaines, IL Black mold testing Des Plaines, IL Basement mold inspection Des Plaines, IL Lead Lead paint testing Des Plaines, IL Lead risk assessment Des Plaines, IL Lead inspection daycare Des Plaines, IL Schedule Radon Testing in Des Plaines, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 630-915-9434 Request Quote

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 331-462-2711 Air Asbestos Lead Mold Radon Water Test-only. No remediation. No conflict of interest. Asbestos Containing Material (ACM) Testing & Inspection Services ASBESTOS SERVICES: ACM Survey AHERA Compliance Testing Asbestos Air Monitoring Asbestos Clearance Testing Commercial Asbestos Risk Assessments Industrial Asbestos Survey Asbestos Bulk Sampling s NESHAP Inspections Asbestos Air monitoring Asbestos Clearance Testing School Asbestos Inspections AHERA Compliance Commercial Building Asbestos Assessment Vermiculite Sampling / Assessement Asbestos Building Inspection Services Many homes and commercial buildings constructed before 1980 contain asbestos-containing materials. Asbestos may be found in insulation, floor tiles, ceiling materials, pipe coverings, roofing products, and other building components. While asbestos-containing materials may not pose a risk when undisturbed, renovation, demolition, or deterioration can release fibers into the air. Professional asbestos building inspections help identify suspect materials and determine whether laboratory analysis is necessary. A thorough asbestos inspection typically includes: Visual assessment of suspect materials Collection of representative samples Accredited laboratory analysis Detailed inspection reports Recommendations for management or abatement Property owners planning renovations should strongly consider asbestos testing before disturbing older building materials. Schedule an Asbestos Building Inspection or Limited Sampling in the Chicago Metropolitan area, or any cities below by email or phone today. Lake Zurich Lemont Lombard Maywood Mt. Prospect Naperville New Lenox Oak Brook Oak Park Rolling Meadows Schaumburg Skokie St. Charles Tinley Park Vernon Hills Villa Park Volo Westchester Western Springs Wheaton Wilmette Addison Aurora Barrington Bartlett Batavia Bellwood Bensenville Brookfield Burr Ridge Carol Stream Chicago Cicero Clarendon Hills Des Plaines Downers Grove Evanston Glen Ellyn Hanover Park Highland Park Hinsdale Itasca FAQ - ACM Questions & Answers: Asbestos Building Inspection & Sampling Asbestos Testing vs Asbestos Inspection Understanding the Difference Before You Renovate, Demolish, or Purchase a Property How much does asbestos testing cost in Chicago? Costs vary based on the number of samples required, property size, and project scope. Most residential testing projects can be completed quickly with laboratory analysis provided afterward. Can I remove asbestos myself? Illinois regulations may restrict asbestos removal activities. Testing should always be completed before disturbing suspect materials. How long does asbestos testing take? Field sampling is often completed within a few hours. Laboratory turnaround depends on the analysis requested. What materials commonly contain asbestos? Pipe insulation, floor tiles, ceiling texture, roofing materials, siding, drywall compounds, and thermal insulation are common asbestos-containing materials. Schedule an Asbestos Inspection Today US Environmental Testing provides responsive asbestos testing services across the Chicago metropolitan area. Contact us to schedule a certified asbestos inspection and laboratory analysis. Asbestos Testing in Chicago, IL Certified Asbestos Testing and Inspection Services Throughout Chicagoland US Environmental Testing provides professional asbestos testing, asbestos inspections, bulk material sampling, and hazardous material assessments for residential, commercial, industrial, and demolition projects throughout Chicago and the surrounding suburbs. If your property was built before 1980, asbestos-containing materials may be present in insulation, floor tiles, ceiling materials, roofing products, pipe coverings, siding, textured coatings, and other building materials. Our certified inspectors collect representative samples and submit them to accredited laboratories for analysis to determine whether asbestos is present and whether corrective action is required. Why Asbestos Testing Is Important Asbestos fibers become hazardous when disturbed and released into the air. Exposure has been linked to serious respiratory illnesses including: Asbestosis Lung cancer Mesothelioma Testing is recommended before: Renovations Remodeling projects Demolition work Property acquisitions Commercial tenant improvements Insurance claims Our Asbestos Testing Services Residential asbestos inspections Commercial asbestos surveys Demolition asbestos inspections Renovation asbestos inspections Vermiculite testing* Floor tile testing Popcorn ceiling testing Pipe insulation testing Roofing material testing Drywall and joint compound testing What Are the 6 Types of Asbestos? Identification, Characteristics, Common Uses & Health Risks Asbestos is a naturally occurring group of silicate minerals that was widely used throughout the construction, manufacturing, automotive, and industrial industries because of its strength, durability, fire resistance, and insulating properties. There are six recognized types of asbestos, classified into two mineral groups: serpentine and amphibole. Each type has distinct mineral characteristics, fiber structures, and historical commercial applications. Although some types were used extensively in building materials, others are more commonly encountered as naturally occurring mineral contaminants or impurities in commercial products. Asbestos remains an important environmental and occupational health concern because microscopic fibers can become airborne when asbestos-containing materials are damaged, disturbed, improperly handled, or deteriorated. Understanding the six types of asbestos can help property owners, contractors, environmental professionals, and building managers recognize potential hazards and make informed decisions about asbestos inspection and laboratory testing . What Are the Two Main Groups of Asbestos? The six recognized asbestos minerals are divided into two mineralogical classifications: 1. Serpentine Group Chrysotile (white asbestos) 2. Amphibole Group Crocidolite (blue asbestos) Amosite (brown asbestos) Tremolite Anthophyllite Actinolite The primary difference between these groups is their mineral structure and fiber morphology. Chrysotile generally has curved, flexible fibers arranged in layered structures. Amphibole asbestos minerals typically have straighter, more rigid, elongated fibers. Both groups contain asbestos fibers capable of causing serious disease when inhaled. 1. Chrysotile – White Asbestos Mineral classification: Serpentine Chrysotile, commonly referred to as white asbestos, is the most widely used asbestos mineral historically. It was incorporated into thousands of commercial and industrial products, particularly construction materials, because of its flexibility, tensile strength, heat resistance, and ability to be combined with other materials. Unlike amphibole asbestos, chrysotile has a layered mineral structure that produces curved or curly fibers. Physical Characteristics Typically white, grayish-white, or greenish-white. Curved, flexible, and often bundled fibers. Layered serpentine mineral structure. Resistant to heat and many chemical processes. Common Historical Applications Roofing shingles and roofing felts. Vinyl floor tiles and flooring adhesives. Cement siding and asbestos-cement products. Ceiling tiles and acoustic materials. Joint compound and textured wall coatings. Pipe and boiler insulation. Gaskets and industrial sealing materials. Automotive brake linings and clutch components. Health Risks Chrysotile is a known human carcinogen. Inhalation of its fibers has been associated with mesothelioma, lung cancer, and asbestosis. Although chrysotile has historically been described as less bio-persistent than amphibole asbestos, it should never be considered safe to inhale. 2. Crocidolite – Blue Asbestos Mineral classification: Amphibole Crocidolite, commonly known as blue asbestos, is an amphibole mineral recognized for its fine, straight, needle-like fibers. It has historically been considered one of the most hazardous forms of asbestos because its fibers are durable and can remain in lung tissue for extended periods. Crocidolite was used in certain industrial and commercial applications, although its use was considerably less widespread than chrysotile. Physical Characteristics Blue to blue-gray appearance in mineral specimens. Straight, fine, elongated fibers. Rigid amphibole crystal structure. High resistance to chemical degradation. Common Historical Applications Certain spray-applied insulation products. Asbestos-cement products and pipes. Thermal insulation. Industrial heat-resistant materials. Historical gas mask filters. Certain historical filtration applications. Health Risks Crocidolite exposure is strongly associated with mesothelioma and lung cancer. Its durable fibers can persist in the respiratory system following inhalation. Because of its potential health consequences, crocidolite-containing materials require careful professional assessment and appropriate handling. 3. Amosite – Brown Asbestos Mineral classification: Amphibole Amosite, commonly referred to as brown asbestos, is an amphibole asbestos mineral that was historically used in construction and industrial applications, particularly where thermal insulation and fire resistance were required. Amosite fibers are generally straight, brittle, and elongated. The mineral was frequently incorporated into insulation boards and other manufactured building materials. Physical Characteristics Typically brown, gray-brown, or gray-green. Straight, brittle fibers. Amphibole mineral structure. High resistance to heat. Common Historical Applications Thermal insulation. Pipe and boiler insulation. Insulating boards. Ceiling tiles. Fireproofing materials. Commercial building insulation. Industrial equipment insulation. Health Risks Amosite is a carcinogenic asbestos mineral associated with mesothelioma, lung cancer, and asbestosis. Materials containing amosite can release respirable fibers when cut, drilled, broken, sanded, or otherwise disturbed. 4. Tremolite Asbestos Mineral classification: Amphibole Tremolite is an amphibole mineral that occurs naturally in metamorphic rocks and certain mineral deposits. When tremolite develops an asbestos-like fibrous structure, it is classified as tremolite asbestos. Unlike chrysotile and amosite, tremolite was not widely used as a primary commercial asbestos product. Its significance is often related to its occurrence as a contaminant in other mineral materials. Physical Characteristics White, gray, green, or translucent mineral specimens. Can occur in fibrous, elongated, or non-fibrous crystalline forms. Amphibole mineral structure. Fibrous varieties may have straight, needle-like characteristics. Where Tremolite May Be Encountered Naturally occurring mineral deposits. Certain contaminated vermiculite materials. Some talc and other mineral products. Certain geological formations. Occasionally as an impurity in commercial materials. Health Risks Fibrous tremolite is hazardous when inhaled and has been associated with mesothelioma, lung cancer, and asbestosis. An important distinction is that not every tremolite mineral specimen is asbestos. Its classification depends on the mineral's fibrous form and characteristics. 5. Anthophyllite Asbestos Mineral classification: Amphibole Anthophyllite is a naturally occurring amphibole mineral that can develop an asbestos-like fibrous structure. It is less commonly encountered than the major commercial asbestos types. Historically, anthophyllite asbestos had limited industrial applications. It is more frequently discussed in connection with naturally occurring mineral deposits and potential contamination of other materials. Physical Characteristics Typically white, gray, brown, or greenish. Fibrous or elongated crystalline structure. Straight, brittle fibers when present in asbestos form. Amphibole mineral composition. Where Anthophyllite May Be Encountered Naturally occurring mineral deposits. Certain historical insulation products. Some contaminated mineral materials. Certain industrial and construction applications. Health Risks Fibrous anthophyllite is a recognized asbestos hazard. Inhalation can contribute to asbestos-related diseases, including lung cancer, mesothelioma, and asbestosis. As with tremolite, the presence of the mineral anthophyllite does not automatically mean the material contains asbestos. Its physical form and mineralogical characteristics must be evaluated. 6. Actinolite Asbestos Mineral classification: Amphibole Actinolite is an amphibole mineral that occurs naturally in several geological environments. When it develops an asbestos-like fibrous structure, it is classified as actinolite asbestos. Actinolite was not commonly manufactured or marketed as a primary commercial asbestos product. However, fibrous actinolite can occur as a contaminant in certain mineral materials and naturally occurring deposits. Physical Characteristics Typically green, gray-green, or dark green. Can occur as elongated or fibrous crystals. Straight, needle-like fibers in fibrous forms. Amphibole mineral structure. Where Actinolite May Be Encountered Naturally occurring mineral deposits. Certain contaminated mineral products. Some insulation and construction materials. Geological formations containing amphibole minerals. Health Risks Fibrous actinolite is hazardous when inhaled and is associated with asbestos-related diseases, including lung cancer, mesothelioma, and asbestosis. Laboratory identification is necessary to distinguish fibrous actinolite from other amphibole minerals and non-asbestiform mineral varieties. Comparison of the Six Types of Asbestos Asbestos TypeMineral GroupCommon NameFiber Characteristics ChrysotileSerpentineWhiteCurved, flexible CrocidoliteAmphiboleBlueStraight, fine AmositeAmphiboleBrownStraight, brittle TremoliteAmphiboleNo common color designationFibrous or elongated AnthophylliteAmphiboleNo common color designationFibrous or elongated ActinoliteAmphiboleNo common color designationFibrous or elongated Note: Color is not a reliable method of identifying asbestos. Actual identification requires appropriate mineralogical examination. What Health Problems Can Asbestos Exposure Cause? Asbestos exposure is associated with several serious respiratory diseases and cancers. Health effects may not become apparent until many years or decades after exposure. The primary asbestos-related diseases include: Mesothelioma Mesothelioma is an aggressive cancer that develops in the mesothelial lining surrounding certain internal organs, most commonly the lungs (pleura). Asbestos exposure is the principal established cause of malignant mesothelioma. Asbestos-Related Lung Cancer Inhaled asbestos fibers can contribute to the development of lung cancer. Smoking combined with asbestos exposure significantly increases lung cancer risk. Asbestosis Asbestosis is a chronic lung disease caused by inhalation of asbestos fibers. The resulting inflammation and scarring of lung tissue can lead to shortness of breath, reduced lung function, and progressive respiratory impairment. Pleural Diseases Asbestos exposure can cause changes to the pleura, the membrane surrounding the lungs. These conditions may include pleural plaques, pleural thickening, and pleural effusions. The likelihood of developing asbestos-related disease depends on several factors, including the amount of exposure, duration, frequency, fiber characteristics, and individual circumstances. All six recognized asbestos types are considered carcinogenic to humans. Where Is Asbestos Commonly Found in Buildings? Asbestos was incorporated into many construction materials because of its durability, insulating properties, and resistance to heat and fire. Older residential, commercial, industrial, and institutional buildings may contain asbestos-containing materials. Common locations include: Roofing and Exterior Materials Roofing shingles. Roofing felts. Cement siding. Exterior wall panels. Certain roofing adhesives. Interior Building Materials Vinyl floor tiles. Flooring adhesives and mastics. Ceiling tiles. Textured ceiling coatings. Joint compound. Wall plaster. Drywall-related materials. Mechanical and Insulation Systems Pipe insulation. Boiler insulation. HVAC insulation. Duct insulation. Thermal insulation blankets. Gaskets and mechanical seals. Fireproofing and Specialty Materials Spray-applied fireproofing. Insulating boards. Fire-resistant panels. Certain industrial coatings. Asbestos-cement products. The presence of these materials does not automatically mean asbestos is present. Building age, manufacturer, product history, and laboratory findings all help determine whether a material contains asbestos. How Can You Tell If a Material Contains Asbestos? One of the most common misconceptions about asbestos is that it can be identified by its appearance. In reality, asbestos fibers are microscopic and cannot reliably be identified by looking at a building material. Two materials may have identical appearances but completely different compositions. Likewise, materials that appear damaged, discolored, or deteriorated are not necessarily asbestos-containing materials. The only reliable way to establish whether a suspect material contains asbestos is through appropriate sampling and laboratory analysis. Property owners and contractors should avoid disturbing suspected materials until an appropriate assessment has been completed. How Is Asbestos Testing Performed? Professional asbestos testing typically involves an assessment of suspect building materials, appropriate sample collection, and laboratory analysis. The process generally includes the following: 1. Building and Material Assessment An asbestos professional evaluates the building, its age, construction materials, and areas where asbestos-containing products may have been installed. 2. Suspect Material Identification Materials are identified for potential sampling based on their appearance, location, composition, and historical use. 3. Sample Collection Samples are collected using appropriate procedures designed to minimize the release of airborne fibers. Sampling should be performed by qualified professionals in accordance with applicable regulations and project requirements. 4. Laboratory Analysis Samples are submitted to a qualified laboratory for analysis. Common analytical methods include: Polarized Light Microscopy (PLM): A commonly used method for identifying and estimating asbestos content in bulk building material samples. Transmission Electron Microscopy (TEM): A higher-resolution analytical technique that may be appropriate when additional fiber identification or sensitivity is required. The appropriate analytical method depends on the material, project requirements, and applicable regulations. Not every sample requires both methods. 5. Laboratory Results and Reporting Laboratory findings document whether asbestos was identified, the reported type when determined, and the estimated concentration when applicable. Results should be interpreted in the context of the building assessment, material condition, and intended renovation or demolition activities. How many types of asbestos are there? There are six recognized types of asbestos: chrysotile, crocidolite, amosite, tremolite, anthophyllite, and actinolite. They are divided into two groups: serpentine and amphibole . What is the most common type of asbestos? Chrysotile, also known as white asbestos, was historically the most widely used commercial asbestos mineral. It was incorporated into numerous roofing, flooring, insulation, cement, and construction products. Which type of asbestos is considered the most dangerous? Crocidolite is generally considered one of the most hazardous asbestos types because of its fine, durable fibers and strong association with mesothelioma. However, all six types are carcinogenic and should be treated as potential health hazards. Is chrysotile asbestos less dangerous than amphibole asbestos? Chrysotile and amphibole asbestos differ in fiber structure and biological persistence. Amphibole fibers generally remain in lung tissue longer, and exposure may carry a higher mesothelioma risk. However, chrysotile is also a known human carcinogen and is not safe to inhale. Can asbestos be identified by color? No. The terms white, blue, and brown asbestos are historical mineral descriptions, not reliable field identification methods. Asbestos fibers may be microscopic, and building materials frequently contain mixtures of different substances. Can asbestos be found in newer buildings? Yes. Although many asbestos uses have been restricted or banned in the United States, certain legacy products remain in buildings, and some asbestos-containing products have continued to be imported or used in specific applications. Building age alone cannot establish whether asbestos is present. Does asbestos have an odor? No. Asbestos fibers are odorless and cannot be detected by smell. Is asbestos dangerous if the material is not disturbed? Asbestos-containing materials in good condition that remain intact and undisturbed generally present a lower immediate risk of fiber release. However, damaged, deteriorating, or disturbed materials can release fibers into the air. Should I test for asbestos before remodeling my home or commercial property? If suspect materials may be affected by renovation, repair, or demolition, an asbestos assessment should be completed before work begins. Applicable federal, state, and local requirements may also require inspection or testing. Can I collect an asbestos sample myself? Sampling can release asbestos fibers if performed improperly. It is generally best to have suspect materials assessed and sampled by a qualified asbestos professional. Some jurisdictions require specific licensing or certification for asbestos inspection and sampling. When Should You Contact an Asbestos Testing Professional? An asbestos assessment may be appropriate when: Purchasing an older residential or commercial property. Planning a renovation or remodeling project. Preparing a building for demolition. Replacing flooring, roofing, or insulation. Repairing damaged pipe or boiler insulation. Managing commercial or industrial properties. Investigating suspected asbestos-containing materials. Responding to contractor or employee concerns about potential exposure. Early identification can help property owners and project managers make informed decisions, reduce the potential for unnecessary exposure, and plan renovation or demolition activities appropriately. Asbestos in Popcorn Ceilings: Identification, Testing, and Risk Popcorn ceilings installed before 1980 frequently contain asbestos fibers and should be tested before disturbance. How to Identify Asbestos Popcorn Ceilings Visual inspection alone is NOT sufficient. Laboratory testing is required. Testing Process 1.Sample collection by certified inspector 2.Chain-of-custody documentation 3.Laboratory analysis (PLM) Health Risks Disturbing asbestos releases airborne fibers that can be inhaled and cause long-term disease. When You Need Testing •Before renovation •Before demolition •Real estate transactions •Damage or deterioration Professional Testing vs DIY Asbestos Testing DIY kits are unreliable and often rejected in real estate and regulatory environments. Professional Asbestos Testing and Environmental Assessment Identifying asbestos is not simply a matter of determining whether a material looks old or resembles a known asbestos-containing product. Proper assessment requires an understanding of building materials, mineral identification, sampling practices, laboratory methods, and applicable environmental regulations. US Environmental Testing LLC (USENVI) provides environmental testing and assessment services to residential, commercial, industrial, and institutional clients. Whether you are a homeowner, general contractor, property manager, real estate professional, or building owner, understanding potential asbestos hazards is an important part of protecting building occupants and planning responsible property improvements. If you suspect asbestos in your property, avoid disturbing the material and arrange for an appropriate professional assessment. US Environmental Testing (USENVI) Website: https://www.usenvi.com Phone: 331-462-2711 Email: info@usenvi.com Environmental Testing | Professional Assessment | Informed Decisions References and Additional Technical Information The following government and public health resources provide additional information about asbestos mineral classifications, health effects, occupational exposure, and asbestos identification: Agency for Toxic Substances and Disease Registry (ATSDR) – Asbestos and Your Health National Cancer Institute (NCI) – Asbestos Exposure and Cancer Risk U.S. Environmental Protection Agency (EPA) – Risk Evaluation for Asbestos Occupational Safety and Health Administration (OSHA) – Asbestos Safety and Health Information National Institute for Occupational Safety and Health (NIOSH) – Asbestos Information This educational information is not a substitute for an asbestos inspection, laboratory analysis, medical evaluation, or professional exposure assessment. Regulatory requirements vary by project type and jurisdiction. Blog Ph: 331-462-2711 Request Quote

Know What's in Your Home with vermiculite testing. Know What's in Your Home—schedule an inspection with US Environmental today. Call 331-462-2711 to schedule. Vermiculite Insulation 1. What is vermiculite insulation, and why is it a concern in older homes? Vermiculite is a naturally occurring mineral that expands when heated, creating lightweight, pebble-like insulation. It was commonly used in residential attics and wall cavities because of its insulating and fire-resistant properties. The primary concern is that much of the vermiculite insulation installed in American homes came from a mine near Libby, Montana, where the vermiculite ore was naturally contaminated with asbestos. This material was frequently sold under the brand name Zonolite. When disturbed, contaminated insulation can release microscopic asbestos fibers into the air. These fibers can be inhaled and may cause serious diseases, including mesothelioma, lung cancer, and asbestosis. If your home contains vermiculite insulation, it should be treated as potentially asbestos-contaminated. Professional evaluation is particularly important before renovation, demolition, or other work that could disturb the material. US EPA+2 2. How can I tell if my attic contains vermiculite insulation? Vermiculite insulation is generally easy to recognize by its appearance, although visual identification cannot determine whether asbestos is present. Common characteristics include: Small, pebble-like or accordion-shaped particles. Gray, silver-gold, tan, or light brown coloring. Lightweight, granular material that resembles small stones. Loose-fill insulation poured or blown between attic floor joists. Material that may be several inches deep. Some older homes contain vermiculite beneath newer fiberglass or cellulose insulation, making it less obvious during a routine home inspection. Important: Never handle, scoop, vacuum, or disturb suspected vermiculite to identify it. A qualified environmental professional can evaluate the material and document its presence and condition. US EPA+1 3. Does all vermiculite insulation contain asbestos? No. Vermiculite itself is not asbestos. However, certain vermiculite deposits contained naturally occurring asbestos minerals. The most significant historical concern involves vermiculite mined near Libby, Montana, which supplied a substantial portion of the vermiculite used in the United States for decades. The contaminated material was distributed nationally and commonly marketed as Zonolite. Because the original source of insulation in many homes cannot be established, the U.S. Environmental Protection Agency (EPA) recommends assuming that vermiculite insulation may contain asbestos. This distinction is important for homeowners and real estate professionals: you cannot determine whether vermiculite is asbestos-free simply by looking at it. US EPA+1 4. Why is asbestos testing important when buying or selling a home with vermiculite insulation? Vermiculite insulation can become an important environmental consideration during a residential real estate transaction. Buyers want to understand potential environmental concerns before purchasing a property. Sellers want to avoid unexpected questions, renovation complications, or disputes after closing. Real estate agents need reliable information to help clients make informed decisions. A professional asbestos assessment can help: Identify and document suspected vermiculite insulation. Evaluate other potentially asbestos-containing building materials. Determine whether additional sampling or laboratory analysis is appropriate. Identify materials that could be affected by planned renovations. Provide environmental documentation for property records. Help buyers and sellers understand potential next steps. One important distinction: the EPA recommends treating vermiculite insulation as asbestos-contaminated rather than relying on a negative routine sample to establish that it is safe. Standard testing methods may not reliably rule out asbestos contamination in vermiculite. Before purchasing, selling, or renovating a property with suspected vermiculite, obtain guidance from a qualified asbestos professional. US EPA+2 5. Is vermiculite insulation dangerous if it is left undisturbed? Not necessarily. The potential health risk from asbestos depends heavily on whether fibers become airborne and are inhaled. Vermiculite insulation that remains contained and undisturbed generally presents a lower potential for exposure than insulation that is handled, removed, damaged, or disturbed during construction. However, problems can arise when: Contractors install recessed lighting or electrical wiring. HVAC technicians access attic equipment. Roofing contractors enter attic spaces. Homeowners install additional insulation. Remodeling projects disturb ceilings or wall cavities. Insulation is moved, swept, vacuumed, or removed improperly. The EPA recommends leaving vermiculite insulation undisturbed, limiting attic access, and preventing contractors from disturbing the material. The absence of visible dust does not establish that asbestos fibers are absent. US EPA+2 6. Can vermiculite insulation contaminate the rest of my home? Yes, potentially. If asbestos-contaminated vermiculite is disturbed, microscopic fibers may become airborne and migrate into other areas of a home. Potential pathways include: Attic access openings and pull-down stairs. Ceiling penetrations and recessed lighting. Electrical and plumbing openings. HVAC equipment and ductwork. Wall cavities and unfinished construction areas. Clothing, footwear, and equipment used by contractors. This is particularly important when insulation has been disturbed during previous remodeling, electrical work, or roof repairs. If you suspect that vermiculite has been disturbed, avoid further cleanup or handling. An environmental professional can evaluate the situation and determine whether additional assessment or appropriate air monitoring is warranted. US EPA+1 7. Should I have vermiculite insulation removed before renovating my home? You should have the material professionally evaluated before beginning renovations that could disturb it. Removing vermiculite is not automatically necessary. In some homes, leaving the insulation undisturbed and properly contained may be the more appropriate option. However, renovations involving attic access, ceiling removal, electrical upgrades, HVAC installations, roofing work, or wall modifications may create opportunities for asbestos fiber release. If removal is necessary, the EPA recommends using a properly trained and accredited asbestos abatement contractor. The assessment professional and removal contractor should be independent of one another to avoid conflicts of interest. Do not attempt to remove vermiculite insulation yourself. Improper handling can spread contamination and increase the potential for exposure. US EPA+1 8. Can a regular home inspection detect asbestos in vermiculite insulation? A standard residential home inspection is not the same as an asbestos inspection. Home inspectors may recognize the appearance of vermiculite and identify it as a potential environmental concern. However, identifying insulation visually does not establish whether asbestos is present. Asbestos identification and assessment require appropriate training, evaluation procedures, and, when applicable, laboratory analysis. There is also an important limitation with vermiculite: routine bulk sampling and standard polarized light microscopy (PLM) analysis may not reliably rule out asbestos contamination. For this reason, the EPA recommends treating vermiculite insulation as potentially asbestos-contaminated, even when a test result reports less than 1% asbestos. If vermiculite is discovered during a home inspection, consult an asbestos professional rather than relying solely on the general home inspection report. US EPA+1 9. Does vermiculite insulation affect my home's value or ability to sell? Vermiculite insulation does not automatically make a home unsafe, unsellable, or unsuitable for occupancy. However, its presence can become an important consideration during a real estate transaction. Potential buyer concerns include: Future asbestos abatement expenses. Restrictions or precautions associated with attic access. Additional costs associated with remodeling. Insulation replacement and energy-efficiency improvements. Environmental disclosures and buyer due diligence. Questions from lenders, insurers, or property managers. Having the material professionally evaluated and properly documented can help buyers and sellers understand the situation before closing. In some circumstances, leaving undisturbed vermiculite in place may be appropriate. Removal should be based on the property's circumstances and applicable requirements, not simply on the presence of the insulation. Environmental documentation can help reduce uncertainty, support informed negotiations, and prevent unexpected complications during a real estate transaction. 10. Who should I contact for vermiculite and asbestos testing near me? If you suspect vermiculite insulation in your attic, walls, or other areas of your home, contact US Environmental Testing to schedule an provides environmental inspection, sampling, and assessment services to help homeowners, homebuyers, sellers, real estate professionals, property managers, and contractors identify potential environmental concerns. Our services include: Residential and commercial asbestos inspections. Suspect building material identification. Appropriate asbestos bulk sampling and laboratory coordination. Vermiculite insulation evaluations. Pre-renovation and pre-demolition asbestos assessments. Environmental documentation for real estate transactions. Mold, lead-based paint, and indoor air quality assessments. Whether you are purchasing an older home, preparing a property for sale, or planning a renovation, understanding potential asbestos concerns before work begins is an important step toward protecting occupants and avoiding unnecessary exposure. Contact US Environmental Testing to discuss an asbestos or vermiculite evaluation. US Environmental Testing Know What's in Your Home. Professional environmental testing and assessment for residential and commercial properties. 331-462-2711 www.usenvi.com info@usenvi.com Serving homeowners, real estate professionals, property managers, and commercial clients. Additional Information: EPA – Protect Your Family from Asbestos-Contaminated Vermiculite Insulation EPA – My Attic Has Vermiculite Insulation in It. Am I at Risk? EPA – Buying a House with Vermiculite Insulation CDC/ATSDR – Preventing Asbestos Exposure EPA – Vermiculite Testing and PLM Analysis Blog 331-462-2711 Request Quote

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 331-462-2711. Asbestos Mold Radon Water Lead "Fast. Accurate. Experienced. Knowledgeable." Test-only. No remediation. No conflict of interest. Call Today - Test Tomorrow! Click to Call/Schedule Radon Testing Commercial, DCFS, Multi-Family, Real Estate, Residential. Call/Text 331-462-2711 - Same Week Appoinments Free Estimates - Accepts All Insurance What is Radon Gas? What is Radon Remediation? Radon Basics LEARN MORE Residential Measurements LEARN MORE Day Care Centers & Schools LEARN MORE Common Questions LEARN MORE Preparing for the measurement LEARN MORE Our Service Area Addison Aurora Barrington Bartlett Batavia Bellwood Bensenville Brookfield Burr Ridge Carol Stream Chicago Cicero Clarendon Hills Des Plaines Downers Grove Evanston Glen Ellyn Hanover Park Highland Park Hinsdale Itasca Schaumburg Skokie St. Charles Tinley Park Vernon Hills Villa Park Volo Westchester Western Springs Wheaton Wilmette Lake Zurich Lemont Lombard Maywood Mt. Prospect Naperville New Lenox Oak Brook Oak Park Rolling Meadows Types of Radon Tests Initial Radon Test ANSI/AARS - MAH 2023 Protocol for Conducting Measurements of Radon and Radon Decay Products in Homes Follow-up Radon Test ANSI/AARS - MAH 2023 Protocol for Conducting Measurements of Radon and Radon Decay Products in Homes Post-Mitigation Radon Test ANSI/AARS - MAH 2023 Protocol for Conducting Measurements of Radon and Radon Decay Products in Homes Types of Radon Tests Commercial / Education ANSI/AARS - MFLB 2023 Protocol for Conducting Measurements of Radon and Radon Decay Products in Multifamily, School, Commercial and Mixed-Use Buildings Follow-up Radon Test ANSI/AARS - MFLB 2023 Protocol for Conducting Measurements of Radon and Radon Decay Products in Multifamily, School, Commercial and Mixed-Use Buildings Post-Mitigation Radon Test ANSI/AARS - MAH 2023 Protocol for Conducting Measurements of Radon and Radon Decay Products in Homes Radon Testing 48-hour EPA-compliant testing Radon Detection, Short-term & Long-term Real estate certified reports, DCFS Certification Reporting, Home Owners Association Testing and more! Post-Mitigation Verification Confirm reduction below EPA action levels What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment Multi-Sector Expertise Capital Improvement (CI) Commercial Education Government Healthcare Home Owner's Associations HUD Industrial Institutional Property Management Real Estate Residential Radon Levels Explained US Environmental Testing is recognized as a leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. Contributing Factors: Glacial soil composition Limestone bedrock Seasonal pressure differentials (stack effect) Modern airtight construction practices Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Radon Testing in Illinois Certified Radon Detection Near You Fast, Accurate, Certified Results If you're searching for radon testing near me, radon inspection in Illinois, or EPA-certified radon detection, US Environmental Testing delivers fast, precise, and fully compliant radon testing services for residential, commercial, and government properties across Illinois. We are industry leaders in radon measurement, indoor air quality testing, and environmental compliance, trusted by homeowners, real estate professionals, schools, healthcare facilities, and commercial property managers. Key Facts Found in homes, schools, and commercial buildings Levels vary by structure—not location alone Only way to detect is through professional testing Illinois is a high-risk radon zone (Zone 1) Residential Radon Testing Real estate transactions (48-hour testing) Homeowner safety testing Pre- and post-mitigation verification Commercial & Industrial Testing Office buildings Warehouses Healthcare facilities Multi-family housing Government & Institutional Testing Schools (K–12 compliance) Daycares (DCFS requirements) Municipal and federal buildings Why US Environmental Testing Outranks the Competition Most companies focus only on “getting the job done.” We dominate because we focus on accuracy, compliance, and authority. prepare for your radon test How to prepare for a closed building radon measurement: Preparing for a Closed-Building Radon Measurement Steps to Follow Before and During Testing by US Environmental Testing To ensure accurate radon measurement results, follow the steps below before and during the testing period. If you have any questions or concerns, contact US Environmental Testing for assistance. 1. Maintain Closed-Building Conditions Keep all exterior doors and windows closed for 12 hours prior to the start of the test. You may use exterior doors for normal entry and exit as needed. During the testing period, continue to keep all windows, doors, and other openings to the outside closed. 2. Set and Maintain the Indoor Temperature Set your thermostat to 72°F (±5°F) and switch it to "Auto" mode. Do not alter the testing environment in any way. This includes: Opening windows or doors Changing thermostat or fan settings Operating systems that introduce or remove outside air 3. Avoid Activities That May Affect Test Results Avoid using mechanical systems that draw air out of the building, as they can impact the accuracy of the test. Do not move or tamper with any testing devices once placed. If anything occurs that might violate testing conditions—such as unexpected changes to ventilation, HVAC settings, or open windows—immediately report it to US Environmental Testing. If the test conditions are compromised, we may need to conduct a re-test. 4. Do Not Remove Tamper Evident Seals When we place the radon monitors and start the test, we will install tamper-evident seals on all windows. Do not remove these seals until the test concludes. 5. Receive Your Results The test will conclude 48 hours after the start time. At the time of monitor retrieval, we will provide verbal results. Within 24 hours, you will receive a formal report via email or fax. We can also send a hard copy by mail upon request. Following these guidelines ensures the most accurate radon measurement possible. Let us know if you need clarification or support at any stage of the process. Are you in need of a radon measurement? Need a Radon Measurement? We’ve Got You Covered. US Environmental Testing specializes in professional radon measurements for single-family homes, duplexes, and condominiums. Whether you're a homeowner or involved in a real estate transaction, we deliver accurate, reliable testing to ensure your property is safe. Looking for radon mitigation? We partner with trusted, licensed mitigation companies to ensure effective solutions if elevated levels are found. Buying or Selling a Home? We provide pre-closing radon testing tailored for real estate transactions—fast, compliant, and hassle-free. Has it been over two years since your last test? Contact Northern Illinois Radon, our dedicated radon division, to learn how regular testing protects your home and family from the long-term health risks of radon exposure. Breathe With Confidence. With our certified radon services, you’ll know your air is safe. We offer: Diagnostic Testing Follow-Up Testing New Construction & Remodeling Measurements Pre- and Post-Mitigation Measurements Short-Term & Long-Term Testing Options Protect Your Home from Radon — Fast, Accurate, Certified Testing Radon is the leading cause of lung cancer among non-smokers, and it could be present in your home right now. The Environmental Specialist of US Environmental Testing offer professional radon testing and mitigation planning services across Chicagoland and Illinois, delivering accurate results and fast solutions you can trust. Operating according to EPA, ANSI, HUD, and OSHA-aligned protocols. Serving EPA Regions 4,5, and 9. Your trusted contractor for asbestos building inspection and testing, Lead-based paint risk assessment, inspections and sampling, Mold risk assessments, inspections, and sampling, radon detections, Water Quality Testing and quality assurance reporting Radon Testing in Illinois | Certified Radon Detection Near You | US Environmental Testing Fast, Accurate, Certified Results If you're searching for radon testing near me, radon inspection in Illinois, or EPA-certified radon detection, US Environmental Testing delivers fast, precise, and fully compliant radon testing services for residential, commercial, and government properties across Illinois. We are industry leaders in radon measurement, indoor air quality testing, and environmental compliance, trusted by homeowners, real estate professionals, schools, healthcare facilities, and commercial property managers. Key Facts Found in homes, schools, and commercial buildings Levels vary by structure—not location alone Only way to detect is through professional testing Illinois is a high-risk radon zone (Zone 1) Our Radon Testing Services We provide professional-grade radon detection using continuous radon monitors (CRM) and laboratory-verified methods. Residential Radon Testing Real estate transactions (48-hour testing) Homeowner safety testing Pre- and post-mitigation verification Commercial & Industrial Testing Office buildings Warehouses Healthcare facilities Multi-family housing Government & Institutional Testing Schools (K–12 compliance) Daycares (DCFS requirements) Municipal and federal buildings Questions & Answers: Radon Detection Commercial, DCFS, Multi-Family, Real Estate, Residential. What is Radon? Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks, Sump pits, Utility penetrations, Crawlspaces and slab joints. Once inside, radon accumulates—especially in basements and lower levels. Health Risks: Why is Radon a Serious Threat? Radon is the #1 cause of lung cancer among non-smokers Linked to thousands of U.S. deaths annually Long-term exposure significantly increases risk There are no immediate symptoms, making testing critical What are Radon Action Levels? Radioactivity (and radon gas) results are measured in units of picocuries (pCi) [per liter of air] in the United States versus the International System of Units (SI), the Becquerel (Bq). A picocurie is a unit of radioactivity that is equivalent to one trillionth of a curie. In Perspective, one cure measures the rate of radioactive decay, specifically 3.7 x 10^10 disintegrations per second. What is an Action Level? The EPA recommends fixing homes when radon levels reach 4 pCi/L (150 Bq/m³) or higher. Since no known level of radon exposure is considered safe, the EPA also urges Americans to consider taking action when levels fall between 2 and 4 pCi/L (75–150 Bq/m³). (epa.gov) . Where does Radon come from? Radon is a natural soil gas. It can not be seen, smelled, or tasted; testing is the only reliable way to determine the concentrations of radon gas in any space. The Illinois Department of Emergency Management (IEMA) has established an action level for radon mitigation when levels radon levels exceed 4.0 pCi/L. Licensed professional radon measurements provide accurate results and help homeowners determine whether mitigation is necessary. Testing is particularly important during real estate transactions, basement finishing projects, and routine home safety evaluations. What Is Radon and Why Testing Is Critical Radon is a colorless, odorless radioactive gas that enters buildings through foundation cracks, sump pits, and soil gas pathways. It is the #1 cause of lung cancer among non-smokers, according to the EPA. What Is Considered a Dangerous Radon Level? 0–2.0 pCi/L → Low risk 2.0–3.9 pCi/L → Moderate risk 4.0+ pCi/L → EPA action level (mitigation recommended) When Should You Test for Radon? Buying or selling a home Every 2 years (recommended) After renovations or foundation changes Before finishing a basement If you’ve never tested before Where to get Radon Testing in Private Schools, Public Schools, and Charter Schools: Radon is a naturally-occurring radioactive gas, and exposure to it can cause lung cancer (radon is the second leading cause of lung cancer in the United States). It comes from the natural decay of uranium found in nearly all rock and soils; it typically moves up through the ground to the air above and into an occupancy through cracks and other holes in the foundation. ANSI/AARST MA-MFLB-2023: Protocol For Conducting Measurements Of Radon And Radon Decay Products In Multifamily, School, Commercial And Multi-Use Buildings details protocols when measuring radon concentrations in residential and non-residential occupancies. US ENVIRONMENTAL TESTING has over ten years' experience and hundreds of measurement projects that have included commercial, mixed use, large buildings and campuses, multi-family, and school buildings. If your organization is preparing an air quality study that may include asbestos, lead-based-paint, mold, radon detection, organic compound detection or water system analysis. Contact US Environmental Testing to request a free quote for services. How does radon detection work? Radon testing measures the concentration of radon gas in your home using short-term or long-term detectors that capture the gas or its radioactive decay products. A radon detector is a device that measures the concentration of radon gas in indoor air, typically reporting results in picocuries per liter (pCi/L). Radon is a naturally occurring radioactive gas that seeps into buildings from the ground, and because it’s colorless and odorless, a detector is the only way to know if it’s present. The EPA recommends taking action if your home’s radon level reaches 4 pCi/L or higher. All radon detectors rely on the same basic physics: radon is radioactive, and as it decays, it releases alpha particles. Detectors capture or count these particles to calculate how much radon is in the air. The differences between detector types come down to how they detect those particles and whether they give you a single reading after days or weeks, or continuous updates in real time. Detectors fall into two broad categories: passive and active. Passive detectors have no electronics or power source. They collect a sample over a set period and then get sent to a lab for analysis. Active detectors are electronic monitors that measure radon continuously and display results on a screen or send them to a phone app. Overview of Radon Testing Radon is a radioactive gas that naturally seeps into homes from soil, rock, and water. It is invisible, odorless, and tasteless, making testing the only way to detect its presence and assess potential health risks, such as lung cancer from long-term exposure . US Environmental Testing Services LLC radon detection services in Illinois Initial radon detection Follow-up radon detection Post-mitigation radon detection How does radon enter my home? Radon's primary entry point is through the soil. The amount of radon in the soil depends upon the soil chemistry and varies among houses and may be affected by weather, soil moisture and porosity, home construction, foundation types, and home pressure. Radon levels vary by region but are present in every State. Radon Levels Explained Radioactivity (and radon gas) results are measured in units of picocuries (pCi) [per liter of air] in the United States versus the International System of Units (SI), the Becquerel (Bq). A picocurie is a unit of radioactivity that is equivalent to one trillionth of a curie. In Perspective, one cure measures the rate of radioactive decay, specifically 3.7 x 10^10 disintegrations per second. What is an Action Level? The EPA recommends fixing homes when radon levels reach 4 pCi/L (150 Bq/m³) or higher. Since no known level of radon exposure is considered safe, the EPA also urges Americans to consider taking action when levels fall between 2 and 4 pCi/L (75–150 Bq/m³). (epa.gov) What are some entry points of radon into my home? Cracks in floors or walls of the foundation ● Gaps in suspended floors ● Openings around sump pumps and drains ● Wall cavities ● Construction joints ● Gaps around service pipes or wires ● Crawl spaces ● The water supply (Radon can affect bodies of water, specifically ground water) How to find radon mitigation services in Illinois? Radon mitigation professionals may be found on the Illinois Emergency Management Website. Northern Illinois Radon LLC and US Environmental Testing provides testing services for our clients and recommendations to trusted mitigation contractors. Who can do a basic radon home test in Illinois? Northern Illinois Radon, a division of US Environmental Testing (usenvi.com), provides professional radon home testing across Illinois. We place certified short-term or long-term radon detectors in your home, analyze the results in an accredited lab, and give you a clear report so you know whether your family is safe — or whether you need radon mitigation. Will my neighbor's radon levels impact the results or levels in my home? No. Radon levels vary from house to house. The only way to know if you have a radon problem is to conduct a test. "...Your home can have elevated levels of radon while your neighbor's home does not. Testing is the only way to determine if you have a problem. Radon testing is easy and inexpensive, and it could save your life. Thousands of lung cancer deaths could be avoided each year if homes with elevated radon underwent changes to reduce radon pollution." [3] Are homes built with radon resistant materials radon proof? The only way to identify if a dwelling has radon present is to conduct a short- or long- term radon test. All buildings will have radon present. Even homes with integrated Radon Resistant New Construction (RRNC), such as passive new construction pipes (PNPs). When explained further, Radon Resistant New Construction (RRNC), is simply the installation of the radon system pipes without the fan. Making the home "radon system ready," but certainly not resistant to its entry. *If buying from a builder, inquire about the reimbursement options available on new RRNC homes that require the home have a fan installed on the home's radon system to make it meet standards. Many builders offer free or discounted mitigation fan installation on new RRNC homes (if necessary). What is the EPA's Action Level for Radon and What Does it Mean? Radon in air is ubiquitous (existing or being everywhere at the same time). Radon is found in outdoor air and in the indoor air of buildings of all kinds. The EPA recommends homes be fixed if the radon level is 4 pCi/L (picocuries per liter) (150 becquerels per meter cubed (Bq/m3)) or more. Because there is no known safe level of exposure to radon, the EPA also recommends that Americans consider fixing their home for radon levels between 2 pCi/L and 4 pCi/L (75 - 150 Bq/m3) . The average indoor radon concentration for America’s homes is about 1.3 pCi/L (50 Bq/m3). It is upon this national average indoor level that the EPA based its estimate of 21,000 radon-related lung cancers a year. The average concentration of radon in outdoor air is .4 pCi/L (15 Bq/m3)or 1/10th of EPA's 4 pCi/L (150 Bq/m3)action level. Note: Countries worldwide have adopted action levels for radon exposures. Most are similar to the 4 pCi/L (150 Bq/m3) action level recommended in the United States. The action level observed should comply with the guidance of the country, state, or other local jurisdiction of authority where the test is being conducted. For more information, review Protocol for Conducting Measurements of Radon and Radon Decay Products in Multifamily, School, Commercial and Mixed-Use Buildings Section 7.1 Action Level Guidance. (ANSI/AARST MA-MFLB-2023) (source: What is EPA's Action Level for Radon and What Does it Mean? | US EPA) What is considered a high/elevated radon level? There is no safe level of radon exposure. Radon gas is measured in picocuries per liter (pCi/L). The current airborne radon level at which the EPA and IEMA recommend action is 4.0 pCi/L. Citations: [1]http://www.epa.gov/schools/guidelinestools/ehguide/downloads/OCHP_Healthy%20SchoolsFactsheet.pdf [2]"A Physician's Guide | Radon | U.S. EPA." U.S. Environmental Protection Agency. http://www.epa.gov/radon/pubs/physic.html#WhatIs (accessed December 24, 2014). [3]"Health Risks | Radon | U.S. EPA." U.S. Environmental Protection Agency. http://www.epa.gov/radon/healthrisks.html (accessed December 24, 2014). Credits: NIR would like to thank the ACS, EPA, InterNACHI, NACHI and UIC for photos and graphs included in the website. I just need a basic radon test to protect my family, who can do this? Protecting your family from radon starts with one phone call. Northern Illinois Radon LLC — part of US Environmental Testing — is your local IEMA-licensed radon measurement professional serving the greater Chicago area and all of Northern Illinois. We have been helping Illinois families breathe safely since 2015. Radon Testing & Mitigation in the United States US Environmental Testing America’s Leading Authority in Radon Detection US Environmental Testing provides nationwide radon testing, radon inspection, and radon mitigation services, serving residential, commercial, government, and institutional clients across the United States. What are the different types of radon detection? Diagnostic measurements: an initial test performed to identify radon levels in a dwelling. Follow-up measurements: a second test performed to confirm levels previously detected; usually performed to verify the results of a home-test kit or to verify another company's test result. Short- and Long- term measurement: Short- term measurements last forty-eight hours to 90-days, while long term measurements tend to last 91 days to one year in duration. Pre- and post- mitigation measurements: a pre-mitigation test may be any test performed prior to mitigation solutions are performed. While post-mitigation testing includes a second test to determine efficacy of the radon mitigation system. The post-mitigation test shall be performed 24 hours to 30-days after the installation and activation of the mitigation system. DCFS Initial & Triennial License Renewal: Need DCFS-compliant radon testing? US Environmental provides certified radon detection for Illinois homes daycares and commercial daycares, ensuring fast results and official reports for your DCFS Licensing Agents. Test Every 3 years What agencies regulate radon testing? EPA Radon Guidelines ANSI/AARST Standards HUD Environmental Protocols Why Radon Is a Nationwide Public Health Issue Radon is present in all 50 states, with elevated levels found in: Illinois Pennsylvania Ohio Colorado Iowa Radon exposure is the leading cause of lung cancer among non-smokers in the U.S. Our Nationwide Radon Services ✔ Radon Testing, Real estate transactions, Residential testing, Commercial and industrial testing ✔ Government & Institutional Services, and Schools (K–12) ✔ Daycares, Healthcare facilities, Federal & municipal buildings Radon Mitigation Professional Radon Mitigation That Works — Guaranteed Reduction If your radon levels exceed EPA limits, US Environmental Testing provides advanced radon mitigation planning, contracting, and installation designed to reduce radon levels quickly, safely, and permanently. Mitigation solutions including high-performance sub-slab depressurization systems engineered to bring radon levels below 2.0 pCi/L in most homes, commercial buildings, day care centers, industrial sites, and government facilities. What is Radon Mitigation? Radon mitigation is the process of removing radon gas from your home or building by controlling airflow and soil gas entry points. The most effective method is: Radon levels above 4.0 pCi/L Failed real estate inspection Basement or crawlspace air concerns Long-term exposure risk concerns Sub-Slab Depressurization (SSD) Creates negative pressure beneath foundation Redirects radon gas safely above roofline Prevents entry into living space Mitigation with Results! Proven Results Significant reduction within 24 hours in most cases How quickly does radon mitigation work? Most radon systems reduce elevated radon within 24 hours. Does radon mitigation require maintenance? Minimal - fan monitoring and occasional inpesection. Can radon return after mitigation ? A properly installed mitigation system will provide continuous protection. Where do you provide radon testing service? National Service Areas (Service Area Map) EPA Region 4 Alabama, Mobile (Statewide) Florida, Tallahassee (Statewide) Georgia, Savanah (Statewide) Indiana, Indianapolis (Statewide) Kentucky, Lexington (Statewide) Mississippi, Jackson (Statewide) North Carolina, Raleigh (Statewide) South Carolina, Columbia (Statewide) EPA Region 5 Illinois, Chicago (Statewide) Indiana, Indianapolis (Statewide) Michigan, Detroit (Statewide) Minnesota, Minneapolis (Statewide) Ohio, Columbus (Statewide) Wisconsin, Madison (Statewide) EPA Region 9 American Samoa, Tafuna (Territory wide) Arizona, Phoenix (Statewide) California, Los Angeles (Statewide) Guam, Dededo (Statewide) Hawaii, Honolulu (All Islands) Nevada, Las Vegas (Statewide) Northern Mariana Islands, Saipan (All Islands) Blog 331-462-2711 Request Quote