Real estate radon testing in Pittsburgh, PA

Allegheny County, PA. Including the city of Pittsburgh and surrounding suburbs. Is classified as EPA Radon Zone 1, the highest-risk zone. The county's underlying Marcellus shale geology produces naturally-occurring radium decay, which migrates as radon gas into basement spaces. Pre-1980 housing without active sub-slab depressurization is particularly susceptible. Pittsburgh real estate transactions increasingly include radon testing. Driven both by buyer awareness and by federal lender requirements. FHA-insured loans require radon disclosure when the seller has tested. Conventional lenders (PNC, FNB, Citizens Bank) accept short-term continuous radon monitor (CRM) reports following EPA protocol. Important context: Allegheny County's Department of Health distributes free radon test kits to residents. These are legitimate for personal awareness but are NOT lender-accepted for real estate closings. Kits are passive carbon canister devices subject to operator handling variance, and the chain-of-custody is not maintained. Our 48-hour continuous radon monitor (CRM) deployment produces lender-accepted reports with hourly time-stamped readings and PA DEP-certified instrument calibration data.