Radon terms and source notes

Terms

Radon testing

A radon test measures radon concentration. Testing does not remove radon or establish that a home is free of risk. Follow the instructions for the selected test method. Primary source.

EPA action level

EPA recommends fixing homes at 4.0 pCi/L or higher and considering reduction between 2 and 4 pCi/L. Lower concentrations still carry risk; the action level is not a boundary between risk and no risk. Primary source.

Active soil suction

An active soil-suction system uses a fan and piping to draw soil gas from beneath the home and discharge it outdoors. The fan must run continuously during normal operation. Radon measurements, not a running fan alone, assess the indoor concentration. Primary source.

Manometer and warning device

A liquid manometer indicates pressure difference, not radon concentration. Check the system warning device regularly and follow the installer's operating instructions. A changed reading is a reason for assessment, not a diagnosis of a specific defect. Primary source.

Retesting a mitigated home

EPA recommends retesting a home with a radon reduction system at least every two years. This is radon testing, not a universal two-year visual-inspection schedule. Respond to operating warnings without waiting for the routine retest. Primary source.

Renovation and testing

CDC recommends testing before and after renovations and before changes that increase time spent on a lower level. Keep these testing triggers separate from routine equipment checks. Primary source.

Clarifications and disclosures

One business, not multiple offices

This website is operated by Air Sense Environmental. Its geographic focus describes service areas, not separate offices or independent businesses.

Expert identity is not a review certificate

Jake Lusby is the owner and named radon professional. His Illinois IEMA Mitigation Professional license RNM20232346 is listed under Jacob Lusby. A byline or identity profile does not establish that he personally reviewed every page. Primary source.

Confirm the written scope

Follow-up radon testing is recommended after mitigation. Confirm its provider, price, timing and scope in the written estimate; it is not automatically included. Confirm electrical work and warranty terms rather than assuming a blanket inclusion or performance guarantee.

Equipment instructions and local requirements

EPA says electrical connections for active systems must follow local electrical codes. The actual fan model, installation instructions and jurisdiction determine the applicable installation details; general guidance is not a universal outlet, circuit or fan-orientation specification. Primary source.

Illustration and authorship disclosure

Blog posts prepared with AI assistance carry a disclosure. Images labeled as AI-generated illustrations are not photographs of customer projects or evidence of a local installation. These reference notes were also prepared with AI assistance and do not claim independent expert review.