How can a building be tested for radon?
There are several methods that can be used to test a dwelling for radon. Here are some of the more common devices. • Charcoal Detectors: These detectors are exposed to the air in your dwelling for a period of up to seven days, then are sealed and sent for analysis. The cost of the detector and analysis is approximately $50 ‑ $100. • Passive Alpha‑Track Detectors: These devices are exposed to the air in a dwelling for periods of up to one year after which they must be returned to the laboratory for analysis. Cost of the detector and analysis is approximately $75 ‑ $100. • Active Alpha‑Track Detectors: Similar to the passive alpha‑track detector this device provides an accurate measurement for periods of one to four weeks. These units must also be returned to a laboratory for analysis at a total cost of about $75 ‑ $100. • Electret Ion Chamber (E‑perm): These units come in two variations; one for short term tests (typically a few weeks) or long term (several weeks or months). These units
