The RadTrak radon gas testing device accommodates the preferred Health Canada long-term radon test protocol to account for daily and weekly fluctuations in radon gas levels, contrasting a short-term test which could yield a false high/low report. The RadTrak has been used by the US Environmental Protection Agency, US Department of Energy, US Department of Defense, National Institute of Health, American Lung Association, and numerous other public and private organizations and is trusted worldwide.
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NRPP APPROVED DEVICE:
90 - 365 DAYS
For this method, the detector is a small piece of special plastic or film inside a small container. Air being tested diffuses through a filter covering a hole in the container. When alpha particles from radon and its decay products strike the detector, they cause damage tracks. At the end of the test the container is sealed and returned to a laboratory for reading.
The plastic or film detector is treated to enhance the damage tracks and then the tracks over a predetermined area are counted using a microscope or optical reader. The number of tracks per area counted is used to calculate the radon concentration of the site tested. Exposure of alpha track detectors is usually 3 to 12 months, but because they are true integrating devices, alpha track detectors may be exposed for shorter lengths of time when they are measuring higher radon concentrations.
More details about (AT) Alpha Track Detection
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