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Test Methods

ACTIVE METHOD: Continuous Monitors

PASSIVE METHODS: Charcoal Canisters, Electrets, etc.

LONG TERM PASSIVE METHODS: Alpha Track, Electrets, etc.

Note: Device accuracy is less a question than improper use, interpretation, or insufficient data.

ACTIVE METHOD: Continuous Monitors

Requires special equipment utilized by many testing professionals. Information provided includes hourly data regarding radon fluctuations, device movement, power outages and other data to enhance an understanding of the test results.

 

PASSIVE METHODS: Charcoal Canisters, Electrets, etc.

They provide only a single numeric value that represents the average reading for a short-term test period of at least a few days. More than one test or test device is always recommended when using passive devices.

LONG TERM PASSIVE METHODS: Alpha Track, Electrets, etc.

They provide a single numeric value that represents the average reading for a long-term test period. A long term test lasts at least 90 days. However, six months to a year is recommended since long term tests are often employed to gain a more complete understanding of actual dosage. More than test device is recommended with passive devices.

NOTE: Information provided here is
intended to be simplistic in description.