In an effort to limit
community transmission of COVID-19, RSSI is reducing in-office
staff time. RSSI is still open for business, but as a
result of the reduced staffing, turn-around times for
responses, order fulfillment, lab analyses, and instrument
calibrations may increase.
Test Your Home For Radon?
Real estate transactions: If you have decided to conduct a
radon home test as part of a real estate transaction, you may only
have time for a short-term radon test. Short-term radon
tests provide a measure of the radon level in your home only
during the brief test period. The US EPA guidelines for
radon tests of 2-7 days call for "closed house
conditions" which necessitate sealing the house by closing all
windows and using exterior doors as little as possible. The US EPA
recommends running two short-term radon tests either side-by-side
Air Chek Short-Term Radon Test Kits
Verifying short-term radon results: Before
spending money on a radon mitigation system, conduct
a long-term test. Radon levels vary in daily
and seasonal cycles and in response to weather
conditions and ventilation patterns.
Short-term radon tests may accurately report radon
levels during the few days of their test period, but
still not properly represent the long-term average
radon level to which you are exposed. The US
EPA recommends a verification test with a long-term
test kit if a short-term testing result showed radon
levels lower than 8.0 pCi/L. For initial
measurements above 8.0 pCi/L, the US EPA recommends
a verification test with another short-term test
accuracy: Long-term radon tests provide you with the most accurate
estimate of your health risk. By averaging daily and
seasonal radon fluctuations, testing for a full year will provide
the most complete picture of the average radon level in your home.
RSSI alpha-track radon detectors can also provide excellent results in
the 30-90 day test periods. Homes do not need to be sealed for
long-term alpha-track tests, as is required for short-term tests.
Alpha Track Radon Gas Test Kits
Underlying geology: Radon
levels fluctuate widely in regions of the country that have
geology: fractured limestone, caves, or underground streams.
region or in a building over a mine, yearlong testing is
recommended to account for these fluctuations. If you have
further questions, contact your state
Back to Radon Page