What do my test results
mean?
After administering a short-term
test for radon, results will usually be sent back to
you in the mail. These results will tell you the average
level of radon present in the room during the duration
of the test. If the radon level is within the acceptable
range (below 4.0 pCi/L), no additional testing is necessary.
If you followed the instructions on the Radon Guidelines
page, the EPA considers your family and home safe from
the effects of radon gas.
If the results of the short-term
test determines the radon level are significantly above
4.0 pCi/L (for example 10.0 pCi/L), this indicates that
the radon gas levels in your home are dangerously high
and time is of the essence. You should immediately follow-up
with another short-term test to confirm the first findings.
If these results confirm the results of the first test,
you need to contact a radon reduction contractor at
once. All of these instructions, as well as information
on radon reduction, will be included with your results.
If the results of the short-term
test determines the radon level are marginally above
4.0 pCi/L (for example 5.0 pCi/L), a long-term test
should be performed to obtain a more accurate reading
of the average radon level in your home. If this long-term
test also returns results above 4.0 pCi/L, you should
consider contacting a radon reduction contractor.
What happens now?
If your test results were not
above 4.0 pCi/L, your home does not currently have average
radon levels that the EPA considers high-risk. However,
even though your levels are not in the danger zone,
if your living patterns change and you begin occupying
a lower level of your home (such as the basement), you
should retest on that level. Additionally, since other
radon factors can change (such as a crack developing
in the basement floor), it is a good idea to periodically
recheck your radon levels. A possible time frame is
every one to two years.
If your test results indicate
a radon level of 4.0 pCi/L or higher in your home, you
should consider contacting a radon reduction contractor.
A radon reduction contractor is a specialist who is
trained to fix radon problems in homes, schools, and
office buildings. Please see our Guide
to Radon Reduction Contractors page for more information.
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