Chapter 8 - Radon Exam (Qs &As)
A client expresses concern because, during a 7-day charcoal canister short-term
test, a brief thunderstorm passes over the home. Which of the following would
be the MOST APPROPRIATE response to give this client? Correct AnswerSince the measurement period is 7 d...
Chapter 8 - Radon Exam (Qs &As)
A client expresses concern because, during a 7-day charcoal canister short-term
test, a brief thunderstorm passes over the home. Which of the following would
be the MOST APPROPRIATE response to give this client? Correct Answer-
Since the measurement period is 7 days, the test will still be valid.
A post-mitigation radon measurement device should be placed: Correct
Answer-in the same location as the pre-mitigation test device.
According to EPA Measurement Protocols, a single radon test is acceptable for a
real estate transaction under which of the following conditions? Correct
Answer-A 48-hour measurement with an active continuous monitor which can
integrate and record a new result hourly or less.
According to the simultaneous test option for real estate transactions, when one
result is greater than 4 pCi/L and the other result is less than 4 pCi/L, a re-test is
recommended if the: Correct Answer-higher result is greater than twice the
lower result.
Follow-up measurements should always be taken: Correct Answer-in the
same location as the initial measurement.
, Chapter 8 - Radon Exam (Qs &As)
For passive (no pump) continuous monitors, the first 4 hours of data are
discarded to allow: Correct Answer-the instrument to reach equilibrium.
How close to one another must two charcoal detectors be placed if they are to
be considered collocated test devices for real estate testing? Correct Answer-
4 inches
In a real estate test, two activated charcoal canisters measured 1.5 pCi/L and 5.5
pCi/L after exposure for 48 hours at opposite ends of an occupied basement. The
client should be informed that: Correct Answer-When two collocated passive
devices (4 inches apart) are on opposite sides of the 4.0 pCi/L guidance the
results should not vary more than 2-fold. In this case one is above 4 and the
other is below 4 AND 5.5 is more than two times the lower result of 1.5. Because
of this wide variation the results are to be thrown out and the test repeated.
The correct answer is: The two results are too far apart and should be discarded
altogether.
The radon technician arrives at an unoccupied house to conduct a 48- hour
radon test with a liquid scintillation device, but notices that a bathroom window
has been left open. In this situation, the technician should close the window
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