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NRPP Radon Measurements Flashcards| Questions and 100% Complete Solutions
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NRPP Radon Measurements Flashcards|Questions and 100% Complete Solutions
According to EPA's linear, no threshold health risk model, which set of circumstances would
present the highest health risk from radon?(Assume all things equal such as climate,
occupancy, etc.) Living in a home at: 100 pCi/L for 1 year 30 pCi/L for 8 years 10 pCi/l for
15years 5 pCi/L for 8 years - ✔38 0 pCi/L for years
The greatest health risk from radon generally comes from: - ✔Alpha particles released
from radon decay products attached to lung tissue.
More lung cancers are caused by radon than any other cancer causing agent. - ✔False
Highly energetic gamma, released when radon decays, causes lung cancer. - ✔False
Exposure to radon for long periods of time increases the risk of lung cancer. - ✔True
What weather conditions cause the greatest spikes in indoor radon concentrations during a
two day test? - ✔High winds and/or heavy rain fall
Which radon entry mechanism typically causes the greatest amount of radon entry in homes? -
✔Radon laden soil gases drawn into homes under vacuum caused by pressure differences .
,Which type of test interference would have the greatest impact on the results of a short-term
radon test ?Changing the forced air furnace fan to run constantly, OR opening windows for
several hours during the day? - ✔Opening up windows for several hours during the day.
A homeowner does not close up the house for 12 hours prior to your arrival to conduct a short-
term test with an electret ion chamber (EIC).How can you perform the test in accordance with
EPA protocols? - ✔Close doors and windows and deploy the test device for 96 hours (4days) .
Contrary to your instructions, a homeowner did not close upthe house for 12 hours prior to
your arrival to perform a short-term test using a continuous radon monitor. What would be an
appropriate approach to initiate a test, usable in the most timely manner? - ✔Close up the
doors and windows. Start the test immediately using a continuous radon monitor. Tell the
homeowners to keep the windows closed all during the test. Run the test for a full 60 hours but
only use the last 48 hours of data.
According to EPA protocols, what is the minimum distance a radon measurement device
should be placed from other objects? - ✔At least 4 inches
Name at least locations that would be inappropriate to three place a radon
measurement device, according to EPA protocols. - ✔Bathroom
Closet
Laundry room
Drawer
Kitchen
Crawlspace
Garage
Cupboard
According to EPA protocols, what is the minimum distance a radon measurement device should
be below the ceiling of the room in which it is placed? - ✔At least 12 inches
, According to EPA protocols, what is the minimum distance a radon measurement device
should be placed from an exterior opening such as a door or window? - ✔At least 36 inches
According to EPA protocols, what is the minimum distance a radon measurement device
should be placed from an exterior wall? - ✔At least 12 inches
When conducting a short-term radon measurement, openings to the outside should be
closed, including combustion air and bathroom exhaust fans. - ✔False
When conducting a short-term radon measurement, evaporative coolers(swamp coolers)
may be operated for cooling. - ✔False
When conducting a short-term radon measurement, air-conditioning systems that only
recirculate interior air may be operated. - ✔True
When conducting a short-term radon measurement, whole house fans may be operated
provided exterior doors and windows are closed. - ✔False
Following an initial short-term test with results above 4 pCi/L, a long-term test is requested by
the client. Under what conditions should the long-term test be conducted? - ✔The test
should be conducted in the same location as the initial test, and under normal lived-in
conditions.
What is the minimum time a radon mitigation system should operate before post-mitigation
testing is started? - ✔24 hours
Prior to initiating a short-term test lasting for 2 to 3 days, one should instruct the occupant to: -
✔Close all exterior doors and windows for 12 hours prior to initiating the test.
What would be the best advice for a client planning to renovate a home? - ✔Perform a
short-term test both prior to and after renovation.
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