EPA Action Level for Radon

[Tom Mohaupt <tom.mohaupt@wright.edu>]

Hello Radsafers,

Does anyone know where the EPA got the 4 pCi/L (148 Bq/m^3)action level for
radon? The NCRP recommended 400 Bq/m^3 (actually 2 WLM/year) at a level
above which mitigation should occur. Did the EPA come up with this value
themselves or was is a recommendation from the National Academy of
Sciences?
Thank-you,

Tom
-- 
Thomas Mohaupt, M.S., CHP
University Radiation Safety Officer

104 Health Sciences Bldg
Wright State University
Dayton, Ohio 45435
tom.mohaupt@wright.edu
(937) 775-2169
(937) 775-3761 (fax)

"An investment in knowledge gains the best interest." Ben Franklin
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