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Inquiry on effluent control in NPPs

Dear Radsafers,

In NPPs, purge of gaseous effluent in containment and discharge of waste 
water into the environment are usually performed on an intermittent basis 
(i.e. discontinuous release). Before the release, measured values should be 
compared with pre-determined concentration limits to determine whether the 
content can be released or not.  I would like to know what values does you 
set as  the pre-determined limits ?
Is it allowed to release radioactive material to the environment with 
concentrations higher than the annual average  values specified in table 2 
of Appendic B of 10CFR20 temporarily (i.e. in a short period)?

Thanks in advance.


Si Young Jang
k244jsy@kins.re.kr

Korea Inst. of Nuclear Safety
P.O.Box 114, Yusung, Taejon
Korea




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