It is all relative to where you are. People in Ramsar, Iran get a daily does of about 5 rems. See this paper http://www.jpands.org/vol13no2/luckey.pdf http://

It is all relative to where you are. People in Ramsar, Iran get a daily does of about 5 rems. See this paper http://www.jpands.org/vol13no2/luckey.pdf http://www.jpands.org/vol13no2/luckey.pdf Radiation can widely vary and very little is known about low dose radiation. The nuclear industry follows a rule called ALARA As Low As Reasonaobly Achievable which really just allows for these strict minimums. There is little proof that 5 rems will actually cause a higher probability of cancer.