Tom, I'm no authority on radon, but these seem to be the current levels for Sweden: 400 Bq/m3 Highest permissble level in existing buildings and working sites. 200 Bq/m3 Highest permissble level in new buildings. 2,5 MBqh/year Highest exposition for radon in newly developed mines and underground sites. 100 Bq/l Action level for radon in drinking water. 1000 Bq/l Considered not suitable as drinking water. m3 = cubic metre l = litre You might wanna download Gustav Akerblom's report "Radon Legislation and National Guidelines" http://www.ssi.se/english/RadonGustav.PDF which is a compilation of answers to a questionnaire that was sent out worldwide. The report covers the answers from 42 counties, among them all EU Member States and many states outside Europe. Hope this helps, Bjorn Sandstrom, PhD FOA SE-901 82 Umea Sweden > -----Ursprungligt meddelande----- > Från: Tom Mohaupt [mailto:tom.mohaupt@wright.edu] > Skickat: den 17 juli 2000 15:12 > Till: Multiple recipients of list > Ämne: Radon Action Levels > > > Fellow RadSafers: > > I'm interested in obtaining information on radon action levels and/or > limits in countries other than the U.S. I already have information on > France. No guesses please. > > Thank-you, > Tom > -- > Thomas Mohaupt, M.S., CHP > University Radiation Safety Officer
Radon Legislation and National Guidelines.url