Frazier - Page 41 of "Radioactivity in the Environment" gives a value of 11 Bq/m3. Ron Kathren At 10:08 AM 11/18/97 -0600, fbronson@canberra.com wrote: >Does anybody have a quick value for the typical natural activity of K-40 in >seawater? > >thanks in advance > >frazier bronson >fbronson@canberra.com > >