Radioactive isotopes from fallout in wastewater
Garry, J.A.; Flack, F.C.; Jakeways, R.
J Water Pollut Contr Fed 37(6): 871-875
Measurements of fallout radioactivity in sludge samples from the southwestern corner of the United Kingdom show much the same isotope content as do measurements from California. There appears to be a difference between the 2 sets of results concerning the half-lives of some of the isotopes appearing. The specific activity of primary sedimentation or return activated sludge at the time of this study (1962) was about 100 [mu][mu]c/g and showed a close correlation with rainfall.