Clulow F V, Davé N K, Lim T P, Cloutier N R
Department of Biology, Laurentian University, Sudbury, Ontario, Canada.
Health Phys. 1988 Jul;55(1):31-5. doi: 10.1097/00004032-198807000-00003.
Radium-226 levels in samples from an inactive U tailings site at Elliot Lake, Ontario, Canada, were: 9,140 +/- 500 mBq g-1 dry weight in the substrate; 62 +/- 1 mBq g-1 dry weight in rye, Secale cereale, and less than 3.7 mBq g-1 dry weight in oats, Avena sativa, the dominant species established by revegetation of the tailings; and 117 +/- 7 mBq g-1 dry weight in washed and unwashed black cutworm larvae. Concentration ratios were: vegetation to tailings 0.001-0.007; black cutworms to vegetation 3.6 and black cutworms to tailings 0.01. The values are considered too low to be considered a hazard to herring gulls, Larus argentatus, which occasionally feed on cutworms.
加拿大安大略省埃利奥特湖一个停用的铀尾矿场地样本中的镭 - 226 水平如下：基质中干重为 9140 ± 500 毫贝克勒尔 / 克；黑麦（Secale cereale）中干重为 62 ± 1 毫贝克勒尔 / 克，而尾矿植被恢复后占优势的燕麦（Avena sativa）中干重小于 3.7 毫贝克勒尔 / 克；经洗涤和未经洗涤的小地老虎幼虫中干重为 117 ± 7 毫贝克勒尔 / 克。浓度比为：植被与尾矿之比为 0.001 - 0.007；小地老虎与植被之比为 3.6，小地老虎与尾矿之比为 0.01。这些数值被认为过低，不会对偶尔捕食小地老虎的银鸥（Larus argentatus）构成危害。
