Mongan T R, Ripple S R, Winges K D
ChemRisk Division, McLaren/Hart Environmental Engineering, Inc., Alameda, CA 94501, USA.
Health Phys. 1996 Oct;71(4):522-31. doi: 10.1097/00004032-199610000-00010.
The Colorado Department of Public Health and Environment (CDH) sponsored a study to reconstruct contaminant doses to the public from operations at the Rocky Flats nuclear weapons plant. This analysis of the accidental release of plutonium from the area known as the 903 Pad is part of the CDH study. In the 1950's and 1960's, 55-gallon drums of waste oil contaminated with plutonium, and uranium were stored outdoors at the 903 Pad. The drums corroded, leaking contaminated oil onto soil subsequently carried off-site by the wind. The plutonium release is estimated using environmental data from the 1960's and 1970's and an atmospheric transport model for fugitive dust. The best estimate of total plutonium release to areas beyond plant-owned property is about 0.26 TBq (7 Ci). Off-site airborne concentrations and deposition of plutonium are estimated for dose calculation purposes. The best estimate of the highest predicted off-site effective dose is approximately 72 microSv (7.2 mrem).
科罗拉多州公共卫生与环境部（CDH）发起了一项研究，以重建洛基弗拉茨核武器工厂运营对公众造成的污染物剂量。对被称为903垫区钚意外释放的分析是CDH研究的一部分。在20世纪50年代和60年代，装有受钚和铀污染废油的55加仑桶被存放在903垫区的户外。这些桶发生腐蚀，受污染的油泄漏到土壤上，随后被风带到厂外。钚的释放量是利用20世纪60年代和70年代的环境数据以及一个用于逃逸粉尘的大气传输模型估算的。向工厂自有场地以外地区释放的钚总量的最佳估计约为0.26太贝克勒尔（7居里）。为了进行剂量计算，估算了厂外空气中钚的浓度和沉降量。预测的最高厂外有效剂量的最佳估计约为72微希沃特（7.2毫雷姆）。
