华盛顿东南部汉福德遗址200区高原低放射性废物处理的综合分析

C. Kincaid, M. Bergeron, C. Cole, M. Freshley, V. Johnson, D. Kaplan, R. Serne, G. P. Streile, D. Strenge, P. Thorne, L. Vail, G. Whyatt, S. Wurstner
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引用次数: 2

摘要

最近为华盛顿州东南部的汉福德场址完成了对低放射性废物处置和其他放射源的综合分析。在站点关闭后的1000年时间内,源释放和环境运输的影响被估算为一个多步骤过程,包括1)估算放射性清单和释放,2)评估通过渗透带、地下水和大气途径的污染物迁移,3)估算剂量。分析表明,在汉福德场址关闭后的头几百年里,过去使用的液体排放点和1988年以前200区高原上的固体废物掩埋场中的大部分放射性核素库存将被释放,远远早于目前和计划中的固体废物处置预计释放的时间。2050年最大预测农业剂量小于6毫雷姆/年,此后呈下降趋势。住宅、工业和娱乐情景的最大剂量分别为2.2、0.7和0.04毫雷姆/年,并且在2050年后也有所下降。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Composite Analysis for Low-Level Waste Disposal in the 200 Area Plateau of the Hanford Site, Southeast Washington
A composite analysis of low-level radioactive waste disposal and other radioactive sources was recently completed for the Hanford Site in Southeast Washington State. Impacts from source release and environmental transportwere estimated for a 1 000-year period following Site closure in a multi-step process involving 1) estimation of radiological inventories and releases, 2) assessment of contaminant migration through the vadose zone, groundwater, and atmospheric pathways, 3) and estimation of doses. The analysis showed that most of the radionuclide inventory in past-practice liquid discharge sites and pre-1988 solid waste burial grounds on the 200 Area Plateau will be released in the first several hundred years following Hanford Site closure, well before projected releases from active and planned disposals of solid waste. The maximum predicted agricultural dose was less than 6 mrem/y in 2050 and declined thereafter. The maximum doses for the residential, industrial, and recreational scenarios, were 2.2, 0.7, and 0.04 mrem/y, respectively, and also declined after 2050.
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