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首页> 外文会议>NATO Advanced Research Workshop on Assessment and Management of Environmental Risks: Methods and Applications in Eastern European and Developing Countries Oct 1-4, 2000, Lisbon, Portugal >ECOTOXICITY OF RIVER AND SPRING SEDIMENT ALONG THE HANFORD REACH
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ECOTOXICITY OF RIVER AND SPRING SEDIMENT ALONG THE HANFORD REACH

机译：汉福德河沿岸河流和春季沉积物的生态毒性

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The Hanford Site was established in 1943 in order to produce plutonium for some of the nuclear weapons tested and used in World War II (Dirkes and Hanf 1997). These historic operations resulted in the production of both radiological and nonradiological wastes. In 1988, the Hanford Site was placed on the National Priorities List for environmental cleanup by the US Environmental Protection Agency. In recent years, efforts at the site have focused on characterizing and remediating contaminants in these wastes. Because some of the wastes were discharged directly into the Columbia River or have leached into the river via the groundwater pathway, several studies have examined risk to ecological receptors associated with the river (e.g., Friant and Brandt 1994; PNNL 1998). It is apparent that data gaps are extensive and additional data are needed to better characterize potential ecotoxicity of river sediments on the Hanford Site. Assessing sediment toxicity should provide integrated information on contaminant input from multiple sources (Power and Chapman 1992; Ingersoll 1995). The purpose of this study was to evaluate potential ecotoxicity of sediment samples collected primarily from areas where past operations were conducted along the Hanford Reach.
机译：汉福德基地成立于1943年，目的是为第二次世界大战中测试和使用的某些核武器生产p（Dirkes和Hanf，1997年）。这些历史性的行动导致了放射性和非放射性废物的产生。 1988年，汉福德基地被美国环境保护署列入“国家优先考虑的环境清理名单”。近年来，该现场的工作集中于表征和修复这些废物中的污染物。由于一些废物被直接排入哥伦比亚河或通过地下水路径浸出到河中，因此一些研究检查了与河有关的生态受体的风险（例如Friant和Brandt 1994; PNNL 1998）。显然，数据缺口很大，需要更多数据才能更好地表征汉福德站点上河流沉积物的潜在生态毒性。评估沉积物毒性应提供有关来自多种来源的污染物输入的综合信息（Power and Chapman 1992； Ingersoll 1995）。这项研究的目的是评估主要从沿汉福德河段进行过作业的地区收集的沉积物样品的潜在生态毒性。

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