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首页> 外文会议>International Conference on Wetlands amp; Remediation Salt Lake City, Utah, November 16-17, 1999 >Ecological risk assessment: seal beach, california national wildlife refuge
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Ecological risk assessment: seal beach, california national wildlife refuge

机译：生态风险评估：加利福尼亚国家野生动物保护区海豹滩

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摘要

Ecological risk assessment offers a means of quantifying the probability and degree of hazard posed toward the wellbeing of ecological resources by a myriad of physical, chemical and biological agents generated from human activity. The need to perform a screening-level ecological risk assessment at the Seal Beach National Wildlife Refuge, which is located within the United States Naval Weapons Station, Seal Beach, California, provided an opportunity to employ this technology in a most unique coastal setting. Evaluation of activities formerly conducted by the National Aeronautics and Space Administration indicated the presence of various organic and inorganic chemical contaminants in subsurface soil and groundwater resources located beneath the weapons station, as well as potential pathways for introduction of those contaminants to the ecological resources of the wildlife refuge. Completion of the screening-level assessment identified inorganic contaminants-- antimony, arsenic, berylliu, and manganese-as the primary "risk drivers", leading to a recommendation for definitive characterization of the extent of chemical degradation of the subsurface environs and concurrent performance of a full-scale ecological risk assessment.
机译：生态风险评估提供了一种手段，可以量化人类活动产生的大量物理，化学和生物制剂对生态资源带来的危害的可能性和程度。需要在位于加利福尼亚州海豹滩的美国海军武器站内的海豹滩国家野生动物保护区进行筛查级生态风险评估，这为在最独特的沿海环境中应用该技术提供了机会。对美国国家航空航天局以前进行的活动的评估表明，位于武器站下方的地下土壤和地下水资源中存在各种有机和无机化学污染物，以及将这些污染物引入海洋生物资源的潜在途径。野生动物保护区。筛选水平评估的完成，确定了主要的“风险驱动因素”是无机污染物-锑，砷，铍和锰-，从而提出了对地下环境化学降解的程度以及与之同时运行的确定性特征的建议。全面的生态风险评估。

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