基于风险分析的流域优先有机污染物筛查:方法构建

A Risk-based Screening Approach for Priority Organic Contaminants at the Watershed Scale: Method Development

化学品的大量使用和排放进入水环境,对水生态系统产生诸多不利影响。因此,流域环境管理的重点之一就是如何筛查具有潜在风险的优先污染物。对于流域环境介质中污染物筛查而言,难点和关键是如何建立高效的分析方法来尽可能多的获取环境介质中的污染物信息,进而对其危害及风险水平进行判断与筛查。对在流域环境介质中污染物筛查方面具有潜在应用可能性的环境分析方法进行了综述,提出了以高通量分析方法为基础的基于概率风险分析的流域优先有机污染物筛查方法体系,并对体系中涉及的筛查基准、数据选择等关键问题进行了讨论。

Massive chemical substances enter the aquatic environment due to their wide uses and emissions,causing adverse effects on the aquatic ecology. Thus the key issue of watershed management is to identify organic pollutants with potential risks. For the environmental matrix,the challenge lies in how to develop a high throughout screening method to gain a picture of the organic pollutants. In the present study,we reviewed the possible method that can be used in the screening analysis,and put forward a risk-based screening system that incorporated the high throughout analytical method. Setting of screening benchmark and selection procedure of data were also discussed.