环渤海地区Hg、As、Cr、Pb污染健康风险评价

以菲律宾蛤为指示物种,并利用美国环保署提出的人体健康风险评价模式从人类的角度对中国渤海海域不同地区(双台子河口生态监控区-盘锦、锦州湾生态监控区-锦州、滦河口北戴河生态监控区-北戴河、渤海湾生态监控区-天津、黄河口生态监控区-东营、莱州湾生态监控区-莱州以及大连市营城子、鲅鱼圈)的近岸海域生态监控区Cr、Pb、Hg、As的污染状况作出一个系统的健康风险评价。结果表明:几个地区的非致癌污染物Hg风险等级处于Ⅰ级,对于人类不构成任何威胁;致癌污染物Pb的风险等级为Ⅰ级,同样对人类也不构成任何威胁,As的风险等级基本处于Ⅲ级水平,为人类可接受水平,但Cr的风险等级基本处于Ⅴ级等级范围,可能会对人类产生一定的威胁,需要进一步研究。

Health risk assessment of mercury, arsenic, chrome and lead pollution around Bohai area

In this article Philippines clams was indicator species.We made a complete health risk assessment of mercury,arsenic,chrome and lead pollution in different areas around Bohai Bay(such as the ecological monitoring area of the Shuangtaizi River—Panjin、the ecological monitoring area of Jinzhou Bay—Jinzhou、the ecological monitoring area of Luanhe Estuary Beidaihe—Beidaihe、the ecological monitoring area of Bohai Bay—Tianjin、the ecological monitoring area of the Yellow River Estuary—Dongying、the ecological monitoring area of Laizhou Bay—Laizhou and Yingchengzi of Dalian、Bayuquan.) through using human health risk assessment model which were brought forward by USEPA.The results showed that the health risk of mercury non-carcinogenic pollutants was level Ⅰ in these areas,and was not posed any threat to human being.The health risk of lead carcinogenic pollutants was level Ⅰ,and was still not posed any threat to human being.The health risk of arsenic carcinogenic pollutants was level Ⅲ,and was accepted by human being.But the health risk of chrome carcinogenic pollutants was level Ⅴ,so it probably posed threat to human being,but need further study.