河北省近岸海域沉积物重金属污染的生态风险研究

Ecological Risk Assessment of Heavy Metals Pollution in Sediment of Offshore Marine Areas in Hebei Province

采用潜在生态危害指数法和生物效应浓度法,对河北省近岸海域沉积物中重金属污染进行了评价。结果表明,两种方法评价结果一致,河北省近岸海域沉积物重金属污染程度表现为沧州>唐山>秦皇岛,且同期的底栖动物群落结构响应明显、趋势一致;Hg、As是主要的潜在生态风险因子,应作为污染控制重点对象。

Methods of potential ecological risk index and concentration of biological effect were applied to evaluating the heavy metals pollution in the sediments of offshore marine areas of Hebei Province.The results showed that the evaluation results of the two methods were basically the same;The heavy metals pollution of the study area showed as CangzhouTangshanQinhuangdao.And significant ecological responses were obviously discovered in the macrobenthic community of the same period,Hg and As were the main ecological risk factors,which should be the focus of pollution control.