宁波杭州湾新区海域环境质量现状评价  

Evaluation of the Current Situation of Environmental Quality in Hangzhou Bay New District,Ningbo

作　　者：王姮[1,2] 张玉荣 李子孟[1,2] 鲍静姣 严峻 WANG Heng;ZHANG Yu-rong;LI Zi-meng(Marine Fisheries Research Institute of Zhejiang,Zhoushan,Zhejiang 316021;Key Lab of Sustainable Utilization of Technology Research for Fishery Resource of Zhejiang,Zhoushan,Zhejiang 316021)

机构地区：[1]浙江省海洋水产研究所,浙江舟山316021 [2]浙江省海洋渔业资源可持续利用技术研究重点实验室,浙江舟山316021

出　　处：《安徽农业科学》2020年第21期59-62,共4页Journal of Anhui Agricultural Sciences

基　　金：浙江省基础公益研究计划项目(LGC19D060001)。

摘　　要：依据2018年4月对宁波杭州湾新区附近海域的环境质量调查结果,运用富营养化指数法、沉积物重金属富集系数法、潜在生态风险指数法分析海域水体富营养化程度和沉积物重金属污染程度。结果表明,宁波杭州湾新区附近海域水质中除无机氮、活性磷酸盐站位超标率为100%外,其他指标均符合海水水质Ⅱ类标准。沉积物中除Cu的站位超标率为4%,其他指标均符合Ⅰ类海洋沉积物质量标准。所有站位富营养化指数均大于1,该海域处于较为严重的富营养化状态。沉积物重金属综合潜在生态风险系数(RI)均值为44.76,潜在生态危害轻微。Based on the environmental quality survey results of the area near Hangzhou Bay in Ningbo in April 2018,the eutrophication index method,sediment heavy metal enrichment factor method and potential ecological risk index method were used to analyze the eutrophication of the water and the heavy metal pollution in the sediment.The results showed that in addition to the inorganic nitrogen and activated phosphate stations exceeding the standard rate of 100%in the water quality near the Hangzhou Bay New District of Ningbo,all other indicators met the second category of seawater quality standards.The rate of Cu removal from the sediments in the sediment exceeded the standard rate of 4%,and other indicators met the quality standards of the first type of marine sediments.The eutrophication index of all stations was greater than 1,and the sea area was in a relatively serious eutrophication state.The average value of the comprehensive potential ecological risk coefficient of heavy metals in the sediment was 44.76,and the potential ecological harm was slight.

关 键 词：环境质量 海水水质 富营养化 重金属 富集系数法 潜在生态风险 杭州湾 

分 类 号：X82[环境科学与工程—环境工程]