南麂海域水质营养盐和表层沉积物重金属污染评价  

Evaluation of Nutrients in Water Quality and Heavy Metals in Surface Sediments in Nanji Sea Area

作　　者：阮素玲 李敏[1,2] 陆荣茂[1,2] 肖国强[1,2] 张翔[1,2] 陆振 RUAN Su-ling;LI Min;LU Rong-mao(Zhejiang Mariculture Research Institute,Wenzhou,Zhejiang 325005;Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-resource,Wenzhou,Zhejiang 325005)

机构地区：[1]浙江省海洋水产养殖研究所,浙江温州325005 [2]浙江省近岸水域生物资源开发与保护重点实验室,浙江温州325005

出　　处：《安徽农业科学》2021年第12期60-63,共4页Journal of Anhui Agricultural Sciences

基　　金：浙江省海洋水产养殖研究所横向项目(FW2019002)。

摘　　要：于2019年5月、8月、12月和2020年3月对南麂海域的环境(海水和沉积物)进行调查,采用有机污染评价指数(A)法、营养状态质量指数(NQI)法对水环境进行评价,用潜在生态危害指数(RI)法对表层沉积物重金属潜在生态危害进行评价。结果表明,南麂海域海水水质除无机氮(DIN)外,其余参数基本能符合二类海水水质标准。南麂海域海水水质除2019年12月各层A值较其他略高外,其他监测时间水质状况较好。营养状态质量指数处于贫营养水平(NQI<2)。表层沉积物除铜(Cu)和铬(Cr)外,其余参数均符合第一类海洋沉积物质量标准。沉积环境处于轻微生态危害状态(E^(i)_(j)<30,RI<100)。We investigated the environment(sea water and sediments)in Nanji sea area in May 2019,August 2019,December 2019 and March 2020.The organic pollution evaluation index(A)and nutritional status quality index(NQI)were used to evaluate water environment.Meanwhile potential ecological hazard index(RI)was used to evaluate the potential ecological hazards of heavy metals in surface sediments.The results showed that except for DIN,the other parameters of the seawater quality in the Nanji sea area could basically meet the second-class seawater quality standards.The A value of each layer was slightly higher in December 2019.The water quality was better at other monitoring times in the Nanji sea area.The nutritional status quality index was at the oligotrophic level(NQI<2).Except for Cu and Cr,the other parameters of the surface sediment could meet the quality standards of the first type of marine sediment.The sedimentary environment was in a state of slight ecological hazard(E^(i)_(j)<30,RI<100).

关 键 词：营养盐 表层沉积物 重金属 有机污染评价指数 营养状态质量指数 潜在生态危害指数 南麂海域 

分 类 号：X834[环境科学与工程—环境工程]