湛江东海岛东排污区及其邻近海域重金属潜在生态风险和生物积累研究  

Research on the Potential Ecological Risk and Bioaccumulation of Heavy Metals in the East Sewage Discharge Area of Donghai Island in Zhanjiang and its Adjacent Sea Areas

作　　者：李延峰 袁涛萍 霍文毅[1] 刘翠梅[1] 严静 周炎武[1] Li Yanfeng;Yuan Taoping;Huo Wenyi;Liu Cuimei;Yan Jing;Zhou Yanwu(South China Sea Institute of Oceanography,CAS,Guangzhou 510301,China)

机构地区：[1]中国科学院南海海洋研究所,广东广州510301

出　　处：《广东化工》2023年第19期119-121,95,共4页Guangdong Chemical Industry

摘　　要：为研究东海岛工业尾水总管投入运行后湛江东海岛东排污区及其邻近海域重金属的污染状况,本文采用潜在生态风险和生物-沉积物积累因子法。研究表明:海域表层沉积物重金属潜在生态风险由高至低依次为汞>铅>砷>铜>镉>铬>锌,综合潜在生态风险为97.0(43.3~168.6),海域整体处于低风险,但30%调查站位属中等风险,主要集中在湛江湾口和东海岛东排污区附近。海洋生物对重金属汞、铜和镉表现出不同程度的积累情况,其中鱼类和甲壳类对重金属汞为轻微积累,软体类和甲壳类对重金属铜和镉积累程度较大。In order to study the pollution status of heavy metals in the east sewage discharge area of Donghai Island in Zhanjiang and its adjacent sea areas after the Donghai Island industrial tailwater main pipe was put into operation,this paper adopted the potential ecological risk and bio-sediment accumulation factor methods.Research shows that the potential ecological risks of heavy metals in surface sediments of the sea area from high to low are mercury>lead>arsenic>copper>cadmium>chromium>zinc.The comprehensive potential ecological risk is 97.0(from 43.3 to 168.6),and the overall risk of the sea area is low,but 30%of the surveyed stations are medium-risk,mainly concentrated near the mouth of Zhanjiang Bay and the east sewage discharge area of Donghai Island.Marine organisms show varying degrees of accumulation of heavy metals mercury,copper and cadmium.Fish and crustaceans accumulate heavy metal mercury slightly,while mollusks and crustaceans accumulate heavy metals copper and cadmium to a greater extent.

关 键 词：重金属 潜在生态风险 生物积累 东排污区 湛江东海岛 

分 类 号：TQ[化学工程]