摘要
本文利用2021年8月海州湾渔港经济区及邻近海域表层沉积物中的主要污染物调查结果,讨论分析了调查海域沉积物中污染物的分布特征及生态风险。结果表明:海州湾渔港经济区沉积物中石油类、有机碳、Cu、Zn、Pb、Cd、Cr、Hg、As的含量都高于渔港邻近海域沉积物;有机碳、石油类、Zn、Cd、Cr、Hg的含量总体上从渔港向邻近海域呈现明显的下降趋势;硫化物的含量总体上从渔港向邻近海域呈现升高趋势;Cu、Pb、As的含量在渔港口门最低,总体上呈现从渔港港口向港内和邻近海域升高的趋势。部分渔港沉积物中石油类含量超过国家一类沉积物质量标准。调查海域重金属综合潜在生态风险总体上较低,但渔港经济区处于中等生态风险水平,其中,Hg和Cd潜在生态风险因子较大。
Based on investigations of major pollutants in sediments of fishing port economic zone and adjacent waters in Haizhou bay in August,2021,distribution characteristics of the pollutants were discussed and their ecological risks were evaluated.The results showed that the contents of petroleum,organic carbon,Cu,Zn,Pb,Cd,Cr,total Hg and As in fishing port economic zone were higher than that in their adjacent waters in Haizhou bay.The contents of organic carbon,petroleum,Zn、Cd、Cr and total Hg significantly decreased from the fishing port to the adjacent sea area,while the content of sulfide generally increased from the fishing port to the adjacent sea area.The contents of Cu,Pb and As were lowest in harbor entrance,generally increasing from the entrance to fishing port and the adjacent sea area.Petroleum in the sediments in some fishing port of Haizhou bay exceeded the national first-class sediment quality standards.The comprehensive potential ecological risk of heavy metals in investigated area were low on the whole,but the fishing port economic zone is at the medium ecological risk level,among which the total Hg and Cd potential ecological risk factors are large.
作者
郑江鹏
王长友
赵永刚
彭模
魏爱泓
ZHENG Jiang-peng;WANG Chang-you;ZHAO Yong-gang;PENG Mo;WEI Ai-hong(Jiangsu Provincial Environmental Monitoring Center,Nanjing 210019,China;Marine Environment Monitoring and Forecasting Center of Jiangsu province,Nanjing 210019,China;School of Marine Sciences,Nanjing University of Information Science&Technology,Nanjing 210044,China)
出处
《海洋环境科学》
CAS
CSCD
北大核心
2022年第5期731-737,共7页
Marine Environmental Science
基金
2022年度江苏省环境监测科研基金项目(2210)
2021年度省级生态环境科研项目(2021004)
2020年度江苏省生态环境科研课题(JSZC-JC2020-053,JSZC-G2020-416)。
关键词
沉积物
石油类
有机碳
硫化物
重金属
sediments
petroleum
organic carbon
sulfide
heavy metals
