摘要
以2019年夏季采自南海的11种游泳动物为研究对象,测定分析其体内重金属(Cu、Pb、Zn、Cd、Cr、As和Hg)的含量,并评估了上述重金属的污染状况和健康风险。结果显示,7种重金属在生物体中的含量,均符合国内相关污染评价标准。单因子污染指数均值依次为Zn>Cr>As>Hg>Pb>Cd>Cu,虽然个别物种的部分元素达到轻度或中度污染水平,但生物体内7种重金属的综合污染评价均属于无污染状态。健康风险评估结果表明,其膳食暴露风险、非致癌与致癌风险都较低。研究结果表明,南海夏季游泳动物体内重金属含量较低,几乎不存在人类食用健康风险。
To evaluate the pollution statue and health risk of heavy metal in nekton of South China Sea, 11 species were collected from June to July 2019. The concentration of copper(Cu), zinc(Zn), lead(Pb), cadmium(Cd), chromium(Cr), arsenic(As) and mercury(Hg) were measured. The results showed that the contents of 7 heavy metals met the applicable national standards. Using single factor index, a descending order of heavy metal levels showed as Zn>Cr>As>Hg>Pb>Cd>Cu, and some species were moderately polluted. Both the metal pollution index and Nemerow multi-factor index indicated all the organisms were in pollution-free states. Low risk of dietary exposure, little or none carcinogenic and noncarcinogenic risk indicated acceptable consumption of nekton in South China Sea.
作者
刘洋
林彩
陈金民
林辉
林龙山
李渊
LIU Yang;LIN Cai;CHEN Jin-min;LIN Hui;LIN Long-shan;LI Yuan(Third Institute of Oceanography,Ministry of Natural Resources,Xiamen 361005,China)
出处
《海洋环境科学》
CAS
CSCD
北大核心
2021年第3期401-406,416,共7页
Marine Environmental Science
基金
全球变化与海气相互作用专项-南海中南部夏季游泳动物调查项目(GASI-02-SCS-YSMsum)
全球变化与海气相互作用专项-南海深层海水资源特性评估及典型开发应用项目(GASI-03-02-02-05)。
关键词
重金属
污染状况
健康风险
游泳动物
南海
heavy metal
pollution status
risk assessment
nekton
South China Sea
