[1]裘奕斐,王 静,徐 敏.江苏滨海县近岸海域海水、沉积物和生物体[J].南京师大学报(自然科学版),2021,44(01):71-78.[doi:10.3969/j.issn.1001-4616.2021.01.011]
　Qiu Yifei,Wang Jing,Xu Min.Distribution and Health Risk Assessment of Heavy Metals in Seawater,Sediments and Organisms in Coastal Areas of Binhai in Jiangsu Province[J].Journal of Nanjing Normal University(Natural Science Edition),2021,44(01):71-78.[doi:10.3969/j.issn.1001-4616.2021.01.011]
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江苏滨海县近岸海域海水、沉积物和生物体()
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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

卷:
第44卷
期数:
2021年01期
页码:
71-78
栏目:
·海洋科学·
出版日期:
2021-03-15

文章信息/Info

Title:
Distribution and Health Risk Assessment of Heavy Metals in Seawater,Sediments and Organisms in Coastal Areas of Binhai in Jiangsu Province
文章编号:
1001-4616(2021)01-0071-08
作者:
裘奕斐; 王 静; 徐 敏
南京师范大学海洋科学与工程学院,江苏 南京 210023
Author(s):
Qiu Yifei; Wang Jing; Xu Min
College of Marine Science and Engineering,Nanjing Normal University,Nanjing 210023,China
关键词:
重金属分布及健康风险评价
Keywords:
heavy metal; comprehensive pollution index method of water quality; comprehensive potential ecological risk; target hazard quotients(THQ); bioaccumulation ability
分类号:
P76
DOI:
10.3969/j.issn.1001-4616.2021.01.011
文献标志码:
A
摘要:
对江苏滨海县近岸海域2019年1月、4月、7月、10月、12月所采样品中海水、沉积物和生物体中重金属含量进行了分析. 海水中重金属浓度各月份平均值均符合一类海水水质标准,1月、4月、12月存在部分站位重金属浓度超标; 调查海域各月份水质污染指数4～12月呈递减趋势,总体数值较为稳定,没有受到重金属污染. 所有站位沉积物中重金属浓度均符合一类海洋沉积物质量标准,6种重金属的潜在生态危害指数由大到小依次为Cd>As>Hg>Pb>Cu>Zn,且均属于低危害程度; 综合潜在生态危害指数1月数值最高,全年数值较为稳定,属于低危害程度. 本研究选取的3种海产品每周评估摄入量(EWI)均低于WHO制定的人类暂定每周允许摄入量(PTWI); 相比于沉积物,海洋生物从海水中富集重金属的能力更强; 危害商数的结果表明研究区内棘头梅童鱼存在了一定程度的As污染,其余重金属均为低危害等级.
Abstract:
In this paper,the contents of heavy metals in seawater,sediments and organisms in coastal areas of Binhai in Jiangsu Province in January,April,July,October and December 2019 were analyzed. Among them,the monthly average concentration of heavy metals in the seawater met Grade I of the Seawater Quality Standard of China,among which heavy metal concentration exceeds the standard in some stations in January,April and December. The water quality pollution index of each month in the surveyed sea area showed a decreasing trend from April to December,and the overall value was relatively stable without heavy metal pollution. The concentration of heavy metals in the sediments at all stations met Grade I of the Sediment Quality Standard of China. The potential ecological hazard indexes of the six heavy metals ranged from Cd>As>Hg>Pb>Cu>Zn,and were of low harm degree. The comprehensive potential ecological hazard index was the highest in January,and the annual value was relatively stable,indicating a low hazard level. The estimated weekly intake(EWI)of the three seafood products selected in this paper was all lower than the provisional tolerable weekly intake(PTWI)for human beings established by WHO. Marine organisms were more capable of accumulating heavy metals from seawater than from sediments. The results of target hazard quotients(THQ)showed that there was a certain degree of As pollution in Collichthys lucidus in the study area,and the other heavy metals were of low hazard grade.

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备注/Memo

备注/Memo:
收稿日期:2020-12-08.
基金项目:国家自然科学基金项目(41373115)、江苏省高校重大自然科学研究项目(19KJA180004).
通讯作者:徐敏,博士,教授,博士生导师,研究方向:海洋资源与环境. E-mail:xumin0895@njnu.edu.cn
更新日期/Last Update: 2021-03-15