[1]顾 佳,闫玉茹,平利姣.南通近海潮滩表层沉积物重金属含量特征与生态风险评价[J].华东地质,2017,38(02):155-160.[doi:10.16788/j.hddz.32-1865/P.2017.02.010]
　GU Jia,YAN Yu-ru,PING Li-jiao.Characteristics and ecological risk assessment of heavy metals in tidal flat surface sediments of the Nantong coastal zone[J].East China Geology,2017,38(02):155-160.[doi:10.16788/j.hddz.32-1865/P.2017.02.010]
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南通近海潮滩表层沉积物重金属含量特征与生态风险评价()
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《华东地质》[ISSN:2096-1871/CN:32-1865/P]

卷:
38
期数:
2017年02期
页码:
155-160
栏目:
环境地质
出版日期:
2017-06-15

文章信息/Info

Title:
Characteristics and ecological risk assessment of heavy metals in tidal flat surface sediments of the Nantong coastal zone
文章编号:
2096-1871(2017)02-155-06
作者:
顾 佳; 闫玉茹; 平利姣
(有色金属华东地质勘查局地球化学勘查与海洋地质调查研究院,南京 210007)
Author(s):
GU Jia;  YAN Yu-ru;  PING Li-jiao
(Institute of Geochemical Exploration and Marine Geological Survey, East China Mineral Exploration and Development Bureau for Non-ferrous Metals, Nanjing 210007,China)
关键词:
潮滩;  表层沉积物;  重金属;  生态风险评价
Keywords:
tidal flat;  surface sediments;  heavy metals;  ecological risk assessment
分类号:
X142
DOI:
10.16788/j.hddz.32-1865/P.2017.02.010
文献标志码:
A
摘要:
基于南通近海(洋口港—吕四)潮滩特点布设潮滩断面并采集表层沉积物,根据样品汞、镉、铅、砷、铬等7种重金属元素含量测试结果,分析研究区沿海潮滩表层沉积物主要重金属元素含量特征,并与江苏其他滨岸地区潮滩沉积物的重金属含量进行对比,初步探讨2009—2012年南通沿海滩涂表层沉积物重金属含量变化与元素的相关性。采用潜在生态危害指数法评价南通近海潮滩表层沉积物中7种重金属元素的潜在生态危害系数及潜在生态风险。南通潮滩表层沉积物重金属含量分布均匀,且低于江苏省苏北其他地区沿海潮滩的沉积物含量。7种重金属元素的相关分析表明,Cu与Pb、Zn具有较好的相关性,Pb与Cd、Hg的相关性最差。潜在生态危害指数法评价表明,南通近岸潮滩表层沉积物7种重金属潜在生态危害系数均属低生态危害范畴,近岸海域(洋口港—吕四段)潮滩表层沉积物环境质量总体较好。
Abstract:
Based on the characteristics of the tidal flat distribution and surface sediments of the Nantong coastal area(from Yangkou Port to Lusi coast), seven kinds of heavy metals such as mercury, cadmium, lead, arsenic, chromium, etc, were analyzed. This study analyzed the characteristic of heavy metal concentration of the sediments in this area, compared with that in other tidal flat sediments of other coastal areas of Jiangsu, and finally discussed changes of heavy metal concentrations in the surface sediments in the Nantong coastal area from 2009 to 2012 and their relationship to the elements. Potential ecological risk factors and potential ecological risk of 7 heavy metal elements in the surface sediments of the tidal flat in Nantong coastal area were preliminarily evaluated using the potential ecological risk index method. The results show that the heavy metal elements in the surface sediments of the tidal flat in Nantong are evenly distributed, and the contents of heavy metals are lower than that in other coastal tidal flat sediments in Jiangsu Province. Correlation analysis of seven kinds of heavy metal elements shows that Cu has a good correlation with Pb and Zn, and Pb has worst correlation with Cd and Hg. Risk assessment using potential ecological risk index method shows that the potential ecological risk factors triggered by seven kinds of heavy metals in the surface sediments of coastal tidal flat in Nantong belongs to low ecological risk categories, suggesting that the environmental quality of the surface sediments in the tidal flat of the coastal area(from Yangkou Port to Lusi coast)is generally good.

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备注/Memo

备注/Memo:
*收稿日期:2016-08-30 修订日期:2016-12-05 责任编辑:谭桂丽
基金项目:江苏省地质勘查基金项目“南通沿海地区地质调查评价(项目编号:苏国土资勘函(2012)1号)”资助。
第一作者简介:顾佳,1984年生,女,工程师,从事环境地球化学研究。
更新日期/Last Update: 2017-06-16