长江口外海域沉积物重金属分布特征及其环境质量评价

密蓓蓓; 蓝先洪; 张志珣; 刘升发

doi:10.3724/SP.J.1140.2013.06047

长江口外海域沉积物重金属分布特征及其环境质量评价

doi: 10.3724/SP.J.1140.2013.06047

详细信息

1. 国土资源部海洋油气资源与环境地质重点研究室, 青岛海洋地质研究所, 青岛 266071;

2. 国家海洋局第一海洋研究所, 青岛 266061

作者简介:
密蓓蓓(1984-),女,工程师,从事海洋地质学研究,E-mail:mpp302@163.com

基金项目:
国土资源部国土资源大调查项目(1212010611301)
中图分类号: P736.21

DISTRIBUTION OF HEAVY METALS IN SURFACE SEDIMENTS OFF YANGTZE RIVER ESTUARY AND ENVIRONMENTAL QUALITY ASSESSMENT

More Information

1. Key Laboratory of Marine Hydrocarbon Resources and Environment Geology, Ministry of Land and Resource, Qingdao Institute of Marine Geology, Qingdao 266071, China;

2. First Institute of Oceanography, SOA, Qingdao 266061, China

摘要: 通过对长江口外海域187个表层沉积物进行重金属(Zn、Cr、Pb、Cu、As、Cd、Hg)测试,分析其空间分布特征及其污染等级。结果显示,长江输运的重金属污染物基本沉积在长江口-浙江近岸一带,而随着离岸距离的增大,重金属含量逐渐降低,等值线大致有平行于海岸的趋势。运用沉积物富集系数法和潜在生态危害法对重金属做了污染程度评价,122.5°E以西的长江口及其邻近的浙江近岸一带,沉积物富集系数大于2,处于中等环境危害等级,而其他大范围区域均处于无-低污染程度,为低生态危害程度。重金属污染程度的这种空间分布特征主要受控于长江入海物质供给和闽浙沿岸流的输运作用。
- 沉积物 /
- 重金属 /
- 污染 /
- 长江口
Abstract: Heavy metals (Zn、Cr、Pb、Cu、As、Cd and Hg) of 187 surficial sediments from the outer part of the Yangtze River estuary were tested for study of their spatial distribution pattern and contamination level in this paper. Our results indicate that the contaminations of heavy metals transported by the Yangtze River are mainly deposited along the Yangtze River estuary-ZheJiang shoreline. The content of heavy metals decreases with the increase in distance from the shore. The contours are almost paralleled with the waterfront. The extent of heavy metal contamination is evaluated by Sediment Enrichment Factor (SEF) method and Total Potential Ecological Hazard method. The enrichment factor is larger than 2 in the west of 122.5°E off the Yangtze River estuary and the Zhejiang nearshore as a medium-hazardous polluted environment. The other part of the open sea remains unpolluted or in a-low polluted level with low ecological risk. The spatial distribution pattern of heavy metal contamination level is controlled by the materials from the Yangtze River and the Min-Zhe Coastal Current.
- sediment /
- heavy metals /
- contamination /
- Yangtze River estuary

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长江口外海域沉积物重金属分布特征及其环境质量评价

doi: 10.3724/SP.J.1140.2013.06047

1. 国土资源部海洋油气资源与环境地质重点研究室, 青岛海洋地质研究所, 青岛 266071;

2. 国家海洋局第一海洋研究所, 青岛 266061

作者简介:
密蓓蓓(1984-),女,工程师,从事海洋地质学研究,E-mail:mpp302@163.com

DISTRIBUTION OF HEAVY METALS IN SURFACE SEDIMENTS OFF YANGTZE RIVER ESTUARY AND ENVIRONMENTAL QUALITY ASSESSMENT

1. Key Laboratory of Marine Hydrocarbon Resources and Environment Geology, Ministry of Land and Resource, Qingdao Institute of Marine Geology, Qingdao 266071, China;

2. First Institute of Oceanography, SOA, Qingdao 266061, China

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长江口外海域沉积物重金属分布特征及其环境质量评价

doi: 10.3724/SP.J.1140.2013.06047

1. 国土资源部海洋油气资源与环境地质重点研究室, 青岛海洋地质研究所, 青岛 266071;

2. 国家海洋局第一海洋研究所, 青岛 266061

作者简介:
密蓓蓓(1984-),女,工程师,从事海洋地质学研究,E-mail:mpp302@163.com

English Abstract

DISTRIBUTION OF HEAVY METALS IN SURFACE SEDIMENTS OFF YANGTZE RIVER ESTUARY AND ENVIRONMENTAL QUALITY ASSESSMENT

1. Key Laboratory of Marine Hydrocarbon Resources and Environment Geology, Ministry of Land and Resource, Qingdao Institute of Marine Geology, Qingdao 266071, China;

2. First Institute of Oceanography, SOA, Qingdao 266061, China

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长江口外海域沉积物重金属分布特征及其环境质量评价

doi: 10.3724/SP.J.1140.2013.06047

1. 国土资源部海洋油气资源与环境地质重点研究室, 青岛海洋地质研究所, 青岛 266071; 2. 国家海洋局第一海洋研究所, 青岛 266061

作者简介: 密蓓蓓(1984-),女,工程师,从事海洋地质学研究,E-mail:mpp302@163.com

DISTRIBUTION OF HEAVY METALS IN SURFACE SEDIMENTS OFF YANGTZE RIVER ESTUARY AND ENVIRONMENTAL QUALITY ASSESSMENT

1. Key Laboratory of Marine Hydrocarbon Resources and Environment Geology, Ministry of Land and Resource, Qingdao Institute of Marine Geology, Qingdao 266071, China; 2. First Institute of Oceanography, SOA, Qingdao 266061, China

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长江口外海域沉积物重金属分布特征及其环境质量评价

doi: 10.3724/SP.J.1140.2013.06047

1. 国土资源部海洋油气资源与环境地质重点研究室, 青岛海洋地质研究所, 青岛 266071; 2. 国家海洋局第一海洋研究所, 青岛 266061

作者简介: 密蓓蓓(1984-),女,工程师,从事海洋地质学研究,E-mail:mpp302@163.com

English Abstract

DISTRIBUTION OF HEAVY METALS IN SURFACE SEDIMENTS OFF YANGTZE RIVER ESTUARY AND ENVIRONMENTAL QUALITY ASSESSMENT

1. Key Laboratory of Marine Hydrocarbon Resources and Environment Geology, Ministry of Land and Resource, Qingdao Institute of Marine Geology, Qingdao 266071, China; 2. First Institute of Oceanography, SOA, Qingdao 266061, China

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1. 国土资源部海洋油气资源与环境地质重点研究室, 青岛海洋地质研究所, 青岛 266071;

2. 国家海洋局第一海洋研究所, 青岛 266061

作者简介:
密蓓蓓(1984-),女,工程师,从事海洋地质学研究,E-mail:mpp302@163.com

1. Key Laboratory of Marine Hydrocarbon Resources and Environment Geology, Ministry of Land and Resource, Qingdao Institute of Marine Geology, Qingdao 266071, China;

2. First Institute of Oceanography, SOA, Qingdao 266061, China

1. 国土资源部海洋油气资源与环境地质重点研究室, 青岛海洋地质研究所, 青岛 266071;

2. 国家海洋局第一海洋研究所, 青岛 266061

作者简介:
密蓓蓓(1984-),女,工程师,从事海洋地质学研究,E-mail:mpp302@163.com

1. Key Laboratory of Marine Hydrocarbon Resources and Environment Geology, Ministry of Land and Resource, Qingdao Institute of Marine Geology, Qingdao 266071, China;

2. First Institute of Oceanography, SOA, Qingdao 266061, China