苏北灌河口潮间带表层沉积物重金属空间分布特征及其环境效应

黄家祥; 殷勇; 徐军; 朱小兵

苏北灌河口潮间带表层沉积物重金属空间分布特征及其环境效应

1 南京大学海岸与海岛开发教育部重点实验室, 南京 210093;
2 河海大学水资源环境学院, 南京 210098

基金项目:

南京大学测试基金

江苏省自然科学基金项目(BK2002089)

详细信息

作者简介:
黄家祥(1982-),男,硕士研究生,海洋地质专业,E-mail:huangjiaxiang8848@163.com

中图分类号: P736.4
计量
- 文章访问数: 2002
- HTML全文浏览量: 167
- PDF下载量: 7
出版历程
- 收稿日期: 2007-04-27
- 修回日期: 2007-07-04

SPATIAL ACCUMULATION FEATURES AND ENVIRONMENT EFFICIENCY OF HEAVY METALS IN INTRA-TIDAL SURFACE SEDIMENTS OF GUANHE ESTUARY, NORTHERN JIANGSU

1 Ministry of Education Key Laboratory of Coast and Island Development, Nanjing University, Nanjing 210093, China;
2 Water Resources and Environment College, Hehai University, Nanjing 210098, China

摘要

摘要: 灌河是苏北地区最大、航运条件最好的入海河流。重金属元素分析显示,灌河口表层沉积物中Hg、As和Cu的含量高于背景值;Pb和Zn的含量接近背景值;Cd的含量低于背景值。其中Hg元素出现了中等程度的生态危害性,而Cr、As、Cu、Pb、Zn和Cd等元素的生态危害系数均极低,整个灌河口潮滩地区并没有出现较为严重的重金属生态危害。
- 粒度 /
- 重金属 /
- 相关性 /
- 潮滩 /
- 灌河口
Abstract: In northern Jiangsu coastal zone area, Guanhe is the biggest river and has the best navigation conditions among rivers which flow into the Yellow Sea. The grain sizes show gradually increasing from the high intra-tidal zone to the low intra-tidal zone. The heavy metal values have slight changes along both sides of the river mouth, but show an evident change perpendicular to the tidal flat. In the latter case, they show a good correlation with grain size fluctuation, that is,the heavy metal values gradually decline when the grain sizes increase from the high intra-tidal zone to the low intra-tidal zone.Analysis results of heavy metal elements show that in the Guanhe estuary surface sediments,contents of Hg,As and Cu are beyond background values; Pb and Zn are rather close to the background values; and Cd less than the values.Element Hg comes out to be harmful to ecological environment, while elements Cr,As,Cu,Pb,Zn,and Cd fall in a safe range of MPL. On the whole,Guanhe estuary tidal flat is not seriously ecological harmful due to the heavy metals.
- grain size /
- heavy metals /
- correlation /
- tidal flat /
- Guanhe estuary

HTML全文

参考文献(14)

[1]	张丽洁,王贵,姚德,等. 近海沉积物重金属研究及环境意义[J]. 海洋地质动态,2003,19(3):6-9. [ZHANG Li-jie,WANG Gui,YAO de, et al. Environmental significance and research of heavy metals in offshore sediments[J].Marine Geology Letters,2003,19(3):6-9.]
[2]	钱嫦萍,陈振楼. 潮滩沉积物重金属生物地球化学研究进展[J]. 环境科学研究,2002,15(5):49-51. [QIAN Chang-ping,CHEN Zhen-lou.Progress of biogeochemical study on heavy metals in tidal flat sediment[J].Research of Environmental Sciences,2002,15(5):49-51]
[3]	陈振楼,许世远,柳林,等. 上海滨岸潮滩沉积物重金属元素空间分布与累积[J]. 地理学报,2000,55(6):641-650. [CHEN Zhen-lou,XU Shi-yuan,LIU Lin,et al. Spatial distribution and accumulation of heavy metals in tidal flat sediments of Shanghai coastal zone[J].Acta Geographica Sinica,2000,55(6):641-650.]
[4]	刘芳文,颜文,王文质,等. 珠江口沉积物重金属污染及其潜在生态危害评价[J]. 海洋环境科学,2002,21(3):34-38.[LIU Fang-wen,YAN Wen,WANG Wen-zhi,et al. Pollution of heavy metals in the Pearl River Estuary and its assessment of potential ecological risk[J].Marine Environment Science,2002,21(3):34-38.] 表4灌河口表层沉积物重金属生态危害性评价系数Table 4 The coefficient of heavy metal harm to zoology in sediments of Guanhe estuary CdHgAsPbZnCuCr实测值/(μg/g)0.11350.075613.35521.81860.39625.27665.467背景值/(μg/g)0.3650.0328.5924.764.6815.8460.28毒性响应系数3040105152MPL0.31092.36171. 55480.88330.93381.59571.0860EHC6.219266.128115.5485.29983.73509.57436.5163
[5]	黄华瑞,庞学忠. 渤海西南潮间带沉积物中的重金属[J]. 海洋科学,1992,5:44-46.[HUANG Hua-rui,PANG Xue-zhong. Heavy metals in sediments of tidal zone from south-west Bohai Sea[J].Marine Sciences,1992 ,5:44-46.]
[6]	袁旭音,刘红樱. 苏北沿海沉积物的化学组成和重金属特征[J]. 资源调查与环境,2003,24(3):204-210. [YUAN Xu-yin,LIU Hong-ying. Chemical composition and heavy metal characteristics of sediments in the coast, northern Jiangsu Province[J]. Volcanology & Mineral Resources,2003,24(3):204-210.]
[7]	江苏省海岛资源综合调查领导小组办公室. 江苏省海岛资源综合调查报告[M].北京:科学技术文献出版社,1996:11.[The Office of the Leading Group for a Comprehensive Survey of Island Resources of Jiangsu Province. Comprehensive Survey of Island Resources in Jiangsu Province[M].Beijing:Scientific and Technical Documents Publishing House,1996:11.]
[8]	谢金赞. 灌河口外水文动力条件分析[J]. 河海大学学报,1987,10:14-19.[XIE Jin-zan. Dynamic analysis of hydrological conditions of Guanhe estuary[J]. Journal of Hehai University,1987 ,10:14-19.]
[9]	夏曾禄,李森照,李延芳. 土壤元素背景值及其研究方法[M]. 北京:气象出版社,1987:314.[XIA Zeng-lu,LI Sen-zhao,LI Yan-fang. Soil Elements Background Values and Research Methods[M]. Beijing:Meteorological Press,1987:314.]
[10]	赵一阳,鄢明才. 中国浅海沉积物地球化学[M]. 北京:科学出版社.1994:197-198.[ZHAO Yi-yang,YAN Ming-cai. Geochemistry of China Shallow Sea Sediments[M]. Beijing:Science Press.1994:197 -198.]
[11]	高会旺,张英娟. 大气污染物向海洋的输入及其生态环境效应[J].地球科学进展,2002,17(3):326-330. [GAO Hui-wang,ZHANG Ying-juan.Atmospheric inputs of pollutants to the sea and their effects on marine environment and ecosystem[J].Advance in Earth Sciences,2002,17(3):326-330.]
[12]	Zhang R S. Suspended sediment transport processes on tidal mud flat in Jiangsu Province, China[J]. Estuarine, Coastal and Science,1992,35:225-233.
[13]	甘居利,贾晓平. 近岸海域底质重金属生态风险性评价初步研究[J]. 水产学报,2000,24(6):533-538. [GAN Ju-li,JIA Xiao-ping,et al. A primary study on ecological risk caused by the heavy metals in coastal sediments[J].Journal of Fisheries of China,2000,24(6):533-538.]
[14]	Hakanson L. An ecological risk index for aquatic pollution control A sedimentological approach[J]. Water Research, 1980, 14:975-1001.