全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
环境化学  2015 

环太湖河流沉积物中生物有效态重金属分布

Keywords: 太湖,河流,沉积物,重金属,生物有效性

Full-Text   Cite this paper   Add to My Lib

Abstract:

以16条环太湖主要进出河流为研究对象,采用改进的欧共体标准物质局(BCR)四步连续提取法分析其河口沉积物中重金属(Pb、Cd、Cu、Zn)形态分布特征,旨在为合理预防和治理太湖重金属污染提供依据.结果表明,表层沉积物中4种重金属的生物有效态含量均超过60%,说明在所调查的环太湖河流中它们具有较高的生物有效性和二次释放潜力,其生物有效性顺序为Zn>Cd>Cu>Pb.表层沉积物中生物有效态重金属含量总体为北部河流>南部河流,且呈现入湖河流>出湖河流.除元素Pb外,其它重金属生物有效态含量基本随剖面深度的增加而减少.

References

[1]  方晓航, 刘晓文, 魏东洋, 等.太湖流域漕桥河沉积物重金属污染特征[J].环境化学, 2012, 31(6):771-776
[2]  于瑞莲, 胡恭任.泉州湾沉积物重金属形态特征及生态风险[J].华侨大学学报, 2008, 29(3):419-423
[3]  Fan W H, Wang W X, Chen J S, et al. Cu, Ni and Pb speciation in surface sediments from a contaminated bay of Northern China[J].Marine Pollution Bulletin, 2002, 44: 816-832
[4]  Jiao W T, Chen W P, Chang A C, et al. Environmental risks of trace elements associated with long-term phosphate fertilizers applications: A review[J]. Environmental Pollution, 2012, 168: 44-53
[5]  朱广伟, 秦伯强, 高光, 等.太湖近代沉积物中重金属元素的累积[J].湖泊科学, 2005, 17(2):143-150
[6]  Allen H E, Hansen D J. The importance of trace metal speciation to water quality criteria[J].Water Environmental Research, 1996, 68(1): 42-54
[7]  张凤英, 阎百兴, 朱立禄.松花江沉积物重金属形态赋存特征研究[J].农业环境科学学报, 2010, 29(1):163-167
[8]  翟淑华, 张红举.环太湖河流进出湖水量及污染负荷(2000—2002 年)[J].湖泊科学, 2006, 18(3):225-230
[9]  王海, 王春霞, 王子健.太湖表层沉积物中重金属的形态分析[J].环境化学, 2002, 21(5):430-435
[10]  焦伟, 卢少勇, 李光德, 等.环太湖主要进出河流重金属污染及其生态风险评价[J].应用与环境生物学报, 2010, 16(4):577-580
[11]  Wang S L, Wang P, Men B, et al. Chemical forms and ecological risk of arsenic in the sediment of the Daliao River System in China[J].Environmental Monitoring and Assessment, 2012, 184: 2237-2245
[12]  Rauret G, Lopez-Sanchez J F, Sahuquillo A, et al. Application of a modified BCR sequential extraction (three-step) procedure for the determination of extractable trace metal contents in a sewage sludge amended soil reference material (CRM 483), complemented by a three-year stability study of acetic acid and EDTA extractable metal content[J].Journal of Environmental Monitoring, 2000, 2: 228-233
[13]  陈春宵, 姜霞, 占玉柱, 等.太湖表层沉积物中重金属形态分布及其潜在生态风险分析[J].中国环境科学, 2011, 31(11):1842-1848
[14]  Singh S P, Ma L Q, Tack F M G, et al. Trace metal leach ability of land-disposed dredged sediments[J].Journal of Environmental Quality, 2000, 29: 1124-1132
[15]  Du Laing G, Rinklebe J, Vandecasteele B, Meers E, Tack F M G. Trace metal behaviour in estuarine and riverine floodplain soils and sediments: A review[J]. Science of the Total Environment, 2009, 407: 3972-3985
[16]  何江, 王新伟, 李朝胜, 等.黄河包头段水-沉积物系统中重金属的污染特征[J].环境科学学报, 2003, 23(1):53-57
[17]  卢少勇, 焦伟, 金相灿, 等.环太湖河流沉积物重金属污染及其稳定度分析[J].环境科学, 2010, 31(10):2311-2314

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133