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Distribution and ecotoxicological significance of trace element contamination in a similar to 150 yr record of sediments in Lake Chaohu, Eastern China
Han,YM (Han, Y. M.)[1]; Cao,JJ (Cao, J. J.)[1,3]; Kenna,TC (Kenna, T. C.)[2]; Yan,BZ (Yan, Beizhan)[2]; Jin,ZD (Jin, Z. D.)[1]; Wu,F (Wu, F.)[1]; An,ZS (An, Z. S.)[1]
2011-03-30
Source PublicationJOURNAL OF ENVIRONMENTAL MONITORING
Volume13Issue:3Pages:743-752
Subtype期刊论文
Abstract

This paper presents the concentrations, vertical profiles and possible sources of selected major and trace elements in a sediment core covering similar to 150 years of sedimentation in Lake Chaohu, eastern China. Element concentrations were measured by portable X-ray Fluorescence Spectroscopy (XRF) and were used to evaluate possible environmental consequences of the recent industrialization in China. Statistical analyses identify four groups: (1) organic carbon (OC), total nitrogen (TN), Pb, Zn, and As associated with the use of chemical fertilizers and pesticides; (2) Mn, Cr, Ni and Cu from industrial and mining activities; (3) Fe, Rb, K, Co, Ti and Ca influenced by post-depositional processes and land exploitation; and (4) Zr and Sr from the soil. The vertical profiles of elements placed in the first two groups show distinct increases in concentrations above depths of 20 cm (similar to 1978), coincident with the timing of industrialization in China, and the anthropogenic-derived fluxes are higher than the lithogenic-derived fluxes over the last three decades. With the exception of Zr and Sr, association of the measured metals with organic carbon and nitrogen suggests that organic matter may act as a carrier phase. The geoaccumulation index (I(geo)) reveals increased contamination from elements in the first two groups in recent years. Element concentrations, compared with the Effects Range-Low (ERL) and Effects Range-Median (ERM) levels set by NOAA, suggest that adverse biological effects from Ni contamination are very likely.

DOI10.1039/c0em00551g
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10239
Collection粉尘与环境研究室
Corresponding AuthorHan,YM (Han, Y. M.)[1]
Affiliation1.SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences,Xi’an, 710075, China;
2.Columbia University, Lamont Doherty Earth Observatory, Palisades, NY,10964, USA;
3.Institute of Global Environmental Change, Xi’an Jiaotong University,Xi’an, China
Recommended Citation
GB/T 7714
Han,YM ,Cao,JJ ,Kenna,TC ,et al. Distribution and ecotoxicological significance of trace element contamination in a similar to 150 yr record of sediments in Lake Chaohu, Eastern China[J]. JOURNAL OF ENVIRONMENTAL MONITORING,2011,13(3):743-752.
APA Han,YM .,Cao,JJ .,Kenna,TC .,Yan,BZ .,Jin,ZD .,...&An,ZS .(2011).Distribution and ecotoxicological significance of trace element contamination in a similar to 150 yr record of sediments in Lake Chaohu, Eastern China.JOURNAL OF ENVIRONMENTAL MONITORING,13(3),743-752.
MLA Han,YM ,et al."Distribution and ecotoxicological significance of trace element contamination in a similar to 150 yr record of sediments in Lake Chaohu, Eastern China".JOURNAL OF ENVIRONMENTAL MONITORING 13.3(2011):743-752.
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