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[Speciation and pollution characteristics of heavy metals in the sediment of Taihu Lake].
Huan Jing Ke Xue. 2012 Dec; 33(12):4291-9.HJ

Abstract

To explore the condition of heavy metal pollution of Taihu Lake, the contents and spatial distribution of Cd, Pb, Cu and Zn in surface sediments of Taihu Lake were studied respectively. BCR three stages sequential extraction procedure was applied to investigate the speciation and contents of four heavy metals (Cd, Pb, Cu, Zn) in the surface sediments of Taihu Lake. And the bioavailability of these four heavy metals was also determined preliminarily. At last the contamination and potential ecological risk of these elements were evaluated by potential ecological risk index. The results indicated that all 4 elements in surface sediments of Taihu Lake were enriched to some extent, especially Cd. All of these four metals existed mainly in extractable fractions which included weak soluble fraction, reducible fraction and oxidisable fraction, and the bioavailability of four metals varied with a descending order of Cd > Pb > Zn > Cu. The comprehensive assessment results showed that Cd was the primary element with high ecological risk while Pb, Cu, Zn were slight, and the order of ecological risk was Cd > Pb > Cu > Zn.

Authors+Show Affiliations

State Environmental Protection Key Laboratory of Estuary and Coastal Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. qinyw@craes.org.cnNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

English Abstract
Journal Article
Research Support, Non-U.S. Gov't

Language

chi

PubMed ID

23379155

Citation

Qin, Yan-Wen, et al. "[Speciation and Pollution Characteristics of Heavy Metals in the Sediment of Taihu Lake]." Huan Jing Ke Xue= Huanjing Kexue, vol. 33, no. 12, 2012, pp. 4291-9.
Qin YW, Zhang L, Zheng BH, et al. [Speciation and pollution characteristics of heavy metals in the sediment of Taihu Lake]. Huan Jing Ke Xue. 2012;33(12):4291-9.
Qin, Y. W., Zhang, L., Zheng, B. H., & Cao, W. (2012). [Speciation and pollution characteristics of heavy metals in the sediment of Taihu Lake]. Huan Jing Ke Xue= Huanjing Kexue, 33(12), 4291-9.
Qin YW, et al. [Speciation and Pollution Characteristics of Heavy Metals in the Sediment of Taihu Lake]. Huan Jing Ke Xue. 2012;33(12):4291-9. PubMed PMID: 23379155.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Speciation and pollution characteristics of heavy metals in the sediment of Taihu Lake]. AU - Qin,Yan-Wen, AU - Zhang,Lei, AU - Zheng,Bing-Hui, AU - Cao,Wei, PY - 2013/2/6/entrez PY - 2013/2/6/pubmed PY - 2014/4/8/medline SP - 4291 EP - 9 JF - Huan jing ke xue= Huanjing kexue JO - Huan Jing Ke Xue VL - 33 IS - 12 N2 - To explore the condition of heavy metal pollution of Taihu Lake, the contents and spatial distribution of Cd, Pb, Cu and Zn in surface sediments of Taihu Lake were studied respectively. BCR three stages sequential extraction procedure was applied to investigate the speciation and contents of four heavy metals (Cd, Pb, Cu, Zn) in the surface sediments of Taihu Lake. And the bioavailability of these four heavy metals was also determined preliminarily. At last the contamination and potential ecological risk of these elements were evaluated by potential ecological risk index. The results indicated that all 4 elements in surface sediments of Taihu Lake were enriched to some extent, especially Cd. All of these four metals existed mainly in extractable fractions which included weak soluble fraction, reducible fraction and oxidisable fraction, and the bioavailability of four metals varied with a descending order of Cd > Pb > Zn > Cu. The comprehensive assessment results showed that Cd was the primary element with high ecological risk while Pb, Cu, Zn were slight, and the order of ecological risk was Cd > Pb > Cu > Zn. SN - 0250-3301 UR - https://www.unboundmedicine.com/medline/citation/23379155/[Speciation_and_pollution_characteristics_of_heavy_metals_in_the_sediment_of_Taihu_Lake]_ L2 - https://antibodies.cancer.gov/detail/CPTC-CTLA4-1 DB - PRIME DP - Unbound Medicine ER -