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[Residues and potential ecological risk assessment of metal in sediments from lower reaches and estuary of Pearl River].
Huan Jing Ke Xue. 2012 Jun; 33(6):1808-15.HJ

Abstract

In order to investigate the heavy metal concentrations and their potential ecological risks in surface sediments of lower reaches and estuary of Pearl River, 21 bottom sediment samples were collected from lower reaches and estuary of Pearl River. Total contents of Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Cd, Sb, Pb and Hg in these samples were measured by the inductively coupled plasma mass spectrometry (ICP-MS) and the atomic fluorescence spectrometry (AFS) and using the index of geoaccumulation and the potential ecological risk index to evaluate the pollution degree of heavy metals in the sediments. Results indicated that the concentration of total Fe and total Mn were 41658.73 and 1104.73 mg x kg(-1) respectively and toxic trace metals, such as Cr, Co, Ni, Cu, Zn, As, Se, Cd, Sb, Pb and Hg were 86.62, 18.18, 54.10, 80.20, 543.60, 119.55, 4.28, 10.60, 20.26, 104.58 and 0.520 mg x kg(-1). The descending order of pollution degree of various metals is: Cd > As approximately Zn > Hg > Pb approximately Cu approximately Cr, while the single potential ecological risk followed the order: Cd > Hg > As > Cu > Pb > Zn > Cr. The pollution extent and potential ecological risk of Cd were the most serious among all heavy metals. The distribution pattern of Cd individual potential ecological risk indices is exactly the same as that of general potential ecological risk indices for all heavy metals. Clustering analysis indicates that the sampling stations may be classified into five groups which basically reflected the characteristics of the heavy metal contamination and sedimentation environments along the different river reaches in lower reaches and estuary of Pearl Rive. In general, the serious heavy metal pollution and the high potential ecological risk existed in three river reaches: Chengcun-Shawan, Chengcun-Shundegang and Waihai-Hutiaomen. The pollution degree and potential ecological risk are higher in related river reaches of Beijiang than that in other lower reaches and estuary of Pearl River.

Authors+Show Affiliations

Xie WP
Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China. xwp7118@163.com
Wang SB
No affiliation info available
Zhu XP
No affiliation info available
Chen KC
No affiliation info available
Pan DB
No affiliation info available
Hong XY
No affiliation info available
Yin Y
No affiliation info available

MeSH

ChinaCluster AnalysisEcological and Environmental PhenomenaEnvironmental MonitoringGeologic SedimentsMetals, HeavyRisk AssessmentRiversWater Pollutants, Chemical

Pub Type(s)

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

Language

chi

PubMed ID

22946159

Citation

Xie, Wen-Ping, et al. "[Residues and Potential Ecological Risk Assessment of Metal in Sediments From Lower Reaches and Estuary of Pearl River]." Huan Jing Ke Xue= Huanjing Kexue, vol. 33, no. 6, 2012, pp. 1808-15.
Xie WP, Wang SB, Zhu XP, et al. [Residues and potential ecological risk assessment of metal in sediments from lower reaches and estuary of Pearl River]. Huan Jing Ke Xue. 2012;33(6):1808-15.
Xie, W. P., Wang, S. B., Zhu, X. P., Chen, K. C., Pan, D. B., Hong, X. Y., & Yin, Y. (2012). [Residues and potential ecological risk assessment of metal in sediments from lower reaches and estuary of Pearl River]. Huan Jing Ke Xue= Huanjing Kexue, 33(6), 1808-15.
Xie WP, et al. [Residues and Potential Ecological Risk Assessment of Metal in Sediments From Lower Reaches and Estuary of Pearl River]. Huan Jing Ke Xue. 2012;33(6):1808-15. PubMed PMID: 22946159.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Residues and potential ecological risk assessment of metal in sediments from lower reaches and estuary of Pearl River]. AU - Xie,Wen-Ping, AU - Wang,Shao-Bing, AU - Zhu,Xin-Ping, AU - Chen,Kun-Ci, AU - Pan,De-Bo, AU - Hong,Xiao-You, AU - Yin,Yi, PY - 2012/9/6/entrez PY - 2012/9/6/pubmed PY - 2013/10/1/medline SP - 1808 EP - 15 JF - Huan jing ke xue= Huanjing kexue JO - Huan Jing Ke Xue VL - 33 IS - 6 N2 - In order to investigate the heavy metal concentrations and their potential ecological risks in surface sediments of lower reaches and estuary of Pearl River, 21 bottom sediment samples were collected from lower reaches and estuary of Pearl River. Total contents of Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Cd, Sb, Pb and Hg in these samples were measured by the inductively coupled plasma mass spectrometry (ICP-MS) and the atomic fluorescence spectrometry (AFS) and using the index of geoaccumulation and the potential ecological risk index to evaluate the pollution degree of heavy metals in the sediments. Results indicated that the concentration of total Fe and total Mn were 41658.73 and 1104.73 mg x kg(-1) respectively and toxic trace metals, such as Cr, Co, Ni, Cu, Zn, As, Se, Cd, Sb, Pb and Hg were 86.62, 18.18, 54.10, 80.20, 543.60, 119.55, 4.28, 10.60, 20.26, 104.58 and 0.520 mg x kg(-1). The descending order of pollution degree of various metals is: Cd > As approximately Zn > Hg > Pb approximately Cu approximately Cr, while the single potential ecological risk followed the order: Cd > Hg > As > Cu > Pb > Zn > Cr. The pollution extent and potential ecological risk of Cd were the most serious among all heavy metals. The distribution pattern of Cd individual potential ecological risk indices is exactly the same as that of general potential ecological risk indices for all heavy metals. Clustering analysis indicates that the sampling stations may be classified into five groups which basically reflected the characteristics of the heavy metal contamination and sedimentation environments along the different river reaches in lower reaches and estuary of Pearl Rive. In general, the serious heavy metal pollution and the high potential ecological risk existed in three river reaches: Chengcun-Shawan, Chengcun-Shundegang and Waihai-Hutiaomen. The pollution degree and potential ecological risk are higher in related river reaches of Beijiang than that in other lower reaches and estuary of Pearl River. SN - 0250-3301 UR - https://www.unboundmedicine.com/medline/citation/22946159/[Residues_and_potential_ecological_risk_assessment_of_metal_in_sediments_from_lower_reaches_and_estuary_of_Pearl_River]_ L2 - https://antibodies.cancer.gov/detail/CPTC-CTLA4-1 DB - PRIME DP - Unbound Medicine ER -