Heavy Metal Contamination in the Surface Sediments of Representative Limnetic Ecosystems in Eastern China

A comprehensive analysis of heavy metal pollution was conducted in the representative limnetic ecosystems of eastern China, which are subject to rapid economic development and population growth. The results demonstrated that the average contents with standard deviations of Cd, Cr, Cu, Ni, Pb and Zn...

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Main Authors:	Tang, Wenzhong, Shan, Baoqing, Zhang, Hong, Zhang, Wenqiang, Zhao, Yu, Ding, Yuekui, Rong, Nan, Zhu, Xiaolei
Format:	Online
Language:	English
Published:	Nature Publishing Group 2014
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4239569/

id	pubmed-4239569
recordtype	oai_dc
spelling	pubmed-42395692014-12-04 Heavy Metal Contamination in the Surface Sediments of Representative Limnetic Ecosystems in Eastern China Tang, Wenzhong Shan, Baoqing Zhang, Hong Zhang, Wenqiang Zhao, Yu Ding, Yuekui Rong, Nan Zhu, Xiaolei Article A comprehensive analysis of heavy metal pollution was conducted in the representative limnetic ecosystems of eastern China, which are subject to rapid economic development and population growth. The results demonstrated that the average contents with standard deviations of Cd, Cr, Cu, Ni, Pb and Zn in the surface sediments were 0.925 ± 0.936, 142 ± 46.8, 54.7 ± 29.1, 60.5 ± 21.6, 61.9 ± 36.0 and 192 ± 120 mg/kg dry wt., respectively, and that higher values were mainly observed in the southern portion of the study area, especially in the basins of Southeast Coastal Rivers (SCRB) and the Zhu River (ZRB). The six heavy metals in the surface sediments all had anthropogenic origins. In addition, the limnetic ecosystems, especially in the southern portion of the study area were found to be polluted by heavy metals, especially Cd. Overall, two hotspots of heavy metal pollution in the limnetic ecosystems of eastern China were found, one that consisted of the heavy pollution regions, SCRB and ZRB, and another composed of Cd pollution. These results indicate that heavy metal contamination, especially Cd, should be taken into account during development of management strategies to protect the aquatic environment in the limnetic ecosystems of eastern China, especially in the two aforementioned basins. Nature Publishing Group 2014-11-21 /pmc/articles/PMC4239569/ /pubmed/25412580 http://dx.doi.org/10.1038/srep07152 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Tang, Wenzhong Shan, Baoqing Zhang, Hong Zhang, Wenqiang Zhao, Yu Ding, Yuekui Rong, Nan Zhu, Xiaolei
spellingShingle	Tang, Wenzhong Shan, Baoqing Zhang, Hong Zhang, Wenqiang Zhao, Yu Ding, Yuekui Rong, Nan Zhu, Xiaolei Heavy Metal Contamination in the Surface Sediments of Representative Limnetic Ecosystems in Eastern China
author_facet	Tang, Wenzhong Shan, Baoqing Zhang, Hong Zhang, Wenqiang Zhao, Yu Ding, Yuekui Rong, Nan Zhu, Xiaolei
author_sort	Tang, Wenzhong
title	Heavy Metal Contamination in the Surface Sediments of Representative Limnetic Ecosystems in Eastern China
title_short	Heavy Metal Contamination in the Surface Sediments of Representative Limnetic Ecosystems in Eastern China
title_full	Heavy Metal Contamination in the Surface Sediments of Representative Limnetic Ecosystems in Eastern China
title_fullStr	Heavy Metal Contamination in the Surface Sediments of Representative Limnetic Ecosystems in Eastern China
title_full_unstemmed	Heavy Metal Contamination in the Surface Sediments of Representative Limnetic Ecosystems in Eastern China
title_sort	heavy metal contamination in the surface sediments of representative limnetic ecosystems in eastern china
description	A comprehensive analysis of heavy metal pollution was conducted in the representative limnetic ecosystems of eastern China, which are subject to rapid economic development and population growth. The results demonstrated that the average contents with standard deviations of Cd, Cr, Cu, Ni, Pb and Zn in the surface sediments were 0.925 ± 0.936, 142 ± 46.8, 54.7 ± 29.1, 60.5 ± 21.6, 61.9 ± 36.0 and 192 ± 120 mg/kg dry wt., respectively, and that higher values were mainly observed in the southern portion of the study area, especially in the basins of Southeast Coastal Rivers (SCRB) and the Zhu River (ZRB). The six heavy metals in the surface sediments all had anthropogenic origins. In addition, the limnetic ecosystems, especially in the southern portion of the study area were found to be polluted by heavy metals, especially Cd. Overall, two hotspots of heavy metal pollution in the limnetic ecosystems of eastern China were found, one that consisted of the heavy pollution regions, SCRB and ZRB, and another composed of Cd pollution. These results indicate that heavy metal contamination, especially Cd, should be taken into account during development of management strategies to protect the aquatic environment in the limnetic ecosystems of eastern China, especially in the two aforementioned basins.
publisher	Nature Publishing Group
publishDate	2014
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4239569/
_version_	1613159351028023296

Heavy Metal Contamination in the Surface Sediments of Representative Limnetic Ecosystems in Eastern China

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