Article ; Online: Risk analysis of heavy metal concentration in surface waters across the rural-urban interface of the Wen-Rui Tang River, China.
Environmental pollution (Barking, Essex : 1987)
2018 Volume 237, Page(s) 639–649
Abstract: ... heavy metals (As, Pb, Cd, Cr, Hg, Cu, Zn) from 14 sites spanning the rural-urban interface of the Wen-Rui Tang ...
Abstract | Heavy metal pollution is a major concern in China because of its serious effects on human health. To assess potential human health and ecological risks of heavy metal pollution, concentration data for seven heavy metals (As, Pb, Cd, Cr, Hg, Cu, Zn) from 14 sites spanning the rural-urban interface of the Wen-Rui Tang River watershed in southeast China were collected from 2000 to 2010. The heavy metal pollution index (HPI), hazard index (HI) and carcinogenic risk (CR) metrics were used to assess potential heavy metal risks. Further, we evaluated the uncertainty associated with the risk assessment indices using Monte Carlo analysis. Results indicated that all HPI values were lower than the critical level of 100 suggesting that heavy metal levels posed acceptable ecological risks; however, one site having an industrial point-source input reached levels of 80-97 on several occasions. Heavy metal concentrations fluctuated over time, and the decrease after 2007 is due to increased wastewater collection. The HI suggested low non-carcinogenic risk throughout the study period (HI < 1); however, nine sites showed CR values above the acceptable level of 10 |
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MeSH term(s) | Arsenic/analysis ; China ; Ecology ; Environmental Monitoring ; Environmental Pollution/analysis ; Humans ; Mercury/analysis ; Metals, Heavy/analysis ; Risk Assessment ; Rivers/chemistry ; Water Pollutants, Chemical/analysis |
Chemical Substances | Metals, Heavy ; Water Pollutants, Chemical ; Mercury (FXS1BY2PGL) ; Arsenic (N712M78A8G) |
Language | English |
Publishing date | 2018-06 |
Publishing country | England |
Document type | Journal Article |
ZDB-ID | 280652-6 |
ISSN | 1873-6424 ; 0013-9327 ; 0269-7491 |
ISSN (online) | 1873-6424 |
ISSN | 0013-9327 ; 0269-7491 |
DOI | 10.1016/j.envpol.2018.02.020 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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