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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Hydro-environment : Pollution status, source, and health risk of heavy metals in water from haihe river, china
Pollution status, source, and health risk of heavy metals in water from haihe river, china
Author : Shitao Peng
Abstract Five heavy metals (As, Cr, Cu, Hg, and Pb) were determined in the water from the
Haihe River in China between 2001 and 2010. The temporal variations in five metals
concentrations generally decreased from 2001 to 2010. Results of principal component analysis
(PCA) showed that Cr6+and Pb were derived from rock-derived and industrial wastewater, while
As, Hg, and Cu was atmospheric deposition and industrial sewage originated. The health risks
caused by metals in water were assessed by model recommended by the US Environmental
Protection Agency. The health risk showed both the non-carcinogenic and carcinogenic risks were
decreased from 2000 to 2010. However, the non-carcinogenic risk exceeded 1 and carcinogenic
risk were more than 110-5 in each years, indicating that there were non-carcinogenic and
carcinogenic risks in water from Haihe River. Arsenic was the most important contributor to both
non-carcinogenic and carcinogenic risks in the present study. In particular, both Cr6+ and As all
18 exhibited a carcinogenic risk above the acceptable or tolerable risk level in each years, indicating
that long term exposure to such water can lead to cancer. Therefore, it is very important to control
coal combustion and industrial sewage discharge for removing Cr6+ and As in the water to
minimize risks.
File Size : 292,506 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Hydro-environment
Date Published : 28/08/2015
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