Non-Carcinogenic Baseline Risk Assessment of Heavy Metals in the Taihu Lake Basin, China

Authors: Wang, Yuankun¹; Sheng, Dong²; Wang, Dong¹; Yang, Xuchang³; Wu, Jichun¹

Source: Human and Ecological Risk Assessment, Volume 17, Number 1, January 2011 , pp. 212-218(7)

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Abstract:

The aim of this study was to investigate the contamination levels of heavy metals and to develop the baseline risk to health effects within the source areas of drinking water in Taihu Lake Basin (TLB), an area undergoing population and economic growth. Samples of water were collected from 12 representative drinking water supply areas of TLB, and were analyzed for seven heavy metals. The Hazard Indexes (HIs) for all oral exposure to the seven metals ranged from 0.03 to 0.08, which was less than the acceptable non-cancer human health hazard index of 1. As and Fe together contributed more than 98% of the overall HI, which suggests that future monitoring of water quality for these two metals should be considered.

Keywords: heavy metals; drinking water; water quality; Taihu Lake Basin; health risk

Document Type: Research article

DOI: http://dx.doi.org/10.1080/10807039.2011.538637

Affiliations: 1: State Key Laboratory of Pollution Control and Resource Reuse, Department of Hydrosciences, School of Earth Sciences and Engineering, Nanjing University, Nanjing, P. R. China 2: Hunan Water Resources and Hydropower Research Institute, Changsha, P. R. China,Bureau of Hydrology and Water Resources Monitoring, Taihu Basin Management Bureau, Wuxi, P. R. China 3: Bureau of Hydrology and Water Resources Monitoring, Taihu Basin Management Bureau, Wuxi, P. R. China

Publication date: 2011-01-01