期刊
HUMAN AND ECOLOGICAL RISK ASSESSMENT
卷 21, 期 4, 页码 863-881出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10807039.2014.890479
关键词
hazard index; arsenic; human health risk assessment; heavy metals; carcinogenic risk; contaminated sites
资金
- Knowledge Innovative Project of the Chinese Academy of Sciences [KZCX2-YW-BR-19]
- Public Wealth Research Funding from the Ministry of Environmental Protection of the People's Republic of China [201309005]
- National High Technology Research and Development Program (863 Program) [2013AA06A208]
Due to accelerated urbanization and reform of industrial structure in China, polluting industries in major cities have been closed or relocated. Consequently, large numbers of industrial sites were generated and the contaminated soils on and around these sites may pose risks to humans. This case study presents an estimation of human health risks for an area that is mainly impacted through air dispersion and deposition from a large-scale metallurgical refinery complex in Zhuzhou city, Hunan Province, China. Carcinogenic and non-carcinogenic risks posed by the contaminants were estimated under future industrial and residential land use scenarios. The result shows that adverse health effects may occur primarily through ingestion of soils contaminated with As, Cd, and Pb. The total carcinogenic risks of multiple contaminants for a large area exceed the acceptable risk level of 1 x 10(-5), and several localized hotspots, where the total hazard index exceeds 1 were identified. Soils in the Tongda site pose the highest carcinogenic risks and non-carcinogenic hazards. It is concluded that potential human health risks exist under the proposed redevelopment scenarios, and development of risk-based remediation strategies is recommended.
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