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	Risk assessment on disinfection by-products of drinking water of different water sources and disinfection processes
	Wang W. Y. ; Ye B. X. ; Yang L. S. ; Li Y. H. ; Wang Y. H.
	2007
关键词	multi-pathway risk assessment disinfection by-products exposure
英文摘要	The occurrences of trihalomethanes (THMs) and haloacetics (HAAs) in the water supply in Beijing and Canada were investigated. The concentrations of THMs and HAAs in Beijing and Canada were below the maximum contaminant levels specified by the USEPA and WHO standards. The multi-pathway risk assessment (assessed through oral ingestion, dermal absorption and inhalation exposure to drinking water) was used to assess the cancer risk and the hazard index of THMs and HAAs from fifteen waterworks in Beijing, China and three treatment plants using different disinfection processes in Canada. Residents in Beijing and residents who were served by three treatment plants using different disinfection processes in Canada had a higher risk of cancer through oral ingestion than through the other two pathways. The cancer risk resulted from disinfection by-products (DBPs) was 2.76E-05(for males), 3.05E-05(for females) in Beijing, China, while it was 4.33E-05, 4.78E-05 in Canada. The risk was higher when water treatment plants used surface water source than when they used ground water source and mixture water source in Beijing. The risk showed different changes in three treatment plants using different disinfection processes in Canada. The lifetime cancer risk for THMs followed the order: Plant 2 > Plant 1 > Plant 3. And, the lifetime cancer risk for HAAs was: Plant 1 > Plant 2 > Plant 3. (c) 2006 Elsevier Ltd. All rights reserved.
出处	Environment International
卷	33
期	2
页	219-225
收录类别	SCI
语种	英语
ISSN号	0160-4120
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/22849]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Wang W. Y.,Ye B. X.,Yang L. S.,et al. Risk assessment on disinfection by-products of drinking water of different water sources and disinfection processes. 2007.

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