Occurrence and profiling of multiple nitrosamines in source water and drinking water of China
文献类型：期刊论文
| 作者 | An, Wei; Wang, Wanfeng; Yang, Min; Yu, Jianwei |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2016-05-01 |
| 卷号 | 551期号:0页码:489-495 |
| 关键词 | Nitrosamines Drinking Water Chlorination Chloramination Formation Potential Cancer Risk |
| DOI | 10.1016/j.scitotenv.2016.01.175 |
| 英文摘要 | The occurrence of multiple nitrosamines was investigated in 54 drinking water treatment plants (n-DWTPs) from 30 cities across major watersheds of China, and the formation potential (n-FP) and cancer risk of the dominant nitrosamines were studied for profiling purposes. The results showed that N-nitrosodimethylamine (n-NDMA), N-nitrosodiethylamine (n-NDEA) and N-nitrosodi-n-butylamine (n-NDBA) were the most abundant in DWTPs, and the concentrations in source water and finished water samples were not detected (n-ND) -53.6 ng/L (n-NDMA), ND -68.5 ng/L (n-NDEA), ND -48.2 ng/L (n-NDBA). The frequencies of detection in source waters were 64.8%, 61.1% and 51.8%, and 57.4%, 53.7%, and 37% for finished waters, respectively. Further study indicated that the FPs of the three main nitrosamines during chloramination were higher than those during chlorination and in drinking water. The results of Principal Components Analysis (n-PCA) showed that ammonia was themost closely associated factor in nitrosamine formation in the investigated source water; however, there was no significant correlation between nitrosamine-FPs and the values of dominant water-quality parameters. The advanced treatment units (n-i. e., ozonation and biological activated carbon) used in DWTPs were able to control the nitrosamine-FPs effectively after disinfection. The target pollutants posed median and maximum cancer risks of 2.99 x 10(-5) and 35.5 x 10(-5) to the local populations due to their occurrence in drinking water. (C) 2016 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/36201]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 推荐引用方式 GB/T 7714 | An, Wei,Wang, Wanfeng,Yang, Min,et al. Occurrence and profiling of multiple nitrosamines in source water and drinking water of China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2016,551(0):489-495. |
| APA | An, Wei,Wang, Wanfeng,Yang, Min,&Yu, Jianwei.(2016).Occurrence and profiling of multiple nitrosamines in source water and drinking water of China.SCIENCE OF THE TOTAL ENVIRONMENT,551(0),489-495. |
| MLA | An, Wei,et al."Occurrence and profiling of multiple nitrosamines in source water and drinking water of China".SCIENCE OF THE TOTAL ENVIRONMENT 551.0(2016):489-495. |
入库方式： OAI收割
来源：生态环境研究中心
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