Occurrences of nitrosamines in chlorinated and chloraminated drinking water in three representative cities, China
文献类型：期刊论文
| 作者 | Wang, Donghong
|
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2012 |
| 卷号 | 437页码:219－225 |
| 关键词 | Nitrosamines Disinfection by-products Disinfecting drinking waters Disinfection methods UPLC-MS/MS Health risk |
| ISSN号 | 0048-9697 |
| 中文摘要 | An investigation of the occurrence of nine nitrosamines in drinking water following different water treatment processes was conducted using samples from seven drinking water treatment plants in three cities and tap waters in one city in China. The total nitrosamine levels ranged from not detected (n.d.) to 43.45 ng/L The species and concentrations of the nine nitrosamines varied with disinfection methods and source waters. N-nitrosodimethylamine (NDMA), which is the nitrosamines of greatest concern, was identified in raw water, disinfecting water, finished water and tap water samples, ranging from 0.8 to 21.6, 0.12 to 24.2. n.d. to 8.8, and n.d. to 133 ng/L, respectively. Chloramination alone produced the most significant amounts of NDMA. while ozonation followed by chloramination led to moderately reduced levels. Additionally. chlorination produced relatively less NDMA, while low pressure ultraviolet radiation followed by chlorination could also significantly reduce them. Total organic carbon is one of the most important factors influencing nitrosamines formation in disinfecting water. In contrast, the addition of chlorine following any other disinfection was found to increase the formation of the other eight species of nitrosamines. The three nitrosamines recommended for monitoring by the US EPA were detected in the tap water samples, but most were present at levels below those that pose a risk to human health. Nevertheless, the occurrence and concentration of nitrosamines regulated in the Drinking Water Contaminant Candidate List could cause some potential human effects and therefore warrant attention. (C) 2012 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000310941000026 |
| 公开日期 | 2014-11-04 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7798]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Donghong. Occurrences of nitrosamines in chlorinated and chloraminated drinking water in three representative cities, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2012,437:219－225. |
| APA | Wang, Donghong.(2012).Occurrences of nitrosamines in chlorinated and chloraminated drinking water in three representative cities, China.SCIENCE OF THE TOTAL ENVIRONMENT,437,219－225. |
| MLA | Wang, Donghong."Occurrences of nitrosamines in chlorinated and chloraminated drinking water in three representative cities, China".SCIENCE OF THE TOTAL ENVIRONMENT 437(2012):219－225. |
入库方式： OAI收割
来源：生态环境研究中心
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