Identification of unknown disinfection byproducts in drinking water produced from Taihu Lake source water
文献类型：期刊论文
| 作者 | Li, Jiabao; Zhang, Haifeng ; Wang, Juan; Yu, Zhiyong; Li, Hongyan; Yang, Min
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| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2022-03 |
| 卷号 | 113期号:0页码:1-11 |
| 关键词 | DISSOLVED ORGANIC-MATTER ECOLOGICAL RISK-ASSESSMENT POLYHALOGENATED CARBAZOLES DEVELOPMENTAL TOXICITY BROMATE REDUCTION HALOGENATED DBPS CHLORINATION GENOTOXICITY BROMIDE CHLORAMINATION |
| ISSN号 | 1001-0742 |
| 英文摘要 | Although disinfection byproducts (DBPs) in drinking water have been suggested as a cancer causing factor, the causative compounds have not yet been clarified. In this study, we used liquid chromatography quadrupole-time-of-flight spectrometry (LC-QTOF MS) to identify the unknown disinfection byproducts (DBPs) in drinking water produced from Taihu Lake source water, which is known as a convergence point for the anthropogenic pollutants discharged from intensive industrial activities in the surrounding regions. In total, 91 formulas of DBPs were discovered through LC-QTOF MS nontarget screen, 81 of which have not yet been reported. Among the 91 molecules, 56 only contain bromine, 15 only contain chlorine and 20 DBPs have both bromine and chlorine atoms. Finally, five DBPs including 2,4,6-tribromophenol, 2,6-dibromo-4-chlorophenol, 2,6-dichloro-4-bromophenol, 4-bromo2,6-di-tert-butylphenol and 3,6-dibromocarbazole were confirmed using standards. The former three compounds mainly formed in the predisinfection step (maximum concentration, 0.2-2.6 pg/L), while the latter two formed in the disinfection step (maximum concentration, 18.2-33.6 ng/L). In addition, 19 possible precursors of the discovered DBPs were detected, with the aromatic compounds being a major group. 2,6-di-tert-butylphenol as the precursor of 4-bromo-2,6-di-tert-butylphenol was confirmed with standard, with a concentration of 20.3 pg/L in raw water. The results of this study show that brominated DBPs which are possibly formed from industrial pollutants are relevant DBP species in drinking water produced form Taihu source water, suggesting protection of Taihu Lake source water is important to control the DBP risks. (c) 2021 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47859]  |
| 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 |
| 通讯作者 | Yang, Min |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jiabao,Zhang, Haifeng,Wang, Juan,et al. Identification of unknown disinfection byproducts in drinking water produced from Taihu Lake source water[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2022,113(0):1-11. |
| APA | Li, Jiabao,Zhang, Haifeng,Wang, Juan,Yu, Zhiyong,Li, Hongyan,&Yang, Min.(2022).Identification of unknown disinfection byproducts in drinking water produced from Taihu Lake source water.JOURNAL OF ENVIRONMENTAL SCIENCES,113(0),1-11. |
| MLA | Li, Jiabao,et al."Identification of unknown disinfection byproducts in drinking water produced from Taihu Lake source water".JOURNAL OF ENVIRONMENTAL SCIENCES 113.0(2022):1-11. |
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来源：生态环境研究中心
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