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题名: Occurrence and distribution of organophosphate triesters and diesters in sludge from sewage treatment plants of Beijing, China
作者: Gao, Lihong; Shi, Yali; Li, Wenhui; Liu, Jiemin; Cai, Yaqi
刊名: SCIENCE OF THE TOTAL ENVIRONMENT
出版日期: 2016-02-15
卷号: 544, 期号:0, 页码:143-149
关键词: Organophosphate triesters and diesters ; Sludge ; Occurrence ; Distribution ; Risk assessment
DOI: 10.1016/j.scitotenv.2015.11.094
部门归属: 环境化学与生态毒理学国家重点实验室
英文摘要: The occurrence and distribution of 14 organophosphate (OP) triesters and 5 diesters were investigated in sludge from eight sewage treatment plants (STPs) in Beijing, China, during 2008-2014. Tri(2-ethylhexyl) phosphate (TEHP) and tri-m-cresyl phosphate (TCrP) were the predominant triesters with the average concentration of 233-137 mu g/kg, respectively. Also, the polar and hydrophilic trimethyl phosphate (TMP) and triethyl phosphate (TEP) were detected in 19% and 74% of sludge samples, respectively. Three of five diesters were detected in sludge samples, and di(2-ethylhexyl) phosphate (DEHP) revealed the highest average concentration of 96.0 mu g/kg, followed by diphenyl phosphate (DPhP, 18.0 mu g/kg). The levels of OP triesters in sludge varied with the compositions of the sewage and treatment capacity of STPs, as well as the adjacent sources. In comparison with that in the former years, relatively higher concentration of total OP triesters in sludge was observed in 2014, which is consistent with the rapid growth in consumption of these chemicals in China. Finally, environmental risk assessment indicated potential harmful effects of OP triesters on soil microorganisms after sludge landfill or fertilization. (C) 2015 Elsevier B.V. All rights reserved.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/35907
Appears in Collections:环境化学与生态毒理学国家重点实验室_期刊论文

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