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Fate of organic micropollutants and their biological effects in a drinking water source treated by a field-scale constructed wetland
Xu, Shuhui; Zhou, Sicong; Xing, Liqun; Shi, Peng; Shi, Wei; Zhou, Qing; Pan, Yang; Song, Mao-Yong; Li, Aimin
2019-09-10
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume682Pages:756-764
AbstractThe safety of drinking water is directly related to the occurrence and concentrations of numerous organic micropollutants (OMPs) in source water. In this study, an approach integrating in vitro bioassays and chemical analyses was used to assess the purification effects of a field-scale constructed wetland on the fates of OMPs and their relevant toxicities and health risks in both summer and winter. Overall, 45 of 86 OMPs, including poly-cyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), organophosphorus pesticides (OPPs), and phthalates (PAEs), were detected in at least one of the water samples. The constructed wetland significantly decreased the concentrations of most types of OMPs, while showed negative effects on the PAEs and OPPs. Toxicological evaluation of water samples indicated that the cytotoxidty, reactive oxygen species (ROS) level and anti-androgen (Ant-AR) activity were all dramatically decreased after the constructed wetland treatment. PAEs and PAHs were the dominant contributors and accounted for 75.12-97.48% of the predicted Ant-AR potencies, while the total predicted Ant-AR potencies only contributed 3.13-15.97% of the observed Ant-AR potencies in the examined water samples, suggesting more OMPs that pose toxic effects are still undetected. The human health risk assessment demonstrated that noncarcinogenic risks of the water samples were acceptable. However, potential carcinogenic risks that were mainly induced by 2. 6-dinitrotoluene,2,4-dinitrotoluene, pentachlorophenol and PAEs cannot be ignored. This study can help to understand the role of constructed wetlands in removing OMPs and biological effects from drinking water sources. (C) 2019 Elsevier B.V. All rights reserved.
Department环境纳米技术与健康效应重点实验室
KeywordOrganic micropollutants In vitro bioassays Constructed wetland Drinking water source Health risk
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/43193
Collection环境纳米技术与健康效应重点实验室
Affiliation1.Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, 163 Xianlin Ave, Nanjing 210023, Jiangsu, Peoples R China
2.Nanjing Univ, Yancheng Acad Environm Protect Technol & Engn, Yancheng 224000, Peoples R China
3.Jiangsu Prov Acad Environm Sci, Jiangsu Prov Key Lab Environm Engn, Nanjing 210036, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Xu, Shuhui,Zhou, Sicong,Xing, Liqun,et al. Fate of organic micropollutants and their biological effects in a drinking water source treated by a field-scale constructed wetland[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,682:756-764.
APA Xu, Shuhui.,Zhou, Sicong.,Xing, Liqun.,Shi, Peng.,Shi, Wei.,...&Li, Aimin.(2019).Fate of organic micropollutants and their biological effects in a drinking water source treated by a field-scale constructed wetland.SCIENCE OF THE TOTAL ENVIRONMENT,682,756-764.
MLA Xu, Shuhui,et al."Fate of organic micropollutants and their biological effects in a drinking water source treated by a field-scale constructed wetland".SCIENCE OF THE TOTAL ENVIRONMENT 682(2019):756-764.
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