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Liu X, Shi J, Bo T, Meng Y, Zhan X, Zhang M, Zhang Y. Distributions and ecological risk assessment of estrogens and bisphenol A in an arid and semiarid area in northwest China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:7216-7225. [PMID: 28101707 DOI: 10.1007/s11356-017-8434-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 01/09/2017] [Indexed: 06/06/2023]
Abstract
Free estrogens (estrone, E1; 17β-estradiol, 17β-E2; estriol, E3; and 17α-ethinylestradiol, EE2), their corresponding sulfate and glucuronide conjugates, and bisphenol A (BPA) were investigated in water and sediments in the Fen River catchment, an arid and semiarid area in northwest China. E1 and BPA were frequently detected in the wet and dry sampling seasons. In addition to the sulfate conjugates, other conjugated estrogens were not detected in water and sediments. The concentrations of these compounds in water generally increased from upstream to downstream. The concentrations in water samples of most sites were higher in the wet season than those in the dry season, but concentrations in sediments of most sites were higher in the dry season than those in the wet season. The distributions of these compounds in sediments were positively correlated with the total organic carbon (TOC) contents of sediments (0.3 < R 2 < 0.6, p < 0.01) and concentrations in water (0.25 < R 2 < 0.50, p < 0.01). In this catchment, E1 was the main contributor to endocrine disrupting risk. The surface water in most of the tributaries and the sewage in the drainage channels were at risk. The pore waters of sediments were at risk at most sampling sites.
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Affiliation(s)
- Xiaowei Liu
- Hefei University of Technology (Xuancheng Campus), Xuancheng, Anhui, 242000, China
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China
| | - Jianghong Shi
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China.
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China.
| | - Ting Bo
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China
| | - Yaobin Meng
- Key Laboratory of Environmental Change and Natural Disaster (Ministry of Education), Beijing Normal University, Beijing, 100875, China
| | - Xinmin Zhan
- Civil Engineering, College of Engineering and Informatics, National University of Ireland, Galway, Ireland
| | - Mengtao Zhang
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Yang Zhang
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
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Liu D, Wu SM, Zhang Q, Guo M, Cheng J, Zhang SH, Yao C, Chen JQ. Occurrence, spatial distribution, and ecological risks of typical hydroxylated polybrominated diphenyl ethers in surface sediments from a large freshwater lake of China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:5773-5780. [PMID: 28050763 DOI: 10.1007/s11356-016-8341-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 12/25/2016] [Indexed: 06/06/2023]
Abstract
Hydroxylated polybrominated diphenyl ethers (OH-PBDEs) have been frequently observed in marine aquatic environments; however, little information is available on the occurrence of these compounds in freshwater aquatic environments, including freshwater lakes. In this study, we investigated the occurrence and spatial distribution of typical OH-PBDEs, including 2'-OH-BDE-68, 3-OH-BDE-47, 5-OH-BDE-47, and 6-OH-BDE-47 in surface sediments of Taihu Lake. 3-OH-BDE-47 was the predominant congener, followed by 5-OH-BDE-47, 2'-OH-BDE-68, and 6-OH-BDE-47. Distributions of these compounds are drastically different between sampling site which may be a result of differences in nearby point sources, such as the discharge of industrial wastewater and e-waste leachate. The positive correlation between ∑OH-PBDEs and total organic carbon (TOC) was moderate (r = 0.485, p < 0.05), and site S3 and S15 were excluded due to point source pollution, suggesting that OH-PBDEs concentrations were controlled by sediment TOC content, as well as other factors. The pairwise correlations between the concentrations of these compounds suggest that these compounds may have similar input sources and environmental behavior. The target compounds in the sediments of Lake Taihu pose low risks to aquatic organisms. Results show that OH-PBDEs in Lake Taihu are largely dependent on pollution sources. Because of bioaccumulation and subsequent harmful effects on aquatic organisms, the concentrations of OH-PBDEs in freshwater ecosystems are of environmental concern.
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Affiliation(s)
- Dan Liu
- College of Chemistry and Molecular Engineering, Nanjing Tech University, No. 30 Puzhu Road(s), Nanjing, 211816, China
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, No. 8 Jiangwangmiao Street, Nanjing, 210042, China
| | - Sheng-Min Wu
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, No. 8 Jiangwangmiao Street, Nanjing, 210042, China
| | - Qin Zhang
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, No. 8 Jiangwangmiao Street, Nanjing, 210042, China
| | - Min Guo
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, No. 8 Jiangwangmiao Street, Nanjing, 210042, China
| | - Jie Cheng
- Second Institute of Oceanography, State Oceanic Administration, Hangzhou, 310013, China
| | - Sheng-Hu Zhang
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, No. 8 Jiangwangmiao Street, Nanjing, 210042, China.
| | - Cheng Yao
- College of Chemistry and Molecular Engineering, Nanjing Tech University, No. 30 Puzhu Road(s), Nanjing, 211816, China.
| | - Jian-Qiu Chen
- Department of Environmental Science, China Pharmaceutical University, Nanjing, 211198, China.
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