| Title: | "Distribution, source identification, and health risk of emerging organic contaminants in groundwater of Xiong'an New Area, Northern China" |
| Author(s): | An R; Li B; Zhong S; Peng G; Li J; Ma R; Chen Q; Ni J; |
| Address: | "Department of Environmental Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, PR China. Department of Environmental Engineering, Peking University, Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, PR China. Electronic address: see-libin@pku.edu.cn. Fujian Agriculture and Forestry University, College of Resources and Environment, Fujian Provincial Key Laboratory of Soil Environment Health and Regulation, Fuzhou 350002, PR China. General Institute of Water Resources and Hydropower Planning and Design, Ministry of Water Resources, Beijing 100120, PR China" |
| DOI: | 10.1016/j.scitotenv.2023.164786 |
| ISSN/ISBN: | 1879-1026 (Electronic) 0048-9697 (Linking) |
| Abstract: | "Groundwater contamination in China has been greatly concerned due to dramatically increasing fresh water demand accompanied by economic development. However, little is known about aquifer vulnerability to hazardous matters especially in previously contaminated site of rapidly urbanizing cities. Here, we collected 90 groundwater samples from Xiong'an New Area during wet and dry seasons of 2019 and characterized the composition and distribution of emerging organic contaminants (EOCs) in this strategically developing city. A total of 89 EOCs, assigned to organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and volatile organic compounds (VOCs), were detected with the frequencies ranging from 1.11 %-85.6 %. Methyl tert-butyl ether (16.3 mug/L), Epoxid A (6.15 mug/L), and alpha-Lindane (5.15 mug/L) could be identified as major contributors to groundwater organic pollution. Significant aggregation of groundwater EOCs along Tang River were found due to historical residue and accumulation from wastewater storage there before 2017. Significant seasonal variations (p < 0.05) in the types and concentrations of EOCs could be attributed to discrepant pollution sources between varying seasons. Human health effects from exposure to groundwater EOCs were further evaluated with negligible risk (<10(-4)) in most samples (97.8 %) and notable risk (10(-6)-10(-4)) in several monitored wells (2.20 %) located along Tanghe Sewage Reservoir. This study provides new evidences for aquifer vulnerability to hazardous matters in historically contaminated sites and is of significant to groundwater pollution controlling and drinking water safety for rapidly urbanizing cities" |
| Keywords: | "Humans Environmental Monitoring *Pesticides/analysis *Hydrocarbons, Chlorinated/analysis *Groundwater/chemistry China *Water Pollutants, Chemical/analysis Groundwater Health risk Organochlorine pesticides Polychlorinated biphenyls Source identification Vo;" |
| Notes: | "MedlineAn, Rui Li, Bin Zhong, Sining Peng, Guyu Li, Jie Ma, Ruoqi Chen, Qian Ni, Jinren eng Netherlands 2023/06/15 Sci Total Environ. 2023 Oct 1; 893:164786. doi: 10.1016/j.scitotenv.2023.164786. Epub 2023 Jun 13" |
