Distribution and Potential Sources of OCPs and PAHs in Waters from the Danshui River Basin in Yichang, China

Wei Chen, Bo Peng, Huanfang Huang, Ye Kuang, Zhe Qian, Wenting Zhu, Wei Liu, Yuan Zhang, Yuan Liao, Xiufang Zhao, Hong Zhou and Shihua Qi
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Wei Chen: State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430078, China
Bo Peng: State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430078, China
Huanfang Huang: South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510535, China
Ye Kuang: Institute of Geological Survey, China University of Geosciences, Wuhan 430074, China
Zhe Qian: State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430078, China
Wenting Zhu: Institute of Geological Survey, China University of Geosciences, Wuhan 430074, China
Wei Liu: Hubei Key Laboratory of Environmental Water Science in the Yangtze River Basin, China University of Geosciences, Wuhan 430078, China
Yuan Zhang: State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430078, China
Yuan Liao: Geological Environmental Centre of Hubei Province, Wuhan 430034, China
Xiufang Zhao: 7th Institute of Geology & Mineral Exploration of Shandong Province, Linyi 276000, China
Hong Zhou: Institute of Geological Survey, China University of Geosciences, Wuhan 430074, China
Shihua Qi: State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430078, China

IJERPH, 2021, vol. 19, issue 1, 1-14

Abstract: To investigate the concentrations, spatial distribution, potential sources and mass fluxes of organochlorine pesticides (OCPs) and polycyclic aromatic hydrocarbons (PAHs) in waters from the Danshui River Basin, a total of 20 water samples were collected and analyzed from a karstic river in Western Hubei of Central China. The average concentrations of total OCPs and PAHs in the river water were 4719 pg·L −1 and 26.2 ng·L −1 , respectively. The characteristic ratios of different isomers and the composition analysis of individual OCPs and PAHs revealed that HCHs originated from a mixed input of technical HCHs and Lindane, DDTs were mainly from technical DDTs, and PAHs mainly originated from biomass and coal combustion. The mass flux analysis showed that PAHs had a higher emission and heavier burden than OCPs in the Danshui River Basin. OCPs and PAHs emitted from agricultural or other human activities could enter the groundwater and then be transported to the surface/river water in the karst area. The adsorption of OCPs and PAHs by particles and the sedimentation of particles could be the primary processes to intercept these pollutants in the water of the karstic river system.

Keywords: groundwater; spring water; karstic river; distribution; mass flux (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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