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- W4205827960 abstract "Abstract Located in semi-arid regions of Hulun Buir League in China Inner Mongolia Autonomous Region, Hailar Basin is a region with less precipitation, where groundwater is the most important source for water supply. It is very important to study groundwater characteristics and hydrogeochemical processes for better management of the groundwater resource.The current status of fluorine (F), arsenic (As), and uranium (U) co-contamination exists in groundwater of the Hailar Basin, China. To understand the concentration mechanism of F, As, and U in groundwater in the study area, groundwater samples were collected for detection and analysis. The results showed that the main hydrochemical types were Cl-Na, HCO 3 -Na, and HCO 3 -Ca in the study area. The average values of F, As, and U were 3.94 mg/L, 0.04 mg/L, and 0.07 mg/L, respectively, which all exceeded the World Health Organization(WHO) guidelines. Through the Gibbs diagram and the end member diagram, it can be seen that the groundwater in the study area is mainly affected by the hydrogeochemical effects of evaporative crystallization, rock weathering mechanism, and the dissolution of silicate rock and evaporative salt rock minerals. Mineral dissolution, cation exchange, and weakly alkaline environment are important factors affecting F concentration; Low NO 3 ˉ and SO 4 2- will cause a reducing environment and the competitive adsorption of HCO 3 ˉ will promote As pollution; The concentration of Ca 2+ ,Mg 2+ , SO 4 2- ,and NO 3 ˉ have a great influence on the concentration of U." @default.
- W4205827960 created "2022-01-25" @default.
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- W4205827960 date "2022-01-11" @default.
- W4205827960 modified "2023-10-14" @default.
- W4205827960 title "Concentration Mechanism of Fluorine, Arsenic, and Uranium in Groundwater of the Hailar Basin, China" @default.
- W4205827960 doi "https://doi.org/10.21203/rs.3.rs-1072765/v1" @default.
- W4205827960 hasPublicationYear "2022" @default.
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