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- W4313592213 endingPage "727" @default.
- W4313592213 startingPage "701" @default.
- W4313592213 abstract "In this study, the hydrochemical characteristics of groundwater were assessed based on 64 shallow groundwater samples collected in the Guanzhong Basin, China, and the health risk of nitrate (NO3-) in drinking water was assessed. In addition, the spatial distributions of major water quality indicators were investigated, while bivariate plots, saturation index, and stable isotopes were used to reveal the processes controlling groundwater hydrogeochemistry. The results showed that groundwater in the study area was mostly fresh water. However, the maximum and average NO3– concentrations were 397.0 and 92.9 mg/L, respectively, indicating serious groundwater NO3– pollution. The percolation of contaminated river water exhibited considerable impacts on groundwater quality. Carbonate dissolution was the major process controlling the hydrochemical characteristics of groundwater, while human activities were responsible for the high concentrations of groundwater pollutants, especially NO3–. Evaporation fraction of groundwater in the study area revealed by stable hydrogen and oxygen isotopes ranged from 4 to 13% and 4 to 11%, respectively. High non-carcinogenic health risks of NO3– to adults and children were observed in about 46.88 and 75% of the collected groundwater samples, respectively. The risk value ranges were 0-6.00 and 0-14.06, with average values of 1.36 and 3.19, for adults and children, respectively." @default.
- W4313592213 created "2023-01-06" @default.
- W4313592213 creator A5013530451 @default.
- W4313592213 creator A5014081453 @default.
- W4313592213 creator A5028462736 @default.
- W4313592213 creator A5048806286 @default.
- W4313592213 creator A5060842906 @default.
- W4313592213 creator A5091440349 @default.
- W4313592213 date "2023-01-04" @default.
- W4313592213 modified "2023-10-16" @default.
- W4313592213 title "Major ion hydrogeochemistry and health risk of groundwater nitrate in selected rural areas of the Guanzhong Basin, China" @default.
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