Occurrence and enrichment mechanisms of groundwater hexavalent chromium in typical loess area of China

Environmental Pollution, Год журнала: 2025, Номер 367, С. 125654 - 125654

Опубликована: Янв. 7, 2025

Язык: Английский

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Source Apportionment of Groundwater Nitrate Pollution in Irrigation Districts along the Jing River, Guanzhong Basin: Insights from Hydrochemistry, Isotopes, and the MixSIAR Model

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116231 - 116231

Опубликована: Март 1, 2025

Язык: Английский

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Spatial pattern of groundwater chemistry in a typical piedmont plain of Northern China driven by natural and anthropogenic forces

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Март 4, 2025

Groundwater is crucial for human society's development in piedmont plains, yet its hydrogeochemistry often exhibits complex spatial distributions due to the interplay of nature and factors. Ninety-two phreatic groundwater samples were collected from a typical plain northern China analyzed using self-organizing map combined with hydrogeochemical simulation, diagrams, entropy-weighted water quality index. categorized into four clusters, demonstrating gradual facies evolution HCO3-Ca Cl-Mg·Ca Cl-Na, along an increase NO3- content order clusters IV, II, III, I. Natural processes, including silicates weathering reverse cation-exchange, establish natural fundamental framework chemistry, which furtherly sculptured by agricultural substances input. was predominantly excellent or good, index (EWQI) values below 100 at over 92% sampling sites. relatively poorer upstream areas near mountains Hutuo River, where stratum permeability high, but improves downstream lower. Agricultural land use variation aquifer are responsible observed variations chemistry. contaminants warrant attention protection plains that long-term activities, especially mountains. This research understanding distribution chemistry provides scientific guidance related management.

Язык: Английский

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Nitrogen response and transformation processes in karst water system using bacterial indicators

Journal of Hydrology, Год журнала: 2025, Номер unknown, С. 133442 - 133442

Опубликована: Май 1, 2025

Язык: Английский

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Biogeochemical mechanisms and biomarkers of groundwater salinization in Jinghuiqu Irrigation District, China

Journal of Environmental Management, Год журнала: 2025, Номер 385, С. 125631 - 125631

Опубликована: Май 5, 2025

Язык: Английский

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