Hydrochemical evolution and formation mechanism of groundwater affected by human activities in Zhangxuan basin, northwest of Yanshan mountains, China.

PLoS One · 2025 · PMC11825023 · PMID 39946374

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a decreasing trendno p-value reported

Between 2016 and 2022, a decreasing trend was observed for the concentrations of Ca 2+ and Na + , while the concentration of Mg 2+ remained relatively stable ( Fig 3 ).

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