农村岩水层中的酸盐来源和迁移:中国北方平岩水域的案例研究
Chen Sheng1,2, Di Wu1,2, Dalu Yu1,2
1Shandong Provincial Bureau of Geology & Mineral Resource, Institute of Hydrogeology and Engineering Geology, Jinan, People's Republic of China.
Isotopes in environmental and health studies
|July 3, 2025
概括
酸盐污染威胁到农村的地下水,80%的样本超过安全限值. 未经处理的废水和便是主要来源,需要针对性的污染控制战略,以可持续地利用地下水.
科学领域:
- 环境科学 环境科学
- 水文地质学 水文地质学
- 地质化学 地质化学
背景情况:
- 由于人口增长和密集农业,地下水环境面临着日益严重的酸盐污染.
- 地地下水系统特别容易受到污染,影响农村地区的饮用水质量.
研究的目的:
- 研究农村地地下水中酸盐污染的来源和转化过程.
- 评估各种来源对平岩流域酸盐污染的贡献.
主要方法:
- 使用了稳定同位素分析 (δ15N-NO3, δ18O-NO3, δ2H-H2O, δ18O-H2O) 和水化学数据.
- 分析了地地下水,孔地地下水和黄河水.
- 采用MixSIAR模型进行来源分配.
主要成果:
- 在地地下水中的酸盐度经常超过世卫组织的安全限值 (80%的样本>50 mg/L).
- 流星降雨是地下水的主要充电来源;人类活动是主要的酸盐来源.
- 人类和牲畜未经处理的废水对酸盐污染有很大贡献,其中化是主要的过程.
结论:
- 肥料和污水 (49.92%) 是酸盐污染的最大贡献者,其次是土壤酸盐 (39.43%).
- 有效的环境保护战略对于控制酸盐污染和确保可持续的地地下水管理至关重要.
- 这些发现为在类似的乡村岩环境中控制污染提供了参考.
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