Research on dynamic characteristics of groundwater quality based on monitoring data in China

被引：0

作者：

Yin X. ^{[1
]}

Li S. ^{[1
]}

机构：

[1] China Institute of Geo-Environment Monitoring, Beijing

来源：

Dizhi Xuebao/Acta Geologica Sinica | 2021年 / 95卷 / 05期

关键词：

Dynamic variation; Groundwater monitoring; Groundwater quality; Pollution; Typical area;

D O I：

10.19762/j.cnki.dizhixuebao.2020088

中图分类号：

学科分类号：

摘要：

Understanding the dynamic variation of groundwater quality can support the analysis of groundwater quality and regional water resources allocation. The dynamic variation of groundwater were investigated based on the groundwater monitoring data from national grade monitoring wells from 2007 to 2017, and groundwater level dynamic trends and pollutants distribution characters in typical areas. The results showed that the quality of class Ⅳ and Ⅱ were mainly part of the groundwater. The number of groundwater quality of class Ⅰ~Ⅲ was relatively small, and the proportion has mainly decreased in recent years. The number of groundwater quality of class Ⅳ and Ⅴ has increased, especially for the groundwater quality of class Ⅳ, the proportion has increased from 40.50% to 51.45%. The mainly contaminants in groundwater were pH, total hardness, total dissolved solids, sulfate, chloride, potassium permanganate index, iron, manganese, fluoride, ammonium, nitrate, and nitrite, the groundwater quality was related obviously with the groundwater level variation in typical areas. The study of the groundwater quality dynamics can provide support for scientific evaluation of groundwater resources, formulation of reasonable development and utilization plans of water resources, and prevention and control of groundwater pollution. © 2021, Science Press. All right reserved.

引用

页码：1356 / 1365

页数：9

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