Evaluation of groundwater quality and its suitability for drinking purposes in semi-arid region of Southern India: an application of GIS

地下水 氟化物 碳酸氢盐 干旱 优势(遗传学) 氯化物 总溶解固体 环境科学 环境化学 水文学(农业) 环境工程 化学 地质学 无机化学 古生物学 岩土工程 生物化学 有机化学 基因
作者
Narsimha Adimalla,Ravi Manne,Yunhui Zhang,Panpan Xu,Hui Qian
出处
期刊:Geocarto International [Taylor & Francis]
卷期号:37 (25): 10843-10854 被引量:35
标识
DOI:10.1080/10106049.2022.2040603
摘要

In the present study, the quality of groundwater for drinking purposes was evaluated. The following parameters were analyzed using American Public Health Association standard method: pH, total hardness (TH), total dissolved solids (TDS), electrical conductivity (EC), bicarbonate (HCO3−), chloride (Cl−), sulphate (SO42−), fluoride (F−), calcium (Ca2+), magnesium (Mg2+), sodium (Na+) and potassium (K+). These values were compared with limits recommended by the World Health Organization (WHO) and the Bureau of Indian Standards (BIS) for drinking purposes. The cation and anion dominance of the study region groundwater samples were Na+ > Ca2+ > Mg2+ > K+ and HCO3− > Cl− > SO42− > F−, respectively. Bicarbonate was the dominant anion and Na+ was identified as the dominant cation in the groundwater of the study region. The Na+ and Cl− concentration of 43% and 37% of groundwater samples were found to be more than the acceptable limit of WHO in the study region. Most of the groundwater samples in the study region were categorized as a very hard category. The groundwater was highly affected by the fluoride and about 60% of groundwater samples were unfit for drinking purposes in the study region.
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