Major hydrochemical ionic concentrations in groundwater has been analyzed during dry and wet periods (pre-monsoon and post-monsoon periods, respectively) in a semi-arid Sanganer block, Jaipur district, Rajasthan, India. The standard methods were utilized for evaluating its appropriateness for irrigation and drinking uses. Results indicate that groundwater is moderately alkaline and predominantly Ca-Na-HCO3-type. About 38.8, 33.3, 33.3 and 22.2% samples for TDS, Cl−, NO3− and F− concentrations, respectively, have exceeded the guidelines of drinking water standards in the dry period whereas in the wet period, about 44.4, 33.3, 44.4 and 16.6%, respectively. The EC, SAR, RSC, Na%, KR, and MAR parameters indicate that the majority of samples are unsuitable for irrigation. Gibbs diagram suggests that the hydrochemistry is dominatingly impacted by the evaporation mechanism. Chloro-alkaline indices adapted show that the study area mostly belong to the discharge areas. The corrosivity ratio indicates that only PVC pipes could be utilized in an area of 280 km2 for the groundwater based water supply. Further percentage of pollution index shows that groundwater is adversely impacted partially by the anthropogenic activities. But the Na++K+ vs. Cl− plot illustrates that the combined Na+−K+ contribution is from the silicate weathering.

中文翻译：

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拉贾斯坦邦斋浦尔区 Sanganer 区块半干旱区地下水适宜性水化学特征

在印度拉贾斯坦邦斋浦尔地区的半干旱 Sanganer 区块中，在干旱和湿润时期（分别为季风前和季风后时期）分析了地下水中的主要水化学离子浓度。使用标准方法评估其对灌溉和饮用用途的适宜性。结果表明地下水是中等碱性的，主要是 Ca-Na-HCO3 型。TDS、Cl-、NO3-和F-浓度分别约38.8%、33.3、33.3和22.2%的样品在干旱期超过饮用水标准，而在湿润期，分别约为44.4、33.3、44.4和44.4%。分别为 16.6%。EC、SAR、RSC、Na%、KR 和 MAR 参数表明大多数样品不适合灌溉。吉布斯图表明水化学主要受蒸发机制的影响。修改后的氯碱指数表明，研究区主要属于排放区。腐蚀性比表明，在 280 平方公里的区域内只能使用 PVC 管道进行地下水供水。污染指数的进一步百分比表明，地下水受到人为活动的部分不利影响。但是 Na++K+ 与 Cl− 的关系图表明 Na+−K+ 的贡献来自硅酸盐风化。污染指数的进一步百分比表明，地下水受到人为活动的部分不利影响。但是 Na++K+ 与 Cl− 的关系图表明 Na+−K+ 的贡献来自硅酸盐风化。污染指数的进一步百分比表明，地下水受到人为活动的部分不利影响。但是 Na++K+ 与 Cl− 的关系图表明 Na+−K+ 的贡献来自硅酸盐风化。