Centre for GeoTechnology, Manonmaniam Sundaranar University, Tirunelveli, 627 012, India.
Environ Monit Assess. 2009 Dec;159(1-4):341-51. doi: 10.1007/s10661-008-0633-7. Epub 2008 Dec 17.
Groundwater quality assessment study was carried out around Manimuktha river basin, Tamil Nadu, India. Twenty six bore well samples were analyzed for geochemical variations and quality of groundwater. Four major hydrochemical facies (Ca-HCO(3), Na-Cl, Mixed CaNaHCO(3), and mixed CaMgCl) were identified using a Piper trilinear diagram. Comparison of geochemical results with World Health Organization, United States Environmental Protection Agency, and Indian Standard Institution drinking water standards shows that all groundwater samples except few are suitable for drinking and irrigation purposes. The major groundwater pollutions are nitrate and phosphate ions due to sewage effluents and fertilizer applications. The study reveals that the groundwater quality changed due to anthropogenic and natural influence such as agricultural, natural weathering process.
印度泰米尔纳德邦的马尼慕塔河盆地进行了地下水质量评估研究。对 26 个钻孔水样进行了地球化学变化和地下水质量分析。利用派珀三线图确定了四种主要的水化学相（Ca-HCO3、Na-Cl、混合 CaNaHCO3 和混合 CaMgCl）。将地球化学结果与世界卫生组织、美国环境保护署和印度标准协会饮用水标准进行比较后发现，除少数水样外，所有地下水样品均适合饮用和灌溉。主要的地下水污染是由于污水排放和肥料施用导致的硝酸盐和磷酸盐离子。研究表明，由于农业、自然风化等人为和自然因素的影响，地下水质量发生了变化。
