Rajmohan N, Elango L, Ramachandran S, Natarajan M
Institute of Ocean Management, Anna University, Chennai 25.
Indian J Environ Health. 2003 Jan;45(1):5-10.
Groundwater samples were collected from both dugwells and borewells in an intensively irrigated area of Kancheepuram Taluk, Tamil Nadu. pH, EC and TDS of groundwater samples were measured in the site. The collected samples were analysed in the laboratory for Ca, Mg, Na, K, Cl, HCO3, CO3, SO4, NO3, P-PO4 and Si-SiO2. The results are used for inter elemental correlation analysis which indicates that most of the elements having good correlation. Piper Trilinear diagram is used to find out the hydrochemical type of groundwater which shows that most of them are CaHCO3 and the remaining are CaMgCl type. Hydrochemical characteristics of groundwater indicate that silicate weathering reaction is a probable source for high concentration of major ions.
在泰米尔纳德邦坎契普拉姆县集约灌溉区的浅井和深井中采集了地下水样本。在现场测量了地下水样本的pH值、电导率（EC）和总溶解固体（TDS）。采集的样本在实验室分析了钙（Ca）、镁（Mg）、钠（Na）、钾（K）、氯（Cl）、碳酸氢根（HCO₃）、碳酸根（CO₃）、硫酸根（SO₄）、硝酸根（NO₃）、磷酸根（P-PO₄）和硅酸根（Si-SiO₂）。结果用于元素间相关性分析，结果表明大多数元素具有良好的相关性。使用派珀三线图来确定地下水的水化学类型，结果表明大多数为碳酸氢钙型，其余为氯化钙镁型。地下水的水化学特征表明，硅酸盐风化反应可能是主要离子高浓度的来源。
