期刊名称：Research Journal of Environmental and Earth Sciences
印刷版ISSN：2041-0484
电子版ISSN：2041-0492
出版年度：2009
卷号：1
期号：2
页码：22-33
出版社：Maxwell Science Publications
摘要：The Salem district, located in semi arid southeast India, is an important industrial and agricultural center. In recent years rapid development has created an increase in demand for groundwater. Detailed knowledge of water quality gives a brief insight on the hydrochemical system, promotiong sustainable development and effective management of groundwater resources. A hydrogeochemical investigation was conducted in the Salem district by collecting a total of 108 groundwater samples for Pre and Post monsoon seasons. The study reveal that pH in the area is neutral to alkaline ranging from 6.6 to 8.6 with an average of 8.0. The electrical conductivity and total dissolved solids (TDS) values was noted higher during both the seasons. The abundance of major ions in the groundwater is in the order of Na > Ca > Mg > K=Cl>HCO3>SO4>NO3. Hydrochemical facies demarcated was Ca-Mg-Cl, Na-Cl, Ca-HCO3, Ca-Na-HCO3 and Ca-Cl type. NO3, Cl, SO4 and F exceed the permissible limit during both the seasons. The quality of groundwater has been assessed by using SAR, Permeability Index and RSC values along with Wilcox and USSL diagrams. As per the classification of water for domestic and irrigation purposes, the influence of anthropogenic activities such as intense agricultural practices like application of fertilizers, irrigation practice, urban and industrial waste discharge influence the quality of groundwater in the study area.
关键词：Salem ; hydrogeochemical facies ; sodium adsorption ratio ; Residual sodium carbonate ; spatial distribution ;
