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- W186616351 abstract "Most parts of India are facing anthropogenic groundwater pollution. Such types of pollution are mainly enrichments of various chemical parameters such as nitrate, hardness, metallic trace elements and micr obiological organisms. The overexploitation of groundwater in some parts of the country induces waterquality degradation. Untreated industrial effluents discharged on the surface cause severe groundwater pollution in the industrial belt of the country. This poses a problem of supply of hazard-free drinking water in the rural parts of the country. More than 50% of the tanneries in the country exist in Tamil Nadu. There are about 80 tanneries operating in and around Dindigul town in upper Kodaganar river basin, Tamil Nadu. The untreated effluents from these tanneries have consi derably affected the quality of groundwater in this area. In order to assess the extent of groundwater deterior ation, detailed analysis for groundwater quality has been carried out. The dissolved chemical constituents in groundwater and their concentration have been studied. The correlation matrix has been established and studied between chemical parameters. A good correlation has been observed between EC and Cl, as also EC and Na. Progressive reduction in correlation coefficients for Mg 2+ , (Na + + K + ), Ca 2+ and SO4 2+ is observed as 0.91, 0.87, 0.86 and 0.56 respectively. It is found that the quality of groundwater in this area has deteriorated mainly due to extensive use of chemicals (NaCl) in the leather i ndustries. THE study area is located in the southern part of India, close to Kodaganar river basin, mainly in hard rock te rrain. The area is known for its leather industries 1 , some of them have been established as early as 1939. Since then tanne ries are spreading and at present more than 80 are well e stablished. Most of these are located in the central part of Dindigul town and along Madurai, Vattalagundu and Ponmandurai roads. During the past few decades, the groun dwater is b eing contaminated giving rise to health problems and epidemics. In fact, processing of leather requires a large amount of freshwater along with various chemicals. Every 10 kg of raw skin tanned requires about 350 l of freshwater. Water sources are minimal at Dindigul town. The water-table is deep due to overexploitat ion for i rrigation and tanning through dug wells, dug-cum-bore wells and bore wells 2–4" @default.
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- W186616351 date "2005-01-01" @default.
- W186616351 modified "2023-09-23" @default.
- W186616351 title "Impact of pollution due to tanneries on groundwater regime" @default.
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