Study on influence of urban environment on groundwater quality

Abstract

Growth of human population increases day by day and all resources newlinemainly fresh water is insufficient to meet the domestic, irrigation and industrial newlinedemands. Groundwater plays an important role in day to day life to meet the newlinedomestic demands, irrigation demands and to some extent micro industrial newlinedemands too. These groundwater sources are exploited and polluted due to the newlinedisposal of municipal wastes. Tirunelveli municipal wastes are disposed at newlineRamayanpatti located on the outskirts of Tirunelveli district, Tamil Nadu, India. newlineTirunelveli practices even agriculture in the heart of the city. The city is having newlinea mixed land use comprises of residential, cottage industries and agriculture. newlineThe source of water to the city is Thamirabarani, a perennial river. newlineTirunelveli city receives most of the average annual rainfall during newlinenortheast monsoon and is highly reliable for planning and management of newlinefreshwater resources. LULC analysis shows that the residential area is on the newlineincreasing trend and agricultural practices are on the decreasing trend. LULC newlineanalysis shows that the residential area is on the increasing trend, while shrubs newlineand the agricultural areas are on the decreasing trend. The rainfall SPI and DI newlineindices show two different patterns since 1971. The change in pattern is noticed newlinebefore and after 2000. newline