Assessment of Ground Water Quality in Thanajvur town and Adjacent areas, Thanjavur District, Tamilnadu _ India (Post-monsoon Season)

摘要

Groundwater constitutes about 30% of the world's total fresh water. Main source for domestic, agriculture and other activities mostly rely upon groundwater in Thanjavur town and the surrounding areas because the surface water is very minimize and the river water also available six month's only during the monsoon season. Groundwater quality in and around Thanjavur town especially adjacent to the small scale industries were analyzed. About 40 groundwater samples were collected and analyzed mostly from bore wells and few samples from dug wells in the year 2011 between February and March (ie.. post monsoon season). The parameters such as Ph, Ec, TDS, TH, HCo3, caco3, Na+, cl2+, so.2., No., k., Ca2., Mg2., Cl.,So.2.Fe, fluoride and Turbidity were analyzed. NaCaMgCl and NaCaMgHco3 are major water types in the study area. Domestic activities, effluents from small scale industries especially from rice mill, wastages from fish and vegetable markets and the dumping of solid waste are the major sources causing pollution in thanjavur and the surrounding areas. Samples were analyzed with CHEEPO and WHO standards. The groundwater quality in the study site impaired by mainly due to TDS,TH