当前世界环境

This study deals with assessement of Physico - Chemical Characterisations of ground water around Chalisgaon Taluka of Jalgaon district in Maharashtra. The study has been carried out to examine its suitability for drinking, irrigation and industrial purpose. Rapid urbanization which caused ground water pollution has affected the availability and quality of ground water due to its over exploitation and improper waste disposal. Groundwater pollution caused by human activities like runoff fertilizers, pesticides used in agricultural field, release of industrial waste water, percolation of surface water etc.

In the present study, attempts were made to investigate some Physico - Chemical Parameters of groundwater samples collected from seven wells at a distance of five to ten kms along north side of right Girna canal and Girna river from different locations of seven villages of Chalisgaon Taluka were studied in the span of June 2010 to Feb. 2012. The parameters pH studied includes temperature, electrical conductivity, total alkalinity, total hardess, calcium, magnessium, chloride, free CO₂total dissolved solid, dissolved oxygen. The study was carried out in each season for two consecutive years. The range of pH was found to be 7.45 to 9.19 which indicates that the water is alkaline. Other parameters are in the normal range but show variations drastically with the change in season. Detail variation in the range of values of parameters and possible causes are discussed. In case of underground water it was found that, conductivity, alkalinity and hardness were high and much over the permissible limits. The effect of long term continuous extensive irrigation by underground water and application of increasing amount of chemical fertilizers and insecticides over years on water and soil quality on this area have been discussed.