Seasonal Variation of Groundwater Quality in Erode District, Tamil Nadu, India

Abstract

In recent years, the recurring environmental issues regarding hazardous waste, global climate change, stratospheric ozone depletion, groundwater contamination, disaster mitigation and removal of pollutants have become the focus of environmental attention. In the management of water resources, the quality of water is just as important as its quantity. To assess the quality and/or suitability of groundwater for drinking and irrigation in Erode District, 144 water samples each in post-monsoon and pre-monsoon during the year 2007 were collected and analyzed for various parameters. These parameters were compared with IS: I 0500-1991 drinking water standards. Out of 144 samples, 29 san1ples exceeded the permissible limit for both the monsoons, 71 samples were within the permissible limit for both the monsoons and the remaining samples exceeded the permissible limit for any one of the monsoons. During both monsoons, except some samples, most of the samples were suitable for drinking and irrigation.