The quality of groundwater is being deteriorated leads to hazardous for human health because of high consumption of nitrogenous fertilizers for getting bumper crop production. The unutilized fertilizer-N leached to groundwater aquifer through deeper layer of soils that contaminate the groundwater. A case study was conducted for analyzing and monitoring the groundwater quality using GIS technique for the Jalandhar district of the central Punjab. The nitrate concentration in groundwater for all the blocks of Jalandhar district using Geographical Information System (GIS) technique was analysed and monitored. The nitrate concentration data for all the blocks were interpolated using GIS technique and nitrate concentration maps for the year 1991, 1993, 1995, 1997 and 2000 were prepared. The map showed that the nitrate concentration in ground water was fluctuating every year and found to be an increasing trend. The nitrate concentration in groundwater at Rurki of Rurka block increases from 51 mg/l in year 1991 to 87 mg/l in year 2000.
Nitrate, Fertilizer, Contamination, Groundwater, GIS
