In the Pingtung Plain of southern Taiwan, elevated levels of NO₃--N in groundwater have been reported. Therefore, efforts for assessing groundwater vulnerability are required as part of the critical steps to prevent and control groundwater pollution. This study makes a groundwater vulnerability assessment for the Pingtung Plain using an improved overlay and index-based DRASTIC model. The improv...

Surface water quality can be determined by hydrological responses that vary geographically. The sub-surface hydrologic environment, however, has a primary influence on groundwater movement and hence pollutant migration to the subsurface water. Maps of aquifer vulnerability to pollution are becoming more in demand because on the one hand groundwater represents the main source of drinking water, ...

Abstract Background Nitrate contamination of groundwater often occurs in urban and industrial areas due to point non-point sources anthropological activities. Groundwater constitutes a significant portion the water supply system for Bahir Dar City Ethiopia, though level pollution is not known. This study was conducted assess extent aquifer (nitrate) based on contaminant vulnerability risk mappi...

The goal of this study is to determine the vulnerability groundwater in northern Iraq's Nineveh Plain by utilizing DRASTIC method and geographic information systems (GIS). In context human or environmental systems, refers potential for harm as a result stress disturbance, it may be related particular system, hazard, group hazards. map includes three categories: very low, medium. Following resul...