Non-point source groundwater pollution trends in an urban area

Soil is present everywhere, but not everywhere the groundwater within that soil is exploitable, or even in flowing at significant rate. Hence, the vulnerability to Non-Point source pollution can be distinguished in a vulnerability of the top soil layers and vulnerability of groundwater in exploitable aquifer systems. The effects of point sources may be serious at the affected location, but diffuse/Non-Point Sources also represent an important threat to the environment because of their widespread occurrence. The paper has focused on conceptualising the dominant spatial trends of essentially Non-Point pollution and identifying the main controlling factors within a urban setting in South India. In addition, the groundwater pollution trends and source identification are also emphasised. Physio-chemical analysis of groundwater in the study area revealed high levels of nitrates, chlorides, phosphates and fluorides. The factors responsible for groundwater pollution are identified gr suitable preventive measures are discussed.