The aquifer pollution vulnerability concept: Aid or impediment in promoting groundwater protection?

摘要

The term 'aquifer pollution vulnerability' was first coined by Margat (1968), and subsequently given a working definition plus a practical tool-box in the mid-1980s by the US Environmental Protection Agency (EPA) through DRASTIC (Aller et al. 1987) and by WHO and the Pan American Health Organization (PAHO) through GOD (Foster 1987; Foster and Hirata 1988). The concept attempted to represent the sensitivity of an aquifer to being adversely affected at any given point by an imposed contaminant pressure (or load) from the land surface. It being possible to: & Have high vulnerability but no pollution hazard given the absence of a contaminant load & Control contaminant load according to aquifer pollution vulnerability.