Abstract
Assessment of impacts on water quality attributes is an essential component of environmental impact assessment (EIA) required for the planning of all major road projects. Most of the parameters involved for assessing impact on water quality attributes are spatial in nature and for a rational assessment it is necessary to quantify the impacts on individual attributes considering their spatial variations. In this paper a methodology is demonstrated with reference to a case study of highway development project in India, for the quantification of impact on individual water quality attributes. The spatial variation of impacts is captured with the help of Geographic Information System (GIS).
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