Prediction of runoff pollutant load considering characteristics of river basin

The objectives of this study are to establish a runoff model and show profiles of pollutant runoff by simulating the change in runoff load with variance in the characteristics of river basins (i.e. population, urban area, rate of sewerage, etc.). The model, hereinafter referred to as ''MACRO MODEL'', consists of three main sections. The first one shows pollutant runoff from point sources taking into consideration the sedimentation of pollutants in sewers. The second and third ones show pollutant runoff from nonpoint sources in an urban and rural area taking land use into consideration. Since it was proved that MACRO MODEL could simulate runoff load accurately enough to predict profiles of pollutant runoff, it has become possible to estimate the effect of characteristics of a river basin on pollutant runoff. As a result, some available knowledge concerned with the environmental management of water was obtained by using MACRO MODEL. Copyright (C) 1996 IAWQ.