Pollutant Accumulation-Runoff Simulations During Extraordinary Water Shortage

Abstract

The objectives of this study are to simulate the behavior of pollutants in an urban area, and to estimate theeffect in 1994 water shortage on pollutant runoff. The simulations using the series of precipitation data of 1994 as a droughtyear and 1988 as a normal year were done by the pollutant accumulation-runoff model which was developed from the data ofpollutants' behavior in urban areas observed continuously in 1993 and 1994.
As a result of the simulations, these following things are cleared.(1) The amount of annual runoff pollutant load is not sosmall compared to the small precipitation of 1994.(2) The behavior of pollutants in 1994 which accoumulated during summerand ran off at a stretch by a large storm in the middle of September was shown.(3) Road cleaning during dry periods candecrease pollutants which run off into the public water area during a storm event.
In the result, some available knowledge for the environmental management of water in urban areas has been obtained.