CHARACTERIZATION OF POLLUTION IN URBAN STORMWATER RUNOFF

The study described was made to quantify urban stormwater quality for a range of urban catchments with varying land use patterns, relating the pollution loads to the rainfall runoff process. Rainfall, runoff and pollutant data for five study catchments were analyzed in detail. Data analysis for these catchments included calculation of mean pollutant concentrations, mean flow weighted concentrations, development of relationships between rainfall and runoff, and between pollutant exports and runoff, a review of antecedent rainfall, calculation of pollution loads on an area basis, an investigation of possible relationships between concentrations of pollutants, and an examination of initial flush effects.