Abstract
The focus of this study is to analyze the existing database of stormwater Best Management Practices (BMPs) and to provide guidance for future field construction. Water quality data of stormwater BMPs were retrieved from the International Stormwater BMP Database and analyses of the difference between the inflow and outflow event mean concentration were implemented based on the arithmetic estimation. The results derived from 47 water quality parameters indicate that stormwater BMPs are highly effective in the treatment of majority constituents. However, the BMPs caused the increase of total cadmium, total hardness, dissolved organic phosphorous and specific conductance. The treatment comparison study of different BMP types indicated that hydrodynamic device, mediafilter and retention pond were effective for treating the chemical oxygen demand, total Kjeldahl nitrogen, total phosphorous and total suspended solids. Biofilter were effective in treating main metals pollutants in stormwater. Combination of different BMP types would be alternative method in the future.
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