Processed data from the International Stormwater BMP Database

This dataset includes the data processed from the International Stormwater BMP Database (ISBD) for the analysis of 1) phosphorus (P) and nitrogen (N) control performances of bioretention cells, 2) P control performances of 6 typical stormwater best management practices (BMPs), and 3) urban stormwater runoff water quality in North America. Original concentration and flow data in the ISBD was used to calculate the reduction and enrichment factors for concentration or loading of pollutants such as P and N. Some variables such as BMP age that were explored for their influence on P control performance of stormwater BMPs were also calculated from original dataset and reported here.