Institute of Ecosystem Studies

2007 BES Annual Meeting Presentation and Poster Abstracts

Effectiveness of Street Sweeping as a Stormwater Best Management Practice
DiBlasi, Catherine
Co-Authors: Catherine DiBlasi, Dr. Upal Ghosh, Dr. Neely Law
Abstract: Municipal street sweeping is widely used as a stormwater best management practice (BMP) in urban environments. However, little data has been published on the effectiveness of this practice in reducing stormwater pollutant loads. A three-year research project is currently underway to develop improved estimates of the potential pollutant reductions possible through street sweeping. Performance of street sweeping was examined through a literature review, a multi-state municipal survey, and an intensive field monitoring program in Watershed 263 in Baltimore, Maryland. Field work, including the collection of street surface particulate matter and water quality monitoring, was completed in the Spring of 2007. Particulate matter sampling focused on the physical and chemical characterization of this material and the effects of street sweeping on the loading and composition of street particulate matter. The water quality monitoring program was designed as a paired catchment study to monitor changes in stormwater quality with respect to changes in street sweeping frequency and intensity. Data analysis for both the particulate matter and water quality work is underway and will continue through Fall of 2007. Results of this research will better define street particulate matter as a stormwater pollutant source and enable municipalities to maximize the effectiveness of street sweeping programs as stormwater BMPs.