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Characterizing the distribution of particles in urban stormwater: advancements through improved sampling technology

August 19, 2013

A new sample collection system was developed to improve the representation of sediment in stormwater by integrating the entire water column. The depth-integrated sampler arm (DISA) was able to mitigate sediment stratification bias in storm water, thereby improving the characterization of particle size distribution from urban source areas. Collector streets had the lowest median particle diameter of 8 μm, followed by parking lots, arterial streets, feeder streets, and residential and mixed land use (32, 43, 50, 80 and 95 μm, respectively). Results from this study suggest there is no single distribution of particles that can be applied uniformly to runoff in urban environments; however, integrating more of the entire water column during the sample collection can address some of the shortcomings of a fixed-point sampler by reducing variability and bias caused by the stratification of solids in a water column.

Citation Information

Publication Year 2014
Title Characterizing the distribution of particles in urban stormwater: advancements through improved sampling technology
DOI 10.1080/1573062X.2013.820334
Authors William R. Selbig
Publication Type Article
Publication Subtype Journal Article
Series Title Urban Water Journal
Series Number
Index ID 70133842
Record Source USGS Publications Warehouse
USGS Organization Wisconsin Water Science Center