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

Urban Water Journal
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Abstract

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.

Publication type Article
Publication Subtype Journal Article
Title Characterizing the distribution of particles in urban stormwater: advancements through improved sampling technology
Series title Urban Water Journal
DOI 10.1080/1573062X.2013.820334
Volume 12
Issue 2
Year Published 2014
Language English
Publisher Taylor & Francis
Contributing office(s) Wisconsin Water Science Center
Description 9 p.
First page 111
Last page 119
Online Only (Y/N) N
Additional Online Files (Y/N) N
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