DISTRIBUTION OF POLLUTANT MASS AND PHYSICAL PARTICULATE PROPERTIES ACROSS THE GRADATION OF ANTHROPOGENIC URBAN SNOW RESIDUALS

Urban snow has been found to have high concentrations of particulate and solid matter, with vehicular traffic being the main contributor of these pollutants. The majority of the particulates are not biodegradable, and therefore are hazardous to the environment. Urban snow has a much greater capacity to accumulate these traffic pollutants as compared to stormwater runoff. This study involves the assessment of physical and chemical characteristics of urban snow solid residuals from a series of highway sites in urban Cincinnati, Ohio. Results include bulk density, mass retained, specific surface area and heavy metal concentrations. Characterization of these residuals can contribute to an effective treatment system for urban snow runoff.