Abstract
As part of an investigation of the removal of road surface contaminants in runoff water, samples of road drainage water have been examined by a comprehensive speciation scheme involving size discrimination by filtration through Nuclepore filters, anodic stripping voltammetry both with and without UV irradiation, and equilibration with Chelex resin, with a view to understanding the chemical associations of Cd, Cu, Pb, Mn and Fe in the waters. Samples were taken to represent different stages of a storm event and changes in speciation are seen to reflect changes in the flow regime and pH of the drainage water system. Upon leaving the highway, the waters enter a small receiving stream in which the speciation characteristics of the water downstream of the outfall were found to be dominated by the input drainage waters.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have