title: The chemical fractionation and potential source identification of Cu, Zn and Cd on urban watershed.
abstract: This study showcases the chemical fractionation and primary source identification of Cu, Zn and Cd in road-deposited sediment. Results show that Zn and Cd were identified as easily mobilised and biologically available metals that pose high risks to the receiving aquatic environments. However, Cu was released in substantial amounts only under relatively extreme conditions. With the assistance of principal component analysis and chemical fractionation, two primary contributors to heavy metals in road-deposited sediment were tentatively identified as vehicle-related sources (especially, auto brake pad erosion for Cu and tyre debris for Zn) and atmospheric deposition (especially for Cd).
authors.affiliation: Institute of Urban Water Management, Technische Universität Dresden, 01062 Dresden, Germany.
authors.forename: Jin
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Chair of Water Supply Engineering, Institute of Urban Water Management, Technische Universität Dresden, 01062 Dresden, Germany E-mail: pei.hua@hotmail.com.
authors.forename: Pei
authors.initials: P
authors.lastname: Hua
authors.affiliation: Institute of Urban Water Management, Technische Universität Dresden, 01062 Dresden, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Krebs
mesh_terms: D005591:Chemical Fractionation; D002947:Cities; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis*; D019216:Metals, Heavy / Q000032:analysis*; D015032:Zinc / Q000032:analysis
chemical_list: D004785:Environmental Pollutants; D019216:Metals, Heavy; D015032:Zinc