Susanne Charlesworth SUDS Overview.pdf

Impacts of flooding on impermeablesurfaces Increased flow = increased erosion Evidence of the polluting effects of urban deposits –Charlesworth & Foster, 2005: some street dusts exceedthe 1mSv yr -1 limit to members of the publicrecommended by ICRP (1991). Above background levels of metallic elements in streetdusts and sediments Zn and Cu exceeded ICRCL action levels Removed from street surfaces as a “first foul flush”