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Speciation Of Heavy Metals In Highway Drainage Systems, Lee P. Wiseman

Retrospective Theses and Dissertations

A trace metal speciation scheme proposed by Batley and Florence (1976) was applied to determine the physiochemical forms of zinc, cadmium, lead, and copper in two Central Florida highway drainage systems. The linearity and limitations of the ASV technique were also examined. The measurements showed that (a) more than 70% of the soluble Zn and Cd in all of the waters analyzed existed as liable ionic metal (b) lead was divided between labile and non-labile inorganic forms, but one particular form, PbCO₃, predominated (c) a substantial fraction of copper is associated with organic colloids if humic substances are …