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Levels and speciation of heavy metals in unpolluted river water

1997; Taylor & Francis; Volume: 58; Issue: 1-4 Linguagem: Inglês

10.1080/02772249709358404

1029-0486

Juan Antelo, Florencio Arce, Francisco J. Penedo,

Heavy metals in environment

The levels of Cu, Cd, Zn and Pb and their speciation at four sampling sites located along a river course relatively untouched by industrial or urban influence were monitored voltammetrically over a one‐year period. The metal levels found were well below those legally allowed. In those cases where the overall concentrations were high enough, the speciation patterns for Pb, Cu and Zn were obtained.