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...and deadliest places in the world due mostly to heavy metal (mostly Zinc, Cadmium and Lead) tailings making their way into the local water supply.<ref>[http:

Effluent from mining activities consisting of cadmium, lead and mercury have degraded the Kafue River<ref>Munnick V. (2007) Solid

...zinc it also produced [[silver]], [[manganese]] and heavy metals such as [[cadmium]], [[vanadium]], and [[titanium]] in smaller quantities.<ref>[[Bruce Kapfer