Heavy metal iboka rekutsvaga zvinhu zvinosanganisira simbi uye metalloids zvakaita se arsenic, cadmium, chromium, cobalt, mhangura, iron, lead, manganese, mercury, nickel, tini uye zinc. Metal ions inozivikanwa kusvibisa ivhu, mhepo uye mvura masisitimu uye ine muchetura ...
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