-The New York Times Above E.P.A. guideline Impact Cadmium19x higher Prolonged exposure can produce toxic effects to the skeletal system and cause kidney, lung and bone disease.... Manganese11x higher Can lead to manganism, a rare form of Parkinson’s disease, and affect the reproductive system, causing maternal and fetal complications.... Children can suffer brain development disorders and lifelong impairments like a lowered I.Q. Cobalt3x higher Can cause cancer and skin, heart, lung and eye pr