cadmium lead and zinc in reclaimed gold calcite mine

cadmium lead and zinc in reclaimed gold calcite mine

A 1986 study, financed by Idarado Mining Co., found 7 percent of the children tested had blood lead levels above 10 ug/dL and the average was 6.1 ug/dL. The Centers for Disease Control and Prevention (CDC) had established 5 ug/dL as the blood lead level of concern for children. In a communitywide study, nine to 21 children were tested for blood ...

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