Health Effects
Anecdotal evidence exists of ZnCdS having adverse health effects as a result of LAC. However, a U.S. government study, done by the U.S. National Research Council stated, in part, "After an exhaustive, independent review requested by Congress, we have found no evidence that exposure to zinc cadmium sulfide at these levels could cause people to become sick." Still, the use of ZnCdS remains controversial and one critic accused the Army of "literally using the country as an experimental laboratory".
Read more about this topic: Zinc Cadmium Sulfide
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