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... ing a patient to get a blood test" wasn’t feasible either.
However, the presence of a lead-zinc mine immediately triggered his memory—ah, cadmium pollution!
This is well known!
Lead-zinc mines often contain a variety of minerals such as silver, copper, sulfur, gold, indium, gallium, cadmium, and germanium. Among these, the most notorious environmental pollution caused during mining and smelting processes is the cadmium poisoning incidents.
In the past, in the 20th ...
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