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The only way to solve this problem is to ensure that exposure to bioavailable
forms of these elements is kept to an absolute minimum. This requires that
drinking water is adequately purified, that food is monitored before sale to the
public, that the use of these metals is kept to a minimum, and that disposal of
contaminated waste is restricted to controlled and monitored sites. Once people
have absorbed toxic amounts of these elements in a bioavailable form, the
effects are essentially irreversible.
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