On Tue, 14 Mar 2000 12:08:51 -0800, William Evans wrote:
>fLUORINE,Arsenic, Cadmium, and Lead are essential micronutrients????
>??????
> I dont get it, I thought these were heavy metals (later 3)and a severe
>chemical disruptor( fluorine)?
It all depends on form and quantities. Most of the others on that list,
especially selenium and chromium, are also quite toxic in the wrong
place, the wrong form, or the wrong amount.
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