--- In Autism-Mercury@y..., "Jill" <duklet@e...> wrote:
> EPA standards refer to methylmercury, however, Thimerosal contains
> ethylmercury. Could someone please explain the difference between
> the two.
>
> Thanks,
>
> Jill

Methyl and ethyl are the organic groups stuck to the mercury atom.

Methyl as in wood alcohol (methanol), ethyl as in drinking alcohol
(ethanol).

The difference isn't very significant in this context.

And