> > At the risk of starting a holy war, the largest source of dioxin, if my
> > memory serves me right, is forest fires and the burning of wood for heat
> > (dioxin is a product of incomplete combustion).
> So, given that we polluted the living bejesus out of our environment
> with dioxin, and then outlawed it in the late 60s, the largest source of
> dioxin TODAY is from bio-accumulated sources. Tress are the biggest,
> longest living of souch sources, so when they burn, they naturally
> release the most at once.
>
> But it's not like the dioxin got their on its own. Dow and bretheren
> put it there in the first place. :P
Organic chemistry is the chemistry of chance collisions. Heat, fire,
chlorine... all produce a class of chemicals called dioxins as minor
products. Dioxin is one of the reasons apartment house incinerators were
banned. And more recently, why milk cartons are produced by non-chlorine
bleaching of wood. (There was actually a bit of a scare over that one, not
that the public noticed... but the pulp mills sure did! And guess what,
they found it was cheaper to use non-chlorine bleach!)
Sorry, all the points go to Kathy.
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