Since a toxicologist is out there, what about using aluminum pipes or
aluminum foil for burning resins, is there an Alzheimers disease link?
Some years ago a scare went out that cooking with aluminum pots could
cause the disease, although I think that was later discredited.

Lasse Tjo wrote:

> I have heard/read that smoking marijuana or hashish through copper pipes
> is dangerous, as the THC supposedly reacts with the copper. Does anyone
> know whether this is true? And if so, does the same go for brass or
> bronze?
> _______

This is NOT true - it is an 'urban legend' (at least in parts of
europe). You
will not be able to achieve toxic levels of copper 'fumes' by smoking
marijuana
or hashish in pipes made of this material. Not with the usual alloys of
brass
and bronze either, unless they contain lead (some rare types of bronze).
One
should not use pipes with solder, as this contains lead, and may also
contain
the very toxic metal cadmium.
By use, the inside of the pipe -and its 'screen', will get coated with
tars,
covering the metal.
The exposure to tars is the greatest health risk in smoking.
I thought about it. A butane lighter really isnt hot enough to vapourize any aluminum, so smoking out of an aluminum pipe cant give you alzheimers. The only thing to worry about would be extra coatings on aluminum foil, which if they can vapourize, one can easily burn them off before smoking.