From: "Lawrence F. London, Jr." <london@metalab.unc.edu>
To: permaculture <permaculture@franklin.oit.unc.edu>
Subject: Re: Worm wood
Date: Fri, 19 Feb 1999 11:00:36 -0500 (EST)
On Fri, 19 Feb 1999, Eugene F. Monaco wrote:
> If this plastic lumber has vinyl products (pvc) in it and it gets heated
> beyond a specific temperature range (ie if in a sunny location) it will
> outgas carcinogenic substances. <
>
> Since the plastic has been UV exposed for a while in its current use, odds
> are it's outgassed a bunch already, making it somewhat inert, but who knows
> for sure. The outgassing follows a curve that diminishes with time.
Its not the UV its heat that causes the type of outgassing I am referring
to and it may not diminish over time necessarily.