RE: Safety sheet, ozone

> 4.0) Ozone, Nitrites, and Vapors
> There have been anecdotal references to people becoming ill due to ozone
> toxicity.  The long term bioeffects are unknown.  (On the other hand,
> it does help out the ozone layer!)

Ozone at ground level is considered a pollutant.  It doesn't rise high
enough into the atmosphere to  mix into the upper ozone layer.  I'm not
an expert or anything, but I think it is measured in our breathing air
as a pollutant.   Just my 2 cents worth on the excellent safety FAQ you
guys have produced.