Jon--
        Toxic or not, poisonous or not--I don't think you want to be inhaling wood 
dust unnecessarily.
Sharp as your tools may be, a certain amount of dust is generated, and its 
accumulation in your lungs is not
healthy!  A paper filter mask at the least will help keep your nose clean.

Regards,
Leonard

----- Original Message -----
From: "Jon Murphy" <[EMAIL PROTECTED]>
To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>; "Ron Fletcher" <[EMAIL PROTECTED]>; 
"Roman
Turovsky" <[EMAIL PROTECTED]>
Sent: Friday, February 13, 2004 12:44 AM
Subject: Re: Do pegs get smooth and begin slipping?


> Roman,
>
> OSHA is not very good at what they do. I await the study (probably from
> Canada) that says that too much oxygen is toxic in rats. A toxin is
> specifically a poison, as in snake venom. Then there are the substances that
> are poisonous yet may be useful in low doses for certain conditions, such as
> digitalis. Everything else can be toxic depending on the dosage. I am always
> amused when carbon monoxide is referred to as a poisonous gas, it is not
> poisonous as cyanide gas is. It is toxic as it is readily absorbed by the
> red blood cells and blocks the absorption of oxygen. So in high
> concentrations it is toxic (fatal), but not of itself poisonous.
>
> One of the two forms of asbestos (the one with sharp edges) is carcinogenic,
> when breathed for years. OSHA requires that any building being renovated
> that has asbestos insulation must be isolated. How often have I seen six
> story buildings in NYC with a plastic shroud over the whole building (at
> tremendous cost) as they are being renovated and a bit of asbestos might get
> into the air. By the time the fibers are out in the street the
> concentrations are such that there is no danger. It takes years of breathing
> the stuff to gain a concentration that is carcinogenic.
>
> A toxin is a poison, and even small amounts have an immediate effect. An
> excess of any substance, no matter how benign may be toxic in the long haul.
> OSHA seems to have the view that anything that may be toxic in excess is
> therefore a toxin.
>
> Best, Jon
>
> ----- Original Message -----
> From: "Roman Turovsky" <[EMAIL PROTECTED]>
> To: "Jon Murphy" <[EMAIL PROTECTED]>; "'[EMAIL PROTECTED]'"
> <[EMAIL PROTECTED]>; "Ron Fletcher" <[EMAIL PROTECTED]>
> Sent: Wednesday, February 11, 2004 8:56 AM
> Subject: Re: Do pegs get smooth and begin slipping?
>
>
> > Jon, pretty much any saw dust is toxic (even pine). This is definitely
> > OSHA'a opinion.
> > RT
> > ______________
> > Roman M. Turovsky
> > http://turovsky.org
> > http://polyhymnion.org
> >
> > > Poison needs to be absorbed or ingested (or injected, but avoid
> scorpians
> > > and venomous snakes). Either way it has to be loose enough, or floating
> > > enough, to get into your system. I'll lick that Laburnum peg, but I
> don't
> > > think I'll chew it up and swallow it (and my teeth aren't that strong
> > > anyway).
> >
> >
> >
> >
> >
>
>
>


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