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). > > > > > > > > > > > > >