Once again, you take a long harangue (commom to us old Mountain/Desert Me n and Mark Twain afficianados) and cut to the basis of the discussion.  ; I actually have carried theatrical fog in this manner - since it wouldn 't stay lighted - I'd suggest zinc chloride inhalational toxicity - - can lead to severe chemical pneumonitis and even bronchiolitis obliterans , but NOT in this exposure scenario to my knowledge; yours may be diffe rent) and therefore was no risk to anybody except us poor folks trying to u se red phosphorus-based matches --we all seem to have survived) and finally decided to use charcoal briquettes with dowsed water as an alternat ive. Neither was particularly safe, and neither caused illness in the particular theater in which we were doing this amateur performance in Alaska.
Geez, Romona, are we with Rin-Tin-Tin and his side-kick Rusty an d Lt. Rip Masters going to come over the hills with the mythical "Wh ite Buffalo" going to be the ones?
The EU "precautionary principle" seems to me to be the epitomy of "NIMBY" " not it my backyard" which leads to the "Banana" principle "Build Absolutely Nothing Anywhere Near Anything." Not that it's wrong, but water and air are not "safe" in certain circustances: Query: shou ld we stop drinking water and breathing air? That's what the "Preca utionary Principle" would imply, unless we can be absolutery sure and ceriain that neither are harmful. (O2 at hyperbaric pressures f or more than 4 hours has toxicity -- see the Navy Diving Tables; hypoxia , I doubt anyone who has taken a Basic Life Support Course would doubt; high oxygen pO2s in premature neonates can result in serious damage to the eyes, and prolonged O2 in anyone can cause severe lung injuries).  ; Persons with a certain "hyperdipsia" of water (a potentially fatal psyc hologcal condition) can dilute out the electrolytes in their serum, resul ting in serious cardiac and brain toxicity (ill-advised use of certain cath artics in childhood ingestion poisonings has had the same regretable result ). I suggest on a medical basis that stopping breathing air would result in fatal brain hypoxic damage within 5 minutes and that failin g to be able to drink water would result in fatal issues in 3-5 days.  ;
"Is cyanide more toxic that water?" If the cyanide is a a proper co ntainer and stored in a proper exhaust hood, or if you were dropped from a helicopter into the middle of Lake Erie in December, which is more toxi c?
To answer the question, "Why do all of us eventually die?" We hav e to look at the fact that we are oxygen breathers and that this inevitably leads to formation of reactive oxygen species within cells, eventuating either necrosis or apotosis, and cell death and when this happens in too great of numbers, it cannot be survived.
As always, we agree to disagree. And as I have said for ages, M SDSs are a VERY, VERY poor source of information. Go to all of th e resources avalable to anyone, such as from the Specialized Information System of the National Library of Medicine: http:/nlm.nih.gov
Yes, the more we know about chemical exposures, the better off we'll be . But even in foods (without any contaminants), we can be exposed to millions of chemicals over a lifetime. In the end, all life i s chemical. As the Good Doctor Harry has said, being a chemist im plies chemical exposure. It does not mean that anyone should ever b e overexposed. So whatever any and all of do, let's do our best t o prevent overexposure.
The best thing in the world is to find a worthy adversary, even if most o f the time we're on the same page.
Alan H. Hall, M.D.
Are you asking about ACUTE toxi city? LD50's/LC50's/ED50's can basically only deal with this.  ;
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