Yes, but you can't have CO without smoke from the car's exhaust, and
that smoke is noxious and unpleasant after a short time. The coughing
and watering eyes will tell any animal with a survival instinct to GET
OUT long before the CO does any permanent damage.
Erm... In a word, *WRONG*.
While it is true that smoke and CO often "come as a set", the presence
of one is *TOTALLY* worthless as an indicator of the presence or absence
of the other. They can (and frequently do) exist separately - Smoke with
no CO, or CO with no smoke. Just because a fire/car exhaust/whatever is
putting out a cloud of smoke DOES NOT mean that it's putting out any
significant quantity of CO. It's *PROBABLE* that it is, but "probable"
doesn't equal "it is".
Hint: Someone could pump your house so full of CO that there's nothing
else in the atmosphere, and you'd never have the first clue that they
had done so - You'd simply die, quite probably without ever noticing
anything beyond "Damn, this headache I've got really sucks". Likewise,
that same someone could pump your house so full of smoke that you can't
see your hand in front of your face, yet not put so much as a single
molecule of CO into your atmosphere.
Smoke is nothing more or less than particulates (whose chemical
composition could be almost anything) fine enough to remain at least
temporarily suspended in the air.
CO *MIGHT* be a component of smoke, but the presence of smoke *DOES NOT*
imply that CO is present.
CO, on the other hand, is a very clearly defined chemical compound that
can (and all too frequently does) exist without the slightest trace of
Don Bruder - firstname.lastname@example.org - If your "From:" address isn\'t on my whitelist,
or the subject of the message doesn\'t contain the exact text "PopperAndShadow"
Absolutely right on. CO is an odorless gas..that headache and perhaps a
bit of nausea are the only indicators that something is amiss. Our
furnace at the old house had a cracked heat exchanger..it was a gas
furnace, so no odor was emitted and if the house had been airtight we
would have been dead, but it was poorly insulated and the crack where
the threshold met the back door was a full two inches without any
weatherstripping..we replaced the furnace, and no more headache/nausea.
There was never any smoke involved in that situation.
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