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Nice try, Willow, but in order to do that, you must assume:
1. 2000 hazardous chemicals in sidestream smoke,
2. All 2000 have a PEL of 1 ppm, and,
3. All 2000 have emission levels of 313 micrograms per cigarette.
I don't believe you have established any of these, let alone any one of them. Actually, we did establish one of them. Or at least, I did. I'll leave the rest for someone else...
BTW, PELs are established based on concurrent exposure. For instance, the level for benzene also assumes exposure to toluene, xylene, and cyclohexane, the common, relatively closely related solvents. For occupational exposure, we figure each component independently, and any additive effects are assumed to be covered within the low level of the PEL established, and the 1-in-1 million chance of increased risk. That may not be a safe assumption, but if you don't, you start combining multiple order of magnitude margins of error, and you end up with the ludicrous conclusion that eating an apple is 100% lethal...
[ 05-13-2003, 10:06 AM: Message edited by: Thorfinn ]
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