St. Paul Pioneer Press 08/30/2006
Smoking ban clears air in bars, study says: "Several bar owners, however, have said the ban is damaging their businesses. And charitable gaming revenue, much of which comes from pull-tabs and is linked to bar business, took a hit after the ban, according to the Minnesota Gambling Control Board.
The survey studied fine particles smaller than 2.5 microns, which are considered more dangerous to human health since they penetrate deeper into the lungs. Secondhand smoke � which contains such toxic chemicals as formaldehyde, cyanide, ammonia and nicotine � is linked to 38,000 deaths annually."
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