Chemical composition of exhaled cigarette smoke: does it change?
Many studies talk about sidestream smoke (which is one part of second hand smoke), and suggest this is diluted smoke which is burned off at 600 degrees (when a smoker is resting) versus 800 degrees (when a smoker actually takes a puff).
What I really want to know is... is...and if so, how is the chemical composition of exhaled cigarette smoke different than the sidestream smoke?
Thanks!
Answer:
The chemical composition of cigarette smoke does not change when it is exhaled. It changes when it is filtered.
There is a difference in composition between the exhaled (mainstream) smoke and the sidestream smoke. This comes because most all cigarettes are filtered. The filter prevents the smoker from inhaling some of the worst components of the smoke. This filtered smoke is then what gets exhaled. The sidestream smoke comes off the burning tip and is not filtered. Therefore, this sidestream smoke is much worse for a person to inhale than the filtered mainstream smoke.
California goverment equailed exhaled tobacco smoke as air pollution substance.
To this conclusion came California Air Resources Board.
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