Effect of Smoking on Breathing, Gas Exchange & Pregnancy
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Tar is a sticky brown substance produced by cigarettes that can stain a smoker's fingers and teeth yellow/brown. It is also sometimes known as total particulate matter and is inhaled when a cigarette is smoked. Some of the chemicals in tar include benzene and benzo(a)pyrene.
Tobacco smoke contains many harmful gases that can be damaging to the body such as carbon monoxide, formaldehyde, hydrogen cyanide, ammonia and acrolein.
Passive smoking is involuntary smoking by non-smokers inhaling the smoke of others. Smoke emitted from a lighted cigarette can…
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