Quote:
Originally Posted by blankall
The vast majority of those chemicals are natural by-products of incompletely burning hydrocarbons. They will be found in burn. The heavy metals are from pesticides and will be found in only very trace amounts. The amount you would expect to breath in from difused second hand smoke is pretty neglible.
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Do you run your car in a closed room you simultaneously occupy? And why are you only focusing on lung cancer outcomes? Smoking is causative in a ton of other health ailments like COPD, heart attacks, strokes, aneurysms, high blood pressure, other cancers (bladder cancer is actually more common than lung), anemia, cavities...etc.