Nicotine in third-hand smoke, the residue from tobacco smoke that clings to virtually all surfaces long after a cigarette has been extinguished, reacts with the common indoor air pollutant nitrous acid to produce dangerous carcinogens
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A NNK/nicotine ratio in hair is a very promising new marker and its values should be compared with those obtained f r om smokers in order to confirm if a significant increase in the relative NNK exposure with respect to nicotine could be detected in passive smokers
A bond between a carbon and oxygen atom is what we would refer to as a polar bond, as the bonding electrons are pulled closer to the oxygen atom, giving it a slight negative charge
If the tobacco is drying too fast (drying before yellowing), close the vents
