Researchers have discovered that a used cigarette butt - even one that is cold to the touch - can give off the equivalent of 14% of the nicotine that an actively burning cigarette emits. They are calling this newly discovered form of cigarette exposure ''after smoke'' or butt emissions.
from Health & Medicine News -- ScienceDaily https://www.sciencedaily.com/releases/2020/01/200129174514.htm
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