Originally Posted by VEGANGELICA

The health effects of third-hand smoke on infants have not been studied yet, since only during the last year or so have people realized that third-hand smoke may be a significant concern. Because second-hand smoke is known to be especially harmful to children (Health Effects | Smoke-free Homes Program | US EPA), the concern is that children may also be particularly harmed by the third-hand smoke chemicals such as nicotine, which sticks to surfaces after a cigarette is extinguished and can convert into a strong carcinogen.