Thirdhand Smoke May Be Harmful, Research Shows 

New evidence shows that thirdhand smoke, or “residual chemicals left on indoor surfaces by tobacco smoke,” could be harmful, according to The Washington Post. Research suggests that tobacco residue can be “absorbed through the skin, ingested and inhaled months and even years after the smoke has dissipated,” the report says.
Two studies suggested that thirdhand smoke increased the risk of lung cancer, liver damage, and diabetes in mice. Studies also suggested that smoke residue remains on floors and walls months after people no longer smoked in that area, and that smoking residue can seep into non-smoking areas and become airborne again in air-conditioning systems. In reaction to the growing research, the American Academy of Pediatrics issued a warning last year about the potential risks of thirdhand smoke. Read more at The Washington Post.


  1. how about smoke from cars, trucks, fireplaces, BBQ grills etc. the list is endless… what exactly is the point of issuing a warning to focus on a select group of people? just to get people nervous? or to further some researchers career and get more public $ grants to continue researching…
    detergents and shampoos etc. are also dangerous if ingested.. and can be absorbed thru the skin…
    bottom line, we all agree smoking is dangerous (I don’t smoke) but stop with the worthless research and scare mongering…


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