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KMID : 1156220100360020077
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Journal of Environmental Health Sciences
2010 Volume.36 No. 2 p.77 ~ p.81
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Scientific Evidences of Thirdhand Smoke
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Lee Ki-Young
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Abstract
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Tobacco smoking and secondhand smoke exposure are linked to a number of adverse health outcomes. There is a new concept of thirdhand smoke that is residual tobacco smoke contamination remained after the cigarette is extinguished. This paper reviews published studies examining the residual tobacco smoke. Tobacco smoke can be attached to various surfaces and reemitted to air for long period of time. The dynamic process can allow thirdhand smoke exposure to tobacco smoke without direct exposure to secondhand smoke. One critical evidence of the thirdhand smoke exposure was significantly high urinary cotinine level of infant who did not have direct secondhand smoke exposure. Potential exposure to new and more potent chemicals generated from chemical reactions between residual tobacco smoke and ambient air pollutants can get more attention. Considering toxicity and exposure route, children are uniquely susceptible to thirdhand smoke exposure. The review provides strong background information for thirdhand smoke but warrant more researches on this issue.
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KEYWORD
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thirdhand smoke, surface sorption, residue, children
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