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“二手煙”對人體健康的危害剛剛普及得差不多，這“三手煙”又來了。其實說白了，吸煙這件事情就是有害的，不論是一手，二手，還是三手。

Third-hand smoke is generally considered to be residual nicotine and other chemicals left on a variety of indoor surfaces by tobacco smoke. This residue is thought to react with common indoor pollutants to create a toxic mix. This toxic mix of third-hand smoke contains cancer-causing substances, posing a potential health hazard to nonsmokers who are exposed to it, especially children.

三手煙（third-hand smoke）指吸煙之后殘留在室內各種物體表面的尼古丁以及其它化學物質。這些殘留物可能會與室內的其它污染物產生反應然后形成一種有毒的混合物。這種三手煙有毒混合物含有致癌物質，對接觸到該物質的非吸煙人群，尤其是兒童，有潛在的健康威脅。

Studies show that third-hand smoke clings to hair, skin, clothes, furniture, drapes, walls, bedding, carpets, dust, vehicles and other surfaces, even long after smoking has stopped. Infants, children and nonsmoking adults may be at risk of tobacco-related health problems when they inhale, ingest or touch substances containing third-hand smoke.

研究顯示，在煙被掐滅很長時間以后，三手煙還是會殘留在頭發、皮膚、衣服、家具、窗簾、墻壁、床鋪、地毯、灰塵、車輛以及其它物體的表面。嬰幼兒和不吸煙的成人吸入、攝入或者接觸到含有三手煙的物質后，就會有引發煙草類有關疾病的危險。

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（中國日報網英語點津 Helen）

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