最新研究发现：“三手烟”也很危险！（双语）

　　你可能很早就知道二手烟的危害，并尽可能避免和吸烟者共处一室，但是即使房间内没有吸烟者，你也可能吸入“三手烟”。因为烟雾中的尼古丁等有毒化学物质会附着在墙壁、床单、地毯、衣服甚至皮肤上，只要是吸烟者停留过的地方，你就可能受到“三手烟”的毒害。

　　You can tell the dude sitting next to you in the movie theater is a smoker or vaper; you can smell it on his clothes. But since he's not lighting up and puffing smoke your way, it's OK, right?

　　你可以辨别出电影院里坐在你旁边的人吸不吸烟，你可以从他的衣服上闻到烟味。但只要他不点燃香烟并向着你吞云吐雾，就不会危害你的健康，对吗?

　　Not at all.

　　完全不对。

　　A new study out of Yale University says thirdhand smoke -- the tobacco contaminants that adhere to walls, bedding, carpet and other surfaces until a room smells like an ashtray -- can actually cling to a smoker's body and clothes as well.

　　耶鲁大学的一项新研究指出，三手烟，即吸附在墙壁、床单被褥、地毯和其他表面的烟草污染物，让房间闻起来像烟灰缸，事实上也会附着在吸烟者的身体和衣服上。

　　Those potentially toxic chemicals, including nicotine, can then be released into environments where smoking has never occurred, like your movie theater, according to the study.

　　研究发现，(吸附在吸烟者身上的)包括尼古丁在内的这些潜在的有毒化学物质之后会被释放到没人吸过烟的环境中，比如电影院。

　　Even more disturbing: The study found those chemical exposure levels could be the equivalent of between one and 10 cigarettes by the end of the movie.

　　更让人困扰的是：研究发现，看完一场电影，暴露在这些化学物质中所受的危害相当于吸了1到10根烟。

　　"People are substantial carriers of thirdhand smoke contaminants to other environments," said study author Drew Gentner, an associate professor of chemical and environmental engineering at Yale.

　　研究报告的作者、耶鲁大学化学与环境工程学副教授德鲁·金特纳说：“人们是将三手烟污染物携带到其他环境的重要载体。”

　　The study, published in the journal Science Advances, may be the first to show that people can transmit nicotine and other potentially toxic chemicals via their clothing after smoking, he said.

　　他说，这项发表在《科学进展》期刊上的研究可能是第一个表明人们吸烟后可以通过衣服来传播尼古丁和其他潜在有毒化学物质的研究。

　　"That was the unique part of this study," Gentner continued. "We were surprised by the wide array of hazardous volatile organic compounds that were off-gassing from the audience -- including some that are known to be carcinogens in people, such as benzene and formaldehyde."

　　金特纳继续说道：“这是本研究的一个独特之处。观众身上散发出的挥发性有害有机化合物——包括苯和甲醛等已知致癌物——种类之多让我们感到惊讶。”

　　什么是“三手烟”?

　　Thirdhand "smoke" isn't actually smoke at all. It's the residue of nicotine and other chemicals in tobacco, some of which are toxic, that remain long after active smoking is over.

　　三手烟其实根本不是烟。它是香烟中的尼古丁和其他化学物质的残留，其中一些化学物质是有毒的，在吸完烟很久后还能留存。

　　Some of these chemicals stick to surfaces, and others attach to dust particles. Still others often penetrate deep into wallboard, drapes and upholstery. As the compounds linger, they may react with oxidants or other particles in the room's atmosphere. The chemical reactions can create potentially harmful byproducts that can become airborne.

　　有些化学物质会附着在表面上，其他一些则会附着在粉尘上。还有一些化学物质经常会渗入墙板、窗帘和家具装饰品。在化合物停留期间，它们可能会和室内空气中的氧化物或其他颗粒发生化学反应。这些化学反应会产生有潜在危害的副产物，并通过空气传播。

　　upholstery[ʌpˈhoʊlstəri]: n. 家具装饰品(或衬垫等)

　　Science has known about this type of environmental pollution for years, sparking the creation of smoking and non-smoking rooms at hotels, restaurants and the like.

　　这种环境污染早在多年前就已被科学家知晓，并催生出酒店、餐厅等场所的吸烟室和无烟室。

　　But thirdhand smoke has also been found in environments which were not known to be contaminated by smokers, which led researchers to ask how that could happen.

　　但是在未被吸烟者污染过的环境中也发现了三手烟，这让研究人员发问：这是怎么发生的?