Even brief exposure to secondhand smoke in bars and restaurants can result in measurable levels of a toxin in workers' bodies that is known to cause lung cancer, U.S. researchers said on Thursday.
They found nonsmoking workers in Oregon who worked a single shift in a bar or restaurant that allowed smoking were more likely to have a detectable level of NNK -- a carcinogen linked with lung cancer -- in their bodies than those who worked in nonsmoking establishments.
Well, this is yet another good argument to ban all smoking from these types of establishments, or at least open the window.
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