Over the past quarter century, primarily as a result of scientific discovery, citizen advocacy, and legislative action, comprehensive clean indoor air laws have spread rapidly throughout the world. Laws that establish completely smoke-free indoor environments have many relative advantages including being low cost, safe, effective, and easy to implement. The diffusion of these laws has been associated with a dramatic and rapid reduction in population levels of serum cotinine among nonsmokers and has also contributed to a reduction in overall cigarette consumption among smokers, with no adverse economic impact, except to the tobacco industry. Currently, nearly half of the U.S. population lives in jurisdictions with some combination of completely smoke-free workplaces, restaurants, or bars. The diffusion of clean indoor air laws is spreading rapidly throughout the world, stimulated by the first global health treaty, the Framework Convention on Tobacco Control.

中文翻译：

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清洁室内空气法的传播和影响。

在过去的25年中，主要由于科学发现，公民倡导和立法行动的结果，全面的室内清洁空气法律已在世界范围内迅速传播。建立完全无烟室内环境的法律具有许多相对优势，包括低成本，安全，有效和易于实施。这些法律的传播与不吸烟者中血清可替宁的人群水平急剧下降有关，并且还有助于减少吸烟者的总体香烟消费量，对烟草业没有不利的经济影响。目前，将近一半的美国人口居住在完全无烟的工作场所，餐厅或酒吧的辖区中。