Strength of smoke-free air laws and indoor air quality
Strength of smoke-free air laws and indoor air quality
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DOI：
10.1093/ntr/ntp026
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发表时间：
2009-04-01
影响因子：
4.7
通讯作者：
Travers, Mark J.
中科院分区：
文献类型：
--
作者：
Lee, Kiyoung;Hahn, Ellen J.;Travers, Mark J.
许多肯塔基州社区已经实施了无烟空气法，以保护公众免受二手烟暴露的有害影响。评估了不同强度的无烟空气法规对室内空气质量的影响，在全面无烟空气法规实施前后的7个社区和仅在部分无烟空气法规实施后的2个社区对酒店场所的室内空气质量进行了评估。一个社区被测量了三次：在任何无烟空气法之前，在最初的部分法律之后，以及在法律得到加强以涵盖所有工作场所和公共场所，几乎没有例外。对空气动力学直径小于或等于2.5 μ m的颗粒物（PM2.5）进行了实时测量。实施全面无烟空气法后，室内PM2.5浓度从161 μ g/m3大幅降至20 μ g/m3。在通过局部禁烟法后实施了全面禁烟法的某个社区，室内PM2.5浓度在实施局部禁烟法前为304 mug/m3，实施局部禁烟法后为338 mug/m3，实施全面禁烟法后为9 mug/m3。一个显着的线性趋势表明，PM2.5水平的机构减少燃烧香烟的数量。只有全面的无烟空气法才能有效减少二手烟草烟雾造成的室内空气污染。
Smoke-free air laws have been implemented in many Kentucky communities to protect the public from the harmful effects of secondhand smoke exposure. The impact of different strengths of smoke-free air laws on indoor air quality was assessed.Indoor air quality in hospitality venues was assessed in seven communities before and after comprehensive smoke-free air laws and in two communities only after partial smoke-free air laws. One community was measured three times: before any smoke-free air law, after the initial partial law, and after the law was strengthened to cover all workplaces and public places with few exemptions. Real-time measurements of particulate matters with 2.5 mu m aerodynamic diameter or smaller (PM2.5) were obtained.When comprehensive smoke-free air laws were implemented, indoor PM2.5 concentrations decreased significantly from 161 to 20 mu g/m(3). In one community that implemented a comprehensive smoke-free law after initially passing a partial law, indoor PM2.5 concentrations were 304 mu g/m(3) before the law, 338 mu g/m(3) after the partial law, and 9 mu g/m(3) after the comprehensive law.The study clearly demonstrated that partial smoke-free air laws do not improve indoor air quality. A significant linear trend indicated that PM2.5 levels in the establishments decreased with fewer numbers of burning cigarettes. Only comprehensive smoke-free air laws are effective in reducing indoor air pollution from secondhand tobacco smoke.