Expired CME Article

Immediate Impact of Smoke-free Laws on Indoor Air Quality

Authors: Kiyoung Lee, ScD, MPH, Ellen J. Hahn, DNS, RN, Carol Riker, MSN, RN, Sara Head, MPH, Peggy Seithers, RN

Abstract

Smoke-free laws significantly impact indoor air quality. However, the temporal effects of these laws on indoor air pollution have not been determined. This paper assesses the temporal impact of one smoke-free law on indoor air quality. This quasi-experimental study compared the indoor air quality of nine hospitality venues and one bingo hall in Georgetown, Kentucky, before and after implementation of a 100% smoke-free workplace law. We made real-time measurements of particulate matter with 2.5 μm aerodynamic diameter or smaller (PM2.5). Among the nine Georgetown hospitality venues, the average indoor PM2.5 concentration was 84 μg/m3 before the law took effect. The average indoor PM2.5 concentrations in nine compliant venues significantly decreased to 18 μg/m3 one week after the law took effect. Three venues having 82 μg/m3 before the law had significantly lower levels from the first day the law was implemented, and the low level was maintained. Compliance with the law is critical to achieving clean indoor air. Indoor air pollution in the bingo hall was not reduced until the establishment decided to comply with the law. The smoke-free law showed immediate impact on indoor air quality.


Key Points


* A 100% smoke-free law significantly impacts indoor air quality.


* Compliance with the law is critical to achieving clean indoor air.

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