Continued Reduction of Particulate Matter in Bars Six Months After Adoption of a Smoke-Free Ordinance
The purpose of this study was to measure particulate matter (PM2.5) in pubs and bars prior to the adoption of a comprehensive, citywide smoke-free ordinance, as well as at multiple time points after adoption. Ten venues in a Southern U.S. city were measured at 1-month preordinance and at 1-, 3-, and 6-month postordinance. Air quality risk was determined by the U.S. Environmental Protection Agency's Air Quality Index. Data revealed a statistically significant difference (p< .001; Eta2 = .889) in PM2.5 levels for the four time points. Air quality measurements showed that PM2.5 was 202.17 ± 97.89 (mean ± SD) at 1-month preordinance, 25.53 ± 14.18 at 1-month postordinance, 18.00 ± 8.43 at 3-month postordinance, and 10.77 ± 2.45 at 6-month postordinance. At the preordinance measurement, no venue was found to be in the "good" (minimal risk) range of the Air Quality Index; however, 100% of venues presented minimal air quality risk by the 3-month postordinance measurement. This study shows that adoption of smoke-free ordinances yields immediate reductions in health risks with continued air quality improvements up to 6-month postordinance (the last time point measured).
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Speaker / Author:
Ronald D. Williams, Jr., PhD, CHES, Department of Health and Human Performance, Texas State University
Jeff M. Housman, PhD, MCHES, Department of Health and Human Performance, Texas State University
Jennifer L. Evans, MEd, CHES, Department of Health Science, University of Alabama