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KMID : 1156220150410020126
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Journal of Environmental Health Sciences
2015 Volume.41 No. 2 p.126 ~ p.132
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Indoor PM2.5 Concentrations in Different Sizes of Pubs with Non-comprehensive Smoke-free Regulation
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Kim Jeong-Hoon
Lim Chae-Yun
Lee Dae-Yeop
Kim Hye-Jin
Kuag Soo-Young
Lee Na-Eun
Kim Sang-Hwan
Ha Kwon-Chul
Lee Ki-Young
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Abstract
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Objectives: The Korean government implemented a smoke-free regulation for pubs with a net indoor area of ≥100 m2 on January 1, 2014. The purpose of this study was to determine the indoor levels of concentrations of particulate matter smaller than 2.5 μm (PM2.5) in implemented and non-implemented pubs in Seoul and Changwon.
Methods: PM2.5 concentrations in fifty-two 100-150 m2 (implemented) and fifty-seven <100 m2 (nonimplemented) pubs were measured. A real-time aerosol monitor was used to measure PM2.5 concentrations. Field technicians recorded characteristics of the pubs including net indoor area, indoor volume and presence of smoking rooms and counted the number of burning cigarettes, patrons and vents.
Results: Differences between indoor and outdoor PM2.5 concentrations in 100-150 m2 and <100 m2 pubs were not significantly different in each city. Smoking was observed in 33% of 100-150 m2 pubs and 51% of <100 m2 pubs. Average differences between indoor and outdoor PM2.5 concentrations in the 100-150 m2 and <100 m2 pubs were 79.2 μg/m3 and 155.6 μg/m3, respectively. When smokers were not observed, differences between indoor and outdoor PM2.5 concentrations ware 12.4 μg/m3 in 100-150 m2 pubs and 24.5 μg/m3 in <100 m2 pubs.
Conclusion: Although the regulation was implemented only in ≥100 m2 pubs, a higher difference between indoor and outdoor PM2.5 concentrations was observed in implemented and non-implemented pubs with smokers. Strict implementation of the regulation in all pubs is needed for better indoor air quality.
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KEYWORD
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Indoor air quality , PM2.5 , Pub , Secondhand smoke , Smoke-free regulation
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