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KMID : 1156220140400010010
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Journal of Environmental Health Sciences
2014 Volume.40 No. 1 p.10 ~ p.16
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Pilot Study for Difference of Secondhand Smoke Exposure at Smoking and Non-smoking Nightclubs
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Kuag Soo-Young
Lee Bo-Ram
Siyu Xu
Lee Ki-Young
Lee Do-Hoon
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Abstract
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Objective:This pilot study assessed secondhand smoke (SHS) exposure in smoking and non-smoking nightclubs in Seoul, Korea by measuring the concentration of particulate matter smaller than 2.5 μm (PM2.5).
Methods:This comparative study was conducted in three nightclubs in Seoul. While one non-smoking nightclub was measured on weekdays and weekends, different smoking nightclubs were measured on weekdays and weekends. The concentration of PM2.5 was observed using a real-time monitor over an average of three hours. The number of people in the clubs was also estimated. Settled dust was collected in a smoking and a nonsmoking nightclub and analyzed for NNK concentration.
Results:The PM2.5 concentration in the smoking nightclubs was higher than those found in the non-smoking nightclub by 26 times on weekdays and three times on weekends. Indoor PM2.5 concentration was correlated with the number of people in the smoking nightclubs. Relatively high PM2.5 concentration was observed in the nonsmoking nightclub on weekends. NNK concentration in the smoking nightclub was 7 times higer than in the nonsmoking nightclub.
Conclusion:Smoking in nightclubs caused high PM2.5 concentration. Although the non-smoking nightclub had a lower PM2.5 concentration, PM2.5 concentration on weekends was higher due to the smoking room. Complete prohibition of smoking in nightclubs can protect patrons from secondhand smoke exposure.
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KEYWORD
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Indoor air , Nightclub , NNK , PM< , SUB> , 2.5< , /SUB> , Secondhand smoke
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