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Investigation of Contamination Level of Environmental Tobacco Smoke in Public Places and Workplaces

HUANG Lu,YANG Gong-huan,GUO Xin-biao,et al. Beijing Dongcheng Center for Disease Control and Prevention,Beijing 100009,China  
Objective To investigate the contamination level of environmental tobacco smoke (ETS) in the public places and workplaces in Dongcheng district of Beijing and identify the influencing factors for ETS exposure. Methods The contamination level of ETS in 14 public places and workplaces of Dongcheng district were monitored with passive sampler of vapor-phase nicotine during Apr.-Feb.,2004. Results Nicotine was detected from all monitor sites at the 14 locations. The lowest air nicotine concentration was detected in no smoking places and the highest one was detected in non-regulation places. There were many factors which were found to influence the indoor air nicotine concentration,including legislation,the number of smokers and the room space,etc. The most significant factor was found to be the numbers of smokers. Conclusion Exposure to ETS in the pubic places and workplaces has become a major pubic and occupational health issue at present.
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