Measurement on the PM<sub>2.5</sub> concentration in one hotel with space separation of smoking indoor

DOI
  • Konishi Sae
    Department of Food and Nutrition, Faculty of Home Economics, Kyoto Women’s University
  • Yamato Hiroshi
    Department of Health Development, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health
  • Nishiyama Shingo
    Department of Health Development, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health
  • Jiang Ying
    Department of Health Development, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health
  • Doi Takashi
    Kyoto Association of Tobacco Control, Nonprofit Organization
  • Nishikawa Hiroyuki
    Rakuwakai Toji-Minami Hospital
  • Miyawaki Takashi
    Department of Food and Nutrition, Faculty of Home Economics, Kyoto Women’s University Kyoto Association of Tobacco Control, Nonprofit Organization Rakuwakai Toji-Minami Hospital

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Other Title
  • フロア分煙の某ホテルにおけるPM<sub>2.5 </sub>濃度の測定

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Objective: The aim of the study was to measure the concentration of fine particulate matter (PM2.5) in hotel air and assess guest exposure to passive smoking.<br>Methods: We measured PM2.5 concentration outside the business hotel X, in the non-smoking lobby, and in the hallways of both the non-smoking and smoking floors. The PM2.5 of smoke from a guest room on the smoking floor was measured from the hallway in front of the room.<br>Results: The PM2.5 concentration in the hallway of the smoking floor was significantly higher than that outside the hotel, in the lobby, or on the non-smoking floor. Also, the PM2.5 concentration on the non-smoking floor was significantly higher than that in the lobby. When someone smoked, the PM2.5 concentration in the hallway in front of their room rose two to three times than before. The average PM2.5 value on the smoking floors exceeded the average annual value stipulated by the Ministry of the Environment.<br>Conclusion: The PM2.5 concentration was high not only on the smoking floors, but on the non-smoking floors as well. It is possible that the cigarette smoke spread through the elevators and stairwells. Further, when a smoker lights a cigarette in their room, it is possible that PM2.5 may leak into the hallway through gaps of the door in the guest room door. Therefore, passive smoking cannot be avoided even in hotels with smoking and non-smoking floors.

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