title: [Impact of smoking ban at indoor public places on indoor air quality].
abstract: BACKGROUND
  This study aims at evaluation of the effect of smoke-free policy at hospitality workplaces on indoor air quality.
  
  
  METHODS
  Study includes 151 hospitality venues (restaurants, cafes, bars and tea-houses) at eight provinces of Turkey. PM2.5 measurements were done at each of the venues three months prior to, and 4-5 months after the implementation of smoking ban at the same venues. Measurements were done using SidePak 2.5 by two engineers. During the 30 minutes of measurement, the device takes multiple samples, measures PM2.5 particles, and calculates the average value and standard deviation of the measurements.
  
  
  RESULTS
  Using the measurement results two kinds of evaluation were done: in each province, increase/decrease after implementation for each of the venues included in the study was evaluated, and average PM2.5 values were calculated for provinces using the PM2.5 values of the venues in the province. The average PM2.5 values before the implementation were higher than the post implementation values in general. Nevertheless, in some provinces higher values were found during the second measurements, particularly at the restaurants.
  
  
  CONCLUSIONS
  Therefore, there is need to enforce the smoking ban at the hospitality workplaces.
authors.affiliation: Department of Public Health, Faculty of Medicine, Hacettepe University, Ankara, Turkey. nbilir@hacettepe.edu.tr
authors.forename: Nazmi
authors.initials: N
authors.lastname: Bilir
authors.forename: Hilal
authors.initials: H
authors.lastname: Özcebe
mesh_terms: D016902:Air Pollution, Indoor / Q000032:analysis* / Q000331:legislation & jurisprudence / Q000517:prevention & control / Q000706:statistics & numerical data; D004784:Environmental Monitoring; D006801:Humans; D052638:Particulate Matter / Q000032:analysis; D011633:Public Facilities / Q000331:legislation & jurisprudence* / Q000706:statistics & numerical data; D011640:Public Policy; D012147:Restaurants / Q000331:legislation & jurisprudence / Q000706:statistics & numerical data; D016540:Smoking Cessation / Q000331:legislation & jurisprudence*; D014028:Tobacco Smoke Pollution / Q000032:analysis* / Q000331:legislation & jurisprudence / Q000517:prevention & control / Q000706:statistics & numerical data
chemical_list: D052638:Particulate Matter; D014028:Tobacco Smoke Pollution