4.7 Article

Formaldehyde and acetaldehyde in the indoor air of waterpipe cafes: Measuring exposures and assessing health effects

Journal

BUILDING AND ENVIRONMENT
Volume 165, Issue -, Pages -

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.buildenv.2019.106392

Keywords

Acetaldehyde; Formaldehyde; Indoor air; Risk assessment; Waterpipe cafes

Funding

  1. Social Determinants of Health Research Center [ARUMS.SDHRC.1397.09]

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The aims of this study were to investigate the exposure to formaldehyde (FA) and acetaldehyde (AA) concentrations in the indoor air of waterpipe (WP) cafes and to assess their health risk for smokers and employees. In this work, a number of 40 cafes were selected; the samples were taken from standing breathing zone of smokers and employees, and were analyzed using GC-MS. The results showed that the mean (+/- SD) concentrations of indoor air FA were 151.1 +/- 67 and 60 +/- 21.4 mu g/m(3) in cafes with fruit flavored tobacco and regular tobacco, respectively. This value for AA was 281.9 +/- 141.1 and 108.4 +/- 43.8 mu g/m(3) for cafes with fruit flavored tobacco and regular tobacco, respectively. The mean of inhalation lifetime cancer risk (LTCRs) for FA in smokers and employees were calculated 3.9x10(-5) and 19.3x10(-5), respectively. Also, the mean of estimated LTCRs for AA in smokers and employees were 1.3x10(-5) and 6.3x10(-5), respectively. The mean of Hazard quotients (HQ) for FA in Cafes with fruit flavored and regular tobacco in smokers and employees were calculated to be 0.4 and 3.4, and 0.1 and 1.3, respectively, indicating an unacceptable and high risk for employees. Also, the mean of HQ for AA in cafes with fruit flavored and regular tobacco for smokers and employees were calculated 0.8 and 7.1, and 0.3 and 2.7, respectively, indicating an unacceptably high risk for employees. Therefore, WP cafes can be a potential source for exposure to FA and AA that can cause health problems for exposed people, especially employees working in these places.

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