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Air Quality, Atmosphere & Health

, Volume 12, Issue 2, pp 151–159 | Cite as

Assessment of indoor air pollution exposure in urban hospital microenvironments

  • Mahmoud Mohammadyan
  • Sepideh Keyvani
  • Ali Bahrami
  • Kaan Yetilmezsoy
  • Behzad HeibatiEmail author
  • Krystal J. Godri Pollitt
Article

Abstract

Hospitals are microenvironments containing populations with potentially enhanced sensitivity to air pollution. The objectives of this study were to characterize the concentration of indoor and outdoor size-fractionated particulate matter (PM) at two urban hospital sites in Kashan, Iran, and to evaluate the relationship between indoor and outdoor PM levels. PM1.0, PM2.5, and PM10 concentrations were measured over a 3-month period outside each hospital with parallel sampling at four indoor locations in patient wards. The results indicated that mean indoor concentrations at the sampling sites (PM1.0 = 17.8 μg/m3, PM2.5 = 45.5 μg/m3, and PM10 = 162.7 μg/m3) were found to be lower than outdoors levels (PM1.0 = 20.6 μg/m3, PM2.5 = 62.1 μg/m3, and PM10 = 300.6 μg/m3). Outdoor and indoor PM mass concentrations were associated with PM1.0, PM2.5, and PM10.0. Ambient wind speed also influenced the indoor/outdoor relationship for PM1.0 and PM2.5 but not for PM10. The average I/O ratios for PM2.5 in the intensive care unit (ICU) and children’s ward at Shahid Beheshti Hospital were close to or above 1.00. Indoor PM1.0 and PM2.5 concentrations were found to be positively associated with outdoor PM1.0 and PM2.5 concentrations, but no relationship was observed with PM10. The present findings may inform policymakers in implementing evidence-based efforts for the aim of improving the indoor air quality in closed and confined spaces.

Keywords

Indoor air quality PM2.5 PM10 Hospitals Iran 

Notes

Acknowledgements

The authors thank the manager and personnel of the Shahid Beheshti and Naghavi Hospitals for their kind cooperation.

Funding Information

This work was financially supported by Mazandaran University of Medical Sciences (Award Number: 93-7225).

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

11869_2018_637_MOESM1_ESM.docx (141 kb)
ESM 1 (DOCX 141 kb)

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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  • Mahmoud Mohammadyan
    • 1
  • Sepideh Keyvani
    • 2
  • Ali Bahrami
    • 3
  • Kaan Yetilmezsoy
    • 4
  • Behzad Heibati
    • 5
    Email author
  • Krystal J. Godri Pollitt
    • 6
  1. 1.Health Sciences Research Centre, Faculty of HealthMazandaran University of Medical SciencesSariIran
  2. 2.Department of Occupational Health, Faculty of HealthMazandaran University of Medical SciencesSariIran
  3. 3.Department of Occupational Health, Faculty of HealthKashan University of Medical SciencesKashanIran
  4. 4.Department of Environmental Engineering, Faculty of Civil EngineeringYildiz Technical UniversityEsenler, IstanbulTurkey
  5. 5.Air Pollution Research Center, Faculty of HealthIran University of Medical SciencesTehranIran
  6. 6.Department of Environmental Health SciencesYale UniversityNew HavenUSA

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