Document Type : Original Article

Authors

1 School of Architecture and Environmental Design, Iran University of Science and Technology, Tehran, Iran

2 Department of Art and Architecture, Islamic Azad University, Shiraz, Iran

10.30476/smsj.2024.97703.1393

Abstract

Introduction: The importance of providing a healthy environment, which significantly impacts a patient’s health, renders indoor air quality (IAQ) a vital concern in medical settings. In particular, it is crucial to monitor and assess the air quality inside the building regularly. This study, conducted at Namazi Hospital, investigated parameters affecting air quality and measured them in the facility’s indoor air.
Methods: In this research, the acceptable limit of carbon dioxide, carbon monoxide, nitrogen dioxide, and PM2.5 and PM10 (particular matter) parameters were reviewed based on indoor air quality standards in medical environments.
Results: The measurements revealed that outdoor and indoor levels of carbon dioxide and carbon monoxide were below the acceptable limit set by international indoor air quality guidelines. Indoor levels of nitrogen dioxide were also below the acceptable limit, but outdoor levels exceeded it. Furthermore, indoor and outdoor levels of PM2.5 and PM10 exceeded the acceptable limit.
Conclusion: The traffic issue on the access routes to this hospital has directly impacted the air quality. Altering the arrangement of indoor furniture, using air purifiers in conjunction with ventilation devices, and renovating, especially replacing old windows and modifying the heating system, can enhance the air quality. Implementing environmental feedback strategies can also contribute to this improvement.

Keywords

  1. Megahed NA, Ghoneim EM. Indoor Air Quality: Rethinking rules of building design strategies in post-pandemic architecture. Environ Res. 2021;193:110471.
  2. Ariunsaikhan A, Chonokhuu S, Matsumi Y. Mobile Measurement of PM(2.5) Based on an Individual in Ulaanbaatar City. Int J Environ Res Public Health. 2020;17(8).
  3. Canha N, Alves AC, Marta CS, Lage J, Belo J, Faria T, et al. Compliance of indoor air quality during sleep with legislation and guidelines - A case study of Lisbon dwellings. Environ Pollut. 2020;264:114619.
  4. Ming T, Fang W, Peng C, Cai C, De Richter R, Ahmadi MH, et al. Impacts of traffic tidal flow on pollutant dispersion in a non-uniform urban street canyon. Atmosphere. 2018;9(3):82.
  5. Branco P, Alvim-Ferraz MCM, Martins FG, Ferraz C, Vaz LG, Sousa SIV. Impact of indoor air pollution in nursery and primary schools on childhood asthma. Sci Total Environ. 2020;745:140982.
  6. Nair AN, Anand P, George A, Mondal N. A review of strategies and their effectiveness in reducing indoor airborne transmission and improving indoor air quality. Environ Res. 2022;213:113579.
  7. Peixoto C, Slezakova K, do Carmo Pereira M, Morais S. Air quality in fitness centers: The impact of ventilation restrictions-A case study. U Porto Journal of Engineering. 2022;8(4):26-35.
  8. Mendes A, Bonassi S, Aguiar L, Pereira C, Neves P, Silva S, et al. Indoor air quality and thermal comfort in elderly care centers. Urban Climate. 2015;14:486-501.
  9. Zhou Q, Lyu Z, Qian H, Song J, Möbs VC. Field-measurement of CO2 level in general hospital wards in Nanjing. Procedia Engineering. 2015;121:52-8.
  10. Groulx N, Movahhedinia H, Edwards P, Qureshi F, Yip L, Katz K, et al. Medical air in healthcare institutions: A chemical and biological study. Atmospheric environment. 2019;219:117031.
  11. Tungjai A, Kubaha K. Indoor air quality evaluation of isolation room for hospital in Thailand. Energy procedia. 2017;138:858-63.
  12. Stamp S, Burman E, Shrubsole C, Chatzidiakou L, Mumovic D, Davies M. Long-term, continuous air quality monitoring in a cross-sectional study of three UK non-domestic buildings. Building and Environment. 2020;180:107071.
  13. Aung W-Y, Noguchi M, Yi E-EP-N, Thant Z, Uchiyama S, Win-Shwe T-T, et al. Preliminary assessment of outdoor and indoor air quality in Yangon city, Myanmar. Atmospheric Pollution Research. 2019;10(3):722-30.
  14. Jeong S-G, Kim M, Lee T, Lee J. Application of pre-filter system for reducing indoor PM2. 5 concentrations under different relative humidity levels. Building and Environment. 2021;192:107631.
  15. Achilleos S, Michanikou A, Kouis P, Papatheodorou SI, Panayiotou AG, Kinni P, et al. Improved indoor air quality during desert dust storms: The impact of the MEDEA exposure-reduction strategies. Sci Total Environ. 2023;863:160973.
  16. Agarwal N, Meena CS, Raj BP, Saini L, Kumar A, Gopalakrishnan N, et al. Indoor air quality improvement in COVID-19 pandemic: Review. Sustain Cities Soc. 2021;70:102942.
  17. Liu Y, Ning Z, Chen Y, Guo M, Liu Y, Gali NK, et al. Aerodynamic analysis of SARS-CoV-2 in two Wuhan hospitals. Nature. 2020;582(7813):557-60.
  18. Cansdale JH, MacPhee C. Technology Pacesetter-1922-Ashrae Guide And Data Book-1972. Ashrae Journal-American Society Of Heating Refrigerating And Air-Conditioning Engineers. 1972;14(5):35-&.
  19. Caracci E, Canale L, Buonanno G, Stabile L. Effectiveness of eco-feedback in improving the indoor air quality in residential buildings: Mitigation of the exposure to airborne particles. Building and Environment. 2022;226:109706.
  20. US Environmental Protection Agency [Internet]. IAQ guidelines. c2021. Available from: https://www.epa.gov/
  21. LEED [Internet]. LEED_v4.1. c2017. Available from: https://www.usgbc.org/leed/v41
  22. Occupational Safety and Health Administration U.S. Department of Labor [Internet]. All about OSHA. c2020. Available from: https://www.osha.gov/Publications/all_about_OSHA.pdf
  23. CCM [Internet]. Canadian Standards. c2021. Available from: https://www.ccme.ca/en/resources/air/index.html
  24. Organization WH. WHO guidelines for indoor air quality: selected pollutants: World Health Organization. Regional Office for Europe; 2010.
  25. NIOSH [Internet]. National Institute for Occupational Safety and Health. c2021. Available from: https://www.cdc.gov/niosh.htm
  26. ACGIH [Internet]. American Conference of Governmental Industrial Hygienists. c2021.; Available from: http://www.acgih.org
  27. EPA [Internet]. NIOSH. Building air quality. c1991. Available from: https://www.cdc.gov/niosh/docs/91-114/default.html
  28. Xu X, Zhang T. Spatial-temporal variability of PM2. 5 air quality in Beijing, China during 2013–2018. Journal of environmental management. 2020;262:110263.
  29. Zhang F, Xu J, Zhang Z, Meng H, Wang L, Lu J, et al. Ambient air quality and the effects of air pollutants on otolaryngology in Beijing. Environ Monit Assess. 2015;187(8):495.
  30. Ścibor M, Balcerzak B, Galbarczyk A, Targosz N, Jasienska G. Are we safe inside? Indoor air quality in relation to outdoor concentration of PM10 and PM2. 5 and to characteristics of homes. Sustainable Cities and Society. 2019;48:101537.
  31. Sicard P, Talbot C, Lesne O, Mangin A, Alexandre N, Collomp R. The Aggregate Risk Index: An intuitive tool providing the health risks of air pollution to health care community and public. Atmospheric environment. 2012;46:11-6.
  32. PEL O. Occupational Safety & Health Administration Permissible Exposure Limits. TWA–Time Weighted Average. 2021.
  33. Amoatey P, Omidvarborna H, Baawain MS, Al-Mamun A. Impact of building ventilation systems and habitual indoor incense burning on SARS-CoV-2 virus transmissions in Middle Eastern countries. Sci Total Environ. 2020;733:139356.
  34. Remmert V, Ciaburri C, Sandoval A, Stephenson C, Rojas A, Hernandez E, et al. Understanding community health needs and forging an academic global health partnership in Puebla, Mexico: a mixed methods study. The Lancet Global Health. 2020;8:S13.
  35. Grimalt JO, Vilchez H, Fraile-Ribot PA, Marco E, Campins A, Orfila J, et al. Spread of SARS-CoV-2 in hospital areas. Environ Res. 2022;204(Pt B):112074.
  36. Wu P, Fang Z, Luo H, Zheng Z, Zhu K, Yang Y, et al. Comparative analysis of indoor air quality in green office buildings of varying star levels based on the grey method. Building and Environment. 2021;195:107690.
  37. Deng S, Lau J. Seasonal variations of indoor air quality and thermal conditions and their correlations in 220 classrooms in the Midwestern United States. Building and Environment. 2019;157:79-88.
  38. Othman M, Latif MT, Yee CZ, Norshariffudin LK, Azhari A, Halim NDA, et al. PM2. 5 and ozone in office environments and their potential impact on human health. Ecotoxicology and environmental safety. 2020;194:110432.
  39. Pacitto A, Amato F, Moreno T, Pandolfi M, Fonseca A, Mazaheri M, et al. Effect of ventilation strategies and air purifiers on the children’s exposure to airborne particles and gaseous pollutants in school gyms. Sci Total Environ. 2020;712:135673.
  40. Tikul N, Hokpunna A, Chawana P. Improving indoor air quality in primary school buildings through optimized apertures and classroom furniture layouts. Journal of Building Engineering. 2022;62:105324.
  41. Vassella CC, Koch J, Henzi A, Jordan A, Waeber R, Iannaccone R, et al. From spontaneous to strategic natural window ventilation: Improving indoor air quality in Swiss schools. Int J Hyg Environ Health. 2021;234:113746.
  42. Alazazmeh A, Asif M. Commercial building retrofitting: Assessment of improvements in energy performance and indoor air quality. Case Studies in Thermal Engineering. 2021;26:100946.
  43. Parajuli I, Lee H, Shrestha KR. Indoor air quality and ventilation assessment of rural mountainous households of Nepal. International journal of sustainable built environment. 2016;5(2):301-11.