Acta Scientific Microbiology (ISSN: 2581-3226)

Editorial Volume 6 Issue 4

PM2.5, as A Potential SARS-CoV-2 (COVID-19) Carrier

Attapon Cheepsattayakorn1,2*, Ruangrong Cheepsattayakorn3 and Porntep Siriwanarangsun1

1Faculty of Medicine, Western University, Pathumtani Province, Thailand

210th Zonal Tuberculosis and Chest Disease Center, Chiang Mai, Thailand

3Department of Pathology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand

*Corresponding Author: Attapon Cheepsattayakorn, Faculty of Medicine, Western University, Pathumtani Province, Thailand.

Received: February 24, 2023; Published: March 01, 2023


PM2.5, a fine solid aerosols with diameter of 2.5 µm or less is ambient air [1]. There have reports of association between respiratory viruses and PM2.5 [2], but no correlation was found between PM’s diameter and the virus concentration [1]. PM2.5 in indoor environments is derived mainly from common outdoor sources [3-5]. PM2.5 with longer lifetime of the particles can be deposited in hospitals’ flooring [6,7] and any other surface materials [8,9]. A recent study at a teaching hospital, in Kuala Lumpur, Malaysia revealed that there was highest SARS-CoV-2 (COVID-19) RNA on PM2.5 in the number-of-occupant wards [1]. They demonstrated the association between the ward’s design and the SARS-CoV-2 (COVID-19)-laden PM2.5 (Figure 1 and Figure 2) [1].


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  3. Nadzir MSM., et al. “The impact of movement control order (MCO) during pandemic COVID-19 on local air quality in an urban area of Klang Valley, Malaysia”. Aerosol and Air Quality Research (2020).
  4. Marcazzan GM., et al. “Characterization of PM10 and PM2.5 particulate matter in the ambient air of Milan (Italy)”. Atmospheric Environment27 (2001): 4639-4650.
  5. Zhang L-Y and Cao F. “It is time to tackle PM2.5 air pollutants in China from biomass-burning emission?” Environmental Pollution 202 (2015): 217-219.
  6. Wang X., et al. “Hospital indoor PM10/PM2.5 and associated trace elements in Guangzhou, China”. Science of The Total Environment 1 (2006): 124-135.
  7. Gemenetzis P., et al. “Mass concentration and elemental composition of indoor PM2.5 and PM10 in University rooms in Thessaloniki, northern Greece”. Atmospheric Environment17 (2006): 3195-3206.
  8. Qian J., et al. “Estimating the resuspension rate and residence time of indoor particles”. Journal of the Air and Waste Management Association 4 (2012): 502-516.
  9. Liu C., et al. “Influence of natural ventilation rate on indoor PM2.5 deposition”. Building and Environment 144 (2018): 357-364.


Citation: Attapon Cheepsattayakorn., et al. “PM2.5, as A Potential SARS-CoV-2 (COVID-19) Carrier". Acta Scientific Microbiology 6.4 (2023): 01-03.


Copyright: © 2022 Attapon Cheepsattayakorn., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


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