Special Issue on COVID-18 Aerosol Drivers, Impacts and Mitigation (V)

Wei Du, Gehui Wang This email address is being protected from spambots. You need JavaScript enabled to view it.

Key Laboratory of Geographic Information Science of the Ministry of Education, School of Geographic Sciences, East China Normal University, Shanghai 200241, China


Received: June 5, 2020
Revised: August 2, 2020
Accepted: August 9, 2020

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.4209/aaqr.2020.06.0281  

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Cite this article:

Du, W. and Wang, G. (2020). Indoor Air Pollution was Nonnegligible during COVID-19 Lockdown. Aerosol Air Qual. Res. 20: 1851–1855. https://doi.org/10.4209/aaqr.2020.06.0281


  • Indoor air pollution played a more important role during the COVID-19 lockdown.
  • COVID-19 lockdown might fail to save people by only improving the ambient air quality.
  • Impact of indoor air pollution on human health during lockdown should be paid more attention.


COVID-19 spread globally in the past months and caused hundreds of thousands of people dead. Many countries took lockdown policy to restrict human activities and industry to slow down the virus spread. The implementation of stringent lockdown resulted in less traffic and industrial emissions, thus reduction of various ambient air pollutants were observed in urban areas. Considering people stayed longer time in indoor, the indoor air pollution (IAP) might play a more important role for human health during lockdown. People suffered from high possibility of IAP exposure risk increase during lockdown as they almost stayed at home the whole day. Unfortunately, available studies on IAP and its health impact during this period were rare compared with those on ambient air. By this, more investigations should be performed to estimate the impact of global COVID-19 lockdown on human health in the future.

Keywords: COVID-19; Lockdown; Indoor air pollution.

Aerosol Air Qual. Res. 20 :1851 -1855 . https://doi.org/10.4209/aaqr.2020.06.0281  

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