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2000
Volume 6, Issue 4
  • ISSN: 2666-7967
  • E-ISSN: 2666-7975

Abstract

Introduction

The efforts to reduce COVID-19 transmission could significantly affect pollution and weather in most parts of the world due to the reduction of industrial activities and road transport. Hence, this systematic review aimed to assess the effects of the COVID-19 pandemic on air pollution.

Methods

The keywords were searched in the online databases of Scopus, PubMed, Web of Science and Cochrane. We applied the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA).

Results

Generally ambient air pollutants (PM2.5, PM10, NO, NOX, NO, SO, CO, black carbon, BTX (benzene, toluene, and Xylene), NH, HCHO, PAHs, CH, Solid Waste, UFPs (Ultrafine particle, ≥115.5 nm)) decreased significantly during lockdown period due to restricted human activities. Noteworthy, controversial findings have been reported concerning O levels; most studies, especially in East Asia, reported enhancement in the levels of O, which was mainly attributed to meteorology factors. Although the COVID-19 pandemic caused a global health crisis, the improvement in worldwide air quality status was significant.

Conclusion

Generally, pollutants generated by industrial activities were observed to be significantly reduced during lockdowns.

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/content/journals/covid/10.2174/0126667975303562240625061226
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The Effects of the COVID-19 Pandemic on Air Pollution: A Systematic Review
Coronaviruses 6, E030724231565 (2025); https://doi.org/10.2174/0126667975303562240625061226
/content/journals/covid/10.2174/0126667975303562240625061226
/content/journals/covid/10.2174/0126667975303562240625061226
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  • Article Type:     Review Article
Keyword(s): Air pollution; climate change; COVID-19; economic burden; SARS-CoV-2; weather change

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