Global air quality and covid-19 pandemic: Do we breathe cleaner air?

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dc.authorscopusid57195095571
dc.authorscopusid59264021600
dc.authorscopusid57222568070
dc.authorscopusid57222571638
dc.authorscopusid57222574388
dc.authorscopusid57222576832
dc.authorscopusid57209583115
dc.contributor.authorTorkmahalleh, Mehdi Amouei
dc.contributor.authorAkhmetvaliyeva, Zarina
dc.contributor.authorOmran, Ali Darvishi
dc.contributor.authorOmran, Faezeh Darvish
dc.contributor.authorKazemitabar, Mohadeseh
dc.contributor.authorNaseri, Mahtab
dc.contributor.authorNaseri, Motahareh
dc.date.accessioned2024-09-25T19:44:20Z
dc.date.available2024-09-25T19:44:20Z
dc.date.issued2021
dc.departmentAbant İzzet Baysal Üniversitesien_US
dc.description.abstractThe global spread of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has challenged most countries worldwide. It was quickly recognized that reduced activities (lockdowns) during the Coronavirus Disease of 2019 (COVID-19) pandemic produced major changes in air quality. Our objective was to assess the impacts of COVID-19 lockdowns on ground-level PM2.5, NO2, and O3 concentrations on a global scale. We obtained data from 34 countries, 141 cities, and 458 air monitoring stations on 5 continents (few data from Africa). On a global average basis, a 34.0% reduction in NO2 concentration and a 15.0% reduction in PM2.5 were estimated during the strict lockdown period (until April 30, 2020). Global average O3 concentration increased by 86.0% during this same period. Individual country and continent-wise comparisons have been made between lockdown and business-as-usual periods. Universally, NO2 was the pollutant most affected by the COVID-19 pandemic. These effects were likely because its emissions were from sources that were typically restricted (i.e., surface traffic and non-essential industries) by the lockdowns and its short lifetime in the atmosphere. Our results indicate that lockdown measures and resulting reduced emissions reduced exposure to most harmful pollutants and could provide global-scale health benefits. However, the increased O3 may have substantially reduced those benefits and more detailed health assessments are required to accurately quantify the health gains. At the same, these restrictions were obtained at substantial economic costs and with other health issues (depression, suicide, spousal abuse, drug overdoses, etc.). Thus, any similar reductions in air pollution would need to be obtained without these extensive economic and other consequences produced by the imposed activity reductions. © The Author(s).en_US
dc.description.sponsorshipNazarbayev University, NU, (091019CRP2104); Nazarbayev University, NUen_US
dc.identifier.doi10.4209/aaqr.200567
dc.identifier.issn1680-8584
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-85103255938en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.4209/aaqr.200567
dc.identifier.urihttps://hdl.handle.net/20.500.12491/12765
dc.identifier.volume21en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAAGR Aerosol and Air Quality Researchen_US
dc.relation.ispartofAerosol and Air Quality Researchen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmzYK_20240925en_US
dc.subjectCOVID-19 pandemicen_US
dc.subjectGlobal air qualityen_US
dc.subjectNO2en_US
dc.subjectO3en_US
dc.subjectPM2.5en_US
dc.subjectSARS-CoV-2en_US
dc.titleGlobal air quality and covid-19 pandemic: Do we breathe cleaner air?en_US
dc.typeArticleen_US

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