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Consideration of Altered Anthropogenic Behavior during the First Lockdown and Its Effects on Air Pollutants and Land Surface Temperature in European Cities

Glocke, Patricia 1; Bechtel, Benjamin; Sismanidis, Panagiotis
1 Institut für Photogrammetrie und Fernerkundung (IPF), Karlsruher Institut für Technologie (KIT)

Abstract:

Substantial reductions in human and economic activities such as road traffic for several months in 2020 were one of the consequences of the Coronavirus pandemic. This unprecedented change in urban metabolism also affected temperature and air pollutants. This study investigates the effects of the first COVID-19 lockdown across 43 cities in Europe. It determines the influence of anthropogenic activities on nitrogen dioxide (NO$_2$), ozone (O$_3$), and particulate matter (PM$_{2.5}$), as well as on land surface temperature (LST) and the surface urban heat island intensity (SUHII) using satellite, modeled, and mobility data. Our findings show that there are great temporal and spatial differences and distinct patterns between the cities regarding the magnitude of change in the variables under study. In general, the results indicate a substantial decrease in NO$_2$ concentrations in most of the studied cities compared with the reference period of 2015–2019. However, reductions could not be attributed to mobility changes such as less traffic at transit stations, contrary to the results of previous studies. O$_3$ levels increased during the first lockdown in accordance with the decreasing NO$_2$ concentrations. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000161343
Veröffentlicht am 11.08.2023
Originalveröffentlichung
DOI: 10.3390/atmos14061025
Scopus
Zitationen: 2
Web of Science
Zitationen: 2
Dimensions
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Photogrammetrie und Fernerkundung (IPF)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2023
Sprache Englisch
Identifikator ISSN: 2073-4433
KITopen-ID: 1000161343
HGF-Programm 12.11.31 (POF IV, LK 01) New observational systems and cross platform integration
Erschienen in Atmosphere
Verlag MDPI
Band 14
Heft 6
Seiten Art.Nr.: 1025
Vorab online veröffentlicht am 14.06.2023
Schlagwörter air pollutants; COVID-19; lockdown; land surface temperature; road traffic
Nachgewiesen in Dimensions
Web of Science
Scopus
Globale Ziele für nachhaltige Entwicklung Ziel 3 – Gesundheit und WohlergehenZiel 11 – Nachhaltige Städte und Gemeinden
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