The Effects of COVID-19 Measures on Air Pollutant Concentrations at Urban and Traffic Sites in Istanbul

Autor: Ülkü Alver Şahin
Přispěvatelé: İÜC, Mühendislik Fakültesi, Çevre Mühendisliği Bölümü, Sahin, Ulku Alver
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Popis: WOS:000579517600004 Since December 2019, most countries have been working to stop the spread of SARS-CoV-2, the virus responsible for COVID-19. These measures, which include restricting movement, have environmental consequences. This study assessed the impact of COVID-19 measures on air pollutant concentrations measured in urban areas and traffic stations on both the European and Asian sides of Istanbul during March 2020. Significant reductions in pollutants: 32-43% (PM10), 19-47% (PM2.5), 29-44% (NO2), 40-58% (CO) and 34-69% (SO2) were calculated. The clearest reductions at the traffic stations were in NO2 which originates primarily from vehicle exhaust. The reduction of NO2 at the traffic station on the European side was found higher comparing the Asian side. The average concentrations of NO2, PM2.5, PM10 and CO during peak traffic hours were significantly (p < 0.01) decreased under COVID-19 measures. The results indicate that due to the measures taken in Istanbul and across Turkey and to control the spread of the virus, anthropogenic activities such as industry, vehicle traffic and sea transport have decreased, and consequently, air pollution has been significantly reduced. These pollutant levels demonstrate the anthropogenic contribution to air pollution and can inform clean air actions in Istanbul and in others cities throughout the world. Scientific and Technical Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [1059B191801445]; Research Fund of the University of Istanbul-Cerrahpasa [25819, 27174] This research has been supported by the Scientific and Technical Research Council of Turkey (TUBITAK) (grant number 1059B191801445), the Research Fund of the University of Istanbul-Cerrahpasa (grant numbers 25819 and 27174). The author thanks the Department of Environmental Protection and Control and the Istanbul Statistical Office of the Istanbul Metropolitan Municipality for their support in providing data on air pollutants, meteorological data and other statistics for Istanbul. The manuscript was edited for proper English language, grammar, punctuation, spelling, and overall style by one or more of the highly qualified native English speaking editors at ACS (the verification code F927-021A-8E1D-B7D7-DF73). Furthermore the author thanks Dr. Surindar Kishen Dhesi, Lecturer in Environmental Health and Risk Management, in the School of Geography, Earth and Environmental Sciences, University of Birmingham, UK to edit the manuscript to improve the English.
Databáze: OpenAIRE