Sokağa Çıkma Yasaklarının Kentlerin Hava Kalitesi Üzerindeki Etkisi, İzmir Örneği.

This study was carried out to determine how the PM10 concentrations changed in the Izmir metropolitan area during the days when curfews were imposed because of Covid-19 Pandemic. In this context, data of eight air quality measurement stations were taken as basis. Within the scope of the study, days when curfew was strictly imposed were compared with other days, specifically between January 1, 2020 and July 31, 2020. Besides, by comparing daily measures taken between 2015-2020 on same days, it has been tried to determine how air quality has changed on an annual basis. While analyzing, Independent Sample t-test was used for daily data. For annual data, Friedman test was used to determine which stations had a statistically significant difference, and then Wilcoxon test was applied to determine in which years there was a statistically significant difference compared to 2020 measurements. All in all, it was found that there was an improvement in air quality in terms of PM10 concentrations on the days of curfew. This study revealed that our daily mobility in the city as urban dwellers negatively affect air quality of environment we live in, and showed the need to consider air pollution when planning our cities. [ABSTRACT FROM AUTHOR]