摘要：By stating the corona virus as an epidemic disease, all countries have made efforts to limit the spread of new types of corona virus (Covid-19). The most important of the transmission dynamics of the virus is transmission from person to person. However, a lot of research is being done on smearing due to air pollution. These studies suggest that the rapid and widespread of Covid-19 has a high relationship with air pollution. In some parts of the world, Covid-19 is known to be highly infected and cause deaths. When these regions are examined, it is seen that air pollutants are above the limit levels. In this sense, good or bad air quality supports the Covid-19 spread positively or negatively. The main aim of this study is to determine the causal relationship between the air quality of G-7 countries (USA, Germany, UK, France, Italy, Japan and Canada) and the number of Covid-19 cases. For this purpose, the basic air pollutants (NO2, O3, PM10 and PM2.5) between the dates of 31.12.2019 and 20.05.2020 and daily Covid-19 case number data are analyzed by Canning and Pedroni panel causality test. The existence of a causal relationship from the air quality of the number of corona virus cases is tested. In this context, it is observed that there is a panel causative relationship between the G-7 countries, from the air quality index to the number of corona virus cases, at a level of 5% significance. The findings obtained as a result of the hypothesis analysis used in the study were generally supported. However, it has been concluded that air quality does not cause causality on the number of corona virus cases in the G-7 countries (UK, France, Italy and Canada), except for the USA, Germany and Japan. Policy makers have an important role in protecting future.
其他关键词：Environmental Economy, Covid-19, Air Pollutants, G-7 Countries, Canning and Pedroni panel causality test.
