I spent some time in Krakow and it has horrible air quality. Summer feels normal like any other city, but certain times during the winter it's difficult to see

I spent some time in Krakow and it has horrible air quality. Summer feels normal like any other city, but certain times during the winter it's difficult to see due to the smog. See the below video for reference. https://www.youtube.com/watch?v=x7nxugvTmJo https://www.youtube.com/watch?v=x7nxugvTmJo