Another smoggy day, another day of free public transport in Krakow

For the second day this week, public transportation is free for all riders in Krakow owing to extreme levels of smog.
According to smog monitoring service Airly, levels of PM10 and PM2.5 (types of particulate matter which make up smog) are both around 200% of recommended safe limits. Outdoor athletic activities are discouraged, and if you must go outside, wearing a smog mask is recommended.
Read more about Krakow’s endemic smog problem, how you can protect yourself, and what locals are doing to try to fight it.
If you have to stay indoors, here’s a bit of purity. Dedicated to Dewey Gurall’s family with Christmas wishes.
https://www.youtube.com/watch?v=p4nwGfK2i_M