I am considering relocating to Krakow, but quite concerned about air pollution.
According to World Health Organisation, Krakow is "Third Most Polluted City" in the EU (the other two are also located close by). The more you dig, the worse it looks. According to Bankwatch, it is usually polluted with regular CO2, but during winter concentration of benzo(a)pyrene, goes over 10,2ng/m3. A safe amount is 1, and most of the wester Europe city has it well under it. For example, Berlin is 0,7 ng/m3.
There are numerous posts in Polish about the smog that covers the winter since people burn coal to heat up the houses. Statistical data from various sensors for the past 2 years shows the same picture.
What is your experience? How bad is it compared to the city you are coming from?