@hazelnot @IngaLovinde @meena @schratze @vfrmedia

Many factors impact pollution in the town - for example, if it's in a valley it will have worse ventilation, and thus worse pollution that similar town on plains. My home town of Kraków is a very good example of such unfortunate location. Also, this might be just the location of the air quality sensor - if it's in town outskirts, it will certainly show better air than in the center.