In my city (Almeria, Spain) there are two stations that measure the local Air Quality.
Let’s analyze them and see if they are located in the correct places and if they feature the necessary instruments for measuring the AQI properly.
It is located in “El Boticario” a park 10km outside of the city center. The coordinates according to an official document from“Junta de Andalucía” are UTMX:554439 and UTMY:4080272, but they aren’t correct (Not so professional). The real coordinates are UTMX:554319 and UTMY:4080066. This station seems to work well although they don’t feed the data in real time to the public and quite often is down.