The Pollumeter of the Brussels Capital Region follows the evolution of the air quality. The overall index is calculated on the basis of measurements at all places for oxygen (O3), nitrogen dioxide (NO2), sulfur dioxide (SO2) and particulate matter (PM10): www.ibgebim.be/Pollumetre/dynamic_index.txt.
Bruxelles Environnement - Leefmilieu Brussel requests to periodically retrieve the data (at 35 past the hour), and not to search each time at a web page with the Pollumeter.
The following JSON object is a standardized description of your dataset's schema. More about JSON schema.