The 2014 campaign for monitoring tropospheric ozone levels (Campanya de vigilància dels nivells d'ozó troposfèric a Catalunya) is done from 15th May until 15th September by the Servei de Vigilància i Control de l'Aire from the Departament de Territori i Sostenibilitat.

See the ozone forecast for today

The MAiR group of the University of Barcelona is responsible of providing the ozone forecast for Catalunya every day through the ARAMIS.cat system. The forecasts are done for today (24 hours) and tomorrow (48 hours) consisting of: an air quality zone threshold map, a table with the corresponding levels, a 1-hour maximum value ozone map and a warning map with alerts of surpassing thresholds.