بيانات جودة الهواء مقدمة من: Atmo Hauts de Frane - Qualité de l'air en Picardie (Somme, Aisne, Oise) (atmo-hdf.fr)
Note that the measurements for PM2.5 (fine particulate matter) and NO2 (nitrogen dioxide) are taken from the station: Traf Saint Quent 14, Picardie