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داده های کیفیت هوا ارائه شده توسط: the La Surveillance de l’Air en Limousin (limair.asso.fr)
Note that the measurements for PM10 (respirable particulate matter), NO2 (nitrogen dioxide) and SO2 (sulfur dioxide) are taken from the station: Ipaper, Saillat s. Vienne and the measurement for O3 (ozone) are taken from the station: Présidial, Limoges