ទិន្នន័យគុណភាពខ្យល់ផ្តល់ដោយ៖ ATMO-PC- La qualité de l’air en Poitou-Charentes (atmo-poitou-charentes.org)
Note that the measurements for PM10 (respirable particulate matter) and NO2 (nitrogen dioxide) are taken from the station: Niort Trafic, PoitouCharentes