ការព្យាករណ៍គុណភាពខ្យល់

ទិន្នន័យគុណភាពខ្យល់ផ្តល់ដោយ៖ the Air Pays de la Loire (airpl.org)
Note that the measurement for O3 (ozone) are taken from the station: Victor Hugo, Nantes, Loire and the measurement for SO2 (sulfur dioxide) are taken from the station: S Etienne de Montluc, la Basse-Loire, Loire






