Monthly average concentrations of pollutants in ambient air from the permanent network of automatic measurements in the Centre-Val de Loire region

Monthly average concentrations from the fixed network of the main pollutants regulated in the air in the Centre-Val de Loire region: sulphur dioxide SO2, nitrogen monoxide NO and nitrogen dioxide NO2, suspended particulate matter PM10, suspended particulate matter PM2.5, ozone O3, benzene C6H6, carbon monoxide CO, ammonia NH3, ultrafine particles PUF. All data provided are in μg/m3 (microgram per cubic meter) except CO (mg/m3)