The indicator is a response indicator and monitors the number and qualification of monitoring stations to ensure more reliable air quality data.
The 355 stations that have been established in our country have been classified according to the standards of the European Union, both by source and by area. The preliminary air quality assessment studies conducted by our Ministry were used in the establishment of the stations.
Among the existing stations, PM10 parameters are measured in 335, PM2.5 in 165, SO2 in 302, NOX in 294, O3 in 210, and CO in 186 stations[39].
Considering the population data that are relevant for determining the number of stations to be established according to the European Union standards, the number of existing stations should be at least 350. In this regard, the number of existing stations, according to the latest status of our Ministry, is 355.
GRAPH 28- NUMBER OF AIR QUALITY MONITORING STATIONS THROUGH THE YEARS
Source: Ministry of Environment, Urbanization and Climate Change, General Directorate of EIA, Permitting and Inspection, Depart¬ment of Laboratory, Measurement and Monitoring, 2021