This is a status indicator that shows how often air pollution exceeds (daily) limits. An increasing number of exceedances indicates a deterioration in air quality.
In the By-law on Air Quality Assessment and Management (BAQAM), a stricter limit value with a gradual reduction for air quality parameters has been applied every year since 2009. The slightly greater reduction of the limits set in BAQAM each year and the continuous increase in the number of monitoring stations have an impact on the increase in the total number of exceedances.
The daily limit value was determined as 50 µg/m3 for the PM10 parameter and 125 µg/ m3 for the SO2 parameter in 2020. The total number of exceedances was 17601 for the PM10 parameter and 350 for the SO2 parameter in 2020 [38].
