Annual mean nitrogen dioxide 2012, based on daily average with percentage of valid measurements ≥ 75 % in µg/m³ (0)
 ≤ 20 
 20 – ≤ 30 
 30 – ≤ 40 
 40 – ≤ 50 
 > 50 
Annual mean nickel 2012, based on annual average with percentage of valid measurements ≥ 14 % in µg/m³ (1)
 ≤ 5 
 5 – 10 
 10 – 20 
 20 – 30 
 > 30 
Annual mean arsenic 2012, based on annual average with percentage of valid measurements ≥ 14 % in µg/m³ (2)
 ≤ 1 
 1 – 3 
 3 – 6 
 6 – 9 
 > 9 
Annual mean cadmium 2012, based on annual average with percentage of valid measurements ≥ 14 % in µg/m³ (3)
 ≤ 1 
 1 – 2 
 2 – 5 
 5 – 8 
 > 8 
Annual mean lead 2012, based on annual average with percentage of valid measurements ≥ 14 % in µg/m³ (4)
 ≤ 0.02 
 0.02 – 0.10 
 0.10 – 0.50 
 0.50 – 1.00 
 > 1.00 
Annual mean benzo(a)pyrene 2012, based on annual average with percentage of valid measurements ≥ 14 % in µg/m³ (5)
 ≤ 0.12 
 0.12 – 0.40 
 0.40 – 0.60 
 0.60 – 1.00 
 > 1.00 
93.2 percentile of ozone concentration in 2012, based on daily running 8h max with percentage of valid measurements ≥ 75 % in µg/m³ (6)
 ≤ 80 
 80 – 100 
 100 – 120 
 120 – 140 
 > 140 
Annual mean ozone 2012, based on daily running 8h max with percentage of valid measurements ≥ 75 % in µg/m³ (7)
 ≤ 60 
 60 – 80 
 80 – 100 
 > 100 
Annual mean benzene 2012, based on annual average with percentage of valid measurements ≥ 50 % in µg/m³ (8)
 ≤ 1.7 
 1.7 – 2.0 
 2.0 – 3.5 
 3.5 – 5.0 
 > 5.0 
Annual mean carbon monoxide 2012, based on daily running 8h max with percentage of valid measurements ≥ 75 % in µg/m³ (9)
 ≤ 0.5 
 0.5 – 1.0 
 1.0 – 2.0 
 2.0 – 2.5 
 > 2.5 
Annual mean particulate matter < 2.5 µm (aerosol) 2012, based on daily average with percentage of valid measurements ≥ 75 % in µg/m³ (10)
 ≤ 10 
 10 – 20 
 20 – 25 
 25 – 30 
 > 30 
90.4 percentile of particulate matter < 10 µm (aerosol) concentration in 2012, based on daily average with percentage of valid measurements ≥ 75 % in µg/m³ (11)
 ≤ 20 
 20 – 40 
 40 – 50 
 50 – 75 
 >75 
Annual mean particulate matter < 10 µm (aerosol) 2012, based on daily average with percentage of valid measurements ≥ 75 % in µg/m³ (12)
 ≤ 20 
 20 – 31 
 31 – 40 
 40 – 50 
 > 50 
Annual mean sulphur dioxide 2012, based on daily average with percentage of valid measurements ≥ 75 % in µg/m³ (13)
 ≤ 5 
 5 – 10 
 10 – 20 
 20 – 25 
 > 25 
