Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
160011excellentexcellent21excellent
150012excellentexcellent21excellent
140010excellentexcellent21excellent
130014goodexcellent31excellent
120013goodexcellent31excellent
110018goodexcellent41excellent
100032goodexcellent61excellent
090044lightly pollutedexcellent91excellent
080054lightly pollutedexcellent91excellent
070054lightly pollutedexcellent91excellent
060051lightly pollutedexcellent101excellent
050054lightly pollutedexcellent91excellent
040052lightly pollutedexcellent101excellent
030054lightly pollutedgood131excellent
020054lightly pollutedexcellent91excellent
010054lightly pollutedexcellent101excellent
000054lightly pollutedexcellent101excellent
230053lightly pollutedexcellent101excellent
220050lightly pollutedexcellent91excellent
210049lightly pollutedexcellent91excellent
200039lightly pollutedexcellent61excellent
190032goodexcellent61excellent
180022goodexcellent31excellent
170018goodexcellent41excellent