Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
230064lightly pollutedexcellent101excellent
220049goodexcellent101excellent
210077lightly pollutedexcellent121excellent
200083lightly pollutedexcellent111excellent
190091lightly pollutedexcellent111excellent
1800122moderately pollutedexcellent91excellent
170071lightly pollutedexcellent91excellent
160060goodexcellent91excellent
150064lightly pollutedexcellent81excellent
140056goodexcellent91excellent
130057goodexcellent71excellent
120038goodexcellent51excellent
110053goodexcellent71excellent
100047goodexcellent61excellent
090027goodexcellent31excellent
080031goodexcellent21excellent
070049goodexcellent61excellent
060070lightly pollutedexcellent81excellent
050063lightly pollutedexcellent91excellent
040067lightly pollutedexcellent81excellent
030062lightly pollutedexcellent91excellent
020073lightly pollutedexcellent101excellent
010078lightly pollutedexcellent91excellent
000076lightly pollutedexcellent111excellent