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
160093lightly pollutedexcellent101excellent
150084lightly pollutedexcellent101excellent
140071lightly pollutedexcellent81excellent
130062lightly pollutedexcellent81excellent
120060goodexcellent71excellent
110060goodexcellent71excellent
100064lightly pollutedexcellent71excellent
090056goodexcellent61excellent
080067lightly pollutedexcellent51excellent
070066lightly pollutedexcellent61excellent
060060goodexcellent61excellent
050054goodexcellent51excellent
040065lightly pollutedexcellent51excellent
030063lightly pollutedexcellent51excellent
020081lightly pollutedexcellent51excellent
010073lightly pollutedexcellent41excellent
000072lightly pollutedexcellent51excellent
230073lightly pollutedexcellent51excellent
220076lightly pollutedexcellent61excellent
210085lightly pollutedexcellent61excellent
200090lightly pollutedexcellent81excellent
190090lightly pollutedexcellent81excellent
180091lightly pollutedexcellent81excellent
170088lightly pollutedexcellent111excellent