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
2200107moderately pollutedexcellent51excellent
2100109moderately pollutedexcellent51excellent
2000108moderately pollutedexcellent101excellent
1900112moderately pollutedexcellent101excellent
1800105moderately pollutedexcellent91excellent
170096lightly pollutedexcellent91excellent
1600104moderately pollutedexcellent111excellent
1500122moderately pollutedexcellent141excellent
1400109moderately pollutedexcellent121excellent
1300100lightly pollutedexcellent121excellent
120099lightly pollutedexcellent121excellent
1100110moderately pollutedexcellent101excellent
1000113moderately pollutedexcellent91excellent
0900113moderately pollutedexcellent71excellent
0800120moderately pollutedexcellent81excellent
0700144heavily pollutedexcellent81excellent
0600139moderately pollutedexcellent91excellent
0500123moderately pollutedexcellent91excellent
0400106moderately pollutedexcellent81excellent
0300111moderately pollutedexcellent81excellent
0200105moderately pollutedexcellent71excellent
0100104moderately pollutedexcellent61excellent
0000115moderately pollutedexcellent61excellent
230090lightly pollutedexcellent61excellent