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
190053goodexcellent81excellent
180042goodexcellent51excellent
170032goodexcellent61excellent
160030goodexcellent51excellent
150027goodexcellent41excellent
140027goodexcellent41excellent
130031goodexcellent51excellent
120041goodexcellent71excellent
110037goodexcellent61excellent
100046goodexcellent101excellent
090082lightly pollutedexcellent141excellent
0800104moderately pollutedexcellent141excellent
0700102moderately pollutedexcellent151excellent
060098lightly pollutedexcellent141excellent
050089lightly pollutedexcellent141excellent
040098lightly pollutedexcellent151excellent
030095lightly pollutedexcellent141excellent
020096lightly pollutedexcellent141excellent
010098lightly pollutedexcellent141excellent
0000101moderately pollutedexcellent161excellent
230089lightly pollutedexcellent141excellent
220084lightly pollutedexcellent141excellent
210085lightly pollutedexcellent131excellent
200066lightly pollutedexcellent91excellent