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
210061lightly pollutedexcellent81excellent
200041goodexcellent61excellent
190042goodexcellent91excellent
180042goodexcellent81excellent
170043goodexcellent71excellent
160036goodexcellent51excellent
150031goodexcellent51excellent
140028goodexcellent61excellent
130033goodexcellent71excellent
120037goodexcellent81excellent
110057goodexcellent101excellent
100076lightly pollutedexcellent111excellent
090098lightly pollutedexcellent141excellent
0800101moderately pollutedexcellent131excellent
0700115moderately pollutedexcellent121excellent
0600124moderately pollutedexcellent111excellent
0500101moderately pollutedexcellent131excellent
040086lightly pollutedexcellent121excellent
030088lightly pollutedexcellent121excellent
020091lightly pollutedexcellent131excellent
010084lightly pollutedexcellent121excellent
000091lightly pollutedexcellent121excellent
230079lightly pollutedexcellent121excellent
220068lightly pollutedexcellent101excellent