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
1900112moderately pollutedexcellent191excellent
1800106moderately pollutedexcellent181excellent
1700104moderately pollutedexcellent191excellent
160092lightly pollutedexcellent181excellent
150067lightly pollutedexcellent191excellent
140091lightly pollutedexcellent181excellent
130094lightly pollutedexcellent181excellent
120074lightly pollutedexcellent171excellent
110076lightly pollutedexcellent151excellent
100055goodexcellent141excellent
090057goodexcellent151excellent
080060goodexcellent141excellent
070060goodexcellent131excellent
060056goodexcellent131excellent
050051goodexcellent131excellent
040060goodexcellent131excellent
030036goodexcellent131excellent
020077lightly pollutedexcellent151excellent
010085lightly pollutedexcellent131excellent
000059goodexcellent141excellent
230066lightly pollutedexcellent141excellent
220071lightly pollutedexcellent131excellent
210061lightly pollutedexcellent131excellent
200043goodexcellent101excellent