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
060089lightly pollutedexcellent91excellent
050087lightly pollutedexcellent101excellent
040094lightly pollutedexcellent91excellent
030090lightly pollutedexcellent101excellent
020093lightly pollutedexcellent101excellent
010099lightly pollutedexcellent101excellent
000090lightly pollutedexcellent131excellent
230096lightly pollutedexcellent141excellent
220089lightly pollutedexcellent131excellent
210075lightly pollutedexcellent91excellent
200060goodexcellent81excellent
190044goodexcellent61excellent
180037goodexcellent51excellent
170035goodexcellent51excellent
160046goodexcellent81excellent
150046goodexcellent61excellent
140042goodexcellent71excellent
130066lightly pollutedexcellent91excellent
120088lightly pollutedexcellent112excellent
110083lightly pollutedexcellent122excellent
100096lightly pollutedexcellent132excellent
0900120moderately pollutedexcellent151excellent
0800155heavily pollutedexcellent141excellent
0700134moderately pollutedexcellent71excellent