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
140099lightly pollutedexcellent141excellent
130086lightly pollutedexcellent131excellent
120088lightly pollutedexcellent121excellent
110093lightly pollutedexcellent131excellent
1000100lightly pollutedexcellent131excellent
0900108moderately pollutedexcellent141excellent
0800139moderately pollutedexcellent171excellent
0700135moderately pollutedexcellent161excellent
0600122moderately pollutedexcellent151excellent
0500104moderately pollutedexcellent141excellent
0400113moderately pollutedexcellent151excellent
0300100lightly pollutedexcellent131excellent
020098lightly pollutedexcellent141excellent
010097lightly pollutedexcellent151excellent
000091lightly pollutedexcellent161excellent
230082lightly pollutedexcellent151excellent
220084lightly pollutedexcellent151excellent
210087lightly pollutedexcellent151excellent
200087lightly pollutedexcellent151excellent
190087lightly pollutedexcellent141excellent
180086lightly pollutedexcellent121excellent
170088lightly pollutedexcellent111excellent
160086lightly pollutedexcellent111excellent
150091lightly pollutedexcellent121excellent