Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
020014goodexcellent11excellent
01008excellentexcellent11excellent
00006excellentexcellent11excellent
23006excellentexcellent11excellent
22008excellentexcellent11excellent
21004excellentexcellent11excellent
20002excellentexcellent11excellent
19002excellentexcellent11excellent
180051lightly pollutedexcellent11excellent
170054lightly pollutedexcellent11excellent
1600103heavily pollutedexcellent11excellent
150095heavily pollutedexcellent11excellent
140081moderately pollutedexcellent11excellent
13005excellentexcellent11excellent
1200101heavily pollutedexcellent11excellent
110037lightly pollutedexcellent11excellent
100015goodexcellent11excellent
09006excellentexcellent11excellent
08005excellentexcellent11excellent
07005excellentexcellent11excellent
06005excellentexcellent11excellent
05008excellentexcellent11excellent
04006excellentexcellent11excellent
03007excellentexcellent11excellent