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
010015goodexcellent21excellent
000041lightly pollutedexcellent31excellent
230040lightly pollutedexcellent31excellent
220029goodexcellent11excellent
21009excellentexcellent11excellent
20008excellentexcellent11excellent
19008excellentexcellent11excellent
18005excellentexcellent11excellent
17005excellentexcellent21excellent
160013goodexcellent21excellent
150013goodexcellent21excellent
140010excellentexcellent11excellent
13008excellentexcellent11excellent
12007excellentexcellent11excellent
11005excellentexcellent11excellent
10007excellentexcellent21excellent
090010excellentexcellent21excellent
080013goodexcellent21excellent
070010excellentexcellent11excellent
06008excellentexcellent11excellent
05007excellentexcellent11excellent
04008excellentexcellent11excellent
03005excellentexcellent11excellent
02006excellentexcellent11excellent