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
20005excellentexcellent11excellent
19004excellentexcellent11excellent
18002excellentexcellent11excellent
17002excellentexcellent11excellent
16004excellentexcellent11excellent
15002excellentexcellent11excellent
14001excellentexcellent11excellent
13004excellentexcellent11excellent
12002excellentexcellent11excellent
11002excellentexcellent11excellent
10002excellentexcellent11excellent
09005excellentexcellent11excellent
08005excellentexcellent11excellent
07006excellentexcellent11excellent
06006excellentexcellent11excellent
05006excellentexcellent11excellent
040012excellentexcellent11excellent
030011excellentexcellent11excellent
020015goodexcellent11excellent
010012excellentexcellent21excellent
000010excellentexcellent21excellent
230011excellentexcellent11excellent
22009excellentexcellent11excellent
21009excellentexcellent11excellent