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
10006excellentexcellent11excellent
09006excellentexcellent11excellent
08006excellentexcellent11excellent
07006excellentexcellent11excellent
060010excellentexcellent11excellent
05006excellentexcellent11excellent
04006excellentexcellent11excellent
03007excellentexcellent11excellent
02006excellentexcellent11excellent
01006excellentexcellent11excellent
00008excellentexcellent11excellent
23007excellentexcellent11excellent
22007excellentexcellent11excellent
21004excellentexcellent11excellent
20003excellentexcellent11excellent
19003excellentexcellent11excellent
18001excellentexcellent11excellent
17003excellentexcellent11excellent
16002excellentexcellent11excellent
15002excellentexcellent11excellent
14002excellentexcellent11excellent
13002excellentexcellent11excellent
12002excellentexcellent11excellent
11002excellentexcellent11excellent