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
12001excellentexcellent11excellent
11005excellentexcellent11excellent
10002excellentexcellent11excellent
09001excellentexcellent11excellent
08004excellentexcellent11excellent
07002excellentexcellent11excellent
06002excellentexcellent11excellent
05001excellentexcellent11excellent
04002excellentexcellent11excellent
03003excellentexcellent11excellent
02008excellentexcellent11excellent
01005excellentexcellent11excellent
00005excellentexcellent11excellent
23005excellentexcellent11excellent
22004excellentexcellent11excellent
21002excellentexcellent11excellent
20002excellentexcellent11excellent
19002excellentexcellent11excellent
18001excellentexcellent11excellent
17002excellentexcellent11excellent
16004excellentexcellent11excellent
15002excellentexcellent11excellent
14002excellentexcellent11excellent
13002excellentexcellent11excellent