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
100012excellentexcellent11excellent
09007excellentexcellent11excellent
08006excellentexcellent11excellent
07008excellentexcellent11excellent
06007excellentexcellent11excellent
05008excellentexcellent11excellent
04007excellentexcellent11excellent
03008excellentexcellent21excellent
020010excellentexcellent21excellent
01009excellentexcellent11excellent
000011excellentexcellent11excellent
23008excellentexcellent11excellent
22005excellentexcellent11excellent
21004excellentexcellent11excellent
20003excellentexcellent11excellent
19002excellentexcellent11excellent
18002excellentexcellent11excellent
17005excellentexcellent11excellent
16004excellentexcellent11excellent
150068moderately pollutedexcellent11excellent
14004excellentexcellent11excellent
13005excellentexcellent11excellent
120015goodexcellent11excellent
11003excellentexcellent11excellent