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
00003excellentexcellent11excellent
23005excellentexcellent11excellent
22003excellentexcellent11excellent
21002excellentexcellent11excellent
20002excellentexcellent11excellent
190018goodexcellent11excellent
18002excellentexcellent11excellent
17002excellentexcellent11excellent
16003excellentexcellent11excellent
150059lightly pollutedexcellent11excellent
14004excellentexcellent11excellent
130017goodexcellent11excellent
12006excellentexcellent11excellent
11006excellentexcellent11excellent
10007excellentexcellent11excellent
09009excellentexcellent11excellent
080011excellentexcellent21excellent
070020goodexcellent21excellent
060011excellentexcellent21excellent
05009excellentexcellent21excellent
040010excellentexcellent21excellent
03009excellentexcellent21excellent
02009excellentexcellent11excellent
01008excellentexcellent11excellent