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
11006excellentexcellent11excellent
10007excellentexcellent11excellent
09009excellentexcellent11excellent
080011excellentexcellent21excellent
070020goodexcellent21excellent
060011excellentexcellent21excellent
05009excellentexcellent21excellent
040010excellentexcellent21excellent
03009excellentexcellent21excellent
02009excellentexcellent11excellent
01008excellentexcellent11excellent
00007excellentexcellent11excellent
23008excellentexcellent11excellent
22007excellentexcellent11excellent
21009excellentexcellent11excellent
20005excellentexcellent11excellent
19006excellentexcellent11excellent
18006excellentexcellent11excellent
17006excellentexcellent11excellent
16006excellentexcellent11excellent
15005excellentexcellent11excellent
140029goodexcellent11excellent
13008excellentexcellent21excellent
120010excellentexcellent21excellent