Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
00008excellentexcellent11excellent
23008excellentexcellent11excellent
22008excellentexcellent11excellent
21008excellentexcellent11excellent
20008excellentexcellent11excellent
19008excellentexcellent11excellent
18008excellentexcellent11excellent
17008excellentexcellent11excellent
16008excellentexcellent11excellent
15008excellentexcellent11excellent
14008excellentexcellent11excellent
13008excellentexcellent11excellent
12008excellentexcellent11excellent
11007excellentexcellent11excellent
10005excellentexcellent11excellent
09005excellentexcellent11excellent
08005excellentexcellent11excellent
07005excellentexcellent11excellent
06005excellentexcellent11excellent
05005excellentexcellent11excellent
04005excellentexcellent11excellent
03005excellentexcellent21excellent
02005excellentexcellent21excellent
01005excellentexcellent21excellent