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
07006excellentexcellent11excellent
06006excellentexcellent11excellent
05006excellentexcellent11excellent
04005excellentexcellent11excellent
03005excellentexcellent11excellent
02004excellentexcellent11excellent
01004excellentexcellent11excellent
00004excellentexcellent11excellent
23006excellentexcellent11excellent
22006excellentexcellent21excellent
21003excellentexcellent21excellent
20004excellentexcellent11excellent
19005excellentexcellent11excellent
18005excellentexcellent11excellent
17005excellentexcellent11excellent
16005excellentexcellent11excellent
15007excellentexcellent11excellent
14005excellentexcellent11excellent
130013goodexcellent11excellent
12008excellentexcellent21excellent
11009excellentexcellent21excellent
10008excellentexcellent21excellent
09008excellentexcellent21excellent
080010excellentexcellent31excellent