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
01005excellentexcellent11excellent
00004excellentexcellent11excellent
23006excellentexcellent11excellent
22003excellentexcellent11excellent
21003excellentexcellent11excellent
20003excellentexcellent11excellent
19003excellentexcellent11excellent
180052lightly pollutedexcellent11excellent
17003excellentexcellent11excellent
16003excellentexcellent11excellent
150070moderately pollutedexcellent11excellent
140052lightly pollutedexcellent11excellent
13009excellentexcellent11excellent
12004excellentexcellent11excellent
11006excellentexcellent11excellent
10006excellentexcellent11excellent
09006excellentexcellent11excellent
08005excellentexcellent11excellent
07004excellentexcellent11excellent
06003excellentexcellent11excellent
05005excellentexcellent11excellent
04005excellentexcellent11excellent
03004excellentexcellent11excellent
02004excellentexcellent11excellent