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
05002excellentexcellent11excellent
04004excellentexcellent11excellent
03006excellentexcellent11excellent
020012excellentexcellent11excellent
01008excellentexcellent11excellent
00007excellentexcellent11excellent
23006excellentexcellent11excellent
22006excellentexcellent11excellent
21003excellentexcellent11excellent
20004excellentexcellent11excellent
19003excellentexcellent11excellent
18002excellentexcellent11excellent
17003excellentexcellent11excellent
16003excellentexcellent11excellent
15003excellentexcellent11excellent
14002excellentexcellent11excellent
13003excellentexcellent11excellent
120010excellentexcellent11excellent
11007excellentexcellent11excellent
100010excellentexcellent21excellent
090019excellentexcellent31excellent
080036goodexcellent51excellent
070066lightly pollutedexcellent61excellent
060055goodexcellent61excellent