PM 2.5
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]
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
19002excellentexcellent11excellent
18004excellentexcellent11excellent
17004excellentexcellent11excellent
16005excellentexcellent11excellent
15005excellentexcellent11excellent
14007excellentexcellent11excellent
13006excellentexcellent11excellent
12005excellentexcellent11excellent
11005excellentexcellent11excellent
10004excellentexcellent11excellent
09005excellentexcellent11excellent
08006excellentexcellent21excellent
070014goodexcellent31excellent
060020goodexcellent11excellent
050020goodexcellent11excellent
040021goodexcellent11excellent
030020goodexcellent21excellent
020013goodexcellent21excellent
010011excellentexcellent11excellent
00009excellentexcellent11excellent
23006excellentexcellent11excellent
22006excellentexcellent11excellent
21003excellentexcellent11excellent
20004excellentexcellent11excellent