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
17009excellentexcellent11excellent
16006excellentexcellent11excellent
15004excellentexcellent11excellent
14003excellentexcellent11excellent
13003excellentexcellent11excellent
12002excellentexcellent11excellent
11002excellentexcellent11excellent
10003excellentexcellent11excellent
09005excellentexcellent11excellent
080013goodexcellent11excellent
070013goodexcellent11excellent
060010excellentexcellent11excellent
05004excellentexcellent11excellent
04003excellentexcellent11excellent
03003excellentexcellent11excellent
020037lightly pollutedexcellent21excellent
010045lightly pollutedexcellent11excellent
00005excellentexcellent11excellent
230030goodexcellent21excellent
220020goodexcellent31excellent
210017goodexcellent31excellent
200017goodexcellent31excellent
190022goodexcellent41excellent
180020goodexcellent31excellent