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
020030goodexcellent21excellent
010030goodexcellent21excellent
000023goodexcellent21excellent
230022goodexcellent21excellent
220018goodexcellent21excellent
210013goodexcellent11excellent
20009excellentexcellent11excellent
19009excellentexcellent11excellent
18006excellentexcellent11excellent
17005excellentexcellent11excellent
16004excellentexcellent11excellent
15005excellentexcellent11excellent
14005excellentexcellent11excellent
13004excellentexcellent11excellent
12004excellentexcellent11excellent
11007excellentexcellent21excellent
100012excellentexcellent31excellent
090019goodexcellent41excellent
080027goodexcellent41excellent
070030goodexcellent41excellent
060040lightly pollutedexcellent31excellent
050044lightly pollutedexcellent21excellent
040030goodexcellent21excellent
030020goodexcellent21excellent