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
170010excellentexcellent11excellent
16008excellentexcellent11excellent
15008excellentexcellent11excellent
14008excellentexcellent11excellent
13007excellentexcellent11excellent
12009excellentexcellent11excellent
11007excellentexcellent11excellent
10008excellentexcellent21excellent
09009excellentexcellent21excellent
080015goodexcellent31excellent
070016goodexcellent31excellent
060015goodexcellent21excellent
050015goodexcellent21excellent
040018goodexcellent21excellent
030015goodexcellent21excellent
020016goodexcellent21excellent
010017goodexcellent21excellent
000017goodexcellent21excellent
230018goodexcellent21excellent
220015goodexcellent11excellent
210010excellentexcellent11excellent
20009excellentexcellent11excellent
19006excellentexcellent11excellent
18007excellentexcellent11excellent