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
12006excellentexcellent21excellent
11008excellentexcellent21excellent
100011excellentexcellent21excellent
090011excellentexcellent21excellent
080015goodexcellent21excellent
070019goodexcellent21excellent
060018goodexcellent21excellent
050017goodexcellent21excellent
040015goodexcellent21excellent
030012excellentexcellent21excellent
020013goodexcellent31excellent
010013goodexcellent31excellent
000015goodexcellent31excellent
230020goodexcellent41excellent
220019goodexcellent31excellent
210015goodexcellent21excellent
200013goodexcellent21excellent
19008excellentexcellent11excellent
18006excellentexcellent11excellent
17006excellentexcellent11excellent
16006excellentexcellent11excellent
15007excellentexcellent11excellent
14008excellentexcellent21excellent
130015goodexcellent31excellent