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
230023goodexcellent31excellent
220022goodexcellent41excellent
210016goodexcellent21excellent
200011excellentexcellent11excellent
19005excellentexcellent11excellent
18005excellentexcellent11excellent
17004excellentexcellent11excellent
16004excellentexcellent11excellent
15005excellentexcellent11excellent
14006excellentexcellent11excellent
13007excellentexcellent11excellent
12005excellentexcellent11excellent
11004excellentexcellent11excellent
10006excellentexcellent11excellent
09007excellentexcellent21excellent
08009excellentexcellent21excellent
070015goodexcellent31excellent
060015goodexcellent31excellent
05009excellentexcellent21excellent
04008excellentexcellent11excellent
030056lightly pollutedexcellent11excellent
02009excellentexcellent11excellent
01009excellentexcellent11excellent
00008excellentexcellent11excellent