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
21008excellentexcellent11excellent
20008excellentexcellent11excellent
190012excellentexcellent11excellent
18006excellentexcellent11excellent
17008excellentexcellent11excellent
16006excellentexcellent11excellent
15004excellentexcellent11excellent
14006excellentexcellent11excellent
13007excellentexcellent11excellent
12009excellentexcellent11excellent
11008excellentexcellent11excellent
10006excellentexcellent11excellent
09005excellentexcellent11excellent
080010excellentexcellent11excellent
070011excellentexcellent11excellent
06008excellentexcellent11excellent
05008excellentexcellent11excellent
040014goodexcellent21excellent
030018goodexcellent21excellent
020017goodexcellent11excellent
010018goodexcellent11excellent
000026goodexcellent11excellent
230021goodexcellent31excellent
220024goodexcellent11excellent