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
030025goodexcellent41excellent
020031goodexcellent41excellent
010032goodexcellent51excellent
000032goodexcellent41excellent
230034goodexcellent41excellent
220030goodexcellent31excellent
210020goodexcellent31excellent
200017goodexcellent31excellent
190015goodexcellent31excellent
18008excellentexcellent11excellent
17007excellentexcellent11excellent
16006excellentexcellent11excellent
15006excellentexcellent11excellent
14007excellentexcellent11excellent
13006excellentexcellent11excellent
12008excellentexcellent11excellent
11008excellentexcellent11excellent
100010excellentexcellent21excellent
090014goodexcellent31excellent
080020goodexcellent41excellent
070035goodexcellent51excellent
060032goodexcellent51excellent
050034goodexcellent61excellent
040033goodexcellent61excellent