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
13008excellentexcellent11excellent
120014goodexcellent21excellent
110016goodexcellent31excellent
100020goodexcellent41excellent
090031goodexcellent61excellent
080041lightly pollutedexcellent61excellent
070040lightly pollutedexcellent31excellent
060032goodexcellent21excellent
050026goodexcellent21excellent
040022goodexcellent21excellent
030022goodexcellent21excellent
020015goodexcellent11excellent
010013goodexcellent11excellent
00008excellentexcellent11excellent
23007excellentexcellent11excellent
22007excellentexcellent11excellent
21007excellentexcellent11excellent
20006excellentexcellent11excellent
19007excellentexcellent11excellent
18008excellentexcellent11excellent
17006excellentexcellent11excellent
16005excellentexcellent11excellent
15008excellentexcellent11excellent
14007excellentexcellent11excellent