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]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
060014goodexcellent31excellent
050016goodexcellent31excellent
040014goodexcellent31excellent
030017goodexcellent31excellent
020016goodexcellent31excellent
010014goodexcellent31excellent
000014goodexcellent31excellent
230013goodexcellent31excellent
220010excellentexcellent21excellent
21009excellentexcellent21excellent
20007excellentexcellent21excellent
19005excellentexcellent11excellent
18004excellentexcellent11excellent
17003excellentexcellent11excellent
16008excellentexcellent21excellent
15009excellentexcellent21excellent
140012excellentexcellent31excellent
130011excellentexcellent31excellent
120016goodexcellent31excellent
110017goodexcellent31excellent
100021goodexcellent41excellent
090036goodexcellent71excellent
080055lightly pollutedexcellent111excellent
070060lightly pollutedexcellent121excellent