Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
19002excellentexcellent11excellent
18003excellentexcellent11excellent
170029goodexcellent11excellent
16005excellentexcellent11excellent
15004excellentexcellent11excellent
140030goodexcellent11excellent
13008excellentexcellent11excellent
120082lightly pollutedexcellent11excellent
110036goodexcellent11excellent
100091lightly pollutedexcellent11excellent
090078lightly pollutedexcellent11excellent
080078lightly pollutedexcellent11excellent
07008excellentexcellent11excellent
06004excellentexcellent11excellent
05004excellentexcellent11excellent
04005excellentexcellent11excellent
030065lightly pollutedexcellent11excellent
02006excellentexcellent11excellent
01006excellentexcellent11excellent
00006excellentexcellent11excellent
23004excellentexcellent11excellent
22003excellentexcellent11excellent
21003excellentexcellent11excellent
20002excellentexcellent11excellent