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
15006excellentexcellent11excellent
14007excellentexcellent11excellent
13006excellentexcellent11excellent
12008excellentexcellent11excellent
11008excellentexcellent11excellent
100010excellentexcellent21excellent
090014goodexcellent31excellent
080020goodexcellent41excellent
070035goodexcellent51excellent
060032goodexcellent51excellent
050034goodexcellent61excellent
040033goodexcellent61excellent
030037lightly pollutedexcellent51excellent
020042lightly pollutedexcellent61excellent
010041lightly pollutedexcellent51excellent
000039lightly pollutedexcellent51excellent
230039lightly pollutedexcellent51excellent
220033goodexcellent41excellent
210018goodexcellent31excellent
200016goodexcellent21excellent
190014goodexcellent21excellent
180014goodexcellent21excellent
170012excellentexcellent21excellent
16009excellentexcellent11excellent