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
080030goodexcellent51excellent
070023goodexcellent41excellent
060025goodexcellent61excellent
050025goodexcellent51excellent
040024goodexcellent51excellent
030029goodexcellent51excellent
020032goodexcellent71excellent
010036goodexcellent71excellent
000040lightly pollutedexcellent81excellent
230047lightly pollutedexcellent101excellent
220049lightly pollutedexcellent91excellent
210056lightly pollutedexcellent91excellent
200048lightly pollutedexcellent71excellent
190025goodexcellent41excellent
180013goodexcellent21excellent
17008excellentexcellent21excellent
16008excellentexcellent21excellent
150011excellentexcellent31excellent
140011excellentexcellent31excellent
130011excellentexcellent21excellent
120011excellentexcellent31excellent
110019goodexcellent41excellent
100036goodexcellent81excellent
090046lightly pollutedexcellent81excellent