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
170036goodexcellent71excellent
160030goodexcellent71excellent
150033goodexcellent61excellent
140029goodexcellent71excellent
130030goodexcellent51excellent
120021goodexcellent41excellent
110028goodexcellent51excellent
100025goodexcellent41excellent
090014goodexcellent31excellent
080017goodexcellent21excellent
070026goodexcellent41excellent
060038lightly pollutedexcellent51excellent
050035goodexcellent61excellent
040037lightly pollutedexcellent61excellent
030035goodexcellent61excellent
020040lightly pollutedexcellent71excellent
010041lightly pollutedexcellent71excellent
000041lightly pollutedexcellent71excellent
230037lightly pollutedexcellent71excellent
220039lightly pollutedexcellent61excellent
210037lightly pollutedexcellent51excellent
200023goodexcellent41excellent
190024goodexcellent51excellent
180024goodexcellent51excellent