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
100055lightly pollutedgood141excellent
090054lightly pollutedgood141excellent
080065moderately pollutedgood141excellent
070076moderately pollutedgood141excellent
060073moderately pollutedgood141excellent
050066moderately pollutedgood141excellent
040064moderately pollutedgood131excellent
030064moderately pollutedgood131excellent
020060lightly pollutedexcellent121excellent
010056lightly pollutedexcellent101excellent
000043lightly pollutedexcellent91excellent
230043lightly pollutedexcellent81excellent
220033goodexcellent71excellent
210031goodexcellent61excellent
200028goodexcellent51excellent
190027goodexcellent51excellent
180020goodexcellent41excellent
170023goodexcellent41excellent
160023goodexcellent41excellent
150023goodexcellent41excellent
140023goodexcellent41excellent
130019goodexcellent21excellent
120021goodexcellent21excellent
110018goodexcellent21excellent