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
000029goodexcellent51excellent
230027goodexcellent51excellent
220027goodexcellent41excellent
210022goodexcellent41excellent
200025goodexcellent41excellent
190020goodexcellent41excellent
180025goodexcellent51excellent
170030goodexcellent61excellent
160039lightly pollutedexcellent81excellent
150028goodexcellent81excellent
140039lightly pollutedexcellent81excellent
130038lightly pollutedexcellent91excellent
120050lightly pollutedexcellent101excellent
110053lightly pollutedexcellent91excellent
100054lightly pollutedexcellent61excellent
090054lightly pollutedexcellent41excellent
080049lightly pollutedexcellent61excellent
070047lightly pollutedexcellent91excellent
060051lightly pollutedexcellent101excellent
050052lightly pollutedexcellent101excellent
040051lightly pollutedexcellent101excellent
030050lightly pollutedexcellent101excellent
020048lightly pollutedexcellent101excellent
010050lightly pollutedexcellent101excellent