Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
230034goodexcellent41excellent
220032goodexcellent41excellent
210034goodexcellent31excellent
200031goodexcellent41excellent
190028goodexcellent41excellent
180028goodexcellent41excellent
170031goodexcellent41excellent
160040goodexcellent51excellent
150046goodexcellent91excellent
140065lightly pollutedexcellent111excellent
130064lightly pollutedexcellent111excellent
120053goodexcellent81excellent
110065lightly pollutedexcellent91excellent
100066lightly pollutedexcellent91excellent
090069lightly pollutedexcellent101excellent
080072lightly pollutedexcellent81excellent
070071lightly pollutedexcellent101excellent
060065lightly pollutedexcellent91excellent
050067lightly pollutedexcellent81excellent
040051goodexcellent81excellent
030055goodexcellent91excellent
020071lightly pollutedexcellent101excellent
010066lightly pollutedexcellent111excellent
000060goodexcellent101excellent