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
150063lightly pollutedexcellent71excellent
140055goodexcellent71excellent
130042goodexcellent61excellent
120044goodexcellent81excellent
110054goodexcellent61excellent
100045goodexcellent61excellent
090056goodexcellent71excellent
080054goodexcellent61excellent
070054goodexcellent11excellent
060076lightly pollutedexcellent31excellent
050076lightly pollutedexcellent21excellent
040054goodexcellent21excellent
030039goodexcellent31excellent
020044goodexcellent21excellent
010034goodexcellent31excellent
000037goodexcellent41excellent
230047goodexcellent51excellent
220051goodexcellent61excellent
210055goodexcellent101excellent
200069lightly pollutedexcellent161excellent
190076lightly pollutedexcellent121excellent
180071lightly pollutedexcellent131excellent
170069lightly pollutedexcellent111excellent
160059goodexcellent131excellent