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
200013goodexcellent21excellent
19008excellentexcellent21excellent
18005excellentexcellent11excellent
17008excellentexcellent21excellent
160010excellentexcellent21excellent
150032goodexcellent41excellent
140020goodexcellent71excellent
130027goodexcellent91excellent
120036goodexcellent111excellent
110047lightly pollutedgood141excellent
100045lightly pollutedgood151excellent
090054lightly pollutedgood131excellent
080048lightly pollutedexcellent111excellent
070041lightly pollutedexcellent81excellent
060043lightly pollutedexcellent81excellent
050042lightly pollutedexcellent81excellent
040044lightly pollutedexcellent81excellent
030039lightly pollutedexcellent81excellent
020036goodexcellent71excellent
010033goodexcellent71excellent
000026goodexcellent51excellent
230025goodexcellent41excellent
220027goodexcellent41excellent
210021goodexcellent41excellent