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
190058lightly pollutedexcellent121excellent
180054lightly pollutedexcellent101excellent
170044lightly pollutedexcellent91excellent
160046lightly pollutedexcellent91excellent
150032goodexcellent81excellent
140027goodexcellent71excellent
130023goodexcellent61excellent
120020goodexcellent51excellent
110022goodexcellent51excellent
100019goodexcellent51excellent
090021goodexcellent41excellent
080022goodexcellent51excellent
070024goodexcellent51excellent
060022goodexcellent51excellent
050025goodexcellent61excellent
040024goodexcellent41excellent
030022goodexcellent41excellent
020020goodexcellent41excellent
010024goodexcellent41excellent
000025goodexcellent41excellent
230029goodexcellent51excellent
220033goodexcellent61excellent
210028goodexcellent61excellent
200027goodexcellent51excellent