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]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
110016goodexcellent31excellent
100025goodexcellent51excellent
090031goodexcellent51excellent
080037lightly pollutedexcellent71excellent
070034goodexcellent71excellent
060043lightly pollutedexcellent71excellent
050029goodexcellent61excellent
040027goodexcellent61excellent
030029goodexcellent61excellent
020028goodexcellent51excellent
010024goodexcellent51excellent
000021goodexcellent41excellent
230027goodexcellent51excellent
220036goodexcellent71excellent
210032goodexcellent51excellent
200029goodexcellent41excellent
190024goodexcellent41excellent
180021goodexcellent41excellent
170020goodexcellent41excellent
160028goodexcellent51excellent
150030goodexcellent51excellent
140031goodexcellent61excellent
130032goodexcellent91excellent
120039lightly pollutedexcellent91excellent