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
090046goodexcellent41excellent
080041goodexcellent51excellent
070041goodexcellent51excellent
060045goodexcellent41excellent
050062lightly pollutedexcellent41excellent
040064lightly pollutedexcellent41excellent
030054goodexcellent51excellent
020043goodexcellent41excellent
010036goodexcellent51excellent
000025goodexcellent51excellent
230040goodexcellent61excellent
220021goodexcellent51excellent
210034goodexcellent51excellent
200028goodexcellent51excellent
190022goodexcellent41excellent
180020excellentexcellent31excellent
170017excellentexcellent31excellent
160012excellentexcellent21excellent
15009excellentexcellent11excellent
14008excellentexcellent11excellent
13004excellentexcellent11excellent
12006excellentexcellent21excellent
11007excellentexcellent11excellent
100010excellentexcellent11excellent