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
060076lightly pollutedexcellent121excellent
050087lightly pollutedexcellent142excellent
040055goodexcellent101excellent
030045goodexcellent81excellent
020034goodexcellent61excellent
010025goodexcellent41excellent
000021goodexcellent41excellent
230019excellentexcellent51excellent
220024goodexcellent41excellent
210024goodexcellent61excellent
200021goodexcellent41excellent
190020excellentexcellent31excellent
180016excellentexcellent31excellent
170012excellentexcellent21excellent
160016excellentexcellent21excellent
150018excellentexcellent31excellent
140017excellentexcellent31excellent
130022goodexcellent41excellent
120019excellentexcellent41excellent
110029goodexcellent41excellent
100052goodexcellent71excellent
090042goodexcellent61excellent
080062lightly pollutedexcellent91excellent
070085lightly pollutedexcellent111excellent