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
230086lightly pollutedexcellent21excellent
220078lightly pollutedexcellent31excellent
210063lightly pollutedexcellent31excellent
200066lightly pollutedexcellent31excellent
190062lightly pollutedexcellent21excellent
180062lightly pollutedexcellent21excellent
170070lightly pollutedexcellent31excellent
1600101moderately pollutedexcellent31excellent
150088lightly pollutedexcellent31excellent
140062lightly pollutedexcellent31excellent
130068lightly pollutedexcellent31excellent
120067lightly pollutedexcellent31excellent
110055goodexcellent41excellent
100054goodexcellent41excellent
090058goodexcellent41excellent
080073lightly pollutedexcellent41excellent
070083lightly pollutedexcellent61excellent
060094lightly pollutedexcellent71excellent
0500121moderately pollutedexcellent81excellent
0400135moderately pollutedexcellent81excellent
0300148heavily pollutedexcellent81excellent
0200193heavily pollutedexcellent71excellent
0100171heavily pollutedexcellent71excellent
0000180heavily pollutedexcellent71excellent