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
070020goodexcellent41excellent
060019goodexcellent41excellent
050023goodexcellent51excellent
040022goodexcellent41excellent
030019goodexcellent41excellent
020017goodexcellent31excellent
010013goodexcellent31excellent
000010excellentexcellent21excellent
230011excellentexcellent21excellent
220017goodexcellent21excellent
210078moderately pollutedexcellent41excellent
200028goodexcellent41excellent
190046lightly pollutedexcellent31excellent
180053lightly pollutedexcellent41excellent
170045lightly pollutedexcellent31excellent
160060lightly pollutedexcellent31excellent
150059lightly pollutedexcellent31excellent
140061moderately pollutedexcellent41excellent
130073moderately pollutedexcellent31excellent
120090heavily pollutedexcellent31excellent
1100101heavily pollutedexcellent41excellent
100035goodexcellent51excellent
090036goodexcellent51excellent
080033goodexcellent61excellent