PM 2.5
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]
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
190021goodexcellent41excellent
180014goodexcellent21excellent
170014goodexcellent31excellent
160015goodexcellent21excellent
15008excellentexcellent11excellent
14008excellentexcellent21excellent
13009excellentexcellent21excellent
120010excellentexcellent21excellent
110014goodexcellent31excellent
100014goodexcellent31excellent
090010excellentexcellent21excellent
080017goodexcellent31excellent
070018goodexcellent31excellent
060018goodexcellent31excellent
050017goodexcellent31excellent
040017goodexcellent31excellent
030017goodexcellent31excellent
020017goodexcellent31excellent
010022goodexcellent41excellent
000024goodexcellent41excellent
230020goodexcellent31excellent
220017goodexcellent31excellent
210019goodexcellent21excellent
200015goodexcellent21excellent