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
220015goodexcellent41excellent
210019goodexcellent41excellent
200020goodexcellent41excellent
190017goodexcellent31excellent
180013goodexcellent31excellent
170011excellentexcellent21excellent
160010excellentexcellent31excellent
150011excellentexcellent31excellent
140012excellentexcellent31excellent
130011excellentexcellent31excellent
120011excellentexcellent31excellent
110012excellentexcellent31excellent
100013goodexcellent41excellent
090016goodexcellent41excellent
080026goodexcellent51excellent
070024goodexcellent51excellent
060020goodexcellent31excellent
050016goodexcellent31excellent
040016goodexcellent31excellent
030015goodexcellent31excellent
020017goodexcellent31excellent
010019goodexcellent31excellent
000019goodexcellent31excellent
230017goodexcellent31excellent