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
070021goodexcellent31excellent
060019goodexcellent31excellent
050023goodexcellent41excellent
040022goodexcellent41excellent
030023goodexcellent41excellent
020024goodexcellent41excellent
010024goodexcellent41excellent
000026goodexcellent41excellent
230026goodexcellent41excellent
220023goodexcellent41excellent
210019goodexcellent31excellent
200018goodexcellent31excellent
190017goodexcellent21excellent
180020goodexcellent21excellent
170016goodexcellent31excellent
160016goodexcellent21excellent
150015goodexcellent21excellent
140014goodexcellent21excellent
130015goodexcellent21excellent
120012excellentexcellent21excellent
110017goodexcellent31excellent
100018goodexcellent31excellent
090015goodexcellent31excellent
080017goodexcellent31excellent