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
060020goodexcellent41excellent
050021goodexcellent41excellent
040021goodexcellent41excellent
030019goodexcellent41excellent
020020goodexcellent41excellent
010021goodexcellent41excellent
000022goodexcellent41excellent
230021goodexcellent31excellent
220018goodexcellent41excellent
210019goodexcellent31excellent
200013goodexcellent31excellent
190014goodexcellent31excellent
180011excellentexcellent21excellent
17009excellentexcellent21excellent
160010excellentexcellent21excellent
15009excellentexcellent21excellent
14009excellentexcellent21excellent
130010excellentexcellent21excellent
12009excellentexcellent21excellent
110010excellentexcellent21excellent
10009excellentexcellent21excellent
090011excellentexcellent31excellent
080011excellentexcellent31excellent
070015goodexcellent31excellent