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
21003excellentexcellent11excellent
20004excellentexcellent11excellent
19002excellentexcellent11excellent
18002excellentexcellent11excellent
170013goodexcellent11excellent
160010excellentexcellent21excellent
150048lightly pollutedexcellent11excellent
14006excellentexcellent11excellent
13007excellentexcellent11excellent
12007excellentexcellent11excellent
11009excellentexcellent11excellent
10008excellentexcellent21excellent
090011excellentexcellent21excellent
080014goodexcellent31excellent
070022goodexcellent41excellent
060021goodexcellent31excellent
050021goodexcellent31excellent
040022goodexcellent31excellent
030021goodexcellent31excellent
020022goodexcellent31excellent
010026goodexcellent31excellent
000022goodexcellent31excellent
230020goodexcellent21excellent
220017goodexcellent21excellent