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
200013goodexcellent21excellent
190013goodexcellent21excellent
18009excellentexcellent11excellent
170010excellentexcellent11excellent
16007excellentexcellent11excellent
15009excellentexcellent21excellent
14009excellentexcellent11excellent
13009excellentexcellent21excellent
120010excellentexcellent21excellent
110011excellentexcellent21excellent
100015goodexcellent21excellent
090017goodexcellent21excellent
080014goodexcellent21excellent
070013goodexcellent21excellent
060012excellentexcellent11excellent
050010excellentexcellent11excellent
040011excellentexcellent21excellent
030023goodexcellent41excellent
020023goodexcellent41excellent
010028goodexcellent41excellent
000017goodexcellent21excellent
230015goodexcellent11excellent
220013goodexcellent11excellent
210011excellentexcellent11excellent