Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
19004excellentexcellent11excellent
18004excellentexcellent11excellent
170033goodexcellent11excellent
160011excellentexcellent21excellent
150063lightly pollutedexcellent11excellent
140010excellentexcellent11excellent
13009excellentexcellent11excellent
120010excellentexcellent11excellent
110013excellentexcellent11excellent
100015excellentexcellent21excellent
090018excellentexcellent21excellent
080026goodexcellent41excellent
070040goodexcellent51excellent
060037goodexcellent41excellent
050036goodexcellent41excellent
040037goodexcellent41excellent
030036goodexcellent31excellent
020039goodexcellent41excellent
010047goodexcellent31excellent
000041goodexcellent31excellent
230035goodexcellent31excellent
220031goodexcellent31excellent
210026goodexcellent31excellent
200023goodexcellent21excellent