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
000020excellentexcellent21excellent
230018excellentexcellent21excellent
220022goodexcellent11excellent
210010excellentexcellent11excellent
200012excellentexcellent11excellent
19008excellentexcellent11excellent
18009excellentexcellent11excellent
170011excellentexcellent11excellent
160015excellentexcellent11excellent
150010excellentexcellent11excellent
140013excellentexcellent11excellent
130016excellentexcellent21excellent
120021goodexcellent21excellent
110025goodexcellent41excellent
100039goodexcellent51excellent
090055goodexcellent81excellent
080073lightly pollutedexcellent91excellent
070074lightly pollutedexcellent51excellent
060063lightly pollutedexcellent21excellent
050050goodexcellent31excellent
040038goodexcellent31excellent
030038goodexcellent21excellent
020024goodexcellent21excellent
010022goodexcellent11excellent