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
030037goodexcellent41excellent
020033goodexcellent41excellent
010033goodexcellent51excellent
000038goodexcellent41excellent
230031goodexcellent41excellent
220019excellentexcellent41excellent
210022goodexcellent31excellent
200016excellentexcellent31excellent
190015excellentexcellent21excellent
180010excellentexcellent21excellent
170010excellentexcellent21excellent
16008excellentexcellent21excellent
15009excellentexcellent21excellent
14007excellentexcellent21excellent
130010excellentexcellent21excellent
120010excellentexcellent21excellent
110019excellentexcellent31excellent
100024goodexcellent51excellent
090036goodexcellent81excellent
080073lightly pollutedexcellent121excellent
070091lightly pollutedexcellent121excellent
060095lightly pollutedexcellent121excellent
050092lightly pollutedexcellent121excellent
040080lightly pollutedexcellent121excellent