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
090036goodexcellent81excellent
080073lightly pollutedexcellent121excellent
070091lightly pollutedexcellent121excellent
060095lightly pollutedexcellent121excellent
050092lightly pollutedexcellent121excellent
040080lightly pollutedexcellent121excellent
030077lightly pollutedexcellent111excellent
020066lightly pollutedexcellent111excellent
010068lightly pollutedexcellent81excellent
000056goodexcellent71excellent
230038goodexcellent71excellent
220035goodexcellent61excellent
210024goodexcellent51excellent
200018excellentexcellent31excellent
190012excellentexcellent21excellent
180012excellentexcellent21excellent
170011excellentexcellent11excellent
160011excellentexcellent21excellent
150012excellentexcellent31excellent
140013excellentexcellent21excellent
130013excellentexcellent31excellent
120014excellentexcellent31excellent
110021goodexcellent31excellent
100027goodexcellent51excellent