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
220076lightly pollutedexcellent81excellent
210061lightly pollutedexcellent71excellent
200042goodexcellent61excellent
190038goodexcellent61excellent
180025goodexcellent41excellent
170023goodexcellent41excellent
160019excellentexcellent31excellent
150022goodexcellent31excellent
140018excellentexcellent31excellent
130029goodexcellent51excellent
120050goodexcellent81excellent
110055goodexcellent122excellent
100083lightly pollutedexcellent151excellent
090087lightly pollutedexcellent161excellent
080096lightly pollutedexcellent141excellent
070085lightly pollutedexcellent131excellent
060078lightly pollutedexcellent121excellent
050076lightly pollutedexcellent111excellent
040072lightly pollutedexcellent111excellent
030072lightly pollutedexcellent101excellent
020073lightly pollutedexcellent101excellent
010067lightly pollutedexcellent111excellent
000074lightly pollutedexcellent101excellent
230067lightly pollutedexcellent111excellent