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
210090lightly pollutedexcellent81excellent
2000107moderately pollutedexcellent141excellent
1900128moderately pollutedexcellent122excellent
1800120moderately pollutedgood241excellent
1700118moderately pollutedgood221excellent
1600116moderately pollutedexcellent41excellent
1500110moderately pollutedexcellent51excellent
1400106moderately pollutedexcellent31excellent
130092lightly pollutedexcellent31excellent
120073lightly pollutedexcellent31excellent
110070lightly pollutedexcellent31excellent
100076lightly pollutedexcellent31excellent
090063lightly pollutedexcellent31excellent
080060goodexcellent41excellent
070072lightly pollutedexcellent51excellent
060069lightly pollutedexcellent31excellent
050052goodexcellent41excellent
040066lightly pollutedexcellent51excellent
030076lightly pollutedexcellent61excellent
020074lightly pollutedexcellent71excellent
010077lightly pollutedexcellent11excellent
000073lightly pollutedexcellent11excellent
230079lightly pollutedexcellent21excellent
220083lightly pollutedexcellent21excellent