PM 2.5
Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
0400200severely pollutedexcellent21excellent
0300200severely pollutedexcellent21excellent
0200200severely pollutedexcellent21excellent
0100200severely pollutedexcellent31excellent
0000200severely pollutedexcellent31excellent
2300200severely pollutedexcellent31excellent
2200200severely pollutedexcellent31excellent
2100200severely pollutedexcellent21excellent
2000200severely pollutedexcellent21excellent
1900200severely pollutedexcellent11excellent
1800200severely pollutedexcellent21excellent
1700200severely pollutedexcellent21excellent
1600200severely pollutedexcellent21excellent
1500200severely pollutedexcellent21excellent
1400200severely pollutedexcellent21excellent
1300200severely pollutedexcellent21excellent
1200200severely pollutedexcellent21excellent
1100200severely pollutedexcellent21excellent
1000200severely pollutedexcellent21excellent
0900200severely pollutedexcellent11excellent
0800200severely pollutedexcellent11excellent
0700200severely pollutedexcellent11excellent
0600200severely pollutedexcellent21excellent
0500200severely pollutedexcellent11excellent