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
000011excellentexcellent11excellent
230010excellentexcellent11excellent
220011excellentexcellent11excellent
21007excellentexcellent11excellent
20004excellentexcellent11excellent
19004excellentexcellent11excellent
180076lightly pollutedexcellent11excellent
170081lightly pollutedexcellent11excellent
1600131moderately pollutedexcellent11excellent
1500126moderately pollutedexcellent11excellent
140096lightly pollutedexcellent11excellent
130080lightly pollutedexcellent11excellent
1200152heavily pollutedexcellent11excellent
110038goodexcellent11excellent
100020excellentexcellent21excellent
09009excellentexcellent11excellent
08009excellentexcellent11excellent
07007excellentexcellent21excellent
06009excellentexcellent11excellent
050016excellentexcellent21excellent
040011excellentexcellent11excellent
030012excellentexcellent11excellent
020012excellentexcellent11excellent
010010excellentexcellent11excellent