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
0900133moderately pollutedexcellent161excellent
0800155heavily pollutedexcellent141excellent
0700134moderately pollutedexcellent71excellent
0600120moderately pollutedexcellent131excellent
0500129moderately pollutedexcellent201excellent
0400137moderately pollutedexcellent191excellent
0300139moderately pollutedexcellent201excellent
0200129moderately pollutedexcellent201excellent
0100153heavily pollutedgood211excellent
0000158heavily pollutedgood212excellent
2300145heavily pollutedexcellent201excellent
2200153heavily pollutedgood211excellent
2100128moderately pollutedgood221excellent
2000130moderately pollutedexcellent201excellent
1900117moderately pollutedexcellent201excellent
1800126moderately pollutedexcellent171excellent
1700105moderately pollutedexcellent181excellent
160097lightly pollutedexcellent161excellent
1500101moderately pollutedexcellent201excellent
1400111moderately pollutedgood221excellent
1300116moderately pollutedgood211excellent
1200107moderately pollutedexcellent201excellent
1100116moderately pollutedexcellent181excellent
1000109moderately pollutedexcellent181excellent