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
110045goodexcellent101excellent
100080lightly pollutedexcellent171excellent
0900104moderately pollutedexcellent201excellent
0800150heavily pollutedgood211excellent
0700152heavily pollutedgood211excellent
0600138moderately pollutedgood211excellent
0500126moderately pollutedgood211excellent
0400122moderately pollutedexcellent201excellent
0300122moderately pollutedexcellent201excellent
0200115moderately pollutedexcellent191excellent
0100108moderately pollutedexcellent161excellent
000082lightly pollutedexcellent131excellent
230084lightly pollutedexcellent121excellent
220062lightly pollutedexcellent101excellent
210061lightly pollutedexcellent101excellent
200053goodexcellent81excellent
190054goodexcellent81excellent
180038goodexcellent51excellent
170039goodexcellent51excellent
160040goodexcellent51excellent
150042goodexcellent51excellent
140046goodexcellent51excellent
130032goodexcellent31excellent
120034goodexcellent31excellent