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
0300103moderately pollutedexcellent201excellent
0200104moderately pollutedexcellent201excellent
0100100lightly pollutedexcellent181excellent
000079lightly pollutedexcellent171excellent
230071lightly pollutedexcellent151excellent
220077lightly pollutedexcellent171excellent
210075lightly pollutedexcellent141excellent
200065lightly pollutedexcellent131excellent
190051goodexcellent111excellent
180051goodexcellent91excellent
170043goodexcellent71excellent
160042goodexcellent71excellent
150048goodexcellent81excellent
140043goodexcellent101excellent
130050goodexcellent111excellent
120056goodexcellent121excellent
110074lightly pollutedexcellent131excellent
100056goodexcellent131excellent
090058goodexcellent171excellent
080087lightly pollutedexcellent191excellent
070095lightly pollutedexcellent191excellent
060094lightly pollutedexcellent171excellent
050098lightly pollutedexcellent191excellent
040094lightly pollutedexcellent181excellent