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
090080lightly pollutedexcellent101excellent
080064lightly pollutedexcellent111excellent
070056goodexcellent81excellent
060046goodexcellent101excellent
050062lightly pollutedexcellent111excellent
040051goodexcellent111excellent
030054goodexcellent101excellent
010078lightly pollutedexcellent131excellent
000072lightly pollutedexcellent151excellent
2300101moderately pollutedexcellent171excellent
220081lightly pollutedexcellent171excellent
2100102moderately pollutedexcellent181excellent
200083lightly pollutedexcellent162excellent
1900102moderately pollutedexcellent171excellent
1800102moderately pollutedexcellent132excellent
170079lightly pollutedexcellent121excellent
160082lightly pollutedexcellent121excellent
150085lightly pollutedexcellent131excellent
140077lightly pollutedexcellent121excellent
130077lightly pollutedexcellent91excellent
120071lightly pollutedexcellent101excellent
110067lightly pollutedexcellent81excellent
100042goodexcellent51excellent