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
1800102moderately pollutedexcellent141excellent
170084lightly pollutedexcellent101excellent
160064lightly pollutedexcellent101excellent
150057goodexcellent91excellent
140050goodexcellent81excellent
130066lightly pollutedexcellent91excellent
120068lightly pollutedexcellent101excellent
110066lightly pollutedexcellent101excellent
100063lightly pollutedexcellent101excellent
090079lightly pollutedexcellent91excellent
080086lightly pollutedexcellent111excellent
070085lightly pollutedexcellent121excellent
060082lightly pollutedexcellent141excellent
050094lightly pollutedexcellent161excellent
040097lightly pollutedexcellent151excellent
0300118moderately pollutedexcellent181excellent
0200148heavily pollutedexcellent201excellent
0100132moderately pollutedexcellent171excellent
0000137moderately pollutedexcellent151excellent
2300133moderately pollutedexcellent171excellent
2200131moderately pollutedexcellent161excellent
2100142heavily pollutedexcellent172excellent
2000137moderately pollutedexcellent171excellent
1900128moderately pollutedexcellent171excellent