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
190065lightly pollutedexcellent121excellent
180057goodexcellent121excellent
170053goodexcellent101excellent
160055goodexcellent81excellent
150054goodexcellent81excellent
140065lightly pollutedexcellent91excellent
130079lightly pollutedexcellent101excellent
120073lightly pollutedexcellent101excellent
110076lightly pollutedexcellent101excellent
100081lightly pollutedexcellent111excellent
090091lightly pollutedexcellent111excellent
0800100lightly pollutedexcellent121excellent
0700105moderately pollutedexcellent121excellent
0600139moderately pollutedexcellent141excellent
0500121moderately pollutedexcellent162excellent
0400101moderately pollutedexcellent151excellent
0300111moderately pollutedexcellent161excellent
0200110moderately pollutedexcellent161excellent
0100111moderately pollutedexcellent141excellent
0000115moderately pollutedexcellent151excellent
2300118moderately pollutedexcellent161excellent
2200132moderately pollutedexcellent151excellent
2100126moderately pollutedexcellent141excellent
200097lightly pollutedexcellent141excellent