PM 2.5

Air quality index [µg/m³]:

excellent ≤ 12

good ≤ 36

lightly polluted ≤ 60

moderately polluted ≤ 84

heavily polluted ≤ 120

severely polluted > 120

PM 2.5

[µg/m³]

HOUR	OPOLSKA ST.		ROOF (BEFORE FILTERS)			AIR SUPPLIED TO OFFICES
22⁰⁰	38	lightly polluted	excellent	2	⇨	1	excellent
21⁰⁰	37	lightly polluted	excellent	2	⇨	1	excellent
20⁰⁰	36	good	excellent	2	⇨	1	excellent
19⁰⁰	33	good	excellent	1	⇨	1	excellent
18⁰⁰	36	good	excellent	1	⇨	1	excellent
17⁰⁰	38	lightly polluted	excellent	2	⇨	1	excellent
16⁰⁰	56	lightly polluted	excellent	2	⇨	1	excellent
15⁰⁰	49	lightly polluted	excellent	2	⇨	1	excellent
14⁰⁰	31	good	excellent	2	⇨	1	excellent
13⁰⁰	34	good	excellent	2	⇨	1	excellent
12⁰⁰	37	lightly polluted	excellent	2	⇨	1	excellent
11⁰⁰	31	good	excellent	2	⇨	1	excellent
10⁰⁰	28	good	excellent	2	⇨	1	excellent
09⁰⁰	30	good	excellent	2	⇨	1	excellent
08⁰⁰	35	good	excellent	3	⇨	1	excellent
07⁰⁰	40	lightly polluted	excellent	3	⇨	1	excellent
06⁰⁰	46	lightly polluted	excellent	4	⇨	1	excellent
05⁰⁰	58	lightly polluted	excellent	4	⇨	1	excellent
04⁰⁰	66	moderately polluted	excellent	4	⇨	1	excellent
03⁰⁰	75	moderately polluted	excellent	4	⇨	1	excellent
02⁰⁰	96	heavily polluted	excellent	4	⇨	1	excellent
01⁰⁰	89	heavily polluted	excellent	4	⇨	1	excellent
00⁰⁰	96	heavily polluted	excellent	4	⇨	1	excellent
23⁰⁰	94	heavily polluted	excellent	4	⇨	1	excellent