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
04⁰⁰	137	severely polluted	good	32	⇨	1	excellent
03⁰⁰	142	severely polluted	good	32	⇨	1	excellent
02⁰⁰	156	severely polluted	good	33	⇨	1	excellent
01⁰⁰	167	severely polluted	good	34	⇨	1	excellent
00⁰⁰	155	severely polluted	good	31	⇨	1	excellent
23⁰⁰	162	severely polluted	good	30	⇨	1	excellent
22⁰⁰	169	severely polluted	good	30	⇨	1	excellent
21⁰⁰	162	severely polluted	good	31	⇨	1	excellent
20⁰⁰	167	severely polluted	good	31	⇨	1	excellent
19⁰⁰	151	severely polluted	good	33	⇨	1	excellent
18⁰⁰	139	severely polluted	good	33	⇨	1	excellent
17⁰⁰	141	severely polluted	good	31	⇨	1	excellent
16⁰⁰	128	severely polluted	good	29	⇨	1	excellent
15⁰⁰	116	heavily polluted	good	26	⇨	1	excellent
14⁰⁰	131	severely polluted	good	34	⇨	1	excellent
13⁰⁰	174	severely polluted	lightly polluted	50	⇨	1	excellent
12⁰⁰	198	severely polluted	lightly polluted	54	⇨	1	excellent
11⁰⁰	200	severely polluted	lightly polluted	55	⇨	1	excellent
10⁰⁰	182	severely polluted	lightly polluted	41	⇨	1	excellent
09⁰⁰	129	severely polluted	good	28	⇨	1	excellent
08⁰⁰	125	severely polluted	good	29	⇨	1	excellent
07⁰⁰	132	severely polluted	good	33	⇨	1	excellent
06⁰⁰	142	severely polluted	good	34	⇨	1	excellent
05⁰⁰	134	severely polluted	good	32	⇨	1	excellent