O3, last 14 days

O₃ concentrations per day (µg/m³): 00h00 till 24h00 GMT, last 14 days

Highest hourly meanHighest 8-hourly mean

- Click on the figures in the table cells to get an evolution graph of daily concentrations
- Click on the date to get an interpolation map
- "NA" means no or not enough data were available

Code city 26/10 27/10 28/10 29/10 30/10 31/10 01/11 02/11 03/11 04/11 05/11 06/11 07/11 08/11

41B011 Sint-Agatha-Berchem 56 55 61 58 43.5 34.5 36 59 42 47 35 18.5 22 28

41MEU1 Neder-Over-Heembeek 51 53.5 57.5 61 42 32 37 60.5 39 46 33.5 14 13 23

41N043 Voorhaven (Haren) 49.5 48 55 39.5 38.5 31.5 38 58.5 36 43.5 30.5 10.5 15.5 27

41R001 Sint-Jans-Molenbeek 50.5 49.5 53.5 41 31.5 27.5 29.5 52 34.5 40 27.5 11.5 15.5 28

41R012 Ukkel 55.5 58 59 51.5 43 33.5 44 58 43.5 48.5 38 12 20.5 32

42N016 Dessel 60 66 63.5 66.5 48 31.5 63.5 66.5 48 55.5 46 22 9 24

42N027 Bree 61.5 71.5 70.5 63.5 41 25 57.5 63.5 57 54 47 30 19 34

42N035 Aarschot 67.5 65.5 64.5 76.5 53.5 36 53.5 60.5 47.5 54 41.5 15.5 26.5 34

42N040 Sint-Pieters-Leeuw 54.5 65.5 64.5 66 52.5 32.5 41 58.5 42 48 42.5 12.5 22.5 31

42N046 Gellik 60.5 66 72 66 54 30.5 49 51.5 60.5 55 41.5 15 23 31

42N047 Hasselt 59 70 69 67 58 36.5 55.5 62.5 55 51 43 10.5 19 27

42R801 Borgerhout 55 57 54 55.5 47.5 33 49 60.5 40.5 43.5 33.5 7.5 8.5 25

42R811 Schoten 58.5 52.5 60.5 60.5 40.5 30 45.5 61 45.5 50.5 38.5 9 5.5 24

42R842 Mechelen (Hendrik Speecqvest) 57 50 51.5 54 37 26 33.5 55.5 37.5 48.5 33 4.5 19 24

44M705 Roeselare (Haven) 62 69 68 62.5 54 35 48 68 42 38 33.5 10.5 22 18

44N012 Moerkerke 61.5 71.5 73 76.5 34.5 24 53.5 74 55.5 51 36 12.5 38.5 32

44N029 Houtem (Veurne) 63.5 73.5 77 67 65 36 55 77 55 52 38.5 13 53.5 32

44R701 Gent (Baudelopark) 60.5 64.5 61.5 65 50.5 35 56.5 64.5 46 52.5 39.5 5.5 9 22

44R710 Destelbergen 61.5 61.5 65.5 68.5 52 36.5 51.5 65.5 46 58 41.5 9 10 24

43N060 Havinnes 55.5 63.5 66 67 62 43.5 56.5 67 41.5 48.5 48.5 11.5 19 22

43N064 Rixensart 61.5 68 69.5 68 59 40.5 52.5 56 52 51 46.5 16.5 25 34

43N066 Eupen 58 59.5 60.5 63.5 65 54.5 38 39 59.5 60 44.5 29 31.5 42

43N070 Mons 41.5 37.5 49 61.5 52 43 52.5 56.5 40.5 51.5 38 7.5 6 21

43N073 Vezin 56.5 58 66.5 71 48.5 34 27.5 51.5 53.5 51 39.5 13.5 29.5 30

43N085 Vielsalm NA NA 54 43.5 58.5 58.5 41 44 50.5 56.5 40 30 20 24

43N093 Sinsin 57.5 64 69.5 63.5 64.5 50 39.5 37 57 58 46.5 31 28.5 36

43N100 Dourbes 61.5 66 79.5 76 73.5 63 59.5 59 64.5 63.5 53 22 50 41

43N113 Saint-Ode 58 65 70.5 69 70 66.5 55.5 47 58 60.5 53 37 36 48

43N121 Offagne 53.5 61.5 58.5 69.5 68.5 69 51.5 43.5 54 56 51 30.5 33 45

43N132 Habay-La-Neuve 49 55.5 53.5 62.5 61.5 60.5 54.5 46 52 54.5 44.5 27 16 22

43R221 Herstal 58.5 56.5 68 60.5 48.5 39.5 34 32.5 56 58.5 38 11 22.5 33

43R222 Liège (ISSeP) 52.5 46.5 57 51.5 42 38 23 29 52 60 40.5 14 27 38

43R240 Engis 48 44.5 60 52 38 34.5 14.5 24.5 50 50.5 28.5 1 11.5 22

43R401 Namur 57 63.5 65.5 66 46.5 33 1 NA 50.5 47.5 33.5 9.5 38 33

45R502 Lodelinsart 52.5 49.5 56.5 61.5 53 44.5 50 47.5 53.5 52 35 8 19 32

Interpolated spatial average in :

Brussels 55 55 59 52 42 32 37 57 38 NA 36 12 18 29

Flanders 61 63 66 66 49 33 50 63 43 NA 41 15 19 26

Wallonia 56 55 62 63 59 48 43 45 48 NA 44 20 24 32

Belgium 58 59 64 64 54 41 46 53 46 NA 43 18 22 29

% of the population exposed to O₃ concentrations > 180 μg/m³ in:

Brussels 0% 0% 0% 0% 0% 0% 0% 0% 0% NA 0% 0% 0% 0%

Flanders 0% 0% 0% 0% 0% 0% 0% 0% 0% NA 0% 0% 0% 0%

Wallonia 0% 0% 0% 0% 0% 0% 0% 0% 0% NA 0% 0% 0% 0%

Belgium 0% 0% 0% 0% 0% 0% 0% 0% 0% NA 0% 0% 0% 0%

% of the population exposed to O₃ concentrations > 240 μg/m³ in:

Brussels 0% 0% 0% 0% 0% 0% 0% 0% 0% NA 0% 0% 0% 0%

Flanders 0% 0% 0% 0% 0% 0% 0% 0% 0% NA 0% 0% 0% 0%

Wallonia 0% 0% 0% 0% 0% 0% 0% 0% 0% NA 0% 0% 0% 0%

Belgium 0% 0% 0% 0% 0% 0% 0% 0% 0% NA 0% 0% 0% 0%

Code	city	26/10	27/10	28/10	29/10	30/10	31/10	01/11	02/11	03/11	04/11	05/11	06/11	07/11	08/11
41B011	Sint-Agatha-Berchem	56	55	61	58	43.5	34.5	36	59	42	47	35	18.5	22	28
41MEU1	Neder-Over-Heembeek	51	53.5	57.5	61	42	32	37	60.5	39	46	33.5	14	13	23
41N043	Voorhaven (Haren)	49.5	48	55	39.5	38.5	31.5	38	58.5	36	43.5	30.5	10.5	15.5	27
41R001	Sint-Jans-Molenbeek	50.5	49.5	53.5	41	31.5	27.5	29.5	52	34.5	40	27.5	11.5	15.5	28
41R012	Ukkel	55.5	58	59	51.5	43	33.5	44	58	43.5	48.5	38	12	20.5	32
42N016	Dessel	60	66	63.5	66.5	48	31.5	63.5	66.5	48	55.5	46	22	9	24
42N027	Bree	61.5	71.5	70.5	63.5	41	25	57.5	63.5	57	54	47	30	19	34
42N035	Aarschot	67.5	65.5	64.5	76.5	53.5	36	53.5	60.5	47.5	54	41.5	15.5	26.5	34
42N040	Sint-Pieters-Leeuw	54.5	65.5	64.5	66	52.5	32.5	41	58.5	42	48	42.5	12.5	22.5	31
42N046	Gellik	60.5	66	72	66	54	30.5	49	51.5	60.5	55	41.5	15	23	31
42N047	Hasselt	59	70	69	67	58	36.5	55.5	62.5	55	51	43	10.5	19	27
42R801	Borgerhout	55	57	54	55.5	47.5	33	49	60.5	40.5	43.5	33.5	7.5	8.5	25
42R811	Schoten	58.5	52.5	60.5	60.5	40.5	30	45.5	61	45.5	50.5	38.5	9	5.5	24
42R842	Mechelen (Hendrik Speecqvest)	57	50	51.5	54	37	26	33.5	55.5	37.5	48.5	33	4.5	19	24
44M705	Roeselare (Haven)	62	69	68	62.5	54	35	48	68	42	38	33.5	10.5	22	18
44N012	Moerkerke	61.5	71.5	73	76.5	34.5	24	53.5	74	55.5	51	36	12.5	38.5	32
44N029	Houtem (Veurne)	63.5	73.5	77	67	65	36	55	77	55	52	38.5	13	53.5	32
44R701	Gent (Baudelopark)	60.5	64.5	61.5	65	50.5	35	56.5	64.5	46	52.5	39.5	5.5	9	22
44R710	Destelbergen	61.5	61.5	65.5	68.5	52	36.5	51.5	65.5	46	58	41.5	9	10	24
43N060	Havinnes	55.5	63.5	66	67	62	43.5	56.5	67	41.5	48.5	48.5	11.5	19	22
43N064	Rixensart	61.5	68	69.5	68	59	40.5	52.5	56	52	51	46.5	16.5	25	34
43N066	Eupen	58	59.5	60.5	63.5	65	54.5	38	39	59.5	60	44.5	29	31.5	42
43N070	Mons	41.5	37.5	49	61.5	52	43	52.5	56.5	40.5	51.5	38	7.5	6	21
43N073	Vezin	56.5	58	66.5	71	48.5	34	27.5	51.5	53.5	51	39.5	13.5	29.5	30
43N085	Vielsalm	NA	NA	54	43.5	58.5	58.5	41	44	50.5	56.5	40	30	20	24
43N093	Sinsin	57.5	64	69.5	63.5	64.5	50	39.5	37	57	58	46.5	31	28.5	36
43N100	Dourbes	61.5	66	79.5	76	73.5	63	59.5	59	64.5	63.5	53	22	50	41
43N113	Saint-Ode	58	65	70.5	69	70	66.5	55.5	47	58	60.5	53	37	36	48
43N121	Offagne	53.5	61.5	58.5	69.5	68.5	69	51.5	43.5	54	56	51	30.5	33	45
43N132	Habay-La-Neuve	49	55.5	53.5	62.5	61.5	60.5	54.5	46	52	54.5	44.5	27	16	22
43R221	Herstal	58.5	56.5	68	60.5	48.5	39.5	34	32.5	56	58.5	38	11	22.5	33
43R222	Liège (ISSeP)	52.5	46.5	57	51.5	42	38	23	29	52	60	40.5	14	27	38
43R240	Engis	48	44.5	60	52	38	34.5	14.5	24.5	50	50.5	28.5	1	11.5	22
43R401	Namur	57	63.5	65.5	66	46.5	33	1	NA	50.5	47.5	33.5	9.5	38	33
45R502	Lodelinsart	52.5	49.5	56.5	61.5	53	44.5	50	47.5	53.5	52	35	8	19	32

Interpolated spatial average in :
Brussels	55	55	59	52	42	32	37	57	38	NA	36	12	18	29
Flanders	61	63	66	66	49	33	50	63	43	NA	41	15	19	26
Wallonia	56	55	62	63	59	48	43	45	48	NA	44	20	24	32
Belgium	58	59	64	64	54	41	46	53	46	NA	43	18	22	29

% of the population exposed to O₃ concentrations > 180 μg/m³ in:
Brussels	0%	0%	0%	0%	0%	0%	0%	0%	0%	NA	0%	0%	0%	0%
Flanders	0%	0%	0%	0%	0%	0%	0%	0%	0%	NA	0%	0%	0%	0%
Wallonia	0%	0%	0%	0%	0%	0%	0%	0%	0%	NA	0%	0%	0%	0%
Belgium	0%	0%	0%	0%	0%	0%	0%	0%	0%	NA	0%	0%	0%	0%

% of the population exposed to O₃ concentrations > 240 μg/m³ in:
Brussels	0%	0%	0%	0%	0%	0%	0%	0%	0%	NA	0%	0%	0%	0%
Flanders	0%	0%	0%	0%	0%	0%	0%	0%	0%	NA	0%	0%	0%	0%
Wallonia	0%	0%	0%	0%	0%	0%	0%	0%	0%	NA	0%	0%	0%	0%
Belgium	0%	0%	0%	0%	0%	0%	0%	0%	0%	NA	0%	0%	0%	0%

Color legend: Kleurlegende

These data are not validated : they should not be used for any study whatsoever
The use or publication of the data is allowed only when the source (www.irceline.be) is acknowledged