24 Hour Summary, based on data provided by Environment Agency

Here you can view the detailed data behind the latest measurement summary displayed on UK-AIR, and also a summary of information that has been displayed over the previous 24 hours. The detailed data tabulated below are from monitoring sites within the AURN. Graphs of hourly monitoring data are also available to view as weekly time series. You can also subscribe to this information as an email alert.

  • View the legend
  • Maximum pollutant levels displayed on UK-AIR for the 24 hour period up to 4pm Fri 22nd Sep 2023

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Central Scotland

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Auchencorth Moss
Timeseries Graph
64 (2 Low)n/mn/m2 (1 Low)3 (1 Low)
*2
22/09/2023
01:00:00
Bush Estate
Timeseries Graph
63 (2 Low)4 (1 Low)n/mn/mn/m 21/09/2023
19:00:00
Dumbarton Roadside
Timeseries Graph
n/m28 (1 Low)n/mn/mn/m 22/09/2023
09:00:00
Edinburgh Nicolson Street
Timeseries Graph
n/m65 (1 Low)n/mn/mn/m 22/09/2023
16:00:00
Edinburgh St Leonards
Timeseries Graph
56 (2 Low)20 (1 Low)6 (1 Low)2 (1 Low)5 (1 Low)
*2
22/09/2023
13:15:00
Glasgow Great Western Road
Timeseries Graph
n/m47 (1 Low)n/mn/mn/m 22/09/2023
09:00:00
Glasgow High Street
Timeseries Graph
n/m46 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
22/09/2023
05:00:00
Glasgow Kerbside
Timeseries Graph
n/m62 (1 Low)n/mn/mn/m 22/09/2023
09:00:00
Glasgow Townhead
Timeseries Graph
57 (2 Low)31 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
22/09/2023
05:00:00
Grangemouth
Timeseries Graph
n/m18 (1 Low)2 (1 Low)3 (1 Low)5 (1 Low)
*1
21/09/2023
21:45:00
Grangemouth Moray
Timeseries Graph
n/m19 (1 Low)n/mn/mn/m 22/09/2023
12:00:00
Greenock A8 Roadside
Timeseries Graph
n/m31 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
22/09/2023
01:00:00

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East Midlands

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Chesterfield Loundsley Green
Timeseries Graph
61 (2 Low)13 (1 Low)n/m3 (1 Low)8 (1 Low)
*2
22/09/2023
01:00:00
Chesterfield Roadside
Timeseries Graph
n/m24 (1 Low)n/m3 (1 Low)8 (1 Low)
*2
22/09/2023
01:00:00
Derby St Alkmund's Way
Timeseries Graph
n/m51 (1 Low)n/mn/mn/m 21/09/2023
18:00:00
Ladybower
Timeseries Graph
67 (3 Low)8 (1 Low)1 (1 Low)n/mn/m 22/09/2023
02:30:00
Leicester A594 Roadside
Timeseries Graph
n/m60 (1 Low)n/mn/m13 (1 Low)
*1
21/09/2023
19:00:00
Leicester University
Timeseries Graph
60 (2 Low)32 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
22/09/2023
09:00:00
Lincoln Canwick Road
Timeseries Graph
n/m24 (1 Low)n/mn/mn/m 21/09/2023
21:00:00
Northampton Spring Park
Timeseries Graph
57 (2 Low)33 (1 Low)n/m5 (1 Low)n/m 22/09/2023
01:00:00
Nottingham Centre
Timeseries Graph
57 (2 Low)35 (1 Low)3 (1 Low)14 (2 Low)19 (2 Low)
*2
22/09/2023
08:45:00
Nottingham Western Boulevard
Timeseries Graph
n/m58 (1 Low)n/mn/m15 (1 Low)
*1
21/09/2023
21:00:00

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Eastern

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Borehamwood Meadow Park
Timeseries Graph
n/m46 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
22/09/2023
05:00:00
Cambridge Roadside
Timeseries Graph
n/m41 (1 Low)n/mn/mn/m 21/09/2023
17:00:00
Luton A505 Roadside
Timeseries Graph
n/m61 (1 Low)n/mn/mn/m 22/09/2023
08:00:00
Norwich Lakenfields
Timeseries Graph
55 (2 Low)15 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
22/09/2023
10:00:00
Sandy Roadside
Timeseries Graph
n/m30 (1 Low)n/m4 (1 Low)12 (1 Low)
*1
22/09/2023
11:00:00
Sibton
Timeseries Graph
60 (2 Low)n/mn/mn/mn/m 21/09/2023
19:00:00
Southend-on-Sea
Timeseries Graph
57 (2 Low)37 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
22/09/2023
12:00:00
St Osyth
Timeseries Graph
68 (3 Low)9 (1 Low)n/m5 (1 Low)8 (1 Low)
*2
22/09/2023
11:00:00
Stanford-le-Hope Roadside
Timeseries Graph
n/m45 (1 Low)n/m7 (1 Low)12 (1 Low)
*1
22/09/2023
12:00:00
Thurrock
Timeseries Graph
49 (2 Low)50 (1 Low)3 (1 Low)5 (1 Low)9 (1 Low)
*2
22/09/2023
05:45:00
Weybourne
Timeseries Graph
53 (2 Low)n/mn/m4 (1 Low)8 (1 Low)
*2
22/09/2023
08:00:00
Wicken Fen
Timeseries Graph
49 (2 Low)9 (1 Low)2 (1 Low)3 (1 Low)7 (1 Low)
*2
21/09/2023
12:45:00

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Greater London

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Camden Kerbside
Timeseries Graph
n/m57 (1 Low)n/m7 (1 Low)11 (1 Low)
*1
22/09/2023
07:00:00
Ealing Horn Lane
Timeseries Graph
n/mn/mn/mn/m32 (2 Low)
*1
22/09/2023
16:00:00
Haringey Roadside
Timeseries Graph
n/m61 (1 Low)n/mn/mn/m 21/09/2023
22:00:00
London Bexley
Timeseries Graph
n/m31 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
22/09/2023
11:00:00
London Bloomsbury
Timeseries Graph
61 (2 Low)54 (1 Low)4 (1 Low)4 (1 Low)9 (1 Low)
*2
21/09/2023
18:15:00
London Eltham
Timeseries Graph
n/an/an/mn/an/a 04/07/2023
01:00:00
London Haringey Priory Park South
Timeseries Graph
41 (2 Low)41 (1 Low)n/mn/mn/m 21/09/2023
18:00:00
London Harlington
Timeseries Graph
59 (2 Low)50 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
22/09/2023
12:00:00
London Hillingdon
Timeseries Graph
32 (1 Low)65 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
22/09/2023
09:00:00
London Honor Oak Park
Timeseries Graph
n/mn/mn/m3 (1 Low)7 (1 Low)
*2
22/09/2023
12:00:00
London Marylebone Road
Timeseries Graph
17 (1 Low)95 (2 Low)n/a10 (1 Low)16 (1 Low)
*1
19/09/2023
16:00:00
London N. Kensington
Timeseries Graph
62 (2 Low)52 (1 Low)2 (1 Low)4 (1 Low)8 (1 Low)
*2
21/09/2023
17:00:00
London Teddington Bushy Park
Timeseries Graph
n/mn/mn/m4 (1 Low)8 (1 Low)
*2
22/09/2023
15:00:00
London Westminster
Timeseries Graph
60 (2 Low)49 (1 Low)n/m6 (1 Low)n/m 22/09/2023
11:00:00
Southwark A2 Old Kent Road
Timeseries Graph
n/m56 (1 Low)n/mn/m16 (1 Low)
*1
21/09/2023
20:00:00
Tower Hamlets Roadside
Timeseries Graph
n/m44 (1 Low)n/mn/mn/m 21/09/2023
21:00:00

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Highland

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Fort William
Timeseries Graph
59 (2 Low)16 (1 Low)n/mn/mn/m 21/09/2023
17:00:00
Inverness
Timeseries Graph
n/m19 (1 Low)n/m1 (1 Low)3 (1 Low)
*2
22/09/2023
16:00:00
Lerwick
Timeseries Graph
69 (3 Low)n/mn/mn/mn/m 22/09/2023
12:00:00
Strathvaich
Timeseries Graph
66 (2 Low)n/mn/mn/mn/m 21/09/2023
17:00:00

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North East

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Billingham
Timeseries Graph
n/m46 (1 Low)n/mn/mn/m 22/09/2023
08:00:00
Hartlepool St Abbs Walk
Timeseries Graph
63 (2 Low)16 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/09/2023
01:00:00
Middlesbrough
Timeseries Graph
73 (3 Low)25 (1 Low)3 (1 Low)2 (1 Low)8 (1 Low)
*1
22/09/2023
08:30:00
Newcastle Centre
Timeseries Graph
59 (2 Low)45 (1 Low)n/m5 (1 Low)13 (1 Low)
*1
22/09/2023
13:00:00
Newcastle Cradlewell Roadside
Timeseries Graph
n/m79 (2 Low)n/mn/m8 (1 Low)
*1
22/09/2023
09:00:00
Stockton-on-Tees A1305 Roadside
Timeseries Graph
n/m25 (1 Low)n/m2 (1 Low)n/m 22/09/2023
16:00:00
Stockton-on-Tees Eaglescliffe
Timeseries Graph
n/m21 (1 Low)n/m6 (1 Low)7 (1 Low)
*1
22/09/2023
01:00:00
Sunderland Silksworth
Timeseries Graph
67 (3 Low)17 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
22/09/2023
03:00:00
Sunderland Wessington Way
Timeseries Graph
n/m27 (1 Low)n/mn/mn/m 22/09/2023
08:00:00

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North East Scotland

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Aberdeen Erroll Park
Timeseries Graph
43 (2 Low)34 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
22/09/2023
01:00:00
Aberdeen Union Street Roadside
Timeseries Graph
n/m36 (1 Low)n/mn/mn/m 22/09/2023
10:00:00
Aberdeen Wellington Road
Timeseries Graph
n/m54 (1 Low)n/mn/mn/m 22/09/2023
08:00:00
Dundee Mains Loan
Timeseries Graph
n/m21 (1 Low)n/mn/mn/m 22/09/2023
10:00:00

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North Wales

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Aston Hill
Timeseries Graph
67 (3 Low)1 (1 Low)n/mn/mn/m 22/09/2023
04:00:00
Wrexham
Timeseries Graph
n/m37 (1 Low)3 (1 Low)3 (1 Low)7 (1 Low)
*2
21/09/2023
19:45:00

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North West & Merseyside

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Birkenhead Borough Road
Timeseries Graph
n/m25 (1 Low)n/mn/mn/m 21/09/2023
21:00:00
Blackburn Accrington Road
Timeseries Graph
n/m45 (1 Low)n/mn/mn/m 21/09/2023
22:00:00
Blackburn Audley Park
Timeseries Graph
57 (2 Low)n/mn/m3 (1 Low)6 (1 Low)
*2
22/09/2023
01:00:00
Blackpool Marton
Timeseries Graph
74 (3 Low)9 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
22/09/2023
16:00:00
Bury Whitefield Roadside
Timeseries Graph
n/m51 (1 Low)n/mn/m12 (1 Low)
*1
21/09/2023
20:00:00
Carlisle Morton A595
Timeseries Graph
n/m22 (1 Low)n/m7 (1 Low)8 (1 Low)
*1
22/09/2023
01:00:00
Crewe Coppenhall
Timeseries Graph
52 (2 Low)28 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
22/09/2023
03:00:00
Glazebury
Timeseries Graph
56 (2 Low)29 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
22/09/2023
08:00:00
Liverpool Speke
Timeseries Graph
59 (2 Low)34 (1 Low)5 (1 Low)3 (1 Low)9 (1 Low)
*1
21/09/2023
17:00:00
Manchester Piccadilly
Timeseries Graph
46 (2 Low)55 (1 Low)2 (1 Low)6 (1 Low)14 (1 Low)
*2
21/09/2023
24:15:
Manchester Sharston
Timeseries Graph
66 (2 Low)40 (1 Low)n/mn/mn/m 21/09/2023
17:00:00
Preston
Timeseries Graph
66 (2 Low)44 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
22/09/2023
03:00:00
Salford Eccles
Timeseries Graph
58 (2 Low)41 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
22/09/2023
16:00:00
Shaw Crompton Way
Timeseries Graph
n/m47 (1 Low)n/mn/mn/m 21/09/2023
17:00:00
St Helens Linkway
Timeseries Graph
n/m58 (1 Low)n/mn/m14 (1 Low)
*1
21/09/2023
19:00:00
Warrington
Timeseries Graph
n/m28 (1 Low)n/m3 (1 Low)10 (1 Low)
*1
22/09/2023
13:00:00
Widnes Milton Road
Timeseries Graph
n/m62 (1 Low)n/mn/mn/m 21/09/2023
17:00:00
Wigan Centre
Timeseries Graph
58 (2 Low)36 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
22/09/2023
13:00:00
Wirral Tranmere
Timeseries Graph
61 (2 Low)37 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
22/09/2023
16:00:00

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Northern Ireland

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Armagh Roadside
Timeseries Graph
n/m38 (1 Low)n/mn/m17 (2 Low)
*1
21/09/2023
21:00:00
Ballymena Antrim Road
Timeseries Graph
n/m33 (1 Low)n/mn/mn/m 21/09/2023
20:00:00
Ballymena Ballykeel
Timeseries Graph
n/m17 (1 Low)1 (1 Low)n/mn/m 21/09/2023
17:45:00
Belfast Centre
Timeseries Graph
62 (2 Low)27 (1 Low)1 (1 Low)4 (1 Low)8 (1 Low)
*2
21/09/2023
16:15:00
Belfast Stockman's Lane
Timeseries Graph
n/m75 (2 Low)n/mn/m19 (2 Low)
*1
22/09/2023
09:00:00
Derry Rosemount
Timeseries Graph
67 (3 Low)10 (1 Low)1 (1 Low)6 (1 Low)9 (1 Low)
*1
22/09/2023
13:15:00
Lough Navar
Timeseries Graph
64 (2 Low)n/mn/m3 (1 Low)7 (1 Low)
*2
22/09/2023
16:00:00

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Scottish Borders

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Dumfries
Timeseries Graph
n/m46 (1 Low)n/mn/mn/m 22/09/2023
10:00:00
Eskdalemuir
Timeseries Graph
54 (2 Low)2 (1 Low)n/mn/mn/m 21/09/2023
18:00:00
Peebles
Timeseries Graph
64 (2 Low)5 (1 Low)n/mn/mn/m 21/09/2023
19:00:00

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South East

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Brighton Preston Park
Timeseries Graph
65 (2 Low)15 (1 Low)n/m2 (1 Low)n/m 22/09/2023
09:00:00
Canterbury
Timeseries Graph
63 (2 Low)26 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/09/2023
15:00:00
Chatham Roadside
Timeseries Graph
n/m43 (1 Low)n/m2 (1 Low)15 (1 Low)
*1
22/09/2023
16:00:00
Chilbolton Observatory
Timeseries Graph
65 (2 Low)9 (1 Low)2 (1 Low)3 (1 Low)6 (1 Low)
*2
21/09/2023
17:15:00
Eastbourne
Timeseries Graph
n/mn/an/mn/an/a 27/07/2023
01:00:00
Horley
Timeseries Graph
n/mn/an/mn/mn/m 06/09/2023
21:00:00
Lullington Heath
Timeseries Graph
69 (3 Low)4 (1 Low)2 (1 Low)3 (1 Low)6 (1 Low)
*2
21/09/2023
20:15:00
Milton Keynes Civic Centre
Timeseries Graph
60 (2 Low)n/mn/m3 (1 Low)7 (1 Low)
*2
22/09/2023
09:00:00
Oxford Centre Roadside
Timeseries Graph
n/m65 (1 Low)n/mn/mn/m 21/09/2023
18:00:00
Oxford St Ebbes
Timeseries Graph
40 (2 Low)22 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/09/2023
02:00:00
Portsmouth
Timeseries Graph
67 (3 Low)49 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
22/09/2023
07:00:00
Portsmouth Anglesea Road
Timeseries Graph
n/m34 (1 Low)n/mn/m14 (1 Low)
*1
21/09/2023
18:00:00
Reading London Road
Timeseries Graph
n/m43 (1 Low)n/mn/m16 (1 Low)
*1
21/09/2023
21:00:00
Reading New Town
Timeseries Graph
41 (2 Low)28 (1 Low)n/m3 (1 Low)8 (1 Low)
*2
22/09/2023
10:00:00
Rochester Stoke
Timeseries Graph
64 (2 Low)23 (1 Low)2 (1 Low)4 (1 Low)10 (1 Low)
*2
22/09/2023
11:45:00
Southampton A33
Timeseries Graph
n/m50 (1 Low)n/mn/m13 (1 Low)
*1
21/09/2023
21:00:00
Southampton Centre
Timeseries Graph
45 (2 Low)55 (1 Low)4 (1 Low)4 (1 Low)9 (1 Low)
*2
21/09/2023
17:00:00
Storrington Roadside
Timeseries Graph
n/m29 (1 Low)n/mn/mn/m 21/09/2023
21:00:00
Worthing A27 Roadside
Timeseries Graph
n/m41 (1 Low)n/m4 (1 Low)n/m 22/09/2023
01:00:00

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South Wales

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Cardiff Centre
Timeseries Graph
54 (2 Low)32 (1 Low)n/a7 (1 Low)10 (1 Low)
*1
20/09/2023
18:00:00
Cardiff Newport Road
Timeseries Graph
n/m36 (1 Low)n/mn/m10 (1 Low)
*1
21/09/2023
22:00:00
Chepstow A48
Timeseries Graph
n/m71 (2 Low)n/m5 (1 Low)20 (2 Low)
*1
22/09/2023
15:00:00
Cwmbran Crownbridge
Timeseries Graph
45 (2 Low)20 (1 Low)n/mn/mn/m 21/09/2023
18:00:00
Hafod-yr-ynys Roadside
Timeseries Graph
n/mn/an/mn/mn/m 14/09/2023
17:00:00
Narberth
Timeseries Graph
55 (2 Low)5 (1 Low)2 (1 Low)2 (1 Low)6 (1 Low)
*2
21/09/2023
19:15:00
Newport
Timeseries Graph
n/m31 (1 Low)n/m4 (1 Low)10 (1 Low)
*2
22/09/2023
01:00:00
Port Talbot Margam
Timeseries Graph
56 (2 Low)27 (1 Low)3 (1 Low)8 (1 Low)23 (2 Low)
*3
21/09/2023
17:30:00
Swansea Roadside
Timeseries Graph
n/mn/an/mn/an/a 13/09/2023
01:00:00

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South West

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Barnstaple A39
Timeseries Graph
n/mn/mn/m8 (1 Low)9 (1 Low)
*1
22/09/2023
01:00:00
Bath A4 Roadside
Timeseries Graph
n/m46 (1 Low)n/mn/mn/m 21/09/2023
18:00:00
Bournemouth
Timeseries Graph
80 (3 Low)26 (1 Low)n/m5 (1 Low)n/m 22/09/2023
09:00:00
Bristol St Paul's
Timeseries Graph
63 (2 Low)42 (1 Low)n/m6 (1 Low)12 (1 Low)
*1
22/09/2023
12:00:00
Bristol Temple Way
Timeseries Graph
n/m46 (1 Low)n/mn/m12 (1 Low)
*1
22/09/2023
09:00:00
Charlton Mackrell
Timeseries Graph
66 (2 Low)14 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/09/2023
01:00:00
Christchurch Barrack Road
Timeseries Graph
n/m29 (1 Low)n/m5 (1 Low)n/m 22/09/2023
01:00:00
Exeter Roadside
Timeseries Graph
42 (2 Low)48 (1 Low)n/mn/mn/m 22/09/2023
16:00:00
Honiton
Timeseries Graph
59 (2 Low)29 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
22/09/2023
01:00:00
Plymouth Centre
Timeseries Graph
64 (2 Low)61 (1 Low)n/m4 (1 Low)10 (1 Low)
*2
22/09/2023
01:00:00
Plymouth Tavistock Road
Timeseries Graph
n/m55 (1 Low)n/mn/mn/m 22/09/2023
08:00:00
Saltash Callington Road
Timeseries Graph
n/mn/mn/m1 (1 Low)6 (1 Low)
*1
22/09/2023
16:00:00
Swindon Walcot
Timeseries Graph
60 (2 Low)26 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
22/09/2023
03:00:00
Yarner Wood
Timeseries Graph
61 (2 Low)1 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
22/09/2023
01:00:00

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West Ireland

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Mace Head
Timeseries Graph
78 (3 Low)n/mn/mn/mn/m 22/09/2023
15:00:00

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West Midlands

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Birmingham A4540 Roadside
Timeseries Graph
42 (2 Low)69 (2 Low)n/m5 (1 Low)15 (1 Low)
*2
22/09/2023
02:00:00
Birmingham Ladywood
Timeseries Graph
62 (2 Low)41 (1 Low)4 (1 Low)3 (1 Low)7 (1 Low)
*2
21/09/2023
16:15:00
Burton-on-Trent Horninglow
Timeseries Graph
54 (2 Low)38 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
22/09/2023
06:00:00
Cannock A5190 Roadside
Timeseries Graph
n/m46 (1 Low)n/mn/mn/m 22/09/2023
08:00:00
Coventry Allesley
Timeseries Graph
52 (2 Low)29 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
22/09/2023
08:00:00
Coventry Binley Road
Timeseries Graph
n/m46 (1 Low)n/mn/m13 (1 Low)
*1
21/09/2023
18:00:00
Leamington Spa
Timeseries Graph
63 (2 Low)31 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
22/09/2023
08:00:00
Leamington Spa Rugby Road
Timeseries Graph
n/m20 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/09/2023
08:00:00
Leominster
Timeseries Graph
61 (2 Low)15 (1 Low)n/mn/mn/m 21/09/2023
19:00:00
Oldbury Birmingham Road
Timeseries Graph
n/m60 (1 Low)n/mn/mn/m 22/09/2023
08:00:00
Stoke-on-Trent A50 Roadside
Timeseries Graph
n/m79 (2 Low)n/mn/m17 (2 Low)
*1
21/09/2023
21:00:00
Stoke-on-Trent Centre
Timeseries Graph
51 (2 Low)67 (1 Low)n/m5 (1 Low)11 (1 Low)
*2
22/09/2023
07:00:00
Telford Hollinswood
Timeseries Graph
67 (3 Low)25 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
22/09/2023
01:00:00
Walsall Woodlands
Timeseries Graph
62 (2 Low)34 (1 Low)n/mn/mn/m 21/09/2023
18:00:00
West Bromwich Kenrick Park
Timeseries Graph
58 (2 Low)49 (1 Low)n/mn/mn/m 21/09/2023
18:00:00

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Yorkshire & Humberside

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Barnsley Gawber
Timeseries Graph
62 (2 Low)24 (1 Low)3 (1 Low)4 (1 Low)7 (1 Low)
*2
22/09/2023
05:45:00
Bradford Mayo Avenue
Timeseries Graph
n/m43 (1 Low)n/mn/mn/m 21/09/2023
20:00:00
Dewsbury Ashworth Grove
Timeseries Graph
63 (2 Low)53 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
22/09/2023
12:00:00
Doncaster A630 Cleveland Street
Timeseries Graph
n/m49 (1 Low)n/mn/mn/m 22/09/2023
08:00:00
High Muffles
Timeseries Graph
66 (2 Low)4 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/09/2023
01:00:00
Hull Freetown
Timeseries Graph
56 (2 Low)41 (1 Low)5 (1 Low)5 (1 Low)12 (1 Low)
*2
22/09/2023
09:45:00
Hull Holderness Road
Timeseries Graph
n/m62 (1 Low)n/mn/m14 (1 Low)
*1
21/09/2023
18:00:00
Immingham Woodlands Avenue
Timeseries Graph
62 (2 Low)23 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
22/09/2023
09:00:00
Leeds Centre
Timeseries Graph
55 (2 Low)13 (1 Low)3 (1 Low)6 (1 Low)10 (1 Low)
*2
21/09/2023
23:45:00
Leeds Headingley Kerbside
Timeseries Graph
n/m50 (1 Low)n/m6 (1 Low)14 (1 Low)
*1
22/09/2023
12:00:00
Scunthorpe Town
Timeseries Graph
n/m34 (1 Low)3 (1 Low)n/m19 (2 Low)
*1
22/09/2023
06:45:00
Sheffield Barnsley Road
Timeseries Graph
n/m52 (1 Low)n/m6 (1 Low)n/m 22/09/2023
03:00:00
Sheffield Devonshire Green
Timeseries Graph
52 (2 Low)36 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
22/09/2023
01:00:00
Sheffield Tinsley
Timeseries Graph
50 (2 Low)44 (1 Low)n/m5 (1 Low)13 (1 Low)
*2
22/09/2023
01:00:00
York Bootham
Timeseries Graph
53 (2 Low)28 (1 Low)n/m7 (1 Low)13 (1 Low)
*1
22/09/2023
12:00:00
York Fishergate
Timeseries Graph
n/m28 (1 Low)n/m7 (1 Low)14 (1 Low)
*1
22/09/2023
12:00:00

Legend

  • n/m means that the pollutant is not measured at that site
  • n/a means that no data were recorded for the period
  • *1: measurements are PM10 BAM 1020 heated
  • *2: measurements are PM10 FIDAS
  • *3: measurements are PM10 SEQ 47/50