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 3am Thu 20th Nov 2025

Filter by region:

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
76 (3 Low)n/mn/m1 (1 Low)2 (1 Low)
*2
20/11/2025
03:00
Bush Estate
Timeseries Graph
78 (3 Low)4 (1 Low)n/mn/mn/m 19/11/2025
14:00
Dumbarton Roadside
Timeseries Graph
n/m42 (1 Low)n/mn/mn/m 19/11/2025
21:00
Edinburgh Nicolson Street
Timeseries Graph
n/m60 (1 Low)n/mn/mn/m 19/11/2025
20:00
Edinburgh St Leonards
Timeseries Graph
71 (3 Low)38 (1 Low)1 (1 Low)3 (1 Low)6 (1 Low)
*2
20/11/2025
01:30
Glasgow Great Western Road
Timeseries Graph
n/m65 (1 Low)n/mn/mn/m 19/11/2025
09:00
Glasgow High Street
Timeseries Graph
n/m55 (1 Low)n/m3 (1 Low)10 (1 Low)
*2
20/11/2025
03:00
Glasgow Kerbside
Timeseries Graph
n/m84 (2 Low)n/mn/mn/m 19/11/2025
09:00
Glasgow Townhead
Timeseries Graph
72 (3 Low)37 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
20/11/2025
03:00
Grangemouth
Timeseries Graph
n/m18 (1 Low)3 (1 Low)6 (1 Low)6 (1 Low)
*1
19/11/2025
10:15
Grangemouth Moray
Timeseries Graph
n/m15 (1 Low)n/mn/mn/m 19/11/2025
08:00
Greenock A8 Roadside
Timeseries Graph
n/m45 (1 Low)n/m2 (1 Low)7 (1 Low)
*2
19/11/2025
24:00

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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
71 (3 Low)4 (1 Low)n/m2 (1 Low)3 (1 Low)
*2
19/11/2025
24:00
Chesterfield Roadside
Timeseries Graph
n/m11 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
19/11/2025
24:00
Derby St Alkmund's Way
Timeseries Graph
n/m50 (1 Low)n/m3 (1 Low)n/m 19/11/2025
24:00
Derby Stockbrook Park
Timeseries Graph
66 (2 Low)n/mn/m3 (1 Low)5 (1 Low)
*2
19/11/2025
24:00
Ladybower
Timeseries Graph
75 (3 Low)3 (1 Low)2 (1 Low)1 (1 Low)2 (1 Low)
*2
19/11/2025
10:15
Leicester A594 Roadside
Timeseries Graph
n/m58 (1 Low)n/m4 (1 Low)12 (1 Low)
*2
20/11/2025
01:00
Leicester University
Timeseries Graph
56 (2 Low)28 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
20/11/2025
01:00
Lincoln Canwick Road
Timeseries Graph
n/m52 (1 Low)n/mn/mn/m 19/11/2025
07:00
Loughborough Thorpe Acre
Timeseries Graph
n/mn/mn/m3 (1 Low)5 (1 Low)
*2
20/11/2025
01:00
Mansfield Ladybrook
Timeseries Graph
n/mn/mn/m4 (1 Low)6 (1 Low)
*2
19/11/2025
24:00
Northampton Spring Park
Timeseries Graph
65 (2 Low)12 (1 Low)n/mn/an/m 17/11/2025
22:00
Nottingham Bilborough
Timeseries Graph
n/mn/mn/m3 (1 Low)4 (1 Low)
*2
19/11/2025
24:00
Nottingham Kenmore Gardens
Timeseries Graph
65 (2 Low)30 (1 Low)1 (1 Low)3 (1 Low)5 (1 Low)
*2
20/11/2025
02:45
Nottingham Western Boulevard
Timeseries Graph
n/m37 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
19/11/2025
24:00
Tallington
Timeseries Graph
70 (3 Low)n/mn/m3 (1 Low)4 (1 Low)
*2
19/11/2025
24:00
Toft Newton
Timeseries Graph
66 (2 Low)6 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
19/11/2025
24:00

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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/m13 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
19/11/2025
24:00
Cambridge King's Hedges
Timeseries Graph
n/mn/mn/m3 (1 Low)5 (1 Low)
*2
19/11/2025
24:00
Cambridge Roadside
Timeseries Graph
n/m38 (1 Low)n/mn/mn/m 19/11/2025
18:00
Luton A505 Roadside
Timeseries Graph
n/m38 (1 Low)n/m3 (1 Low)n/m 20/11/2025
02:00
Norwich Lakenfields
Timeseries Graph
68 (3 Low)11 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
19/11/2025
24:00
Peterborough Garton End
Timeseries Graph
n/mn/mn/m3 (1 Low)4 (1 Low)
*2
19/11/2025
24:00
Sibton
Timeseries Graph
71 (3 Low)n/mn/m3 (1 Low)5 (1 Low)
*2
19/11/2025
24:00
Southend Shoeburyness
Timeseries Graph
n/mn/mn/m3 (1 Low)4 (1 Low)
*2
19/11/2025
24:00
Southend-on-Sea
Timeseries Graph
60 (2 Low)12 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
19/11/2025
24:00
St Osyth
Timeseries Graph
70 (3 Low)7 (1 Low)n/m3 (1 Low)4 (1 Low)
*2
19/11/2025
24:00
Stanford-le-Hope Roadside
Timeseries Graph
n/m28 (1 Low)n/m7 (1 Low)n/a 20/11/2025
01:00
Thurrock
Timeseries Graph
58 (2 Low)26 (1 Low)3 (1 Low)3 (1 Low)5 (1 Low)
*2
19/11/2025
03:30
Weybourne
Timeseries Graph
83 (3 Low)n/mn/m9 (1 Low)17 (2 Low)
*2
20/11/2025
03:00
Wicken Fen
Timeseries Graph
64 (2 Low)8 (1 Low)2 (1 Low)3 (1 Low)5 (1 Low)
*2
19/11/2025
13:45

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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/m70 (2 Low)n/m9 (1 Low)15 (1 Low)
*1
20/11/2025
03:00
Ealing Horn Lane
Timeseries Graph
n/mn/mn/mn/m12 (1 Low)
*1
20/11/2025
03:00
Haringey Roadside
Timeseries Graph
n/m23 (1 Low)n/mn/mn/m 19/11/2025
20:00
London Bexley
Timeseries Graph
n/m23 (1 Low)n/m4 (1 Low)6 (1 Low)
*2
20/11/2025
02:00
London Bloomsbury
Timeseries Graph
41 (2 Low)32 (1 Low)2 (1 Low)3 (1 Low)6 (1 Low)
*2
19/11/2025
06:15
London Farringdon Street
Timeseries Graph
n/m37 (1 Low)n/m4 (1 Low)n/m 20/11/2025
02:00
London Haringey Priory Park South
Timeseries Graph
60 (2 Low)16 (1 Low)n/m3 (1 Low)4 (1 Low)
*2
19/11/2025
24:00
London Harlington
Timeseries Graph
60 (2 Low)20 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
18/11/2025
24:00
London Hillingdon
Timeseries Graph
59 (2 Low)18 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
20/11/2025
02:00
London Honor Oak Park
Timeseries Graph
63 (2 Low)n/mn/m3 (1 Low)5 (1 Low)
*2
19/11/2025
24:00
London Marylebone Road
Timeseries Graph
54 (2 Low)26 (1 Low)4 (1 Low)5 (1 Low)8 (1 Low)
*1
19/11/2025
15:00
London N. Kensington
Timeseries Graph
62 (2 Low)15 (1 Low)2 (1 Low)3 (1 Low)5 (1 Low)
*2
19/11/2025
08:15
London Norbury Manor School
Timeseries Graph
n/mn/mn/m3 (1 Low)5 (1 Low)
*2
19/11/2025
24:00
London Teddington Bushy Park
Timeseries Graph
n/mn/mn/m3 (1 Low)6 (1 Low)
*2
20/11/2025
02:00
London Westminster
Timeseries Graph
54 (2 Low)26 (1 Low)n/mn/an/m 31/12/2023
24:00
Southwark A2 Old Kent Road
Timeseries Graph
n/m43 (1 Low)n/mn/m12 (1 Low)
*1
19/11/2025
08:00

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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
71 (3 Low)51 (1 Low)n/mn/mn/m 19/11/2025
04:00
Inverness
Timeseries Graph
n/m31 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
20/11/2025
03:00
Lerwick
Timeseries Graph
78 (3 Low)n/mn/mn/mn/m 19/11/2025
15:00
Strathvaich
Timeseries Graph
84 (3 Low)n/mn/mn/mn/m 19/11/2025
11:00

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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
Hartlepool St Abbs Walk
Timeseries Graph
72 (3 Low)15 (1 Low)n/m3 (1 Low)8 (1 Low)
*2
19/11/2025
24:00
Kielder Water
Timeseries Graph
68 (3 Low)n/mn/m1 (1 Low)2 (1 Low)
*2
20/11/2025
01:00
Middlesbrough
Timeseries Graph
n/an/an/an/an/a 16/11/2025
17:45
Newcastle Centre
Timeseries Graph
73 (3 Low)22 (1 Low)n/m4 (1 Low)10 (1 Low)
*1
19/11/2025
24:00
Newcastle Cradlewell Roadside
Timeseries Graph
n/m27 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
19/11/2025
24:00
Stockton-on-Tees A1305 Roadside
Timeseries Graph
n/m17 (1 Low)n/m2 (1 Low)n/m 20/11/2025
03:00
Stockton-on-Tees Eaglescliffe
Timeseries Graph
n/m23 (1 Low)n/m4 (1 Low)7 (1 Low)
*1
20/11/2025
01:00
Sunderland Silksworth
Timeseries Graph
n/a25 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
19/11/2025
24:00
Sunderland Wessington Way
Timeseries Graph
n/m22 (1 Low)n/m3 (1 Low)n/m 19/11/2025
24:00

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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
n/a16 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
20/11/2025
03:00
Aberdeen Wellington Road
Timeseries Graph
n/m49 (1 Low)n/mn/mn/m 19/11/2025
09:00
Dundee Mains Loan
Timeseries Graph
n/m14 (1 Low)n/mn/mn/m 19/11/2025
09:00
Perth Glasgow Road
Timeseries Graph
n/m18 (1 Low)n/mn/mn/m 19/11/2025
09:00

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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
75 (3 Low)2 (1 Low)n/mn/mn/m 19/11/2025
19:00
Wrexham
Timeseries Graph
n/m51 (1 Low)3 (1 Low)3 (1 Low)6 (1 Low)
*2
19/11/2025
16:45

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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/m27 (1 Low)n/m3 (1 Low)n/m 20/11/2025
03:00
Blackburn Accrington Road
Timeseries Graph
n/m37 (1 Low)n/mn/mn/m 19/11/2025
18:00
Blackburn Audley Park
Timeseries Graph
61 (2 Low)n/mn/m2 (1 Low)5 (1 Low)
*2
20/11/2025
03:00
Blackpool Marton
Timeseries Graph
69 (3 Low)13 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
20/11/2025
02:00
Blackpool Whitegate Drive
Timeseries Graph
n/mn/mn/m3 (1 Low)n/m 20/11/2025
03:00
Bury Whitefield Roadside
Timeseries Graph
n/m23 (1 Low)n/mn/m10 (1 Low)
*1
19/11/2025
24:00
Carlisle Morton A595
Timeseries Graph
n/m40 (1 Low)n/m5 (1 Low)10 (1 Low)
*1
19/11/2025
24:00
Crewe Coppenhall
Timeseries Graph
64 (2 Low)33 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
19/11/2025
24:00
Glazebury
Timeseries Graph
60 (2 Low)18 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
20/11/2025
03:00
Liverpool Speke
Timeseries Graph
65 (2 Low)27 (1 Low)2 (1 Low)4 (1 Low)11 (1 Low)
*1
19/11/2025
23:45
Liverpool Thirlmere Park
Timeseries Graph
70 (3 Low)n/mn/m2 (1 Low)5 (1 Low)
*2
20/11/2025
03:00
Manchester Piccadilly
Timeseries Graph
55 (2 Low)37 (1 Low)4 (1 Low)5 (1 Low)8 (1 Low)
*2
19/11/2025
13:00
Manchester Sharston
Timeseries Graph
58 (2 Low)41 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
19/11/2025
24:00
Middlewich St Michael's Way
Timeseries Graph
n/mn/mn/m4 (1 Low)n/m 19/11/2025
24:00
Preston
Timeseries Graph
60 (2 Low)44 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
20/11/2025
03:00
Salford Eccles
Timeseries Graph
71 (3 Low)43 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
19/11/2025
24:00
Shaw Crompton Way
Timeseries Graph
n/m34 (1 Low)n/mn/mn/m 19/11/2025
17:00
St Helens Linkway
Timeseries Graph
n/m58 (1 Low)n/mn/m9 (1 Low)
*1
19/11/2025
21:00
Tameside A635 Manchester Road
Timeseries Graph
n/mn/mn/m3 (1 Low)n/m 19/11/2025
24:00
Warrington
Timeseries Graph
n/m17 (1 Low)n/m5 (1 Low)8 (1 Low)
*1
20/11/2025
03:00
Widnes Milton Road
Timeseries Graph
n/m59 (1 Low)n/mn/mn/m 19/11/2025
12:00
Wigan Centre
Timeseries Graph
64 (2 Low)45 (1 Low)n/m4 (1 Low)6 (1 Low)
*2
20/11/2025
03:00
Wirral Tranmere
Timeseries Graph
68 (3 Low)22 (1 Low)n/m2 (1 Low)6 (1 Low)
*2
20/11/2025
03:00

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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/m69 (2 Low)n/mn/m10 (1 Low)
*1
19/11/2025
19:00
Ballymena Antrim Road
Timeseries Graph
n/m59 (1 Low)n/mn/mn/m 19/11/2025
08:00
Ballymena Ballykeel
Timeseries Graph
n/m38 (1 Low)44 (1 Low)n/mn/m 19/11/2025
19:00
Belfast Centre
Timeseries Graph
67 (3 Low)29 (1 Low)2 (1 Low)3 (1 Low)6 (1 Low)
*2
19/11/2025
17:00
Belfast Stockman's Lane
Timeseries Graph
n/m77 (2 Low)n/mn/m10 (1 Low)
*1
18/11/2025
15:00
Derry Rosemount
Timeseries Graph
77 (3 Low)49 (1 Low)21 (1 Low)5 (1 Low)11 (1 Low)
*1
19/11/2025
23:00
Lough Navar
Timeseries Graph
63 (2 Low)n/mn/m3 (1 Low)5 (1 Low)
*2
20/11/2025
01:00

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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/m37 (1 Low)n/mn/mn/m 19/11/2025
17:00
Eskdalemuir
Timeseries Graph
73 (3 Low)2 (1 Low)n/mn/mn/m 19/11/2025
15:00
Peebles
Timeseries Graph
74 (3 Low)18 (1 Low)n/mn/mn/m 19/11/2025
16:00

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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
Aylesbury A4157
Timeseries Graph
n/mn/mn/m3 (1 Low)n/m 19/11/2025
24:00
Brighton Preston Park
Timeseries Graph
53 (2 Low)10 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
20/11/2025
03:00
Chatham Roadside
Timeseries Graph
n/m38 (1 Low)n/m5 (1 Low)12 (1 Low)
*1
19/11/2025
24:00
Chilbolton Observatory
Timeseries Graph
63 (2 Low)9 (1 Low)7 (1 Low)3 (1 Low)4 (1 Low)
*2
19/11/2025
16:30
Eastbourne
Timeseries Graph
62 (2 Low)11 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
20/11/2025
03:00
Farnborough Cherrywood
Timeseries Graph
n/mn/mn/m3 (1 Low)5 (1 Low)
*2
19/11/2025
24:00
Horley
Timeseries Graph
n/m14 (1 Low)n/m8 (1 Low)11 (1 Low)
*2
18/11/2025
24:00
Lullington Heath
Timeseries Graph
67 (3 Low)10 (1 Low)6 (1 Low)2 (1 Low)4 (1 Low)
*2
19/11/2025
16:00
Maidstone Upper Stone Street
Timeseries Graph
n/mn/mn/m5 (1 Low)8 (1 Low)
*2
19/11/2025
24:00
Milton Keynes Civic Centre
Timeseries Graph
62 (2 Low)n/mn/m3 (1 Low)5 (1 Low)
*2
20/11/2025
01:00
Oxford Centre Roadside
Timeseries Graph
n/mn/an/mn/mn/m 19/08/2025
16:00
Oxford St Ebbes
Timeseries Graph
60 (2 Low)20 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
20/11/2025
03:00
Portsmouth
Timeseries Graph
54 (2 Low)19 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
20/11/2025
03:00
Portsmouth Anglesea Road
Timeseries Graph
n/m24 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
20/11/2025
03:00
Reading London Road
Timeseries Graph
n/m26 (1 Low)n/mn/m8 (1 Low)
*1
19/11/2025
19:00
Reading New Town
Timeseries Graph
57 (2 Low)18 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
19/11/2025
24:00
Reading Rose Kiln Lane
Timeseries Graph
n/mn/mn/m3 (1 Low)n/m 20/11/2025
02:00
Rochester Stoke
Timeseries Graph
69 (3 Low)12 (1 Low)3 (1 Low)3 (1 Low)4 (1 Low)
*2
19/11/2025
06:30
Slough Windmill Bath Road
Timeseries Graph
n/mn/mn/m4 (1 Low)12 (1 Low)
*2
19/11/2025
24:00
Southampton A33
Timeseries Graph
n/m22 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
20/11/2025
03:00
Southampton Centre
Timeseries Graph
56 (2 Low)22 (1 Low)2 (1 Low)3 (1 Low)6 (1 Low)
*2
19/11/2025
16:15
Storrington Roadside
Timeseries Graph
n/m51 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
20/11/2025
03:00
Worthing A27 Roadside
Timeseries Graph
n/m36 (1 Low)n/m10 (1 Low)n/m 20/11/2025
03:00
Worthing East Ten Acres
Timeseries Graph
n/mn/mn/m3 (1 Low)5 (1 Low)
*2
19/11/2025
24:00

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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
66 (2 Low)45 (1 Low)2 (1 Low)5 (1 Low)8 (1 Low)
*1
19/11/2025
18:45
Cardiff Newport Road
Timeseries Graph
n/m51 (1 Low)n/mn/m11 (1 Low)
*1
19/11/2025
20:00
Chepstow A48
Timeseries Graph
n/m40 (1 Low)n/m6 (1 Low)12 (1 Low)
*1
20/11/2025
02:00
Cwmbran Crownbridge
Timeseries Graph
76 (3 Low)10 (1 Low)n/mn/mn/m 19/11/2025
15:00
Hafod-yr-ynys Hill Roadside
Timeseries Graph
n/m71 (2 Low)n/mn/mn/m 19/11/2025
19:00
Narberth
Timeseries Graph
76 (3 Low)1 (1 Low)1 (1 Low)2 (1 Low)4 (1 Low)
*2
19/11/2025
11:45
Newport
Timeseries Graph
n/m39 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
20/11/2025
03:00
Port Talbot Margam
Timeseries Graph
70 (3 Low)45 (1 Low)2 (1 Low)4 (1 Low)6 (1 Low)
*3
19/11/2025
19:15
Swansea Roadside
Timeseries Graph
n/m47 (1 Low)n/m4 (1 Low)7 (1 Low)
*1
19/11/2025
24:00

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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/m3 (1 Low)12 (1 Low)
*2
19/11/2025
24:00
Bath A4 Roadside
Timeseries Graph
n/m43 (1 Low)n/mn/mn/m 19/11/2025
23:00
Bournemouth
Timeseries Graph
59 (2 Low)15 (1 Low)n/m7 (1 Low)n/m 20/11/2025
03:00
Bristol St Paul's
Timeseries Graph
63 (2 Low)37 (1 Low)n/m4 (1 Low)10 (1 Low)
*1
19/11/2025
24:00
Bristol Temple Way
Timeseries Graph
n/m42 (1 Low)n/m4 (1 Low)10 (1 Low)
*2
20/11/2025
03:00
Charlton Mackrell
Timeseries Graph
69 (3 Low)4 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
20/11/2025
01:00
Cheltenham A40 Gloucester Road
Timeseries Graph
n/mn/mn/m8 (1 Low)n/m 20/11/2025
03:00
Christchurch Barrack Road
Timeseries Graph
n/m29 (1 Low)n/m5 (1 Low)n/m 20/11/2025
03:00
Exeter Roadside
Timeseries Graph
61 (2 Low)53 (1 Low)n/mn/mn/m 19/11/2025
07:00
Gloucester Tredworth
Timeseries Graph
n/mn/mn/m4 (1 Low)8 (1 Low)
*2
20/11/2025
03:00
Honiton
Timeseries Graph
67 (3 Low)14 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
20/11/2025
03:00
Plymouth Centre
Timeseries Graph
65 (2 Low)71 (2 Low)n/m3 (1 Low)9 (1 Low)
*2
19/11/2025
24:00
Plymouth Tavistock Road
Timeseries Graph
n/m61 (1 Low)n/mn/mn/m 19/11/2025
18:00
Saltash Callington Road
Timeseries Graph
n/mn/mn/m2 (1 Low)9 (1 Low)
*1
20/11/2025
03:00
Swindon Walcot
Timeseries Graph
58 (2 Low)26 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
20/11/2025
03:00
Yarner Wood
Timeseries Graph
71 (3 Low)2 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
19/11/2025
24:00

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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
83 (3 Low)n/mn/mn/mn/m 19/11/2025
08:00

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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
51 (2 Low)41 (1 Low)n/m3 (1 Low)8 (1 Low)
*2
20/11/2025
01:00
Birmingham Hall Green
Timeseries Graph
59 (2 Low)29 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
20/11/2025
02:00
Birmingham Ladywood
Timeseries Graph
59 (2 Low)21 (1 Low)2 (1 Low)3 (1 Low)5 (1 Low)
*2
19/11/2025
11:45
Birmingham University
Timeseries Graph
n/mn/mn/mn/an/a 14/11/2025
07:00
Burton-on-Trent Horninglow
Timeseries Graph
69 (3 Low)18 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
20/11/2025
02:00
Cannock A5190 Roadside
Timeseries Graph
n/m33 (1 Low)n/m3 (1 Low)n/m 20/11/2025
02:00
Coventry Allesley
Timeseries Graph
61 (2 Low)18 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
19/11/2025
24:00
Coventry Binley Road
Timeseries Graph
n/m30 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
19/11/2025
24:00
Leamington Spa
Timeseries Graph
60 (2 Low)26 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
20/11/2025
02:00
Leamington Spa Rugby Road
Timeseries Graph
n/m21 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
20/11/2025
02:00
Leominster
Timeseries Graph
72 (3 Low)18 (1 Low)n/mn/mn/m 19/11/2025
15:00
Oldbury Birmingham Road
Timeseries Graph
n/m40 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
20/11/2025
01:00
Shrewsbury Underdale
Timeseries Graph
n/mn/mn/m4 (1 Low)7 (1 Low)
*2
20/11/2025
03:00
Stoke-on-Trent A50 Roadside
Timeseries Graph
n/m34 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
19/11/2025
24:00
Stoke-on-Trent Centre
Timeseries Graph
n/an/an/m4 (1 Low)7 (1 Low)
*2
19/11/2025
24:00
Telford Hollinswood
Timeseries Graph
60 (2 Low)41 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
20/11/2025
02:00
Walsall Woodlands
Timeseries Graph
63 (2 Low)17 (1 Low)n/mn/mn/m 19/11/2025
19:00
West Bromwich Kenrick Park
Timeseries Graph
57 (2 Low)30 (1 Low)n/mn/mn/m 19/11/2025
08:00
Worcester Tolladine
Timeseries Graph
n/mn/mn/m3 (1 Low)5 (1 Low)
*2
20/11/2025
03:00

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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
65 (2 Low)13 (1 Low)2 (1 Low)2 (1 Low)4 (1 Low)
*2
19/11/2025
11:45
Bradford Mayo Avenue
Timeseries Graph
n/m29 (1 Low)n/mn/mn/m 19/11/2025
07:00
Bradford Shipley Airedale Road
Timeseries Graph
n/mn/mn/m3 (1 Low)13 (1 Low)
*2
20/11/2025
03:00
Dewsbury Ashworth Grange
Timeseries Graph
69 (3 Low)16 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
20/11/2025
03:00
Doncaster A630 Cleveland Street
Timeseries Graph
n/m29 (1 Low)n/m2 (1 Low)n/m 19/11/2025
24:00
Harrogate Woodlands
Timeseries Graph
n/mn/mn/m2 (1 Low)3 (1 Low)
*2
20/11/2025
03:00
High Muffles
Timeseries Graph
n/a7 (1 Low)n/m2 (1 Low)3 (1 Low)
*2
20/11/2025
03:00
Hull Freetown
Timeseries Graph
70 (3 Low)13 (1 Low)1 (1 Low)2 (1 Low)5 (1 Low)
*2
18/11/2025
15:15
Hull Holderness Road
Timeseries Graph
n/m27 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
19/11/2025
24:00
Immingham Woodlands Avenue
Timeseries Graph
71 (3 Low)26 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
19/11/2025
24:00
Leeds Centre
Timeseries Graph
64 (2 Low)27 (1 Low)1 (1 Low)2 (1 Low)5 (1 Low)
*2
19/11/2025
07:45
Leeds Headingley Kerbside
Timeseries Graph
n/m40 (1 Low)n/m6 (1 Low)15 (1 Low)
*1
20/11/2025
03:00
Rotherham East Dene
Timeseries Graph
n/mn/mn/m2 (1 Low)4 (1 Low)
*2
19/11/2025
24:00
Scunthorpe Town
Timeseries Graph
n/m16 (1 Low)2 (1 Low)5 (1 Low)4 (1 Low)
*1
19/11/2025
15:15
Sheffield Barnsley Road
Timeseries Graph
n/m33 (1 Low)n/m5 (1 Low)n/m 19/11/2025
24:00
Sheffield Devonshire Green
Timeseries Graph
63 (2 Low)14 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
19/11/2025
24:00
Sheffield Tinsley
Timeseries Graph
55 (2 Low)39 (1 Low)n/m4 (1 Low)6 (1 Low)
*2
19/11/2025
24:00
Wakefield Alverthorpe
Timeseries Graph
n/mn/mn/m2 (1 Low)5 (1 Low)
*2
19/11/2025
24:00
York Bootham
Timeseries Graph
53 (2 Low)8 (1 Low)n/m3 (1 Low)7 (1 Low)
*1
19/11/2025
24:00
York Fishergate
Timeseries Graph
n/m37 (1 Low)n/m2 (1 Low)9 (1 Low)
*1
19/11/2025
24:00

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