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 11am Fri 14th Nov 2025

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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
78 (3 Low)n/mn/m3 (1 Low)4 (1 Low)
*2
14/11/2025
09:00
Bush Estate
Timeseries Graph
81 (3 Low)11 (1 Low)n/mn/mn/m 13/11/2025
13:00
Dumbarton Roadside
Timeseries Graph
n/m17 (1 Low)n/mn/mn/m 13/11/2025
15:00
Edinburgh Nicolson Street
Timeseries Graph
n/m11 (1 Low)n/mn/mn/m 13/11/2025
14:00
Edinburgh St Leonards
Timeseries Graph
84 (3 Low)9 (1 Low)1 (1 Low)4 (1 Low)10 (1 Low)
*2
14/11/2025
01:30
Glasgow Great Western Road
Timeseries Graph
n/m10 (1 Low)n/mn/mn/m 13/11/2025
14:00
Glasgow High Street
Timeseries Graph
n/m19 (1 Low)n/mn/an/a 05/11/2025
03:00
Glasgow Kerbside
Timeseries Graph
n/m72 (2 Low)n/mn/mn/m 13/11/2025
14:00
Glasgow Townhead
Timeseries Graph
75 (3 Low)15 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
14/11/2025
09:00
Grangemouth
Timeseries Graph
n/m6 (1 Low)1 (1 Low)5 (1 Low)7 (1 Low)
*1
13/11/2025
22:45
Grangemouth Moray
Timeseries Graph
n/m13 (1 Low)n/mn/mn/m 14/11/2025
09:00
Greenock A8 Roadside
Timeseries Graph
n/m24 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
14/11/2025
09:00

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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
68 (3 Low)26 (1 Low)n/m8 (1 Low)15 (1 Low)
*2
14/11/2025
08:00
Chesterfield Roadside
Timeseries Graph
n/m46 (1 Low)n/m9 (1 Low)16 (1 Low)
*2
14/11/2025
08:00
Derby St Alkmund's Way
Timeseries Graph
n/m77 (2 Low)n/m8 (1 Low)n/m 13/11/2025
24:00
Derby Stockbrook Park
Timeseries Graph
57 (2 Low)n/mn/m7 (1 Low)12 (1 Low)
*2
13/11/2025
24:00
Ladybower
Timeseries Graph
76 (3 Low)7 (1 Low)2 (1 Low)4 (1 Low)7 (1 Low)
*2
14/11/2025
02:30
Leicester A594 Roadside
Timeseries Graph
n/m88 (2 Low)n/m8 (1 Low)15 (1 Low)
*2
14/11/2025
06:00
Leicester University
Timeseries Graph
62 (2 Low)60 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
14/11/2025
06:00
Lincoln Canwick Road
Timeseries Graph
n/m72 (2 Low)n/mn/mn/m 13/11/2025
18:00
Loughborough Thorpe Acre
Timeseries Graph
n/mn/mn/m7 (1 Low)11 (1 Low)
*2
14/11/2025
06:00
Mansfield Ladybrook
Timeseries Graph
n/mn/mn/m7 (1 Low)13 (1 Low)
*2
14/11/2025
01:00
Northampton Spring Park
Timeseries Graph
69 (3 Low)54 (1 Low)n/m12 (2 Low)n/m 13/11/2025
24:00
Nottingham Bilborough
Timeseries Graph
n/mn/mn/m7 (1 Low)12 (1 Low)
*2
13/11/2025
24:00
Nottingham Kenmore Gardens
Timeseries Graph
63 (2 Low)41 (1 Low)3 (1 Low)8 (1 Low)14 (1 Low)
*2
13/11/2025
17:30
Nottingham Western Boulevard
Timeseries Graph
n/mn/an/m7 (1 Low)14 (1 Low)
*2
14/11/2025
01:00
Tallington
Timeseries Graph
64 (2 Low)n/mn/m8 (1 Low)13 (1 Low)
*2
14/11/2025
05:00
Toft Newton
Timeseries Graph
74 (3 Low)7 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
13/11/2025
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/m65 (1 Low)n/m10 (1 Low)15 (1 Low)
*2
14/11/2025
11:00
Cambridge King's Hedges
Timeseries Graph
n/mn/mn/m8 (1 Low)13 (1 Low)
*2
13/11/2025
24:00
Cambridge Roadside
Timeseries Graph
n/m65 (1 Low)n/mn/mn/m 13/11/2025
18:00
Luton A505 Roadside
Timeseries Graph
n/m75 (2 Low)n/m9 (1 Low)n/m 13/11/2025
24:00
Norwich Lakenfields
Timeseries Graph
58 (2 Low)47 (1 Low)n/m8 (1 Low)13 (1 Low)
*2
14/11/2025
03:00
Peterborough Garton End
Timeseries Graph
n/mn/mn/m8 (1 Low)13 (1 Low)
*2
14/11/2025
02:00
Sibton
Timeseries Graph
58 (2 Low)n/mn/m7 (1 Low)11 (1 Low)
*2
13/11/2025
24:00
Southend Shoeburyness
Timeseries Graph
n/mn/mn/m10 (1 Low)16 (1 Low)
*2
14/11/2025
11:00
Southend-on-Sea
Timeseries Graph
54 (2 Low)32 (1 Low)n/m11 (1 Low)18 (2 Low)
*2
14/11/2025
11:00
St Osyth
Timeseries Graph
56 (2 Low)33 (1 Low)n/m10 (1 Low)15 (1 Low)
*2
14/11/2025
11:00
Stanford-le-Hope Roadside
Timeseries Graph
n/m46 (1 Low)n/m14 (2 Low)n/a 14/11/2025
11:00
Thurrock
Timeseries Graph
54 (2 Low)54 (1 Low)4 (1 Low)12 (2 Low)18 (2 Low)
*2
14/11/2025
08:45
Weybourne
Timeseries Graph
71 (3 Low)n/mn/m10 (1 Low)20 (2 Low)
*2
14/11/2025
11:00
Wicken Fen
Timeseries Graph
64 (2 Low)35 (1 Low)2 (1 Low)6 (1 Low)11 (1 Low)
*2
13/11/2025
18:00

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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/m68 (2 Low)n/m15 (2 Low)22 (2 Low)
*1
14/11/2025
11:00
Ealing Horn Lane
Timeseries Graph
n/mn/mn/mn/m28 (2 Low)
*1
13/11/2025
24:00
Haringey Roadside
Timeseries Graph
n/m73 (2 Low)n/mn/mn/m 13/11/2025
19:00
London Bexley
Timeseries Graph
n/m55 (1 Low)n/m12 (2 Low)18 (2 Low)
*2
14/11/2025
10:00
London Bloomsbury
Timeseries Graph
53 (2 Low)51 (1 Low)5 (1 Low)12 (2 Low)17 (2 Low)
*2
14/11/2025
10:30
London Farringdon Street
Timeseries Graph
n/m56 (1 Low)n/m13 (2 Low)n/m 14/11/2025
11:00
London Haringey Priory Park South
Timeseries Graph
59 (2 Low)54 (1 Low)n/m10 (1 Low)16 (1 Low)
*2
14/11/2025
11:00
London Harlington
Timeseries Graph
44 (2 Low)42 (1 Low)n/m10 (1 Low)15 (1 Low)
*2
14/11/2025
11:00
London Hillingdon
Timeseries Graph
34 (2 Low)57 (1 Low)n/m12 (2 Low)19 (2 Low)
*2
14/11/2025
11:00
London Honor Oak Park
Timeseries Graph
69 (3 Low)n/mn/m10 (1 Low)15 (1 Low)
*2
14/11/2025
11:00
London Marylebone Road
Timeseries Graph
33 (1 Low)59 (1 Low)6 (1 Low)13 (2 Low)26 (2 Low)
*1
14/11/2025
10:00
London N. Kensington
Timeseries Graph
61 (2 Low)40 (1 Low)2 (1 Low)11 (1 Low)16 (1 Low)
*2
14/11/2025
08:45
London Norbury Manor School
Timeseries Graph
n/mn/mn/m11 (1 Low)16 (1 Low)
*2
14/11/2025
11:00
London Teddington Bushy Park
Timeseries Graph
n/mn/mn/m10 (1 Low)17 (2 Low)
*2
14/11/2025
11:00
London Westminster
Timeseries Graph
58 (2 Low)44 (1 Low)n/mn/an/m 31/12/2023
24:00
Southwark A2 Old Kent Road
Timeseries Graph
n/m56 (1 Low)n/mn/m23 (2 Low)
*1
13/11/2025
18:00

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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
68 (3 Low)7 (1 Low)n/mn/mn/m 13/11/2025
12:00
Inverness
Timeseries Graph
n/m50 (1 Low)n/m5 (1 Low)11 (1 Low)
*2
14/11/2025
03:00
Lerwick
Timeseries Graph
74 (3 Low)n/mn/mn/mn/m 14/11/2025
02:00
Strathvaich
Timeseries Graph
77 (3 Low)n/mn/mn/mn/m 14/11/2025
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
85 (3 Low)5 (1 Low)n/m6 (1 Low)18 (2 Low)
*2
14/11/2025
10:00
Kielder Water
Timeseries Graph
67 (3 Low)n/mn/m2 (1 Low)5 (1 Low)
*2
14/11/2025
11:00
Middlesbrough
Timeseries Graph
75 (3 Low)27 (1 Low)1 (1 Low)2 (1 Low)11 (1 Low)
*1
13/11/2025
12:45
Newcastle Centre
Timeseries Graph
73 (3 Low)60 (1 Low)n/m4 (1 Low)13 (1 Low)
*1
14/11/2025
06:00
Newcastle Cradlewell Roadside
Timeseries Graph
n/m54 (1 Low)n/m4 (1 Low)9 (1 Low)
*2
14/11/2025
09:00
Stockton-on-Tees A1305 Roadside
Timeseries Graph
n/m57 (1 Low)n/m6 (1 Low)n/m 13/11/2025
07:00
Stockton-on-Tees Eaglescliffe
Timeseries Graph
n/m26 (1 Low)n/m5 (1 Low)11 (1 Low)
*1
14/11/2025
11:00
Sunderland Silksworth
Timeseries Graph
n/a34 (1 Low)n/m4 (1 Low)10 (1 Low)
*2
14/11/2025
09:00
Sunderland Wessington Way
Timeseries Graph
n/m20 (1 Low)n/m5 (1 Low)n/m 14/11/2025
09:00

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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
94 (3 Low)24 (1 Low)n/m6 (1 Low)15 (1 Low)
*2
13/11/2025
24:00
Aberdeen Wellington Road
Timeseries Graph
n/m75 (2 Low)n/mn/mn/m 13/11/2025
09:00
Dundee Mains Loan
Timeseries Graph
n/m12 (1 Low)n/mn/mn/m 13/11/2025
18:00
Perth Glasgow Road
Timeseries Graph
n/m48 (1 Low)n/mn/mn/m 13/11/2025
12:00

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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
70 (3 Low)17 (1 Low)n/mn/mn/m 13/11/2025
12:00
Wrexham
Timeseries Graph
n/m55 (1 Low)6 (1 Low)7 (1 Low)12 (1 Low)
*2
13/11/2025
21:00

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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/m49 (1 Low)n/m6 (1 Low)n/m 13/11/2025
24:00
Blackburn Accrington Road
Timeseries Graph
n/m37 (1 Low)n/mn/mn/m 13/11/2025
15:00
Blackburn Audley Park
Timeseries Graph
68 (3 Low)n/mn/m4 (1 Low)7 (1 Low)
*2
13/11/2025
24:00
Blackpool Marton
Timeseries Graph
70 (3 Low)12 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
13/11/2025
24:00
Blackpool Whitegate Drive
Timeseries Graph
n/mn/mn/m5 (1 Low)n/m 13/11/2025
24:00
Bury Whitefield Roadside
Timeseries Graph
n/m32 (1 Low)n/mn/m11 (1 Low)
*1
13/11/2025
16:00
Carlisle Morton A595
Timeseries Graph
n/m11 (1 Low)n/m3 (1 Low)5 (1 Low)
*1
14/11/2025
02:00
Crewe Coppenhall
Timeseries Graph
63 (2 Low)46 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
13/11/2025
24:00
Glazebury
Timeseries Graph
57 (2 Low)26 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
13/11/2025
24:00
Liverpool Speke
Timeseries Graph
58 (2 Low)42 (1 Low)7 (1 Low)7 (1 Low)13 (1 Low)
*1
13/11/2025
11:15
Liverpool Thirlmere Park
Timeseries Graph
67 (3 Low)n/mn/m6 (1 Low)10 (1 Low)
*2
13/11/2025
24:00
Manchester Piccadilly
Timeseries Graph
65 (2 Low)51 (1 Low)1 (1 Low)9 (1 Low)12 (1 Low)
*2
13/11/2025
17:15
Manchester Sharston
Timeseries Graph
64 (2 Low)39 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
13/11/2025
24:00
Middlewich St Michael's Way
Timeseries Graph
n/mn/mn/m8 (1 Low)n/m 14/11/2025
02:00
Preston
Timeseries Graph
68 (3 Low)24 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
13/11/2025
24:00
Salford Eccles
Timeseries Graph
71 (3 Low)53 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
13/11/2025
24:00
Shaw Crompton Way
Timeseries Graph
n/m35 (1 Low)n/mn/mn/m 13/11/2025
16:00
St Helens Linkway
Timeseries Graph
n/m68 (2 Low)n/mn/m14 (1 Low)
*1
13/11/2025
16:00
Tameside A635 Manchester Road
Timeseries Graph
n/mn/mn/m5 (1 Low)n/m 13/11/2025
24:00
Warrington
Timeseries Graph
n/m45 (1 Low)n/m6 (1 Low)14 (1 Low)
*1
13/11/2025
24:00
Widnes Milton Road
Timeseries Graph
n/m75 (2 Low)n/mn/mn/m 13/11/2025
15:00
Wigan Centre
Timeseries Graph
68 (3 Low)50 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
13/11/2025
24:00
Wirral Tranmere
Timeseries Graph
62 (2 Low)36 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
13/11/2025
24:00

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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/m40 (1 Low)n/mn/m7 (1 Low)
*1
13/11/2025
14:00
Ballymena Antrim Road
Timeseries Graph
n/mn/an/mn/mn/m 05/11/2025
18:00
Ballymena Ballykeel
Timeseries Graph
n/m33 (1 Low)46 (1 Low)n/mn/m 13/11/2025
20:15
Belfast Centre
Timeseries Graph
68 (3 Low)37 (1 Low)1 (1 Low)4 (1 Low)7 (1 Low)
*2
14/11/2025
01:30
Belfast Stockman's Lane
Timeseries Graph
n/m65 (1 Low)n/mn/m10 (1 Low)
*1
13/11/2025
12:00
Derry Rosemount
Timeseries Graph
67 (3 Low)9 (1 Low)7 (1 Low)2 (1 Low)7 (1 Low)
*1
13/11/2025
20:45
Lough Navar
Timeseries Graph
65 (2 Low)n/mn/m1 (1 Low)2 (1 Low)
*2
14/11/2025
11:00

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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/m42 (1 Low)n/mn/mn/m 13/11/2025
17:00
Eskdalemuir
Timeseries Graph
76 (3 Low)2 (1 Low)n/mn/mn/m 13/11/2025
16:00
Peebles
Timeseries Graph
83 (3 Low)2 (1 Low)n/mn/mn/m 13/11/2025
12:00

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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/m7 (1 Low)n/m 13/11/2025
24:00
Brighton Preston Park
Timeseries Graph
55 (2 Low)21 (1 Low)n/m8 (1 Low)16 (1 Low)
*2
13/11/2025
24:00
Chatham Roadside
Timeseries Graph
n/m40 (1 Low)n/m9 (1 Low)22 (2 Low)
*1
14/11/2025
09:00
Chilbolton Observatory
Timeseries Graph
73 (3 Low)10 (1 Low)2 (1 Low)8 (1 Low)13 (1 Low)
*2
14/11/2025
10:45
Eastbourne
Timeseries Graph
55 (2 Low)32 (1 Low)n/m7 (1 Low)16 (1 Low)
*2
14/11/2025
11:00
Farnborough Cherrywood
Timeseries Graph
n/mn/mn/m10 (1 Low)16 (1 Low)
*2
14/11/2025
11:00
Horley
Timeseries Graph
n/m23 (1 Low)n/m13 (2 Low)20 (2 Low)
*2
14/11/2025
11:00
Lullington Heath
Timeseries Graph
62 (2 Low)17 (1 Low)2 (1 Low)8 (1 Low)17 (2 Low)
*2
14/11/2025
09:30
Maidstone Upper Stone Street
Timeseries Graph
n/mn/mn/m11 (1 Low)19 (2 Low)
*2
14/11/2025
11:00
Milton Keynes Civic Centre
Timeseries Graph
69 (3 Low)n/mn/m8 (1 Low)13 (1 Low)
*2
13/11/2025
24:00
Oxford Centre Roadside
Timeseries Graph
n/mn/an/mn/mn/m 19/08/2025
16:00
Oxford St Ebbes
Timeseries Graph
54 (2 Low)42 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
13/11/2025
24:00
Portsmouth
Timeseries Graph
48 (2 Low)26 (1 Low)n/m8 (1 Low)17 (2 Low)
*2
14/11/2025
11:00
Portsmouth Anglesea Road
Timeseries Graph
n/m42 (1 Low)n/m10 (1 Low)19 (2 Low)
*2
14/11/2025
11:00
Reading London Road
Timeseries Graph
n/m50 (1 Low)n/mn/m20 (2 Low)
*1
13/11/2025
18:00
Reading New Town
Timeseries Graph
52 (2 Low)40 (1 Low)n/m11 (1 Low)16 (1 Low)
*2
14/11/2025
11:00
Reading Rose Kiln Lane
Timeseries Graph
n/mn/mn/m11 (1 Low)n/m 14/11/2025
11:00
Rochester Stoke
Timeseries Graph
63 (2 Low)31 (1 Low)2 (1 Low)12 (2 Low)17 (2 Low)
*2
13/11/2025
11:15
Slough Windmill Bath Road
Timeseries Graph
n/mn/mn/m12 (2 Low)21 (2 Low)
*2
14/11/2025
11:00
Southampton A33
Timeseries Graph
n/m69 (2 Low)n/m9 (1 Low)18 (2 Low)
*2
14/11/2025
11:00
Southampton Centre
Timeseries Graph
52 (2 Low)48 (1 Low)2 (1 Low)10 (1 Low)20 (2 Low)
*2
13/11/2025
16:00
Storrington Roadside
Timeseries Graph
n/m36 (1 Low)n/m10 (1 Low)20 (2 Low)
*2
14/11/2025
11:00
Worthing A27 Roadside
Timeseries Graph
n/m44 (1 Low)n/m12 (2 Low)n/m 14/11/2025
11:00
Worthing East Ten Acres
Timeseries Graph
n/mn/mn/m10 (1 Low)23 (2 Low)
*2
14/11/2025
11:00

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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)50 (1 Low)2 (1 Low)8 (1 Low)15 (1 Low)
*1
13/11/2025
13:45
Cardiff Newport Road
Timeseries Graph
n/m68 (2 Low)n/mn/m16 (1 Low)
*1
13/11/2025
17:00
Chepstow A48
Timeseries Graph
n/m69 (2 Low)n/m8 (1 Low)17 (2 Low)
*1
13/11/2025
24:00
Cwmbran Crownbridge
Timeseries Graph
71 (3 Low)32 (1 Low)n/mn/mn/m 14/11/2025
08:00
Hafod-yr-ynys Hill Roadside
Timeseries Graph
n/m35 (1 Low)n/mn/mn/m 13/11/2025
19:00
Narberth
Timeseries Graph
66 (2 Low)7 (1 Low)1 (1 Low)6 (1 Low)12 (1 Low)
*2
13/11/2025
14:15
Newport
Timeseries Graph
n/m48 (1 Low)n/m6 (1 Low)12 (1 Low)
*2
13/11/2025
24:00
Port Talbot Margam
Timeseries Graph
69 (3 Low)13 (1 Low)2 (1 Low)4 (1 Low)17 (2 Low)
*3
13/11/2025
17:15
Swansea Roadside
Timeseries Graph
n/m52 (1 Low)n/m7 (1 Low)15 (1 Low)
*1
14/11/2025
03:00

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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/m5 (1 Low)10 (1 Low)
*2
14/11/2025
06:00
Bath A4 Roadside
Timeseries Graph
n/m60 (1 Low)n/mn/mn/m 13/11/2025
17:00
Bournemouth
Timeseries Graph
67 (3 Low)12 (1 Low)n/m9 (1 Low)n/m 13/11/2025
24:00
Bristol St Paul's
Timeseries Graph
52 (2 Low)57 (1 Low)n/m7 (1 Low)17 (2 Low)
*1
14/11/2025
01:00
Bristol Temple Way
Timeseries Graph
n/m53 (1 Low)n/m7 (1 Low)14 (1 Low)
*2
13/11/2025
24:00
Charlton Mackrell
Timeseries Graph
63 (2 Low)10 (1 Low)n/m8 (1 Low)12 (1 Low)
*2
14/11/2025
09:00
Cheltenham A40 Gloucester Road
Timeseries Graph
n/mn/mn/m5 (1 Low)n/m 13/11/2025
24:00
Christchurch Barrack Road
Timeseries Graph
n/m26 (1 Low)n/m12 (2 Low)n/m 14/11/2025
11:00
Exeter Roadside
Timeseries Graph
42 (2 Low)55 (1 Low)n/mn/mn/m 13/11/2025
17:00
Gloucester Tredworth
Timeseries Graph
n/mn/mn/m6 (1 Low)12 (1 Low)
*2
13/11/2025
24:00
Honiton
Timeseries Graph
66 (2 Low)11 (1 Low)n/m9 (1 Low)16 (1 Low)
*2
14/11/2025
11:00
Plymouth Centre
Timeseries Graph
53 (2 Low)41 (1 Low)n/m12 (2 Low)29 (2 Low)
*2
14/11/2025
11:00
Plymouth Tavistock Road
Timeseries Graph
n/m14 (1 Low)n/mn/mn/m 13/11/2025
17:00
Saltash Callington Road
Timeseries Graph
n/mn/mn/m6 (1 Low)22 (2 Low)
*1
14/11/2025
11:00
Swindon Walcot
Timeseries Graph
63 (2 Low)33 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
13/11/2025
24:00
Yarner Wood
Timeseries Graph
67 (3 Low)9 (1 Low)n/m7 (1 Low)13 (1 Low)
*2
14/11/2025
11:00

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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
63 (2 Low)n/mn/mn/mn/m 14/11/2025
10:00

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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
55 (2 Low)65 (1 Low)n/m10 (1 Low)18 (2 Low)
*2
14/11/2025
06:00
Birmingham Hall Green
Timeseries Graph
65 (2 Low)58 (1 Low)n/m8 (1 Low)14 (1 Low)
*2
14/11/2025
06:00
Birmingham Ladywood
Timeseries Graph
55 (2 Low)71 (2 Low)5 (1 Low)8 (1 Low)14 (1 Low)
*2
13/11/2025
18:00
Birmingham University
Timeseries Graph
n/mn/mn/m9 (1 Low)14 (1 Low)
*2
14/11/2025
07:00
Burton-on-Trent Horninglow
Timeseries Graph
59 (2 Low)51 (1 Low)n/m7 (1 Low)12 (1 Low)
*2
14/11/2025
05:00
Cannock A5190 Roadside
Timeseries Graph
n/m63 (1 Low)n/m7 (1 Low)n/m 14/11/2025
06:00
Coventry Allesley
Timeseries Graph
63 (2 Low)57 (1 Low)n/m7 (1 Low)13 (1 Low)
*2
14/11/2025
06:00
Coventry Binley Road
Timeseries Graph
n/m71 (2 Low)n/m6 (1 Low)12 (1 Low)
*2
14/11/2025
02:00
Leamington Spa
Timeseries Graph
69 (3 Low)46 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
13/11/2025
24:00
Leamington Spa Rugby Road
Timeseries Graph
n/m69 (2 Low)n/m5 (1 Low)9 (1 Low)
*2
13/11/2025
24:00
Leominster
Timeseries Graph
64 (2 Low)26 (1 Low)n/mn/mn/m 14/11/2025
11:00
Oldbury Birmingham Road
Timeseries Graph
n/m81 (2 Low)n/m10 (1 Low)16 (1 Low)
*2
14/11/2025
06:00
Shrewsbury Underdale
Timeseries Graph
n/mn/mn/m8 (1 Low)14 (1 Low)
*2
14/11/2025
06:00
Stoke-on-Trent A50 Roadside
Timeseries Graph
n/m91 (2 Low)n/m7 (1 Low)13 (1 Low)
*2
14/11/2025
07:00
Stoke-on-Trent Centre
Timeseries Graph
63 (2 Low)49 (1 Low)n/m7 (1 Low)12 (1 Low)
*2
13/11/2025
24:00
Telford Hollinswood
Timeseries Graph
60 (2 Low)44 (1 Low)n/m7 (1 Low)11 (1 Low)
*2
14/11/2025
06:00
Walsall Woodlands
Timeseries Graph
62 (2 Low)46 (1 Low)n/mn/mn/m 14/11/2025
11:00
West Bromwich Kenrick Park
Timeseries Graph
57 (2 Low)69 (2 Low)n/mn/mn/m 14/11/2025
11:00
Worcester Tolladine
Timeseries Graph
n/mn/mn/m5 (1 Low)10 (1 Low)
*2
13/11/2025
24:00

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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
68 (3 Low)14 (1 Low)3 (1 Low)5 (1 Low)10 (1 Low)
*2
13/11/2025
14:15
Bradford Mayo Avenue
Timeseries Graph
n/m63 (1 Low)n/mn/mn/m 13/11/2025
19:00
Bradford Shipley Airedale Road
Timeseries Graph
n/mn/mn/m5 (1 Low)9 (1 Low)
*2
13/11/2025
24:00
Dewsbury Ashworth Grange
Timeseries Graph
67 (3 Low)24 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
13/11/2025
24:00
Doncaster A630 Cleveland Street
Timeseries Graph
n/m58 (1 Low)n/m7 (1 Low)n/m 13/11/2025
24:00
Harrogate Woodlands
Timeseries Graph
n/mn/mn/m4 (1 Low)7 (1 Low)
*2
13/11/2025
24:00
High Muffles
Timeseries Graph
74 (3 Low)2 (1 Low)n/m3 (1 Low)4 (1 Low)
*2
13/11/2025
24:00
Hull Freetown
Timeseries Graph
80 (3 Low)34 (1 Low)3 (1 Low)8 (1 Low)18 (2 Low)
*2
13/11/2025
14:15
Hull Holderness Road
Timeseries Graph
n/m42 (1 Low)n/m8 (1 Low)17 (2 Low)
*2
13/11/2025
24:00
Immingham Woodlands Avenue
Timeseries Graph
64 (2 Low)44 (1 Low)n/m6 (1 Low)13 (1 Low)
*2
14/11/2025
11:00
Leeds Centre
Timeseries Graph
71 (3 Low)26 (1 Low)2 (1 Low)5 (1 Low)9 (1 Low)
*2
14/11/2025
04:15
Leeds Headingley Kerbside
Timeseries Graph
n/m34 (1 Low)n/m8 (1 Low)16 (1 Low)
*1
13/11/2025
24:00
Rotherham East Dene
Timeseries Graph
n/mn/mn/m7 (1 Low)14 (1 Low)
*2
13/11/2025
24:00
Scunthorpe Town
Timeseries Graph
n/m20 (1 Low)1 (1 Low)6 (1 Low)14 (1 Low)
*1
13/11/2025
14:15
Sheffield Barnsley Road
Timeseries Graph
n/m48 (1 Low)n/m8 (1 Low)n/m 13/11/2025
24:00
Sheffield Devonshire Green
Timeseries Graph
61 (2 Low)28 (1 Low)n/m8 (1 Low)15 (1 Low)
*2
13/11/2025
24:00
Sheffield Tinsley
Timeseries Graph
54 (2 Low)30 (1 Low)n/m7 (1 Low)15 (1 Low)
*2
13/11/2025
24:00
Wakefield Alverthorpe
Timeseries Graph
n/mn/mn/m6 (1 Low)12 (1 Low)
*2
13/11/2025
24:00
York Bootham
Timeseries Graph
66 (2 Low)10 (1 Low)n/m6 (1 Low)13 (1 Low)
*1
13/11/2025
24:00
York Fishergate
Timeseries Graph
n/m29 (1 Low)n/m4 (1 Low)16 (1 Low)
*1
13/11/2025
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