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 8am Tue 8th Jul 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
75 (3 Low)n/mn/m4 (1 Low)9 (1 Low)
*2
08/07/2025
08:00:00
Bush Estate
Timeseries Graph
75 (3 Low)2 (1 Low)n/mn/mn/m 07/07/2025
19:00:00
Dumbarton Roadside
Timeseries Graph
n/m13 (1 Low)n/mn/mn/m 08/07/2025
08:00:00
Edinburgh Nicolson Street
Timeseries Graph
n/m40 (1 Low)n/mn/mn/m 08/07/2025
08:00:00
Edinburgh St Leonards
Timeseries Graph
60 (2 Low)13 (1 Low)4 (1 Low)6 (1 Low)13 (1 Low)
*2
07/07/2025
08:00:00
Glasgow Great Western Road
Timeseries Graph
n/m23 (1 Low)n/mn/mn/m 08/07/2025
08:00:00
Glasgow High Street
Timeseries Graph
n/m21 (1 Low)n/m6 (1 Low)16 (1 Low)
*2
08/07/2025
08:00:00
Glasgow Kerbside
Timeseries Graph
n/m40 (1 Low)n/mn/mn/m 08/07/2025
07:00:00
Glasgow Townhead
Timeseries Graph
73 (3 Low)17 (1 Low)n/m7 (1 Low)19 (2 Low)
*2
08/07/2025
07:00:00
Grangemouth
Timeseries Graph
n/m7 (1 Low)3 (1 Low)5 (1 Low)13 (1 Low)
*1
08/07/2025
02:45:00
Grangemouth Moray
Timeseries Graph
n/m7 (1 Low)n/mn/mn/m 08/07/2025
07:00:00
Greenock A8 Roadside
Timeseries Graph
n/m16 (1 Low)n/m7 (1 Low)18 (2 Low)
*2
08/07/2025
07:00:00

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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
78 (3 Low)4 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
08/07/2025
01:00:00
Chesterfield Roadside
Timeseries Graph
n/m10 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
08/07/2025
01:00:00
Derby St Alkmund's Way
Timeseries Graph
n/m27 (1 Low)n/m5 (1 Low)n/m 08/07/2025
01:00:00
Derby Stockbrook Park
Timeseries Graph
71 (3 Low)n/mn/m4 (1 Low)8 (1 Low)
*2
08/07/2025
01:00:00
Ladybower
Timeseries Graph
78 (3 Low)2 (1 Low)1 (1 Low)3 (1 Low)7 (1 Low)
*2
07/07/2025
13:15:00
Leicester A594 Roadside
Timeseries Graph
n/m31 (1 Low)n/m6 (1 Low)12 (1 Low)
*2
08/07/2025
07:00:00
Leicester University
Timeseries Graph
71 (3 Low)17 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
08/07/2025
01:00:00
Lincoln Canwick Road
Timeseries Graph
n/m35 (1 Low)n/mn/mn/m 07/07/2025
08:00:00
Loughborough Thorpe Acre
Timeseries Graph
n/mn/mn/m6 (1 Low)10 (1 Low)
*2
08/07/2025
01:00:00
Mansfield Ladybrook
Timeseries Graph
n/mn/mn/m4 (1 Low)8 (1 Low)
*2
08/07/2025
01:00:00
Northampton Spring Park
Timeseries Graph
80 (3 Low)8 (1 Low)n/m7 (1 Low)n/m 08/07/2025
01:00:00
Nottingham Bilborough
Timeseries Graph
n/mn/mn/m4 (1 Low)8 (1 Low)
*2
08/07/2025
01:00:00
Nottingham Kenmore Gardens
Timeseries Graph
76 (3 Low)10 (1 Low)2 (1 Low)5 (1 Low)9 (1 Low)
*2
08/07/2025
02:30:00
Nottingham Western Boulevard
Timeseries Graph
n/m22 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
08/07/2025
01:00:00
Tallington
Timeseries Graph
82 (3 Low)n/mn/m5 (1 Low)9 (1 Low)
*2
08/07/2025
01:00:00
Toft Newton
Timeseries Graph
84 (3 Low)6 (1 Low)n/m4 (1 Low)10 (1 Low)
*2
08/07/2025
01:00:00

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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/m5 (1 Low)n/mn/an/a 03/07/2025
01:00:00
Cambridge Roadside
Timeseries Graph
n/mn/an/mn/mn/m 03/07/2025
17:00:00
Luton A505 Roadside
Timeseries Graph
n/m42 (1 Low)n/m5 (1 Low)n/m 08/07/2025
02:00:00
Norwich Lakenfields
Timeseries Graph
69 (3 Low)9 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
08/07/2025
02:00:00
Peterborough Garton End
Timeseries Graph
n/mn/mn/m4 (1 Low)9 (1 Low)
*2
08/07/2025
01:00:00
Sibton
Timeseries Graph
72 (3 Low)n/mn/m4 (1 Low)11 (1 Low)
*2
08/07/2025
01:00:00
Southend Shoeburyness
Timeseries Graph
n/mn/mn/m4 (1 Low)9 (1 Low)
*2
08/07/2025
05:00:00
Southend-on-Sea
Timeseries Graph
74 (3 Low)6 (1 Low)n/m4 (1 Low)9 (1 Low)
*2
08/07/2025
05:00:00
St Osyth
Timeseries Graph
83 (3 Low)5 (1 Low)n/m5 (1 Low)14 (1 Low)
*2
08/07/2025
03:00:00
Stanford-le-Hope Roadside
Timeseries Graph
n/m22 (1 Low)n/m7 (1 Low)13 (1 Low)
*1
08/07/2025
08:00:00
Thurrock
Timeseries Graph
77 (3 Low)13 (1 Low)2 (1 Low)5 (1 Low)9 (1 Low)
*2
07/07/2025
07:15:00
Weybourne
Timeseries Graph
72 (3 Low)n/mn/m7 (1 Low)15 (1 Low)
*2
08/07/2025
08:00:00
Wicken Fen
Timeseries Graph
68 (3 Low)3 (1 Low)2 (1 Low)5 (1 Low)11 (1 Low)
*2
07/07/2025
16:45:00

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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/m36 (1 Low)n/m9 (1 Low)22 (2 Low)
*1
08/07/2025
02:00:00
Ealing Horn Lane
Timeseries Graph
n/mn/mn/mn/m24 (2 Low)
*1
08/07/2025
08:00:00
Haringey Roadside
Timeseries Graph
n/m19 (1 Low)n/mn/mn/m 07/07/2025
08:00:00
London Bexley
Timeseries Graph
n/m13 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
08/07/2025
05:00:00
London Bloomsbury
Timeseries Graph
69 (3 Low)20 (1 Low)3 (1 Low)5 (1 Low)9 (1 Low)
*2
07/07/2025
09:30:00
London Haringey Priory Park South
Timeseries Graph
81 (3 Low)5 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
08/07/2025
03:00:00
London Harlington
Timeseries Graph
77 (3 Low)19 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
08/07/2025
08:00:00
London Hillingdon
Timeseries Graph
71 (3 Low)10 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
08/07/2025
08:00:00
London Honor Oak Park
Timeseries Graph
84 (3 Low)n/mn/m4 (1 Low)8 (1 Low)
*2
08/07/2025
03:00:00
London Marylebone Road
Timeseries Graph
46 (2 Low)37 (1 Low)4 (1 Low)3 (1 Low)10 (1 Low)
*1
06/07/2025
16:45:00
London N. Kensington
Timeseries Graph
78 (3 Low)14 (1 Low)56 (1 Low)5 (1 Low)9 (1 Low)
*2
08/07/2025
05:45:00
London Norbury Manor School
Timeseries Graph
n/mn/mn/m5 (1 Low)8 (1 Low)
*2
08/07/2025
04:00:00
London Teddington Bushy Park
Timeseries Graph
n/mn/mn/m4 (1 Low)8 (1 Low)
*2
08/07/2025
05:00:00
London Westminster
Timeseries Graph
53 (2 Low)30 (1 Low)n/m5 (1 Low)n/m 08/07/2025
07:00:00
Southwark A2 Old Kent Road
Timeseries Graph
n/m35 (1 Low)n/mn/m19 (2 Low)
*1
08/07/2025
07:00:00

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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
67 (3 Low)6 (1 Low)n/mn/mn/m 07/07/2025
16:00:00
Inverness
Timeseries Graph
n/m11 (1 Low)n/m9 (1 Low)25 (2 Low)
*2
08/07/2025
07:00:00
Lerwick
Timeseries Graph
69 (3 Low)n/mn/mn/mn/m 07/07/2025
14:00:00
Strathvaich
Timeseries Graph
77 (3 Low)n/mn/mn/mn/m 07/07/2025
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
Hartlepool St Abbs Walk
Timeseries Graph
72 (3 Low)6 (1 Low)n/m5 (1 Low)13 (1 Low)
*2
08/07/2025
08:00:00
Kielder Water
Timeseries Graph
67 (3 Low)n/mn/m4 (1 Low)9 (1 Low)
*2
08/07/2025
08:00:00
Middlesbrough
Timeseries Graph
67 (3 Low)17 (1 Low)3 (1 Low)3 (1 Low)15 (1 Low)
*1
07/07/2025
16:15:00
Newcastle Centre
Timeseries Graph
68 (3 Low)13 (1 Low)n/m5 (1 Low)13 (1 Low)
*1
08/07/2025
08:00:00
Newcastle Cradlewell Roadside
Timeseries Graph
n/m21 (1 Low)n/m4 (1 Low)9 (1 Low)
*2
08/07/2025
08:00:00
Stockton-on-Tees A1305 Roadside
Timeseries Graph
n/m28 (1 Low)n/m4 (1 Low)n/m 08/07/2025
03:00:00
Stockton-on-Tees Eaglescliffe
Timeseries Graph
n/m17 (1 Low)n/m4 (1 Low)17 (2 Low)
*1
08/07/2025
01:00:00
Sunderland Silksworth
Timeseries Graph
66 (2 Low)18 (1 Low)n/m4 (1 Low)10 (1 Low)
*2
08/07/2025
08:00:00
Sunderland Wessington Way
Timeseries Graph
n/m20 (1 Low)n/m4 (1 Low)n/m 08/07/2025
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
72 (3 Low)3 (1 Low)n/m9 (1 Low)22 (2 Low)
*2
08/07/2025
07:00:00
Aberdeen Wellington Road
Timeseries Graph
n/m18 (1 Low)n/mn/mn/m 07/07/2025
13:00:00
Dundee Mains Loan
Timeseries Graph
n/m3 (1 Low)n/mn/mn/m 07/07/2025
22:00:00
Perth Glasgow Road
Timeseries Graph
n/m21 (1 Low)n/mn/mn/m 07/07/2025
09:00:00

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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
78 (3 Low)n/an/mn/mn/m 07/07/2025
23:00:00
Wrexham
Timeseries Graph
n/m11 (1 Low)1 (1 Low)5 (1 Low)11 (1 Low)
*2
07/07/2025
09:45:00

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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/m14 (1 Low)n/m7 (1 Low)n/m 08/07/2025
08:00:00
Blackburn Accrington Road
Timeseries Graph
n/m29 (1 Low)n/mn/mn/m 07/07/2025
09:00:00
Blackburn Audley Park
Timeseries Graph
66 (2 Low)n/mn/m5 (1 Low)10 (1 Low)
*2
08/07/2025
08:00:00
Blackpool Marton
Timeseries Graph
70 (3 Low)6 (1 Low)n/m6 (1 Low)13 (1 Low)
*2
08/07/2025
08:00:00
Blackpool Whitegate Drive
Timeseries Graph
n/mn/mn/m7 (1 Low)n/m 08/07/2025
06:00:00
Bury Whitefield Roadside
Timeseries Graph
n/m15 (1 Low)n/mn/m15 (1 Low)
*1
08/07/2025
07:00:00
Carlisle Morton A595
Timeseries Graph
n/m6 (1 Low)n/m5 (1 Low)10 (1 Low)
*1
08/07/2025
03:00:00
Crewe Coppenhall
Timeseries Graph
72 (3 Low)30 (1 Low)n/m5 (1 Low)12 (1 Low)
*2
08/07/2025
08:00:00
Glazebury
Timeseries Graph
70 (3 Low)8 (1 Low)n/m5 (1 Low)11 (1 Low)
*2
08/07/2025
08:00:00
Liverpool Speke
Timeseries Graph
71 (3 Low)20 (1 Low)2 (1 Low)7 (1 Low)18 (2 Low)
*1
07/07/2025
19:45:00
Liverpool Thirlmere Park
Timeseries Graph
71 (3 Low)n/mn/m7 (1 Low)17 (2 Low)
*2
08/07/2025
08:00:00
Manchester Piccadilly
Timeseries Graph
68 (3 Low)18 (1 Low)2 (1 Low)6 (1 Low)15 (1 Low)
*2
07/07/2025
15:15:00
Manchester Sharston
Timeseries Graph
68 (3 Low)18 (1 Low)n/m5 (1 Low)12 (1 Low)
*2
08/07/2025
08:00:00
Middlewich St Michael's Way
Timeseries Graph
n/mn/mn/m6 (1 Low)n/m 08/07/2025
07:00:00
Preston
Timeseries Graph
67 (3 Low)21 (1 Low)n/m5 (1 Low)12 (1 Low)
*2
08/07/2025
08:00:00
Salford Eccles
Timeseries Graph
71 (3 Low)20 (1 Low)n/m6 (1 Low)12 (1 Low)
*2
08/07/2025
08:00:00
Shaw Crompton Way
Timeseries Graph
n/m26 (1 Low)n/mn/mn/m 08/07/2025
08:00:00
St Helens Linkway
Timeseries Graph
n/m24 (1 Low)n/mn/m12 (1 Low)
*1
07/07/2025
09:00:00
Tameside A635 Manchester Road
Timeseries Graph
n/mn/mn/m5 (1 Low)n/m 08/07/2025
08:00:00
Warrington
Timeseries Graph
n/m9 (1 Low)n/m3 (1 Low)12 (1 Low)
*1
08/07/2025
06:00:00
Widnes Milton Road
Timeseries Graph
n/m19 (1 Low)n/mn/mn/m 07/07/2025
09:00:00
Wigan Centre
Timeseries Graph
72 (3 Low)16 (1 Low)n/m5 (1 Low)11 (1 Low)
*2
08/07/2025
08:00:00
Wirral Tranmere
Timeseries Graph
70 (3 Low)14 (1 Low)n/m6 (1 Low)14 (1 Low)
*2
08/07/2025
08:00:00

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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/m24 (1 Low)n/mn/m13 (1 Low)
*1
08/07/2025
07:00:00
Ballymena Antrim Road
Timeseries Graph
n/m24 (1 Low)n/mn/mn/m 08/07/2025
07:00:00
Ballymena Ballykeel
Timeseries Graph
n/m4 (1 Low)3 (1 Low)n/mn/m 07/07/2025
16:15:00
Belfast Centre
Timeseries Graph
49 (2 Low)7 (1 Low)n/a5 (1 Low)10 (1 Low)
*2
05/07/2025
19:45:00
Belfast Stockman's Lane
Timeseries Graph
n/m62 (1 Low)n/mn/m13 (1 Low)
*1
08/07/2025
08:00:00
Derry Rosemount
Timeseries Graph
69 (3 Low)7 (1 Low)1 (1 Low)2 (1 Low)9 (1 Low)
*1
08/07/2025
06:15:00
Lough Navar
Timeseries Graph
60 (2 Low)n/mn/m3 (1 Low)6 (1 Low)
*2
08/07/2025
01:00:00

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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/m38 (1 Low)n/mn/mn/m 07/07/2025
09:00:00
Eskdalemuir
Timeseries Graph
71 (3 Low)1 (1 Low)n/mn/mn/m 07/07/2025
19:00:00
Peebles
Timeseries Graph
75 (3 Low)2 (1 Low)n/mn/mn/m 07/07/2025
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
72 (3 Low)7 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
08/07/2025
07:00:00
Chatham Roadside
Timeseries Graph
n/m18 (1 Low)n/m5 (1 Low)15 (1 Low)
*1
08/07/2025
06:00:00
Chilbolton Observatory
Timeseries Graph
81 (3 Low)3 (1 Low)13 (1 Low)4 (1 Low)7 (1 Low)
*2
07/07/2025
13:15:00
Eastbourne
Timeseries Graph
76 (3 Low)8 (1 Low)n/m7 (1 Low)11 (1 Low)
*2
08/07/2025
07:00:00
Farnborough Cherrywood
Timeseries Graph
n/mn/mn/m4 (1 Low)8 (1 Low)
*2
08/07/2025
08:00:00
Horley
Timeseries Graph
n/m12 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
08/07/2025
05:00:00
Lullington Heath
Timeseries Graph
80 (3 Low)5 (1 Low)2 (1 Low)4 (1 Low)8 (1 Low)
*2
07/07/2025
11:15:00
Maidstone Upper Stone Street
Timeseries Graph
n/mn/mn/m5 (1 Low)9 (1 Low)
*2
08/07/2025
06:00:00
Milton Keynes Civic Centre
Timeseries Graph
81 (3 Low)n/mn/m5 (1 Low)9 (1 Low)
*2
08/07/2025
02:00:00
Oxford Centre Roadside
Timeseries Graph
n/m25 (1 Low)n/mn/mn/m 07/07/2025
24:00:
Oxford St Ebbes
Timeseries Graph
75 (3 Low)36 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
08/07/2025
08:00:00
Portsmouth
Timeseries Graph
73 (3 Low)12 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
08/07/2025
08:00:00
Portsmouth Anglesea Road
Timeseries Graph
n/m24 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
08/07/2025
08:00:00
Reading London Road
Timeseries Graph
n/m19 (1 Low)n/mn/m14 (1 Low)
*1
07/07/2025
24:00:
Reading New Town
Timeseries Graph
74 (3 Low)15 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
08/07/2025
08:00:00
Reading Rose Kiln Lane
Timeseries Graph
n/mn/mn/m4 (1 Low)n/m 08/07/2025
07:00:00
Rochester Stoke
Timeseries Graph
81 (3 Low)17 (1 Low)3 (1 Low)5 (1 Low)9 (1 Low)
*2
07/07/2025
16:30:00
Slough Windmill Bath Road
Timeseries Graph
n/mn/mn/m6 (1 Low)13 (1 Low)
*2
08/07/2025
07:00:00
Southampton A33
Timeseries Graph
n/m17 (1 Low)n/m4 (1 Low)9 (1 Low)
*2
08/07/2025
08:00:00
Southampton Centre
Timeseries Graph
73 (3 Low)12 (1 Low)1 (1 Low)4 (1 Low)8 (1 Low)
*2
07/07/2025
08:15:00
Storrington Roadside
Timeseries Graph
n/m40 (1 Low)n/m4 (1 Low)9 (1 Low)
*2
08/07/2025
08:00:00
Worthing A27 Roadside
Timeseries Graph
n/m29 (1 Low)n/m6 (1 Low)n/m 08/07/2025
07:00:00
Worthing East Ten Acres
Timeseries Graph
n/mn/mn/m4 (1 Low)8 (1 Low)
*2
08/07/2025
07:00:00

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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
68 (3 Low)11 (1 Low)2 (1 Low)10 (1 Low)11 (1 Low)
*1
07/07/2025
21:45:00
Cardiff Newport Road
Timeseries Graph
n/m13 (1 Low)n/mn/m12 (1 Low)
*1
07/07/2025
09:00:00
Chepstow A48
Timeseries Graph
n/m23 (1 Low)n/m5 (1 Low)12 (1 Low)
*1
08/07/2025
07:00:00
Cwmbran Crownbridge
Timeseries Graph
79 (3 Low)2 (1 Low)n/mn/mn/m 07/07/2025
24:00:
Hafod-yr-ynys Hill Roadside
Timeseries Graph
n/m36 (1 Low)n/mn/mn/m 08/07/2025
06:00:00
Narberth
Timeseries Graph
70 (3 Low)2 (1 Low)1 (1 Low)4 (1 Low)9 (1 Low)
*2
08/07/2025
02:30:00
Newport
Timeseries Graph
n/m12 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
08/07/2025
08:00:00
Port Talbot Margam
Timeseries Graph
73 (3 Low)11 (1 Low)2 (1 Low)6 (1 Low)12 (1 Low)
*3
07/07/2025
18:30:00
Swansea Roadside
Timeseries Graph
n/m12 (1 Low)n/m5 (1 Low)11 (1 Low)
*1
08/07/2025
03:00:00

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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/m5 (1 Low)12 (1 Low)
*2
08/07/2025
03:00:00
Bath A4 Roadside
Timeseries Graph
n/m33 (1 Low)n/mn/mn/m 07/07/2025
17:00:00
Bournemouth
Timeseries Graph
75 (3 Low)5 (1 Low)n/m6 (1 Low)n/m 08/07/2025
05:00:00
Bristol St Paul's
Timeseries Graph
69 (3 Low)5 (1 Low)n/m4 (1 Low)12 (1 Low)
*1
08/07/2025
08:00:00
Bristol Temple Way
Timeseries Graph
n/m28 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
08/07/2025
08:00:00
Charlton Mackrell
Timeseries Graph
74 (3 Low)2 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
08/07/2025
08:00:00
Cheltenham A40 Gloucester Road
Timeseries Graph
n/mn/mn/m5 (1 Low)n/m 08/07/2025
08:00:00
Christchurch Barrack Road
Timeseries Graph
n/m12 (1 Low)n/m7 (1 Low)n/m 08/07/2025
07:00:00
Exeter Roadside
Timeseries Graph
57 (2 Low)22 (1 Low)n/mn/mn/m 08/07/2025
01:00:00
Gloucester Tredworth
Timeseries Graph
n/mn/mn/m4 (1 Low)8 (1 Low)
*2
08/07/2025
08:00:00
Honiton
Timeseries Graph
69 (3 Low)9 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
08/07/2025
06:00:00
London Farringdon Street
Timeseries Graph
n/m34 (1 Low)n/m6 (1 Low)n/m 08/07/2025
03:00:00
Plymouth Centre
Timeseries Graph
63 (2 Low)27 (1 Low)n/m8 (1 Low)38 (3 Low)
*2
08/07/2025
08:00:00
Plymouth Tavistock Road
Timeseries Graph
n/m13 (1 Low)n/mn/mn/m 07/07/2025
24:00:
Saltash Callington Road
Timeseries Graph
n/mn/mn/m4 (1 Low)14 (1 Low)
*1
08/07/2025
03:00:00
Swindon Walcot
Timeseries Graph
67 (3 Low)5 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
08/07/2025
08:00:00
Yarner Wood
Timeseries Graph
70 (3 Low)2 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
08/07/2025
05:00:00

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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
71 (3 Low)n/mn/mn/mn/m 07/07/2025
20:00:00

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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
67 (3 Low)32 (1 Low)n/m5 (1 Low)11 (1 Low)
*2
08/07/2025
07:00:00
Birmingham Hall Green
Timeseries Graph
80 (3 Low)17 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
08/07/2025
08:00:00
Birmingham Ladywood
Timeseries Graph
n/an/an/a5 (1 Low)10 (1 Low)
*2
02/07/2025
02:45:00
Burton-on-Trent Horninglow
Timeseries Graph
76 (3 Low)19 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
08/07/2025
08:00:00
Cannock A5190 Roadside
Timeseries Graph
n/m14 (1 Low)n/m5 (1 Low)n/m 08/07/2025
08:00:00
Coventry Allesley
Timeseries Graph
74 (3 Low)11 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
08/07/2025
08:00:00
Coventry Binley Road
Timeseries Graph
n/m23 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
08/07/2025
08:00:00
Leamington Spa
Timeseries Graph
83 (3 Low)11 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
08/07/2025
08:00:00
Leamington Spa Rugby Road
Timeseries Graph
n/m9 (1 Low)n/m5 (1 Low)8 (1 Low)
*2
08/07/2025
08:00:00
Leominster
Timeseries Graph
81 (3 Low)4 (1 Low)n/mn/mn/m 07/07/2025
23:00:00
Oldbury Birmingham Road
Timeseries Graph
n/mn/an/m6 (1 Low)13 (1 Low)
*2
08/07/2025
07:00:00
Shrewsbury Underdale
Timeseries Graph
n/mn/mn/m5 (1 Low)9 (1 Low)
*2
08/07/2025
01:00:00
Stoke-on-Trent A50 Roadside
Timeseries Graph
n/m29 (1 Low)n/m6 (1 Low)12 (1 Low)
*2
08/07/2025
08:00:00
Stoke-on-Trent Centre
Timeseries Graph
64 (2 Low)20 (1 Low)n/m6 (1 Low)13 (1 Low)
*2
08/07/2025
08:00:00
Telford Hollinswood
Timeseries Graph
81 (3 Low)12 (1 Low)n/m4 (1 Low)10 (1 Low)
*2
08/07/2025
08:00:00
Walsall Woodlands
Timeseries Graph
n/an/an/mn/mn/m 30/06/2025
18:00:00
West Bromwich Kenrick Park
Timeseries Graph
75 (3 Low)8 (1 Low)n/mn/mn/m 07/07/2025
24:00:
Worcester Tolladine
Timeseries Graph
n/mn/mn/m4 (1 Low)9 (1 Low)
*2
08/07/2025
02:00:00

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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
61 (2 Low)7 (1 Low)2 (1 Low)4 (1 Low)9 (1 Low)
*2
08/07/2025
02:15:00
Bradford Mayo Avenue
Timeseries Graph
n/m25 (1 Low)n/mn/mn/m 07/07/2025
09:00:00
Bradford Shipley Airedale Road
Timeseries Graph
n/mn/mn/m4 (1 Low)8 (1 Low)
*2
08/07/2025
01:00:00
Dewsbury Ashworth Grange
Timeseries Graph
71 (3 Low)7 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
08/07/2025
01:00:00
Doncaster A630 Cleveland Street
Timeseries Graph
n/m17 (1 Low)n/m4 (1 Low)n/m 08/07/2025
01:00:00
Harrogate Woodlands
Timeseries Graph
n/mn/mn/m4 (1 Low)8 (1 Low)
*2
08/07/2025
01:00:00
High Muffles
Timeseries Graph
n/a4 (1 Low)n/m3 (1 Low)8 (1 Low)
*2
08/07/2025
08:00:00
Hull Freetown
Timeseries Graph
67 (3 Low)12 (1 Low)3 (1 Low)4 (1 Low)10 (1 Low)
*2
07/07/2025
19:30:00
Hull Holderness Road
Timeseries Graph
n/m26 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
08/07/2025
01:00:00
Immingham Woodlands Avenue
Timeseries Graph
66 (2 Low)11 (1 Low)n/m4 (1 Low)9 (1 Low)
*2
08/07/2025
01:00:00
Leeds Centre
Timeseries Graph
66 (2 Low)14 (1 Low)1 (1 Low)4 (1 Low)8 (1 Low)
*2
07/07/2025
12:15:00
Leeds Headingley Kerbside
Timeseries Graph
n/m18 (1 Low)n/m6 (1 Low)11 (1 Low)
*1
08/07/2025
01:00:00
Rotherham East Dene
Timeseries Graph
n/mn/mn/m5 (1 Low)9 (1 Low)
*2
08/07/2025
01:00:00
Scunthorpe Town
Timeseries Graph
n/m9 (1 Low)1 (1 Low)7 (1 Low)14 (1 Low)
*1
07/07/2025
16:00:00
Sheffield Barnsley Road
Timeseries Graph
n/m30 (1 Low)n/m4 (1 Low)n/m 08/07/2025
01:00:00
Sheffield Devonshire Green
Timeseries Graph
70 (3 Low)6 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
08/07/2025
01:00:00
Sheffield Tinsley
Timeseries Graph
68 (3 Low)35 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
08/07/2025
01:00:00
York Bootham
Timeseries Graph
64 (2 Low)6 (1 Low)n/m4 (1 Low)11 (1 Low)
*1
08/07/2025
01:00:00
York Fishergate
Timeseries Graph
n/m23 (1 Low)n/m4 (1 Low)17 (2 Low)
*1
08/07/2025
05:00:00

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