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 2am Thu 9th Jul 2026

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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
63 (2 Low)n/mn/m7 (1 Low)9 (1 Low)
*2
09/07/2026
02:00:00
Bush Estate
Timeseries Graph
68 (3 Low)4 (1 Low)n/mn/mn/m 08/07/2026
22:00:00
Dumbarton Roadside
Timeseries Graph
n/m16 (1 Low)n/mn/mn/m 08/07/2026
24:00:
Edinburgh Nicolson Street
Timeseries Graph
n/m37 (1 Low)n/mn/mn/m 08/07/2026
22:00:00
Edinburgh St Leonards
Timeseries Graph
67 (3 Low)14 (1 Low)2 (1 Low)6 (1 Low)9 (1 Low)
*2
08/07/2026
08:15:00
Glasgow Great Western Road
Timeseries Graph
n/m21 (1 Low)n/mn/mn/m 08/07/2026
24:00:
Glasgow High Street
Timeseries Graph
n/m14 (1 Low)n/m8 (1 Low)12 (1 Low)
*2
09/07/2026
02:00:00
Glasgow Kerbside
Timeseries Graph
n/m63 (1 Low)n/mn/mn/m 08/07/2026
10:00:00
Glasgow Townhead
Timeseries Graph
65 (2 Low)14 (1 Low)n/m5 (1 Low)8 (1 Low)
*2
09/07/2026
02:00:00
Grangemouth
Timeseries Graph
n/m9 (1 Low)3 (1 Low)3 (1 Low)7 (1 Low)
*1
08/07/2026
20:45:00
Grangemouth Moray
Timeseries Graph
n/m8 (1 Low)n/mn/mn/m 08/07/2026
23:00:00
Greenock A8 Roadside
Timeseries Graph
n/m16 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
09/07/2026
02:00:00

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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
122 (5 Moderate)7 (1 Low)n/m9 (1 Low)14 (1 Low)
*2
08/07/2026
24:00:
Chesterfield Roadside
Timeseries Graph
n/m20 (1 Low)n/m10 (1 Low)17 (2 Low)
*2
09/07/2026
02:00:00
Derby St Alkmund's Way
Timeseries Graph
n/m56 (1 Low)n/m12 (2 Low)n/m 09/07/2026
02:00:00
Derby Stockbrook Park
Timeseries Graph
119 (4 Moderate)n/mn/m10 (1 Low)16 (1 Low)
*2
09/07/2026
02:00:00
Ladybower
Timeseries Graph
114 (4 Moderate)7 (1 Low)1 (1 Low)9 (1 Low)14 (1 Low)
*2
08/07/2026
18:30:00
Leicester A594 Roadside
Timeseries Graph
n/m89 (2 Low)n/m12 (2 Low)21 (2 Low)
*2
09/07/2026
02:00:00
Leicester University
Timeseries Graph
109 (4 Moderate)47 (1 Low)n/m10 (1 Low)16 (1 Low)
*2
09/07/2026
02:00:00
Lincoln Canwick Road
Timeseries Graph
n/m63 (1 Low)n/mn/mn/m 08/07/2026
17:00:00
Loughborough Thorpe Acre
Timeseries Graph
n/mn/mn/m11 (1 Low)19 (2 Low)
*2
09/07/2026
02:00:00
Mansfield Ladybrook
Timeseries Graph
n/mn/mn/m9 (1 Low)15 (1 Low)
*2
09/07/2026
02:00:00
Northampton Spring Park
Timeseries Graph
109 (4 Moderate)18 (1 Low)n/m14 (2 Low)n/m 09/07/2026
02:00:00
Nottingham Bilborough
Timeseries Graph
n/mn/mn/m10 (1 Low)17 (2 Low)
*2
09/07/2026
02:00:00
Nottingham Kenmore Gardens
Timeseries Graph
116 (4 Moderate)17 (1 Low)2 (1 Low)11 (1 Low)18 (2 Low)
*2
08/07/2026
19:45:00
Nottingham Western Boulevard
Timeseries Graph
n/m38 (1 Low)n/m11 (1 Low)20 (2 Low)
*2
09/07/2026
02:00:00
Tallington
Timeseries Graph
101 (4 Moderate)n/mn/m7 (1 Low)14 (1 Low)
*2
09/07/2026
02:00:00
Toft Newton
Timeseries Graph
94 (3 Low)7 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
09/07/2026
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/m27 (1 Low)n/m11 (1 Low)19 (2 Low)
*2
09/07/2026
02:00:00
Cambridge King's Hedges
Timeseries Graph
n/mn/mn/m7 (1 Low)14 (1 Low)
*2
09/07/2026
02:00:00
Cambridge Roadside
Timeseries Graph
n/m33 (1 Low)n/mn/mn/m 08/07/2026
19:00:00
Luton A505 Roadside
Timeseries Graph
n/m73 (2 Low)n/m11 (1 Low)n/m 09/07/2026
02:00:00
Norwich Lakenfields
Timeseries Graph
70 (3 Low)14 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
09/07/2026
02:00:00
Peterborough Garton End
Timeseries Graph
n/mn/mn/m7 (1 Low)14 (1 Low)
*2
09/07/2026
02:00:00
Sibton
Timeseries Graph
88 (3 Low)n/mn/m7 (1 Low)14 (1 Low)
*2
09/07/2026
02:00:00
Southend Shoeburyness
Timeseries Graph
n/mn/mn/m6 (1 Low)11 (1 Low)
*2
09/07/2026
01:00:00
Southend-on-Sea
Timeseries Graph
95 (3 Low)22 (1 Low)n/m7 (1 Low)12 (1 Low)
*2
09/07/2026
01:00:00
St Osyth
Timeseries Graph
88 (3 Low)21 (1 Low)n/m7 (1 Low)14 (1 Low)
*2
09/07/2026
01:00:00
Stanford-le-Hope Roadside
Timeseries Graph
n/m51 (1 Low)n/m11 (1 Low)15 (1 Low)
*1
09/07/2026
01:00:00
Stevenage St Georges Way South
Timeseries Graph
n/mn/mn/m9 (1 Low)n/m 09/07/2026
02:00:00
Thurrock
Timeseries Graph
110 (4 Moderate)38 (1 Low)3 (1 Low)10 (1 Low)18 (2 Low)
*2
08/07/2026
06:15:00
Weybourne
Timeseries Graph
76 (3 Low)n/mn/m7 (1 Low)11 (1 Low)
*2
09/07/2026
02:00:00
Wicken Fen
Timeseries Graph
89 (3 Low)11 (1 Low)2 (1 Low)7 (1 Low)13 (1 Low)
*2
08/07/2026
08:45:00

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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/m48 (1 Low)n/m14 (2 Low)25 (2 Low)
*1
09/07/2026
02:00:00
Ealing Horn Lane
Timeseries Graph
n/mn/mn/mn/m45 (3 Low)
*1
09/07/2026
01:00:00
Haringey Roadside
Timeseries Graph
n/m34 (1 Low)n/mn/mn/m 09/07/2026
02:00:00
London A406 N Circular
Timeseries Graph
n/mn/mn/m11 (1 Low)n/m 09/07/2026
02:00:00
London Bexley
Timeseries Graph
n/m20 (1 Low)n/m11 (1 Low)22 (2 Low)
*2
09/07/2026
02:00:00
London Bloomsbury
Timeseries Graph
112 (4 Moderate)16 (1 Low)7 (1 Low)10 (1 Low)18 (2 Low)
*2
08/07/2026
15:15:00
London Farringdon Street
Timeseries Graph
n/m33 (1 Low)n/m12 (2 Low)n/m 09/07/2026
02:00:00
London Haringey Priory Park South
Timeseries Graph
87 (3 Low)16 (1 Low)n/m12 (2 Low)39 (3 Low)
*2
09/07/2026
02:00:00
London Harlington
Timeseries Graph
124 (5 Moderate)37 (1 Low)n/m12 (2 Low)26 (2 Low)
*2
08/07/2026
22:00:00
London Hillingdon
Timeseries Graph
120 (4 Moderate)46 (1 Low)n/m13 (2 Low)23 (2 Low)
*2
09/07/2026
02:00:00
London Honor Oak Park
Timeseries Graph
154 (6 Moderate)n/mn/m10 (1 Low)17 (2 Low)
*2
09/07/2026
02:00:00
London Marylebone Road
Timeseries Graph
117 (4 Moderate)34 (1 Low)6 (1 Low)11 (1 Low)23 (2 Low)
*1
08/07/2026
10:00:00
London N. Kensington
Timeseries Graph
129 (5 Moderate)18 (1 Low)2 (1 Low)10 (1 Low)18 (2 Low)
*2
08/07/2026
24:00:
London Norbury Manor School
Timeseries Graph
n/mn/mn/m11 (1 Low)17 (2 Low)
*2
09/07/2026
02:00:00
London Teddington Bushy Park
Timeseries Graph
n/mn/mn/m12 (2 Low)20 (2 Low)
*2
09/07/2026
02:00:00
London Westminster
Timeseries Graph
127 (5 Moderate)18 (1 Low)n/mn/mn/m 08/07/2026
22:00:00
Southwark A2 Old Kent Road
Timeseries Graph
n/m38 (1 Low)n/mn/m27 (2 Low)
*1
08/07/2026
06:00:00

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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
40 (2 Low)5 (1 Low)n/mn/mn/m 08/07/2026
20:00:00
Inverness
Timeseries Graph
n/m9 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
09/07/2026
02:00:00
Lerwick
Timeseries Graph
57 (2 Low)n/mn/mn/mn/m 08/07/2026
16:00:00
Strathvaich
Timeseries Graph
53 (2 Low)n/mn/mn/mn/m 08/07/2026
02:00:00

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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
Darlington Firthmoor
Timeseries Graph
n/mn/mn/m4 (1 Low)8 (1 Low)
*2
09/07/2026
01:00:00
Hartlepool St Abbs Walk
Timeseries Graph
50 (2 Low)18 (1 Low)n/m6 (1 Low)13 (1 Low)
*2
09/07/2026
02:00:00
Kielder Water
Timeseries Graph
48 (2 Low)n/mn/m4 (1 Low)7 (1 Low)
*2
09/07/2026
02:00:00
Middlesbrough
Timeseries Graph
48 (2 Low)19 (1 Low)1 (1 Low)4 (1 Low)15 (1 Low)
*1
08/07/2026
15:15:00
Newcastle Centre
Timeseries Graph
52 (2 Low)22 (1 Low)n/m9 (1 Low)12 (1 Low)
*1
09/07/2026
02:00:00
Newcastle Cradlewell Roadside
Timeseries Graph
n/m31 (1 Low)n/m5 (1 Low)8 (1 Low)
*2
09/07/2026
02:00:00
North Shields Chirton
Timeseries Graph
n/mn/mn/m5 (1 Low)9 (1 Low)
*2
09/07/2026
02:00:00
Redcar Milford Walk
Timeseries Graph
n/mn/mn/m6 (1 Low)14 (1 Low)
*2
09/07/2026
01:00:00
Stockton-on-Tees A1305 Roadside
Timeseries Graph
n/m39 (1 Low)n/m6 (1 Low)n/m 09/07/2026
01:00:00
Stockton-on-Tees Eaglescliffe
Timeseries Graph
n/m26 (1 Low)n/m4 (1 Low)15 (1 Low)
*1
09/07/2026
01:00:00
Sunderland Silksworth
Timeseries Graph
51 (2 Low)19 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
09/07/2026
02:00:00
Sunderland Wessington Way
Timeseries Graph
n/m34 (1 Low)n/m4 (1 Low)n/m 09/07/2026
02:00:00

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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
46 (2 Low)27 (1 Low)n/m4 (1 Low)10 (1 Low)
*2
09/07/2026
02:00:00
Aberdeen Wellington Road
Timeseries Graph
n/mn/an/mn/mn/m 06/07/2026
21:00:00
Dundee Mains Loan
Timeseries Graph
n/m7 (1 Low)n/mn/mn/m 08/07/2026
22:00:00
Perth Glasgow Road
Timeseries Graph
n/m19 (1 Low)n/mn/mn/m 09/07/2026
02:00:00

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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
91 (3 Low)9 (1 Low)n/mn/mn/m 08/07/2026
20:00:00
Wrexham
Timeseries Graph
n/m23 (1 Low)2 (1 Low)11 (1 Low)17 (2 Low)
*2
08/07/2026
08:45:00

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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/m20 (1 Low)n/m8 (1 Low)n/m 09/07/2026
02:00:00
Blackburn Accrington Road
Timeseries Graph
n/m42 (1 Low)n/mn/mn/m 08/07/2026
24:00:
Blackburn Audley Park
Timeseries Graph
69 (3 Low)n/mn/m7 (1 Low)12 (1 Low)
*2
09/07/2026
02:00:00
Blackpool Marton
Timeseries Graph
66 (2 Low)14 (1 Low)n/m8 (1 Low)12 (1 Low)
*2
09/07/2026
02:00:00
Blackpool Whitegate Drive
Timeseries Graph
n/mn/mn/m8 (1 Low)n/m 09/07/2026
02:00:00
Bury Whitefield Roadside
Timeseries Graph
n/m44 (1 Low)n/mn/m15 (1 Low)
*1
09/07/2026
02:00:00
Carlisle Morton A595
Timeseries Graph
n/m13 (1 Low)n/m5 (1 Low)6 (1 Low)
*1
09/07/2026
01:00:00
Crewe Coppenhall
Timeseries Graph
104 (4 Moderate)23 (1 Low)n/m12 (2 Low)19 (2 Low)
*2
09/07/2026
02:00:00
Glazebury
Timeseries Graph
85 (3 Low)n/an/m9 (1 Low)14 (1 Low)
*2
09/07/2026
02:00:00
Liverpool Speke
Timeseries Graph
69 (3 Low)31 (1 Low)28 (1 Low)9 (1 Low)16 (1 Low)
*1
08/07/2026
15:45:00
Liverpool Thirlmere Park
Timeseries Graph
60 (2 Low)n/mn/m9 (1 Low)21 (2 Low)
*2
09/07/2026
02:00:00
Manchester Piccadilly
Timeseries Graph
71 (3 Low)43 (1 Low)4 (1 Low)12 (2 Low)22 (2 Low)
*2
08/07/2026
13:45:00
Manchester Sharston
Timeseries Graph
99 (3 Low)52 (1 Low)n/m10 (1 Low)17 (2 Low)
*2
08/07/2026
24:00:
Middlewich St Michael's Way
Timeseries Graph
n/mn/mn/m11 (1 Low)n/m 09/07/2026
02:00:00
Preston
Timeseries Graph
66 (2 Low)33 (1 Low)n/m8 (1 Low)13 (1 Low)
*2
09/07/2026
02:00:00
Salford Eccles
Timeseries Graph
84 (3 Low)27 (1 Low)n/m10 (1 Low)18 (2 Low)
*2
09/07/2026
02:00:00
Shaw Crompton Way
Timeseries Graph
n/m30 (1 Low)n/mn/mn/m 08/07/2026
09:00:00
St Helens Linkway
Timeseries Graph
n/m24 (1 Low)n/mn/m15 (1 Low)
*1
08/07/2026
08:00:00
Tameside A635 Manchester Road
Timeseries Graph
n/mn/mn/m8 (1 Low)n/m 09/07/2026
02:00:00
Warrington
Timeseries Graph
n/m28 (1 Low)n/mn/an/a 06/07/2026
16:00:00
Widnes Milton Road
Timeseries Graph
n/m32 (1 Low)n/mn/mn/m 08/07/2026
03:00:00
Wigan Centre
Timeseries Graph
75 (3 Low)21 (1 Low)n/m9 (1 Low)15 (1 Low)
*2
09/07/2026
02:00:00
Wirral Tranmere
Timeseries Graph
77 (3 Low)22 (1 Low)n/m8 (1 Low)11 (1 Low)
*2
09/07/2026
02:00:00

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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/m32 (1 Low)n/mn/m13 (1 Low)
*1
08/07/2026
22:00:00
Ballymena Antrim Road
Timeseries Graph
n/m15 (1 Low)n/mn/mn/m 08/07/2026
18:00:00
Ballymena Ballykeel
Timeseries Graph
n/m11 (1 Low)3 (1 Low)n/mn/m 08/07/2026
24:30:
Belfast Centre
Timeseries Graph
68 (3 Low)39 (1 Low)2 (1 Low)8 (1 Low)15 (1 Low)
*2
08/07/2026
14:15:00
Belfast Stockman's Lane
Timeseries Graph
n/m58 (1 Low)n/mn/m16 (1 Low)
*1
08/07/2026
16:00:00
Derry Rosemount
Timeseries Graph
47 (2 Low)9 (1 Low)2 (1 Low)2 (1 Low)8 (1 Low)
*1
08/07/2026
12:45:00
Lough Navar
Timeseries Graph
40 (2 Low)n/mn/m3 (1 Low)4 (1 Low)
*2
09/07/2026
02:00:00

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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/m17 (1 Low)n/mn/mn/m 08/07/2026
09:00:00
Eskdalemuir
Timeseries Graph
49 (2 Low)2 (1 Low)n/mn/mn/m 08/07/2026
22:00:00
Peebles
Timeseries Graph
59 (2 Low)5 (1 Low)n/mn/mn/m 08/07/2026
22:00:00

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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
Aylesbury A4157
Timeseries Graph
n/mn/mn/m11 (1 Low)n/m 09/07/2026
02:00:00
Brighton Preston Park
Timeseries Graph
92 (3 Low)30 (1 Low)n/m10 (1 Low)15 (1 Low)
*2
09/07/2026
02:00:00
Chatham Roadside
Timeseries Graph
n/m37 (1 Low)n/m6 (1 Low)19 (2 Low)
*1
09/07/2026
01:00:00
Chilbolton Observatory
Timeseries Graph
113 (4 Moderate)8 (1 Low)2 (1 Low)12 (2 Low)18 (2 Low)
*2
08/07/2026
18:45:00
Eastbourne
Timeseries Graph
99 (3 Low)24 (1 Low)n/m10 (1 Low)14 (1 Low)
*2
09/07/2026
02:00:00
Farnborough Cherrywood
Timeseries Graph
n/mn/mn/m12 (2 Low)18 (2 Low)
*2
09/07/2026
02:00:00
Horley
Timeseries Graph
n/m37 (1 Low)n/m12 (2 Low)18 (2 Low)
*2
09/07/2026
02:00:00
Lullington Heath
Timeseries Graph
116 (4 Moderate)14 (1 Low)1 (1 Low)10 (1 Low)14 (1 Low)
*2
08/07/2026
18:15:00
Maidstone Upper Stone Street
Timeseries Graph
n/mn/mn/m13 (2 Low)24 (2 Low)
*2
09/07/2026
01:00:00
Milton Keynes Civic Centre
Timeseries Graph
102 (4 Moderate)n/mn/m10 (1 Low)17 (2 Low)
*2
09/07/2026
02:00:00
Oxford Centre Roadside
Timeseries Graph
n/m32 (1 Low)n/mn/mn/m 09/07/2026
01:00:00
Oxford St Ebbes
Timeseries Graph
103 (4 Moderate)76 (2 Low)n/m12 (2 Low)18 (2 Low)
*2
09/07/2026
02:00:00
Portsmouth
Timeseries Graph
96 (3 Low)30 (1 Low)n/m10 (1 Low)22 (2 Low)
*2
09/07/2026
02:00:00
Portsmouth Anglesea Road
Timeseries Graph
n/m44 (1 Low)n/m10 (1 Low)18 (2 Low)
*2
09/07/2026
02:00:00
Reading London Road
Timeseries Graph
n/m35 (1 Low)n/mn/mn/a 08/07/2026
21:00:00
Reading New Town
Timeseries Graph
113 (4 Moderate)21 (1 Low)n/m12 (2 Low)17 (2 Low)
*2
09/07/2026
02:00:00
Reading Rose Kiln Lane
Timeseries Graph
n/mn/mn/m13 (2 Low)n/m 09/07/2026
02:00:00
Rochester Stoke
Timeseries Graph
115 (4 Moderate)17 (1 Low)3 (1 Low)8 (1 Low)14 (1 Low)
*2
08/07/2026
08:30:00
Slough Windmill Bath Road
Timeseries Graph
n/mn/mn/m13 (2 Low)23 (2 Low)
*2
09/07/2026
02:00:00
Southampton A33
Timeseries Graph
n/m68 (2 Low)n/m10 (1 Low)18 (2 Low)
*2
09/07/2026
02:00:00
Southampton Centre
Timeseries Graph
101 (4 Moderate)55 (1 Low)3 (1 Low)17 (2 Low)24 (2 Low)
*2
08/07/2026
14:45:00
Storrington Roadside
Timeseries Graph
n/m35 (1 Low)n/m12 (2 Low)18 (2 Low)
*2
09/07/2026
02:00:00
Worthing A27 Roadside
Timeseries Graph
n/m45 (1 Low)n/m13 (2 Low)n/m 09/07/2026
02:00:00
Worthing East Ten Acres
Timeseries Graph
n/mn/mn/m11 (1 Low)15 (1 Low)
*2
09/07/2026
02:00:00

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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
88 (3 Low)30 (1 Low)2 (1 Low)11 (1 Low)15 (1 Low)
*1
08/07/2026
10:00:00
Cardiff Newport Road
Timeseries Graph
n/m41 (1 Low)n/mn/m21 (2 Low)
*1
08/07/2026
10:00:00
Chepstow A48
Timeseries Graph
n/m45 (1 Low)n/m9 (1 Low)15 (1 Low)
*1
09/07/2026
01:00:00
Cwmbran Crownbridge
Timeseries Graph
117 (4 Moderate)22 (1 Low)n/mn/mn/m 08/07/2026
21:00:00
Hafod-yr-ynys Hill Roadside
Timeseries Graph
n/m48 (1 Low)n/mn/mn/m 08/07/2026
21:00:00
Narberth
Timeseries Graph
70 (3 Low)7 (1 Low)4 (1 Low)5 (1 Low)8 (1 Low)
*2
08/07/2026
11:45:00
Newport
Timeseries Graph
n/m21 (1 Low)n/m16 (2 Low)26 (2 Low)
*2
09/07/2026
02:00:00
Port Talbot Margam
Timeseries Graph
77 (3 Low)25 (1 Low)3 (1 Low)13 (2 Low)23 (2 Low)
*3
08/07/2026
13:45:00
Swansea Roadside
Timeseries Graph
n/m21 (1 Low)n/m14 (2 Low)16 (1 Low)
*1
09/07/2026
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/m5 (1 Low)9 (1 Low)
*2
09/07/2026
02:00:00
Bath A4 Roadside
Timeseries Graph
n/m18 (1 Low)n/mn/mn/m 08/07/2026
19:00:00
Bournemouth
Timeseries Graph
104 (4 Moderate)12 (1 Low)n/m12 (2 Low)n/m 09/07/2026
02:00:00
Bournemouth Bourne Valley
Timeseries Graph
n/mn/mn/m10 (1 Low)16 (1 Low)
*2
09/07/2026
02:00:00
Bridgwater A372 Westonzoyland
Timeseries Graph
n/mn/mn/m8 (1 Low)n/m 09/07/2026
02:00:00
Bristol Patchway
Timeseries Graph
n/mn/mn/m12 (2 Low)22 (2 Low)
*2
09/07/2026
02:00:00
Bristol St Paul's
Timeseries Graph
99 (3 Low)37 (1 Low)n/m12 (2 Low)20 (2 Low)
*1
09/07/2026
02:00:00
Bristol Temple Way
Timeseries Graph
n/m35 (1 Low)n/m12 (2 Low)18 (2 Low)
*2
09/07/2026
02:00:00
Charlton Mackrell
Timeseries Graph
n/an/an/mn/an/a 07/07/2026
12:00:00
Cheltenham A40 Gloucester Road
Timeseries Graph
n/mn/mn/m10 (1 Low)n/m 09/07/2026
02:00:00
Christchurch Barrack Road
Timeseries Graph
n/m37 (1 Low)n/m9 (1 Low)n/m 09/07/2026
02:00:00
Exeter Roadside
Timeseries Graph
91 (3 Low)25 (1 Low)n/mn/mn/m 08/07/2026
20:00:00
Gloucester Tredworth
Timeseries Graph
n/mn/mn/m15 (2 Low)23 (2 Low)
*2
09/07/2026
01:00:00
Honiton
Timeseries Graph
99 (3 Low)13 (1 Low)n/m9 (1 Low)13 (1 Low)
*2
09/07/2026
02:00:00
Plymouth Centre
Timeseries Graph
71 (3 Low)23 (1 Low)n/m9 (1 Low)26 (2 Low)
*2
09/07/2026
02:00:00
Plymouth Tavistock Road
Timeseries Graph
n/m25 (1 Low)n/mn/mn/m 08/07/2026
08:00:00
Saltash Callington Road
Timeseries Graph
n/mn/mn/m2 (1 Low)10 (1 Low)
*1
08/07/2026
11:00:00
Swindon Walcot
Timeseries Graph
130 (5 Moderate)19 (1 Low)n/m14 (2 Low)21 (2 Low)
*2
09/07/2026
02:00:00
Yarner Wood
Timeseries Graph
107 (4 Moderate)5 (1 Low)n/m8 (1 Low)13 (1 Low)
*2
09/07/2026
02:00:00

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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
49 (2 Low)n/mn/mn/mn/m 08/07/2026
23:00:00

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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
Bedworth Collycroft
Timeseries Graph
n/mn/mn/m13 (2 Low)21 (2 Low)
*2
09/07/2026
02:00:00
Birmingham A4540 Roadside
Timeseries Graph
93 (3 Low)46 (1 Low)n/m14 (2 Low)25 (2 Low)
*2
09/07/2026
02:00:00
Birmingham Hall Green
Timeseries Graph
128 (5 Moderate)38 (1 Low)n/m13 (2 Low)20 (2 Low)
*2
09/07/2026
01:00:00
Birmingham Ladywood
Timeseries Graph
86 (3 Low)20 (1 Low)3 (1 Low)12 (2 Low)19 (2 Low)
*2
08/07/2026
09:15:00
Birmingham University
Timeseries Graph
n/mn/mn/m13 (2 Low)19 (2 Low)
*2
09/07/2026
02:00:00
Burton-on-Trent Horninglow
Timeseries Graph
118 (4 Moderate)18 (1 Low)n/m10 (1 Low)16 (1 Low)
*2
09/07/2026
02:00:00
Cannock A5190 Roadside
Timeseries Graph
n/m26 (1 Low)n/m12 (2 Low)n/m 09/07/2026
02:00:00
Coventry Allesley
Timeseries Graph
122 (5 Moderate)40 (1 Low)n/m12 (2 Low)20 (2 Low)
*2
09/07/2026
02:00:00
Coventry Binley Road
Timeseries Graph
n/m78 (2 Low)n/m13 (2 Low)20 (2 Low)
*2
09/07/2026
02:00:00
Leamington Spa
Timeseries Graph
128 (5 Moderate)35 (1 Low)n/m13 (2 Low)20 (2 Low)
*2
09/07/2026
02:00:00
Leamington Spa Rugby Road
Timeseries Graph
n/m16 (1 Low)n/m13 (2 Low)19 (2 Low)
*2
09/07/2026
02:00:00
Leominster
Timeseries Graph
101 (4 Moderate)18 (1 Low)n/mn/mn/m 08/07/2026
20:00:00
Oldbury Birmingham Road
Timeseries Graph
n/m50 (1 Low)n/m14 (2 Low)22 (2 Low)
*2
09/07/2026
02:00:00
Shrewsbury Underdale
Timeseries Graph
n/mn/mn/m12 (2 Low)17 (2 Low)
*2
09/07/2026
01:00:00
Stoke-on-Trent A50 Roadside
Timeseries Graph
n/m52 (1 Low)n/m12 (2 Low)20 (2 Low)
*2
09/07/2026
02:00:00
Stoke-on-Trent Centre
Timeseries Graph
104 (4 Moderate)29 (1 Low)n/m11 (1 Low)19 (2 Low)
*2
09/07/2026
02:00:00
Telford Hollinswood
Timeseries Graph
118 (4 Moderate)20 (1 Low)n/m12 (2 Low)19 (2 Low)
*2
09/07/2026
02:00:00
Walsall Caldmore
Timeseries Graph
n/mn/mn/m14 (2 Low)22 (2 Low)
*2
09/07/2026
02:00:00
Walsall Woodlands
Timeseries Graph
117 (4 Moderate)18 (1 Low)n/mn/mn/m 08/07/2026
21:00:00
West Bromwich Kenrick Park
Timeseries Graph
104 (4 Moderate)25 (1 Low)n/mn/mn/m 08/07/2026
20:00:00
Worcester Tolladine
Timeseries Graph
n/mn/mn/m14 (2 Low)20 (2 Low)
*2
09/07/2026
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
88 (3 Low)56 (1 Low)25 (1 Low)8 (1 Low)14 (1 Low)
*2
08/07/2026
20:15:00
Bradford Mayo Avenue
Timeseries Graph
n/m44 (1 Low)n/mn/mn/m 09/07/2026
01:00:00
Bradford Shipley Airedale Road
Timeseries Graph
n/mn/mn/m8 (1 Low)13 (1 Low)
*2
09/07/2026
02:00:00
Dewsbury Ashworth Grange
Timeseries Graph
87 (3 Low)16 (1 Low)n/m9 (1 Low)14 (1 Low)
*2
09/07/2026
02:00:00
Doncaster A630 Cleveland Street
Timeseries Graph
n/m46 (1 Low)n/m8 (1 Low)n/m 09/07/2026
02:00:00
Harrogate Woodlands
Timeseries Graph
n/mn/mn/m6 (1 Low)10 (1 Low)
*2
09/07/2026
01:00:00
High Muffles
Timeseries Graph
64 (2 Low)4 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
09/07/2026
01:00:00
Hull Freetown
Timeseries Graph
71 (3 Low)16 (1 Low)1 (1 Low)7 (1 Low)12 (1 Low)
*2
08/07/2026
02:30:00
Hull Holderness Road
Timeseries Graph
n/m28 (1 Low)n/m8 (1 Low)15 (1 Low)
*2
09/07/2026
01:00:00
Immingham Woodlands Avenue
Timeseries Graph
67 (3 Low)12 (1 Low)n/m7 (1 Low)13 (1 Low)
*2
09/07/2026
01:00:00
Leeds Centre
Timeseries Graph
76 (3 Low)23 (1 Low)2 (1 Low)8 (1 Low)12 (1 Low)
*2
08/07/2026
15:15:00
Leeds Headingley Kerbside
Timeseries Graph
n/m24 (1 Low)n/m11 (1 Low)n/a 09/07/2026
02:00:00
Rotherham East Dene
Timeseries Graph
n/mn/mn/m10 (1 Low)16 (1 Low)
*2
09/07/2026
02:00:00
Scunthorpe Town
Timeseries Graph
n/m15 (1 Low)4 (1 Low)7 (1 Low)17 (2 Low)
*1
08/07/2026
22:45:00
Sheffield Barnsley Road
Timeseries Graph
n/m57 (1 Low)n/m10 (1 Low)n/m 09/07/2026
02:00:00
Sheffield Devonshire Green
Timeseries Graph
105 (4 Moderate)33 (1 Low)n/m10 (1 Low)16 (1 Low)
*2
09/07/2026
02:00:00
Sheffield Tinsley
Timeseries Graph
103 (4 Moderate)42 (1 Low)n/m9 (1 Low)15 (1 Low)
*2
09/07/2026
02:00:00
Wakefield Alverthorpe
Timeseries Graph
n/mn/mn/m9 (1 Low)16 (1 Low)
*2
09/07/2026
02:00:00
York Bootham
Timeseries Graph
73 (3 Low)15 (1 Low)n/m7 (1 Low)12 (1 Low)
*1
09/07/2026
01:00:00
York Fishergate
Timeseries Graph
n/m24 (1 Low)n/m7 (1 Low)17 (2 Low)
*1
09/07/2026
02:00:00

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