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.

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  • View the legend
  • Maximum pollutant levels displayed on UK-AIR for the 24 hour period up to 2am Fri 10th 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
65 (2 Low)n/mn/m7 (1 Low)10 (1 Low)
*2
10/07/2026
01:00:00
Bush Estate
Timeseries Graph
69 (3 Low)4 (1 Low)n/mn/mn/m 09/07/2026
19:00:00
Dumbarton Roadside
Timeseries Graph
n/m10 (1 Low)n/mn/mn/m 09/07/2026
13:00:00
Edinburgh Nicolson Street
Timeseries Graph
n/m33 (1 Low)n/mn/mn/m 08/07/2026
22:00:00
Edinburgh St Leonards
Timeseries Graph
69 (3 Low)20 (1 Low)2 (1 Low)7 (1 Low)11 (1 Low)
*2
09/07/2026
02:30:00
Glasgow Great Western Road
Timeseries Graph
n/m33 (1 Low)n/mn/mn/m 09/07/2026
18:00:00
Glasgow High Street
Timeseries Graph
n/m18 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
10/07/2026
01:00:00
Glasgow Kerbside
Timeseries Graph
n/m41 (1 Low)n/mn/mn/m 09/07/2026
09:00:00
Glasgow Townhead
Timeseries Graph
58 (2 Low)18 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
10/07/2026
01:00:00
Grangemouth
Timeseries Graph
n/m8 (1 Low)4 (1 Low)4 (1 Low)7 (1 Low)
*1
09/07/2026
05:45:00
Grangemouth Moray
Timeseries Graph
n/m13 (1 Low)n/mn/mn/m 09/07/2026
02:00:00
Greenock A8 Roadside
Timeseries Graph
n/m19 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
10/07/2026
01:00:00

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East Midlands

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Chesterfield Loundsley Green
Timeseries Graph
128 (5 Moderate)10 (1 Low)n/m12 (2 Low)18 (2 Low)
*2
10/07/2026
01:00:00
Chesterfield Roadside
Timeseries Graph
n/m22 (1 Low)n/m13 (2 Low)22 (2 Low)
*2
10/07/2026
01:00:00
Derby St Alkmund's Way
Timeseries Graph
n/m43 (1 Low)n/m13 (2 Low)n/m 10/07/2026
01:00:00
Derby Stockbrook Park
Timeseries Graph
133 (5 Moderate)n/mn/m12 (2 Low)20 (2 Low)
*2
10/07/2026
01:00:00
Ladybower
Timeseries Graph
134 (5 Moderate)9 (1 Low)2 (1 Low)12 (2 Low)17 (2 Low)
*2
09/07/2026
11:15:00
Leicester A594 Roadside
Timeseries Graph
n/m57 (1 Low)n/m12 (2 Low)24 (2 Low)
*2
10/07/2026
01:00:00
Leicester University
Timeseries Graph
147 (6 Moderate)31 (1 Low)n/m10 (1 Low)17 (2 Low)
*2
10/07/2026
01:00:00
Lincoln Canwick Road
Timeseries Graph
n/m90 (2 Low)n/mn/mn/m 09/07/2026
18:00:00
Loughborough Thorpe Acre
Timeseries Graph
n/mn/mn/m11 (1 Low)19 (2 Low)
*2
10/07/2026
01:00:00
Mansfield Ladybrook
Timeseries Graph
n/mn/mn/m12 (2 Low)20 (2 Low)
*2
10/07/2026
02:00:00
Northampton Spring Park
Timeseries Graph
132 (5 Moderate)14 (1 Low)n/m14 (2 Low)n/m 10/07/2026
01:00:00
Nottingham Bilborough
Timeseries Graph
n/mn/mn/m11 (1 Low)21 (2 Low)
*2
10/07/2026
02:00:00
Nottingham Kenmore Gardens
Timeseries Graph
143 (6 Moderate)13 (1 Low)2 (1 Low)11 (1 Low)19 (2 Low)
*2
09/07/2026
12:30:00
Nottingham Western Boulevard
Timeseries Graph
n/m32 (1 Low)n/m11 (1 Low)22 (2 Low)
*2
10/07/2026
02:00:00
Tallington
Timeseries Graph
147 (6 Moderate)n/mn/m10 (1 Low)20 (2 Low)
*2
10/07/2026
01:00:00
Toft Newton
Timeseries Graph
133 (5 Moderate)6 (1 Low)n/m9 (1 Low)17 (2 Low)
*2
10/07/2026
02:00:00

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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/m23 (1 Low)n/m14 (2 Low)23 (2 Low)
*2
10/07/2026
01:00:00
Cambridge King's Hedges
Timeseries Graph
n/mn/mn/m11 (1 Low)18 (2 Low)
*2
10/07/2026
01:00:00
Cambridge Roadside
Timeseries Graph
n/m63 (1 Low)n/mn/mn/m 09/07/2026
17:00:00
Luton A505 Roadside
Timeseries Graph
n/m87 (2 Low)n/m15 (2 Low)n/m 10/07/2026
01:00:00
Norwich Lakenfields
Timeseries Graph
78 (3 Low)15 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
10/07/2026
01:00:00
Peterborough Garton End
Timeseries Graph
n/mn/mn/m10 (1 Low)20 (2 Low)
*2
10/07/2026
01:00:00
Sibton
Timeseries Graph
64 (2 Low)n/mn/m6 (1 Low)11 (1 Low)
*2
10/07/2026
01:00:00
Southend Shoeburyness
Timeseries Graph
n/mn/mn/m6 (1 Low)11 (1 Low)
*2
10/07/2026
02:00:00
Southend-on-Sea
Timeseries Graph
91 (3 Low)28 (1 Low)n/m7 (1 Low)15 (1 Low)
*2
10/07/2026
02:00:00
St Osyth
Timeseries Graph
98 (3 Low)25 (1 Low)n/m8 (1 Low)17 (2 Low)
*2
10/07/2026
02:00:00
Stanford-le-Hope Roadside
Timeseries Graph
n/m44 (1 Low)n/m11 (1 Low)18 (2 Low)
*1
10/07/2026
02:00:00
Stevenage St Georges Way South
Timeseries Graph
n/mn/mn/m12 (2 Low)n/m 10/07/2026
01:00:00
Thurrock
Timeseries Graph
131 (5 Moderate)68 (2 Low)6 (1 Low)12 (2 Low)23 (2 Low)
*2
09/07/2026
16:00:00
Weybourne
Timeseries Graph
70 (3 Low)n/mn/m7 (1 Low)13 (1 Low)
*2
10/07/2026
01:00:00
Wicken Fen
Timeseries Graph
145 (6 Moderate)9 (1 Low)2 (1 Low)9 (1 Low)16 (1 Low)
*2
09/07/2026
17:45:00

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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/m34 (1 Low)n/m15 (2 Low)26 (2 Low)
*1
10/07/2026
01:00:00
Ealing Horn Lane
Timeseries Graph
n/mn/mn/mn/m60 (5 Moderate)
*1
10/07/2026
02:00:00
Haringey Roadside
Timeseries Graph
n/m48 (1 Low)n/mn/mn/m 09/07/2026
10:00:00
London A406 N Circular
Timeseries Graph
n/mn/mn/m16 (2 Low)n/m 10/07/2026
01:00:00
London Bexley
Timeseries Graph
n/m27 (1 Low)n/m12 (2 Low)20 (2 Low)
*2
10/07/2026
01:00:00
London Bloomsbury
Timeseries Graph
144 (6 Moderate)22 (1 Low)n/a13 (2 Low)23 (2 Low)
*2
08/07/2026
12:00:00
London Farringdon Street
Timeseries Graph
n/m41 (1 Low)n/m15 (2 Low)n/m 10/07/2026
01:00:00
London Haringey Priory Park South
Timeseries Graph
112 (4 Moderate)27 (1 Low)n/m15 (2 Low)33 (2 Low)
*2
10/07/2026
01:00:00
London Harlington
Timeseries Graph
140 (5 Moderate)52 (1 Low)n/m14 (2 Low)28 (2 Low)
*2
09/07/2026
12:00:00
London Hillingdon
Timeseries Graph
135 (5 Moderate)63 (1 Low)n/m14 (2 Low)29 (2 Low)
*2
10/07/2026
01:00:00
London Honor Oak Park
Timeseries Graph
158 (6 Moderate)n/mn/m12 (2 Low)19 (2 Low)
*2
10/07/2026
01:00:00
London Marylebone Road
Timeseries Graph
139 (5 Moderate)49 (1 Low)5 (1 Low)14 (2 Low)30 (2 Low)
*1
09/07/2026
06:45:00
London N. Kensington
Timeseries Graph
155 (6 Moderate)21 (1 Low)1 (1 Low)13 (2 Low)21 (2 Low)
*2
09/07/2026
02:45:00
London Norbury Manor School
Timeseries Graph
n/mn/mn/m12 (2 Low)19 (2 Low)
*2
10/07/2026
01:00:00
London Teddington Bushy Park
Timeseries Graph
n/mn/mn/m11 (1 Low)21 (2 Low)
*2
10/07/2026
01:00:00
London Westminster
Timeseries Graph
145 (6 Moderate)16 (1 Low)n/mn/mn/m 09/07/2026
19:00:00
Southwark A2 Old Kent Road
Timeseries Graph
n/m28 (1 Low)n/mn/m23 (2 Low)
*1
09/07/2026
12:00:00

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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
39 (2 Low)9 (1 Low)n/mn/mn/m 09/07/2026
19:00:00
Inverness
Timeseries Graph
n/m8 (1 Low)n/m2 (1 Low)3 (1 Low)
*2
10/07/2026
01:00:00
Lerwick
Timeseries Graph
50 (2 Low)n/mn/mn/mn/m 09/07/2026
21:00:00
Strathvaich
Timeseries Graph
45 (2 Low)n/mn/mn/mn/m 09/07/2026
23:00:00

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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/m12 (2 Low)18 (2 Low)
*2
10/07/2026
02:00:00
Hartlepool St Abbs Walk
Timeseries Graph
85 (3 Low)18 (1 Low)n/m13 (2 Low)23 (2 Low)
*2
10/07/2026
02:00:00
Kielder Water
Timeseries Graph
82 (3 Low)n/mn/m8 (1 Low)11 (1 Low)
*2
10/07/2026
02:00:00
Middlesbrough
Timeseries Graph
92 (3 Low)32 (1 Low)2 (1 Low)10 (1 Low)22 (2 Low)
*1
09/07/2026
21:45:00
Newcastle Centre
Timeseries Graph
95 (3 Low)24 (1 Low)n/m12 (2 Low)17 (2 Low)
*1
10/07/2026
02:00:00
Newcastle Cradlewell Roadside
Timeseries Graph
n/m58 (1 Low)n/m10 (1 Low)14 (1 Low)
*2
10/07/2026
02:00:00
North Shields Chirton
Timeseries Graph
n/mn/mn/m10 (1 Low)14 (1 Low)
*2
10/07/2026
02:00:00
Redcar Milford Walk
Timeseries Graph
n/mn/mn/m11 (1 Low)19 (2 Low)
*2
10/07/2026
02:00:00
Stockton-on-Tees A1305 Roadside
Timeseries Graph
n/m37 (1 Low)n/m13 (2 Low)n/m 10/07/2026
02:00:00
Stockton-on-Tees Eaglescliffe
Timeseries Graph
n/m37 (1 Low)n/m11 (1 Low)21 (2 Low)
*1
10/07/2026
02:00:00
Sunderland Silksworth
Timeseries Graph
83 (3 Low)20 (1 Low)n/m11 (1 Low)16 (1 Low)
*2
10/07/2026
01:00:00
Sunderland Wessington Way
Timeseries Graph
n/m30 (1 Low)n/m10 (1 Low)n/m 10/07/2026
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
70 (3 Low)26 (1 Low)n/m9 (1 Low)13 (1 Low)
*2
10/07/2026
02:00:00
Aberdeen Wellington Road
Timeseries Graph
n/m57 (1 Low)n/mn/mn/m 09/07/2026
20:00:00
Dundee Mains Loan
Timeseries Graph
n/m11 (1 Low)n/mn/mn/m 10/07/2026
01:00:00
Perth Glasgow Road
Timeseries Graph
n/m11 (1 Low)n/mn/mn/m 09/07/2026
08:00:00

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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
103 (4 Moderate)6 (1 Low)n/mn/mn/m 09/07/2026
21:00:00
Wrexham
Timeseries Graph
n/m41 (1 Low)6 (1 Low)10 (1 Low)16 (1 Low)
*2
09/07/2026
12:15:00

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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/m16 (1 Low)n/m10 (1 Low)n/m 10/07/2026
02:00:00
Blackburn Accrington Road
Timeseries Graph
n/m30 (1 Low)n/mn/mn/m 09/07/2026
08:00:00
Blackburn Audley Park
Timeseries Graph
92 (3 Low)n/mn/m13 (2 Low)18 (2 Low)
*2
10/07/2026
02:00:00
Blackpool Marton
Timeseries Graph
65 (2 Low)14 (1 Low)n/m11 (1 Low)14 (1 Low)
*2
10/07/2026
01:00:00
Blackpool Whitegate Drive
Timeseries Graph
n/mn/mn/m11 (1 Low)n/m 10/07/2026
01:00:00
Bury Whitefield Roadside
Timeseries Graph
n/m44 (1 Low)n/mn/m19 (2 Low)
*1
09/07/2026
08:00:00
Carlisle Morton A595
Timeseries Graph
n/m19 (1 Low)n/m8 (1 Low)10 (1 Low)
*1
10/07/2026
02:00:00
Crewe Coppenhall
Timeseries Graph
112 (4 Moderate)14 (1 Low)n/m12 (2 Low)18 (2 Low)
*2
10/07/2026
02:00:00
Glazebury
Timeseries Graph
100 (3 Low)n/an/m11 (1 Low)16 (1 Low)
*2
10/07/2026
02:00:00
Liverpool Speke
Timeseries Graph
64 (2 Low)36 (1 Low)3 (1 Low)n/an/a 09/07/2026
14:00:00
Liverpool Thirlmere Park
Timeseries Graph
48 (2 Low)n/mn/m11 (1 Low)20 (2 Low)
*2
10/07/2026
01:00:00
Manchester Piccadilly
Timeseries Graph
99 (3 Low)42 (1 Low)2 (1 Low)15 (2 Low)26 (2 Low)
*2
09/07/2026
07:15:00
Manchester Sharston
Timeseries Graph
114 (4 Moderate)24 (1 Low)n/m13 (2 Low)20 (2 Low)
*2
10/07/2026
02:00:00
Middlewich St Michael's Way
Timeseries Graph
n/mn/mn/m12 (2 Low)n/m 10/07/2026
01:00:00
Preston
Timeseries Graph
74 (3 Low)20 (1 Low)n/m12 (2 Low)18 (2 Low)
*2
10/07/2026
02:00:00
Salford Eccles
Timeseries Graph
107 (4 Moderate)38 (1 Low)n/m12 (2 Low)20 (2 Low)
*2
10/07/2026
02:00:00
Shaw Crompton Way
Timeseries Graph
n/m45 (1 Low)n/mn/mn/m 09/07/2026
15:00:00
St Helens Linkway
Timeseries Graph
n/m23 (1 Low)n/mn/m15 (1 Low)
*1
09/07/2026
08:00:00
Tameside A635 Manchester Road
Timeseries Graph
n/mn/mn/m11 (1 Low)n/m 10/07/2026
01:00:00
Warrington
Timeseries Graph
n/m22 (1 Low)n/mn/an/a 06/07/2026
16:00:00
Widnes Milton Road
Timeseries Graph
n/m27 (1 Low)n/mn/mn/m 09/07/2026
08:00:00
Wigan Centre
Timeseries Graph
83 (3 Low)18 (1 Low)n/m13 (2 Low)20 (2 Low)
*2
10/07/2026
02:00:00
Wirral Tranmere
Timeseries Graph
68 (3 Low)22 (1 Low)n/m9 (1 Low)11 (1 Low)
*2
10/07/2026
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/m31 (1 Low)n/mn/m11 (1 Low)
*1
09/07/2026
07:00:00
Ballymena Antrim Road
Timeseries Graph
n/m18 (1 Low)n/mn/mn/m 09/07/2026
19:00:00
Ballymena Ballykeel
Timeseries Graph
n/m12 (1 Low)3 (1 Low)n/mn/m 09/07/2026
02:30:00
Belfast Centre
Timeseries Graph
41 (2 Low)39 (1 Low)3 (1 Low)7 (1 Low)14 (1 Low)
*2
09/07/2026
17:45:00
Belfast Stockman's Lane
Timeseries Graph
n/m44 (1 Low)n/mn/m14 (1 Low)
*1
09/07/2026
21:00:00
Derry Rosemount
Timeseries Graph
39 (2 Low)12 (1 Low)2 (1 Low)2 (1 Low)5 (1 Low)
*1
10/07/2026
01:30:00
Lough Navar
Timeseries Graph
36 (2 Low)n/mn/m3 (1 Low)4 (1 Low)
*2
09/07/2026
04:00:00

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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/m27 (1 Low)n/mn/mn/m 09/07/2026
11:00:00
Eskdalemuir
Timeseries Graph
82 (3 Low)2 (1 Low)n/mn/mn/m 09/07/2026
20:00:00
Peebles
Timeseries Graph
64 (2 Low)6 (1 Low)n/mn/mn/m 09/07/2026
18:00:00

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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/m13 (2 Low)n/m 10/07/2026
01:00:00
Brighton Preston Park
Timeseries Graph
66 (2 Low)31 (1 Low)n/m7 (1 Low)13 (1 Low)
*2
10/07/2026
01:00:00
Chatham Roadside
Timeseries Graph
n/m34 (1 Low)n/m6 (1 Low)19 (2 Low)
*1
10/07/2026
01:00:00
Chilbolton Observatory
Timeseries Graph
129 (5 Moderate)10 (1 Low)4 (1 Low)10 (1 Low)17 (2 Low)
*2
09/07/2026
15:00:00
Eastbourne
Timeseries Graph
74 (3 Low)25 (1 Low)n/m7 (1 Low)12 (1 Low)
*2
10/07/2026
01:00:00
Farnborough Cherrywood
Timeseries Graph
n/mn/mn/m10 (1 Low)16 (1 Low)
*2
10/07/2026
01:00:00
Horley
Timeseries Graph
n/m58 (1 Low)n/m10 (1 Low)17 (2 Low)
*2
10/07/2026
01:00:00
Lullington Heath
Timeseries Graph
101 (4 Moderate)16 (1 Low)1 (1 Low)5 (1 Low)9 (1 Low)
*2
09/07/2026
19:15:00
Maidstone Upper Stone Street
Timeseries Graph
n/mn/mn/m12 (2 Low)24 (2 Low)
*2
10/07/2026
01:00:00
Milton Keynes Civic Centre
Timeseries Graph
128 (5 Moderate)n/mn/m14 (2 Low)23 (2 Low)
*2
10/07/2026
01:00:00
Oxford Centre Roadside
Timeseries Graph
n/m55 (1 Low)n/mn/mn/m 09/07/2026
23:00:00
Oxford St Ebbes
Timeseries Graph
122 (5 Moderate)72 (2 Low)n/m13 (2 Low)20 (2 Low)
*2
10/07/2026
01:00:00
Portsmouth
Timeseries Graph
76 (3 Low)72 (2 Low)n/m7 (1 Low)14 (1 Low)
*2
10/07/2026
01:00:00
Portsmouth Anglesea Road
Timeseries Graph
n/m40 (1 Low)n/m9 (1 Low)14 (1 Low)
*2
10/07/2026
01:00:00
Reading London Road
Timeseries Graph
n/m28 (1 Low)n/mn/mn/a 09/07/2026
09:00:00
Reading New Town
Timeseries Graph
112 (4 Moderate)28 (1 Low)n/m11 (1 Low)18 (2 Low)
*2
10/07/2026
01:00:00
Reading Rose Kiln Lane
Timeseries Graph
n/mn/mn/m12 (2 Low)n/m 10/07/2026
01:00:00
Rochester Stoke
Timeseries Graph
105 (4 Moderate)22 (1 Low)4 (1 Low)9 (1 Low)18 (2 Low)
*2
09/07/2026
13:45:00
Slough Windmill Bath Road
Timeseries Graph
n/mn/mn/m13 (2 Low)23 (2 Low)
*2
10/07/2026
01:00:00
Southampton A33
Timeseries Graph
n/m86 (2 Low)n/m10 (1 Low)20 (2 Low)
*2
10/07/2026
01:00:00
Southampton Centre
Timeseries Graph
82 (3 Low)63 (1 Low)9 (1 Low)11 (1 Low)19 (2 Low)
*2
09/07/2026
13:30:00
Storrington Roadside
Timeseries Graph
n/m32 (1 Low)n/m7 (1 Low)14 (1 Low)
*2
10/07/2026
01:00:00
Worthing A27 Roadside
Timeseries Graph
n/m27 (1 Low)n/m10 (1 Low)n/m 10/07/2026
01:00:00
Worthing East Ten Acres
Timeseries Graph
n/mn/mn/m10 (1 Low)15 (1 Low)
*2
10/07/2026
01:00:00

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South Wales

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Cardiff Centre
Timeseries Graph
83 (3 Low)28 (1 Low)2 (1 Low)10 (1 Low)15 (1 Low)
*1
09/07/2026
11:15:00
Cardiff Newport Road
Timeseries Graph
n/m48 (1 Low)n/mn/m21 (2 Low)
*1
09/07/2026
13:00:00
Chepstow A48
Timeseries Graph
n/m50 (1 Low)n/m5 (1 Low)12 (1 Low)
*1
10/07/2026
01:00:00
Cwmbran Crownbridge
Timeseries Graph
116 (4 Moderate)33 (1 Low)n/mn/mn/m 09/07/2026
21:00:00
Hafod-yr-ynys Hill Roadside
Timeseries Graph
n/m63 (1 Low)n/mn/mn/m 09/07/2026
21:00:00
Narberth
Timeseries Graph
78 (3 Low)4 (1 Low)3 (1 Low)3 (1 Low)6 (1 Low)
*2
09/07/2026
17:00:00
Newport
Timeseries Graph
n/m25 (1 Low)n/m12 (2 Low)24 (2 Low)
*2
10/07/2026
01:00:00
Port Talbot Margam
Timeseries Graph
80 (3 Low)26 (1 Low)n/a14 (2 Low)31 (2 Low)
*3
08/07/2026
13:45:00
Swansea Roadside
Timeseries Graph
n/m38 (1 Low)n/m14 (2 Low)15 (1 Low)
*1
10/07/2026
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
10/07/2026
02:00:00
Bath A4 Roadside
Timeseries Graph
n/m55 (1 Low)n/mn/mn/m 09/07/2026
17:00:00
Bournemouth
Timeseries Graph
108 (4 Moderate)29 (1 Low)n/m11 (1 Low)n/m 10/07/2026
02:00:00
Bournemouth Bourne Valley
Timeseries Graph
n/mn/mn/m8 (1 Low)14 (1 Low)
*2
10/07/2026
01:00:00
Bridgwater A372 Westonzoyland
Timeseries Graph
n/mn/mn/m5 (1 Low)n/m 10/07/2026
02:00:00
Bristol Patchway
Timeseries Graph
n/mn/mn/m8 (1 Low)17 (2 Low)
*2
10/07/2026
01:00:00
Bristol St Paul's
Timeseries Graph
96 (3 Low)27 (1 Low)n/m9 (1 Low)19 (2 Low)
*1
10/07/2026
01:00:00
Bristol Temple Way
Timeseries Graph
n/m43 (1 Low)n/m8 (1 Low)18 (2 Low)
*2
10/07/2026
01:00:00
Charlton Mackrell
Timeseries Graph
101 (4 Moderate)4 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
10/07/2026
01:00:00
Cheltenham A40 Gloucester Road
Timeseries Graph
n/mn/mn/m8 (1 Low)n/m 10/07/2026
01:00:00
Christchurch Barrack Road
Timeseries Graph
n/m51 (1 Low)n/m11 (1 Low)n/m 10/07/2026
01:00:00
Exeter Roadside
Timeseries Graph
98 (3 Low)38 (1 Low)n/mn/mn/m 09/07/2026
20:00:00
Gloucester Tredworth
Timeseries Graph
n/mn/mn/m10 (1 Low)17 (2 Low)
*2
10/07/2026
01:00:00
Honiton
Timeseries Graph
101 (4 Moderate)18 (1 Low)n/m9 (1 Low)13 (1 Low)
*2
10/07/2026
01:00:00
Plymouth Centre
Timeseries Graph
65 (2 Low)53 (1 Low)n/m9 (1 Low)24 (2 Low)
*2
10/07/2026
02:00:00
Plymouth Tavistock Road
Timeseries Graph
n/m45 (1 Low)n/mn/mn/m 09/07/2026
21:00:00
Saltash Callington Road
Timeseries Graph
n/mn/mn/mn/an/a 08/07/2026
11:00:00
Swindon Walcot
Timeseries Graph
119 (4 Moderate)17 (1 Low)n/m11 (1 Low)19 (2 Low)
*2
10/07/2026
01:00:00
Yarner Wood
Timeseries Graph
118 (4 Moderate)5 (1 Low)n/m8 (1 Low)12 (1 Low)
*2
10/07/2026
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
45 (2 Low)n/mn/mn/mn/m 09/07/2026
02:00:00

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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)26 (2 Low)
*2
10/07/2026
01:00:00
Birmingham A4540 Roadside
Timeseries Graph
152 (6 Moderate)51 (1 Low)n/m13 (2 Low)25 (2 Low)
*2
10/07/2026
01:00:00
Birmingham Hall Green
Timeseries Graph
174 (7 High)54 (1 Low)n/m13 (2 Low)22 (2 Low)
*2
10/07/2026
01:00:00
Birmingham Ladywood
Timeseries Graph
121 (5 Moderate)26 (1 Low)3 (1 Low)12 (2 Low)21 (2 Low)
*2
09/07/2026
15:15:00
Birmingham University
Timeseries Graph
n/mn/mn/m12 (2 Low)20 (2 Low)
*2
10/07/2026
01:00:00
Burton-on-Trent Horninglow
Timeseries Graph
136 (5 Moderate)20 (1 Low)n/m11 (1 Low)19 (2 Low)
*2
10/07/2026
01:00:00
Cannock A5190 Roadside
Timeseries Graph
n/m24 (1 Low)n/m12 (2 Low)n/m 10/07/2026
01:00:00
Coventry Allesley
Timeseries Graph
157 (6 Moderate)36 (1 Low)n/m12 (2 Low)22 (2 Low)
*2
10/07/2026
01:00:00
Coventry Binley Road
Timeseries Graph
n/m39 (1 Low)n/m12 (2 Low)22 (2 Low)
*2
10/07/2026
01:00:00
Leamington Spa
Timeseries Graph
139 (5 Moderate)27 (1 Low)n/m13 (2 Low)21 (2 Low)
*2
10/07/2026
01:00:00
Leamington Spa Rugby Road
Timeseries Graph
n/m29 (1 Low)n/m14 (2 Low)21 (2 Low)
*2
10/07/2026
01:00:00
Leominster
Timeseries Graph
113 (4 Moderate)9 (1 Low)n/mn/mn/m 09/07/2026
20:00:00
Oldbury Birmingham Road
Timeseries Graph
n/m47 (1 Low)n/m16 (2 Low)30 (2 Low)
*2
10/07/2026
01:00:00
Shrewsbury Underdale
Timeseries Graph
n/mn/mn/m11 (1 Low)18 (2 Low)
*2
10/07/2026
01:00:00
Stoke-on-Trent A50 Roadside
Timeseries Graph
n/m52 (1 Low)n/m13 (2 Low)22 (2 Low)
*2
10/07/2026
01:00:00
Stoke-on-Trent Centre
Timeseries Graph
115 (4 Moderate)35 (1 Low)n/m12 (2 Low)21 (2 Low)
*2
10/07/2026
01:00:00
Telford Hollinswood
Timeseries Graph
143 (6 Moderate)17 (1 Low)n/m10 (1 Low)19 (2 Low)
*2
10/07/2026
01:00:00
Walsall Caldmore
Timeseries Graph
n/mn/mn/m13 (2 Low)22 (2 Low)
*2
10/07/2026
01:00:00
Walsall Woodlands
Timeseries Graph
148 (6 Moderate)22 (1 Low)n/mn/mn/m 09/07/2026
21:00:00
West Bromwich Kenrick Park
Timeseries Graph
157 (6 Moderate)36 (1 Low)n/mn/mn/m 09/07/2026
21:00:00
Worcester Tolladine
Timeseries Graph
n/mn/mn/m12 (2 Low)19 (2 Low)
*2
10/07/2026
01:00:00

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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
129 (5 Moderate)23 (1 Low)2 (1 Low)13 (2 Low)22 (2 Low)
*2
09/07/2026
07:15:00
Bradford Mayo Avenue
Timeseries Graph
n/m46 (1 Low)n/mn/mn/m 09/07/2026
09:00:00
Bradford Shipley Airedale Road
Timeseries Graph
n/mn/mn/m12 (2 Low)19 (2 Low)
*2
10/07/2026
01:00:00
Dewsbury Ashworth Grange
Timeseries Graph
131 (5 Moderate)37 (1 Low)n/m13 (2 Low)19 (2 Low)
*2
10/07/2026
01:00:00
Doncaster A630 Cleveland Street
Timeseries Graph
n/m46 (1 Low)n/m15 (2 Low)n/m 10/07/2026
02:00:00
Harrogate Woodlands
Timeseries Graph
n/mn/mn/m10 (1 Low)15 (1 Low)
*2
10/07/2026
02:00:00
High Muffles
Timeseries Graph
94 (3 Low)4 (1 Low)n/m8 (1 Low)13 (1 Low)
*2
10/07/2026
01:00:00
Hull Freetown
Timeseries Graph
105 (4 Moderate)28 (1 Low)2 (1 Low)11 (1 Low)20 (2 Low)
*2
09/07/2026
14:15:00
Hull Holderness Road
Timeseries Graph
n/m47 (1 Low)n/m12 (2 Low)22 (2 Low)
*2
10/07/2026
02:00:00
Immingham Woodlands Avenue
Timeseries Graph
96 (3 Low)59 (1 Low)n/m11 (1 Low)20 (2 Low)
*2
10/07/2026
02:00:00
Leeds Centre
Timeseries Graph
111 (4 Moderate)26 (1 Low)6 (1 Low)12 (2 Low)17 (2 Low)
*2
09/07/2026
14:45:00
Leeds Headingley Kerbside
Timeseries Graph
n/m27 (1 Low)n/m13 (2 Low)20 (2 Low)
*1
10/07/2026
01:00:00
Rotherham East Dene
Timeseries Graph
n/mn/mn/m13 (2 Low)22 (2 Low)
*2
10/07/2026
01:00:00
Scunthorpe Town
Timeseries Graph
n/m27 (1 Low)6 (1 Low)11 (1 Low)20 (2 Low)
*1
09/07/2026
17:45:00
Sheffield Barnsley Road
Timeseries Graph
n/m48 (1 Low)n/m13 (2 Low)n/m 10/07/2026
02:00:00
Sheffield Devonshire Green
Timeseries Graph
122 (5 Moderate)41 (1 Low)n/m14 (2 Low)21 (2 Low)
*2
10/07/2026
01:00:00
Sheffield Tinsley
Timeseries Graph
128 (5 Moderate)44 (1 Low)n/m13 (2 Low)21 (2 Low)
*2
10/07/2026
01:00:00
Wakefield Alverthorpe
Timeseries Graph
n/mn/mn/m15 (2 Low)23 (2 Low)
*2
10/07/2026
02:00:00
York Bootham
Timeseries Graph
108 (4 Moderate)18 (1 Low)n/m10 (1 Low)15 (1 Low)
*1
10/07/2026
02:00:00
York Fishergate
Timeseries Graph
n/m26 (1 Low)n/m8 (1 Low)20 (2 Low)
*1
10/07/2026
01:00:00

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