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 1am Fri 11th Jul 2025

Filter by region:

Central Scotland

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Auchencorth Moss
Timeseries Graph
52 (2 Low)n/mn/m3 (1 Low)6 (1 Low)
*2
11/07/2025
01:00:00
Bush Estate
Timeseries Graph
52 (2 Low)4 (1 Low)n/mn/mn/m 10/07/2025
20:00:00
Dumbarton Roadside
Timeseries Graph
n/m16 (1 Low)n/mn/mn/m 10/07/2025
24:00:
Edinburgh Nicolson Street
Timeseries Graph
n/m36 (1 Low)n/mn/mn/m 10/07/2025
09:00:00
Edinburgh St Leonards
Timeseries Graph
25 (1 Low)15 (1 Low)5 (1 Low)4 (1 Low)7 (1 Low)
*2
10/07/2025
12:45:00
Glasgow Great Western Road
Timeseries Graph
n/m29 (1 Low)n/mn/mn/m 10/07/2025
24:00:
Glasgow High Street
Timeseries Graph
n/m31 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
11/07/2025
01:00:00
Glasgow Kerbside
Timeseries Graph
n/m41 (1 Low)n/mn/mn/m 10/07/2025
24:00:
Glasgow Townhead
Timeseries Graph
43 (2 Low)33 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
11/07/2025
01:00:00
Grangemouth
Timeseries Graph
n/m14 (1 Low)2 (1 Low)2 (1 Low)6 (1 Low)
*1
10/07/2025
18:15:00
Grangemouth Moray
Timeseries Graph
n/m9 (1 Low)n/mn/mn/m 10/07/2025
22:00:00
Greenock A8 Roadside
Timeseries Graph
n/m25 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
11/07/2025
01:00:00

Back to top

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
100 (3 Low)10 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
11/07/2025
01:00:00
Chesterfield Roadside
Timeseries Graph
n/m13 (1 Low)n/m3 (1 Low)9 (1 Low)
*2
11/07/2025
01:00:00
Derby St Alkmund's Way
Timeseries Graph
n/m56 (1 Low)n/m4 (1 Low)n/m 11/07/2025
01:00:00
Derby Stockbrook Park
Timeseries Graph
93 (3 Low)n/mn/m3 (1 Low)8 (1 Low)
*2
11/07/2025
01:00:00
Ladybower
Timeseries Graph
108 (4 Moderate)7 (1 Low)2 (1 Low)2 (1 Low)5 (1 Low)
*2
10/07/2025
20:45:00
Leicester A594 Roadside
Timeseries Graph
n/m85 (2 Low)n/m4 (1 Low)10 (1 Low)
*2
11/07/2025
01:00:00
Leicester University
Timeseries Graph
88 (3 Low)32 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
11/07/2025
01:00:00
Lincoln Canwick Road
Timeseries Graph
n/m50 (1 Low)n/mn/mn/m 10/07/2025
18:00:00
Loughborough Thorpe Acre
Timeseries Graph
n/mn/mn/m4 (1 Low)10 (1 Low)
*2
11/07/2025
01:00:00
Mansfield Ladybrook
Timeseries Graph
n/mn/mn/m3 (1 Low)9 (1 Low)
*2
11/07/2025
01:00:00
Northampton Spring Park
Timeseries Graph
87 (3 Low)17 (1 Low)n/m6 (1 Low)n/m 11/07/2025
01:00:00
Nottingham Bilborough
Timeseries Graph
n/mn/mn/m3 (1 Low)8 (1 Low)
*2
11/07/2025
01:00:00
Nottingham Kenmore Gardens
Timeseries Graph
94 (3 Low)18 (1 Low)2 (1 Low)3 (1 Low)8 (1 Low)
*2
10/07/2025
08:45:00
Nottingham Western Boulevard
Timeseries Graph
n/m31 (1 Low)n/m4 (1 Low)12 (1 Low)
*2
11/07/2025
01:00:00
Tallington
Timeseries Graph
92 (3 Low)n/mn/m3 (1 Low)8 (1 Low)
*2
11/07/2025
01:00:00
Toft Newton
Timeseries Graph
109 (4 Moderate)11 (1 Low)n/m4 (1 Low)11 (1 Low)
*2
11/07/2025
01:00:00

Back to top

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/m21 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
11/07/2025
01:00:00
Cambridge Roadside
Timeseries Graph
n/m36 (1 Low)n/mn/mn/m 10/07/2025
19:00:00
Luton A505 Roadside
Timeseries Graph
n/m71 (2 Low)n/m4 (1 Low)n/m 11/07/2025
01:00:00
Norwich Lakenfields
Timeseries Graph
87 (3 Low)19 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
11/07/2025
01:00:00
Peterborough Garton End
Timeseries Graph
n/mn/mn/m3 (1 Low)8 (1 Low)
*2
11/07/2025
01:00:00
Sibton
Timeseries Graph
85 (3 Low)n/mn/m6 (1 Low)20 (2 Low)
*2
11/07/2025
01:00:00
Southend Shoeburyness
Timeseries Graph
n/mn/mn/m4 (1 Low)9 (1 Low)
*2
11/07/2025
01:00:00
Southend-on-Sea
Timeseries Graph
93 (3 Low)23 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
11/07/2025
01:00:00
St Osyth
Timeseries Graph
95 (3 Low)24 (1 Low)n/m4 (1 Low)13 (1 Low)
*2
11/07/2025
01:00:00
Stanford-le-Hope Roadside
Timeseries Graph
n/m56 (1 Low)n/m8 (1 Low)13 (1 Low)
*1
11/07/2025
01:00:00
Thurrock
Timeseries Graph
90 (3 Low)65 (1 Low)4 (1 Low)5 (1 Low)14 (1 Low)
*2
10/07/2025
05:15:00
Weybourne
Timeseries Graph
88 (3 Low)n/mn/m4 (1 Low)10 (1 Low)
*2
11/07/2025
01:00:00
Wicken Fen
Timeseries Graph
92 (3 Low)5 (1 Low)3 (1 Low)3 (1 Low)8 (1 Low)
*2
10/07/2025
20:15:00

Back to top

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/m62 (1 Low)n/m8 (1 Low)19 (2 Low)
*1
11/07/2025
01:00:00
Ealing Horn Lane
Timeseries Graph
n/mn/mn/mn/m35 (3 Low)
*1
11/07/2025
01:00:00
Haringey Roadside
Timeseries Graph
n/m38 (1 Low)n/mn/mn/m 11/07/2025
01:00:00
London Bexley
Timeseries Graph
n/m59 (1 Low)n/m5 (1 Low)12 (1 Low)
*2
11/07/2025
01:00:00
London Bloomsbury
Timeseries Graph
82 (3 Low)55 (1 Low)4 (1 Low)4 (1 Low)9 (1 Low)
*2
10/07/2025
21:45:00
London Haringey Priory Park South
Timeseries Graph
93 (3 Low)41 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
11/07/2025
01:00:00
London Harlington
Timeseries Graph
54 (2 Low)51 (1 Low)n/m4 (1 Low)13 (1 Low)
*2
10/07/2025
01:00:00
London Hillingdon
Timeseries Graph
77 (3 Low)40 (1 Low)n/m4 (1 Low)10 (1 Low)
*2
11/07/2025
01:00:00
London Honor Oak Park
Timeseries Graph
100 (3 Low)n/mn/m4 (1 Low)8 (1 Low)
*2
11/07/2025
01:00:00
London Marylebone Road
Timeseries Graph
66 (2 Low)80 (2 Low)4 (1 Low)5 (1 Low)16 (1 Low)
*1
10/07/2025
23:15:00
London N. Kensington
Timeseries Graph
93 (3 Low)31 (1 Low)1 (1 Low)4 (1 Low)9 (1 Low)
*2
10/07/2025
09:15:00
London Norbury Manor School
Timeseries Graph
n/mn/mn/m4 (1 Low)8 (1 Low)
*2
11/07/2025
01:00:00
London Teddington Bushy Park
Timeseries Graph
n/mn/mn/m4 (1 Low)9 (1 Low)
*2
11/07/2025
01:00:00
London Westminster
Timeseries Graph
64 (2 Low)28 (1 Low)n/m3 (1 Low)n/m 11/07/2025
01:00:00
Southwark A2 Old Kent Road
Timeseries Graph
n/m49 (1 Low)n/mn/m20 (2 Low)
*1
11/07/2025
01:00:00

Back to top

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
41 (2 Low)7 (1 Low)n/mn/mn/m 10/07/2025
02:00:00
Inverness
Timeseries Graph
n/m5 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
11/07/2025
01:00:00
Lerwick
Timeseries Graph
53 (2 Low)n/mn/mn/mn/m 10/07/2025
02:00:00
Strathvaich
Timeseries Graph
47 (2 Low)n/mn/mn/mn/m 10/07/2025
09:00:00

Back to top

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
55 (2 Low)13 (1 Low)n/m4 (1 Low)9 (1 Low)
*2
11/07/2025
01:00:00
Kielder Water
Timeseries Graph
59 (2 Low)n/mn/m3 (1 Low)5 (1 Low)
*2
11/07/2025
01:00:00
Middlesbrough
Timeseries Graph
61 (2 Low)42 (1 Low)2 (1 Low)2 (1 Low)14 (1 Low)
*1
11/07/2025
01:00:00
Newcastle Centre
Timeseries Graph
61 (2 Low)17 (1 Low)n/m4 (1 Low)9 (1 Low)
*1
11/07/2025
01:00:00
Newcastle Cradlewell Roadside
Timeseries Graph
n/m48 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
11/07/2025
01:00:00
Stockton-on-Tees A1305 Roadside
Timeseries Graph
n/m43 (1 Low)n/m4 (1 Low)n/m 11/07/2025
01:00:00
Stockton-on-Tees Eaglescliffe
Timeseries Graph
n/m15 (1 Low)n/m3 (1 Low)10 (1 Low)
*1
11/07/2025
01:00:00
Sunderland Silksworth
Timeseries Graph
50 (2 Low)27 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
11/07/2025
01:00:00
Sunderland Wessington Way
Timeseries Graph
n/m31 (1 Low)n/m3 (1 Low)n/m 11/07/2025
01:00:00

Back to top

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
45 (2 Low)23 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
11/07/2025
01:00:00
Aberdeen Wellington Road
Timeseries Graph
n/m59 (1 Low)n/mn/mn/m 10/07/2025
22:00:00
Dundee Mains Loan
Timeseries Graph
n/m6 (1 Low)n/mn/mn/m 10/07/2025
23:00:00
Perth Glasgow Road
Timeseries Graph
n/m29 (1 Low)n/mn/mn/m 11/07/2025
01:00:00

Back to top

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
63 (2 Low)6 (1 Low)n/mn/mn/m 10/07/2025
19:00:00
Wrexham
Timeseries Graph
n/m23 (1 Low)1 (1 Low)5 (1 Low)9 (1 Low)
*2
10/07/2025
07:15:00

Back to top

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/m32 (1 Low)n/m6 (1 Low)n/m 11/07/2025
01:00:00
Blackburn Accrington Road
Timeseries Graph
n/m44 (1 Low)n/mn/mn/m 10/07/2025
24:00:
Blackburn Audley Park
Timeseries Graph
76 (3 Low)n/mn/m7 (1 Low)12 (1 Low)
*2
11/07/2025
01:00:00
Blackpool Marton
Timeseries Graph
68 (3 Low)17 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
11/07/2025
01:00:00
Blackpool Whitegate Drive
Timeseries Graph
n/mn/mn/m6 (1 Low)n/m 11/07/2025
01:00:00
Bury Whitefield Roadside
Timeseries Graph
n/m33 (1 Low)n/mn/m15 (1 Low)
*1
11/07/2025
01:00:00
Carlisle Morton A595
Timeseries Graph
n/m6 (1 Low)n/m6 (1 Low)8 (1 Low)
*1
11/07/2025
01:00:00
Crewe Coppenhall
Timeseries Graph
103 (4 Moderate)28 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
11/07/2025
01:00:00
Glazebury
Timeseries Graph
93 (3 Low)18 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
11/07/2025
01:00:00
Liverpool Speke
Timeseries Graph
84 (3 Low)49 (1 Low)16 (1 Low)n/an/a 10/07/2025
09:30:00
Liverpool Thirlmere Park
Timeseries Graph
63 (2 Low)n/mn/m8 (1 Low)23 (2 Low)
*2
11/07/2025
01:00:00
Manchester Piccadilly
Timeseries Graph
88 (3 Low)48 (1 Low)3 (1 Low)7 (1 Low)17 (2 Low)
*2
10/07/2025
10:15:00
Manchester Sharston
Timeseries Graph
97 (3 Low)44 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
11/07/2025
01:00:00
Middlewich St Michael's Way
Timeseries Graph
n/mn/mn/m6 (1 Low)n/m 11/07/2025
01:00:00
Preston
Timeseries Graph
70 (3 Low)24 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
11/07/2025
01:00:00
Salford Eccles
Timeseries Graph
91 (3 Low)30 (1 Low)n/m7 (1 Low)15 (1 Low)
*2
11/07/2025
01:00:00
Shaw Crompton Way
Timeseries Graph
n/m40 (1 Low)n/mn/mn/m 10/07/2025
16:00:00
St Helens Linkway
Timeseries Graph
n/m38 (1 Low)n/mn/m9 (1 Low)
*1
10/07/2025
07:00:00
Tameside A635 Manchester Road
Timeseries Graph
n/mn/mn/m7 (1 Low)n/m 11/07/2025
01:00:00
Warrington
Timeseries Graph
n/m19 (1 Low)n/m5 (1 Low)10 (1 Low)
*1
11/07/2025
01:00:00
Widnes Milton Road
Timeseries Graph
n/m46 (1 Low)n/mn/mn/m 10/07/2025
08:00:00
Wigan Centre
Timeseries Graph
81 (3 Low)27 (1 Low)n/m5 (1 Low)11 (1 Low)
*2
11/07/2025
01:00:00
Wirral Tranmere
Timeseries Graph
79 (3 Low)17 (1 Low)n/m6 (1 Low)9 (1 Low)
*2
11/07/2025
01:00:00

Back to top

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/m37 (1 Low)n/mn/m11 (1 Low)
*1
09/07/2025
21:00:00
Ballymena Antrim Road
Timeseries Graph
n/m29 (1 Low)n/mn/mn/m 10/07/2025
21:00:00
Ballymena Ballykeel
Timeseries Graph
n/m22 (1 Low)3 (1 Low)n/mn/m 10/07/2025
17:15:00
Belfast Centre
Timeseries Graph
36 (2 Low)34 (1 Low)2 (1 Low)5 (1 Low)9 (1 Low)
*2
10/07/2025
02:30:00
Belfast Stockman's Lane
Timeseries Graph
n/m46 (1 Low)n/mn/m11 (1 Low)
*1
10/07/2025
16:00:00
Derry Rosemount
Timeseries Graph
43 (2 Low)9 (1 Low)2 (1 Low)1 (1 Low)4 (1 Low)
*1
10/07/2025
02:30:00
Lough Navar
Timeseries Graph
39 (2 Low)n/mn/m2 (1 Low)4 (1 Low)
*2
11/07/2025
01:00:00

Back to top

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/m36 (1 Low)n/mn/mn/m 10/07/2025
13:00:00
Eskdalemuir
Timeseries Graph
61 (2 Low)3 (1 Low)n/mn/mn/m 10/07/2025
18:00:00
Peebles
Timeseries Graph
51 (2 Low)3 (1 Low)n/mn/mn/m 10/07/2025
17:00:00

Back to top

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
76 (3 Low)31 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
11/07/2025
01:00:00
Chatham Roadside
Timeseries Graph
n/m25 (1 Low)n/m5 (1 Low)17 (2 Low)
*1
11/07/2025
01:00:00
Chilbolton Observatory
Timeseries Graph
88 (3 Low)9 (1 Low)2 (1 Low)4 (1 Low)8 (1 Low)
*2
10/07/2025
24:45:
Eastbourne
Timeseries Graph
96 (3 Low)37 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
11/07/2025
01:00:00
Farnborough Cherrywood
Timeseries Graph
n/mn/mn/m3 (1 Low)7 (1 Low)
*2
11/07/2025
01:00:00
Horley
Timeseries Graph
n/m25 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
11/07/2025
01:00:00
Lullington Heath
Timeseries Graph
100 (3 Low)13 (1 Low)1 (1 Low)4 (1 Low)7 (1 Low)
*2
09/07/2025
21:15:00
Maidstone Upper Stone Street
Timeseries Graph
n/mn/mn/m5 (1 Low)11 (1 Low)
*2
11/07/2025
01:00:00
Milton Keynes Civic Centre
Timeseries Graph
93 (3 Low)n/mn/m3 (1 Low)7 (1 Low)
*2
11/07/2025
01:00:00
Oxford Centre Roadside
Timeseries Graph
n/m60 (1 Low)n/mn/mn/m 10/07/2025
23:00:00
Oxford St Ebbes
Timeseries Graph
86 (3 Low)63 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
11/07/2025
01:00:00
Portsmouth
Timeseries Graph
96 (3 Low)34 (1 Low)n/m5 (1 Low)13 (1 Low)
*2
11/07/2025
01:00:00
Portsmouth Anglesea Road
Timeseries Graph
n/m37 (1 Low)n/m5 (1 Low)11 (1 Low)
*2
11/07/2025
01:00:00
Reading London Road
Timeseries Graph
n/m52 (1 Low)n/mn/mn/a 10/07/2025
22:00:00
Reading New Town
Timeseries Graph
82 (3 Low)20 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
11/07/2025
01:00:00
Reading Rose Kiln Lane
Timeseries Graph
n/mn/mn/m4 (1 Low)n/m 11/07/2025
01:00:00
Rochester Stoke
Timeseries Graph
93 (3 Low)40 (1 Low)3 (1 Low)5 (1 Low)10 (1 Low)
*2
10/07/2025
07:15:00
Slough Windmill Bath Road
Timeseries Graph
n/mn/mn/m5 (1 Low)14 (1 Low)
*2
11/07/2025
01:00:00
Southampton A33
Timeseries Graph
n/m42 (1 Low)n/m4 (1 Low)10 (1 Low)
*2
11/07/2025
01:00:00
Southampton Centre
Timeseries Graph
81 (3 Low)56 (1 Low)2 (1 Low)5 (1 Low)11 (1 Low)
*2
10/07/2025
02:30:00
Storrington Roadside
Timeseries Graph
n/m41 (1 Low)n/m4 (1 Low)11 (1 Low)
*2
10/07/2025
01:00:00
Worthing A27 Roadside
Timeseries Graph
n/m38 (1 Low)n/m6 (1 Low)n/m 11/07/2025
01:00:00
Worthing East Ten Acres
Timeseries Graph
n/mn/mn/m6 (1 Low)10 (1 Low)
*2
11/07/2025
01:00:00

Back to top

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
72 (3 Low)28 (1 Low)2 (1 Low)12 (2 Low)13 (1 Low)
*1
10/07/2025
10:45:00
Cardiff Newport Road
Timeseries Graph
n/m33 (1 Low)n/mn/m11 (1 Low)
*1
10/07/2025
12:00:00
Chepstow A48
Timeseries Graph
n/m48 (1 Low)n/m3 (1 Low)10 (1 Low)
*1
11/07/2025
01:00:00
Cwmbran Crownbridge
Timeseries Graph
90 (3 Low)8 (1 Low)n/mn/mn/m 10/07/2025
19:00:00
Hafod-yr-ynys Hill Roadside
Timeseries Graph
n/m33 (1 Low)n/mn/mn/m 10/07/2025
21:00:00
Narberth
Timeseries Graph
69 (3 Low)6 (1 Low)2 (1 Low)4 (1 Low)7 (1 Low)
*2
10/07/2025
20:00:00
Newport
Timeseries Graph
n/m16 (1 Low)n/m4 (1 Low)12 (1 Low)
*2
11/07/2025
01:00:00
Port Talbot Margam
Timeseries Graph
71 (3 Low)17 (1 Low)2 (1 Low)4 (1 Low)14 (1 Low)
*3
10/07/2025
20:45:00
Swansea Roadside
Timeseries Graph
n/m20 (1 Low)n/m6 (1 Low)12 (1 Low)
*1
11/07/2025
01:00:00

Back to top

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/m4 (1 Low)8 (1 Low)
*2
11/07/2025
01:00:00
Bath A4 Roadside
Timeseries Graph
n/m42 (1 Low)n/mn/mn/m 10/07/2025
20:00:00
Bournemouth
Timeseries Graph
89 (3 Low)11 (1 Low)n/m6 (1 Low)n/m 11/07/2025
01:00:00
Bristol St Paul's
Timeseries Graph
78 (3 Low)37 (1 Low)n/m5 (1 Low)13 (1 Low)
*1
11/07/2025
01:00:00
Bristol Temple Way
Timeseries Graph
n/m43 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
11/07/2025
01:00:00
Charlton Mackrell
Timeseries Graph
74 (3 Low)10 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
11/07/2025
01:00:00
Cheltenham A40 Gloucester Road
Timeseries Graph
n/mn/mn/m2 (1 Low)n/m 11/07/2025
01:00:00
Christchurch Barrack Road
Timeseries Graph
n/m24 (1 Low)n/m7 (1 Low)n/m 11/07/2025
01:00:00
Exeter Roadside
Timeseries Graph
97 (3 Low)24 (1 Low)n/mn/mn/m 10/07/2025
19:00:00
Gloucester Tredworth
Timeseries Graph
n/mn/mn/m4 (1 Low)9 (1 Low)
*2
11/07/2025
01:00:00
Honiton
Timeseries Graph
78 (3 Low)13 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
11/07/2025
01:00:00
London Farringdon Street
Timeseries Graph
n/m47 (1 Low)n/m5 (1 Low)n/m 11/07/2025
01:00:00
Plymouth Centre
Timeseries Graph
69 (3 Low)45 (1 Low)n/m5 (1 Low)12 (1 Low)
*2
11/07/2025
01:00:00
Plymouth Tavistock Road
Timeseries Graph
n/m43 (1 Low)n/mn/mn/m 10/07/2025
22:00:00
Saltash Callington Road
Timeseries Graph
n/mn/mn/mn/an/a 09/07/2025
01:00:00
Swindon Walcot
Timeseries Graph
75 (3 Low)15 (1 Low)n/m3 (1 Low)8 (1 Low)
*2
11/07/2025
01:00:00
Yarner Wood
Timeseries Graph
84 (3 Low)3 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
11/07/2025
01:00:00

Back to top

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
44 (2 Low)n/mn/mn/mn/m 10/07/2025
24:00:

Back to top

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
104 (4 Moderate)50 (1 Low)n/m5 (1 Low)11 (1 Low)
*2
11/07/2025
01:00:00
Birmingham Hall Green
Timeseries Graph
123 (5 Moderate)49 (1 Low)n/m5 (1 Low)11 (1 Low)
*2
11/07/2025
01:00:00
Birmingham Ladywood
Timeseries Graph
107 (4 Moderate)29 (1 Low)2 (1 Low)5 (1 Low)11 (1 Low)
*2
10/07/2025
11:15:00
Burton-on-Trent Horninglow
Timeseries Graph
107 (4 Moderate)29 (1 Low)n/m3 (1 Low)8 (1 Low)
*2
11/07/2025
01:00:00
Cannock A5190 Roadside
Timeseries Graph
n/m21 (1 Low)n/m4 (1 Low)n/m 11/07/2025
01:00:00
Coventry Allesley
Timeseries Graph
120 (4 Moderate)28 (1 Low)n/m4 (1 Low)9 (1 Low)
*2
11/07/2025
01:00:00
Coventry Binley Road
Timeseries Graph
n/m42 (1 Low)n/m7 (1 Low)13 (1 Low)
*2
11/07/2025
01:00:00
Leamington Spa
Timeseries Graph
137 (5 Moderate)26 (1 Low)n/m4 (1 Low)9 (1 Low)
*2
11/07/2025
01:00:00
Leamington Spa Rugby Road
Timeseries Graph
n/m25 (1 Low)n/m2 (1 Low)2 (1 Low)
*2
11/07/2025
01:00:00
Leominster
Timeseries Graph
68 (3 Low)8 (1 Low)n/mn/mn/m 10/07/2025
20:00:00
Oldbury Birmingham Road
Timeseries Graph
n/m43 (1 Low)n/m6 (1 Low)13 (1 Low)
*2
11/07/2025
01:00:00
Shrewsbury Underdale
Timeseries Graph
n/mn/mn/m4 (1 Low)8 (1 Low)
*2
11/07/2025
01:00:00
Stoke-on-Trent A50 Roadside
Timeseries Graph
n/m55 (1 Low)n/m15 (2 Low)27 (2 Low)
*2
11/07/2025
01:00:00
Stoke-on-Trent Centre
Timeseries Graph
94 (3 Low)25 (1 Low)n/m5 (1 Low)12 (1 Low)
*2
11/07/2025
01:00:00
Telford Hollinswood
Timeseries Graph
94 (3 Low)17 (1 Low)n/m4 (1 Low)10 (1 Low)
*2
11/07/2025
01:00:00
Walsall Woodlands
Timeseries Graph
102 (4 Moderate)19 (1 Low)n/mn/mn/m 10/07/2025
21:00:00
West Bromwich Kenrick Park
Timeseries Graph
104 (4 Moderate)0 (1 Low)n/mn/mn/m 10/07/2025
21:00:00
Worcester Tolladine
Timeseries Graph
n/mn/mn/m4 (1 Low)8 (1 Low)
*2
11/07/2025
01:00:00

Back to top

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)18 (1 Low)2 (1 Low)3 (1 Low)8 (1 Low)
*2
10/07/2025
07:15:00
Bradford Mayo Avenue
Timeseries Graph
n/m36 (1 Low)n/mn/mn/m 10/07/2025
21:00:00
Bradford Shipley Airedale Road
Timeseries Graph
n/mn/mn/m4 (1 Low)9 (1 Low)
*2
11/07/2025
01:00:00
Dewsbury Ashworth Grange
Timeseries Graph
91 (3 Low)22 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
11/07/2025
01:00:00
Doncaster A630 Cleveland Street
Timeseries Graph
n/m63 (1 Low)n/m4 (1 Low)n/m 11/07/2025
01:00:00
Harrogate Woodlands
Timeseries Graph
n/mn/mn/m2 (1 Low)5 (1 Low)
*2
11/07/2025
01:00:00
High Muffles
Timeseries Graph
75 (3 Low)4 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
11/07/2025
01:00:00
Hull Freetown
Timeseries Graph
65 (2 Low)34 (1 Low)4 (1 Low)4 (1 Low)11 (1 Low)
*2
10/07/2025
07:45:00
Hull Holderness Road
Timeseries Graph
n/m33 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
11/07/2025
01:00:00
Immingham Woodlands Avenue
Timeseries Graph
64 (2 Low)22 (1 Low)n/m4 (1 Low)9 (1 Low)
*2
11/07/2025
01:00:00
Leeds Centre
Timeseries Graph
82 (3 Low)17 (1 Low)1 (1 Low)3 (1 Low)7 (1 Low)
*2
10/07/2025
16:30:00
Leeds Headingley Kerbside
Timeseries Graph
n/m29 (1 Low)n/m7 (1 Low)22 (2 Low)
*1
11/07/2025
01:00:00
Rotherham East Dene
Timeseries Graph
n/mn/mn/m6 (1 Low)11 (1 Low)
*2
11/07/2025
01:00:00
Scunthorpe Town
Timeseries Graph
n/m16 (1 Low)2 (1 Low)8 (1 Low)17 (2 Low)
*1
10/07/2025
19:30:00
Sheffield Barnsley Road
Timeseries Graph
n/m49 (1 Low)n/m6 (1 Low)n/m 11/07/2025
01:00:00
Sheffield Devonshire Green
Timeseries Graph
n/a25 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
11/07/2025
01:00:00
Sheffield Tinsley
Timeseries Graph
88 (3 Low)30 (1 Low)n/m4 (1 Low)12 (1 Low)
*2
11/07/2025
01:00:00
York Bootham
Timeseries Graph
72 (3 Low)23 (1 Low)n/m3 (1 Low)8 (1 Low)
*1
11/07/2025
01:00:00
York Fishergate
Timeseries Graph
n/m22 (1 Low)n/m4 (1 Low)17 (2 Low)
*1
11/07/2025
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