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 Sat 20th Jun 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
47 (2 Low)n/mn/m0 (1 Low)1 (1 Low)
*2
20/06/2026
01:00:00
Bush Estate
Timeseries Graph
51 (2 Low)2 (1 Low)n/mn/mn/m 19/06/2026
24:00:
Dumbarton Roadside
Timeseries Graph
n/m20 (1 Low)n/mn/mn/m 19/06/2026
23:00:00
Edinburgh Nicolson Street
Timeseries Graph
n/m29 (1 Low)n/mn/mn/m 19/06/2026
24:00:
Edinburgh St Leonards
Timeseries Graph
43 (2 Low)9 (1 Low)2 (1 Low)1 (1 Low)2 (1 Low)
*2
19/06/2026
04:00:00
Glasgow Great Western Road
Timeseries Graph
n/m25 (1 Low)n/mn/mn/m 19/06/2026
13:00:00
Glasgow High Street
Timeseries Graph
n/m19 (1 Low)n/m2 (1 Low)6 (1 Low)
*2
20/06/2026
08:00:00
Glasgow Kerbside
Timeseries Graph
n/m42 (1 Low)n/mn/mn/m 19/06/2026
14:00:00
Glasgow Townhead
Timeseries Graph
41 (2 Low)21 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
20/06/2026
08:00:00
Grangemouth
Timeseries Graph
n/m9 (1 Low)4 (1 Low)1 (1 Low)3 (1 Low)
*1
19/06/2026
24:45:
Grangemouth Moray
Timeseries Graph
n/m9 (1 Low)n/mn/mn/m 20/06/2026
01:00:00
Greenock A8 Roadside
Timeseries Graph
n/m29 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
20/06/2026
08:00:00

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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
23 (1 Low)2 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
20/06/2026
01:00:00
Chesterfield Roadside
Timeseries Graph
n/m12 (1 Low)n/m2 (1 Low)6 (1 Low)
*2
20/06/2026
01:00:00
Derby St Alkmund's Way
Timeseries Graph
n/m31 (1 Low)n/m4 (1 Low)n/m 20/06/2026
01:00:00
Derby Stockbrook Park
Timeseries Graph
53 (2 Low)n/mn/m3 (1 Low)7 (1 Low)
*2
20/06/2026
01:00:00
Ladybower
Timeseries Graph
57 (2 Low)3 (1 Low)1 (1 Low)2 (1 Low)4 (1 Low)
*2
19/06/2026
20:15:00
Leicester A594 Roadside
Timeseries Graph
n/m24 (1 Low)n/m4 (1 Low)9 (1 Low)
*2
20/06/2026
01:00:00
Leicester University
Timeseries Graph
61 (2 Low)16 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
20/06/2026
01:00:00
Lincoln Canwick Road
Timeseries Graph
n/m46 (1 Low)n/mn/mn/m 19/06/2026
21:00:00
Loughborough Thorpe Acre
Timeseries Graph
n/mn/mn/m3 (1 Low)7 (1 Low)
*2
20/06/2026
01:00:00
Mansfield Ladybrook
Timeseries Graph
n/mn/mn/m3 (1 Low)8 (1 Low)
*2
20/06/2026
01:00:00
Northampton Spring Park
Timeseries Graph
68 (3 Low)11 (1 Low)n/m9 (1 Low)n/m 20/06/2026
01:00:00
Nottingham Bilborough
Timeseries Graph
n/mn/mn/m3 (1 Low)7 (1 Low)
*2
20/06/2026
01:00:00
Nottingham Kenmore Gardens
Timeseries Graph
62 (2 Low)15 (1 Low)1 (1 Low)4 (1 Low)9 (1 Low)
*2
19/06/2026
23:00:00
Nottingham Western Boulevard
Timeseries Graph
n/m24 (1 Low)n/m3 (1 Low)9 (1 Low)
*2
20/06/2026
01:00:00
Tallington
Timeseries Graph
91 (3 Low)n/mn/m5 (1 Low)11 (1 Low)
*2
20/06/2026
01:00:00
Toft Newton
Timeseries Graph
81 (3 Low)7 (1 Low)n/m4 (1 Low)11 (1 Low)
*2
20/06/2026
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/m13 (1 Low)n/m5 (1 Low)13 (1 Low)
*2
20/06/2026
01:00:00
Cambridge King's Hedges
Timeseries Graph
n/mn/mn/m6 (1 Low)12 (1 Low)
*2
20/06/2026
01:00:00
Cambridge Roadside
Timeseries Graph
n/m34 (1 Low)n/mn/mn/m 19/06/2026
15:00:00
Luton A505 Roadside
Timeseries Graph
n/m27 (1 Low)n/m5 (1 Low)n/m 20/06/2026
01:00:00
Norwich Lakenfields
Timeseries Graph
123 (5 Moderate)11 (1 Low)n/m8 (1 Low)14 (1 Low)
*2
20/06/2026
01:00:00
Peterborough Garton End
Timeseries Graph
n/mn/mn/m5 (1 Low)10 (1 Low)
*2
20/06/2026
01:00:00
Sibton
Timeseries Graph
115 (4 Moderate)n/mn/m9 (1 Low)16 (1 Low)
*2
20/06/2026
01:00:00
Southend Shoeburyness
Timeseries Graph
n/mn/mn/m9 (1 Low)15 (1 Low)
*2
20/06/2026
01:00:00
Southend-on-Sea
Timeseries Graph
96 (3 Low)24 (1 Low)n/m8 (1 Low)15 (1 Low)
*2
20/06/2026
01:00:00
St Osyth
Timeseries Graph
111 (4 Moderate)25 (1 Low)n/m11 (1 Low)20 (2 Low)
*2
20/06/2026
01:00:00
Stanford-le-Hope Roadside
Timeseries Graph
n/m34 (1 Low)n/m10 (1 Low)14 (1 Low)
*1
20/06/2026
01:00:00
Stevenage St Georges Way South
Timeseries Graph
n/mn/mn/m5 (1 Low)n/m 20/06/2026
01:00:00
Thurrock
Timeseries Graph
91 (3 Low)39 (1 Low)2 (1 Low)6 (1 Low)13 (1 Low)
*2
19/06/2026
08:15:00
Weybourne
Timeseries Graph
105 (4 Moderate)n/mn/m7 (1 Low)14 (1 Low)
*2
20/06/2026
01:00:00
Wicken Fen
Timeseries Graph
107 (4 Moderate)5 (1 Low)2 (1 Low)6 (1 Low)13 (1 Low)
*2
20/06/2026
03:45:00

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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/m35 (1 Low)n/m11 (1 Low)19 (2 Low)
*1
20/06/2026
01:00:00
Ealing Horn Lane
Timeseries Graph
n/mn/mn/mn/m47 (3 Low)
*1
20/06/2026
01:00:00
Haringey Roadside
Timeseries Graph
n/m34 (1 Low)n/mn/mn/m 19/06/2026
11:00:00
London A406 N Circular
Timeseries Graph
n/mn/mn/m7 (1 Low)n/m 20/06/2026
01:00:00
London Bexley
Timeseries Graph
n/m17 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
20/06/2026
01:00:00
London Bloomsbury
Timeseries Graph
90 (3 Low)25 (1 Low)2 (1 Low)5 (1 Low)11 (1 Low)
*2
19/06/2026
10:15:00
London Farringdon Street
Timeseries Graph
n/m43 (1 Low)n/m7 (1 Low)n/m 20/06/2026
01:00:00
London Haringey Priory Park South
Timeseries Graph
97 (3 Low)24 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
20/06/2026
01:00:00
London Harlington
Timeseries Graph
94 (3 Low)31 (1 Low)n/m4 (1 Low)12 (1 Low)
*2
20/06/2026
01:00:00
London Hillingdon
Timeseries Graph
82 (3 Low)34 (1 Low)n/m7 (1 Low)27 (2 Low)
*2
20/06/2026
01:00:00
London Honor Oak Park
Timeseries Graph
106 (4 Moderate)n/mn/m5 (1 Low)9 (1 Low)
*2
20/06/2026
01:00:00
London Marylebone Road
Timeseries Graph
65 (2 Low)60 (1 Low)5 (1 Low)8 (1 Low)18 (2 Low)
*1
19/06/2026
10:00:00
London N. Kensington
Timeseries Graph
99 (3 Low)21 (1 Low)2 (1 Low)5 (1 Low)10 (1 Low)
*2
19/06/2026
09:30:00
London Norbury Manor School
Timeseries Graph
n/mn/mn/m5 (1 Low)10 (1 Low)
*2
20/06/2026
01:00:00
London Teddington Bushy Park
Timeseries Graph
n/mn/mn/m4 (1 Low)11 (1 Low)
*2
20/06/2026
01:00:00
London Westminster
Timeseries Graph
91 (3 Low)18 (1 Low)n/mn/mn/m 19/06/2026
19:00:00
Southwark A2 Old Kent Road
Timeseries Graph
n/m19 (1 Low)n/mn/m12 (1 Low)
*1
19/06/2026
09:00:00

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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
47 (2 Low)12 (1 Low)n/mn/mn/m 19/06/2026
22:00:00
Inverness
Timeseries Graph
n/m14 (1 Low)n/m1 (1 Low)3 (1 Low)
*2
20/06/2026
03:00:00
Lerwick
Timeseries Graph
67 (3 Low)n/mn/mn/mn/m 19/06/2026
24:00:
Strathvaich
Timeseries Graph
66 (2 Low)n/mn/mn/mn/m 19/06/2026
22:00:00

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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/m2 (1 Low)5 (1 Low)
*2
20/06/2026
01:00:00
Hartlepool St Abbs Walk
Timeseries Graph
44 (2 Low)15 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
20/06/2026
01:00:00
Kielder Water
Timeseries Graph
52 (2 Low)n/mn/m1 (1 Low)3 (1 Low)
*2
20/06/2026
01:00:00
Middlesbrough
Timeseries Graph
43 (2 Low)6 (1 Low)2 (1 Low)1 (1 Low)6 (1 Low)
*1
19/06/2026
08:15:00
Newcastle Centre
Timeseries Graph
59 (2 Low)11 (1 Low)n/m6 (1 Low)9 (1 Low)
*1
20/06/2026
01:00:00
Newcastle Cradlewell Roadside
Timeseries Graph
n/m24 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
20/06/2026
01:00:00
North Shields Chirton
Timeseries Graph
n/mn/mn/m2 (1 Low)5 (1 Low)
*2
20/06/2026
01:00:00
Redcar Milford Walk
Timeseries Graph
n/mn/mn/m2 (1 Low)6 (1 Low)
*2
20/06/2026
01:00:00
Stockton-on-Tees A1305 Roadside
Timeseries Graph
n/m10 (1 Low)n/m2 (1 Low)n/m 20/06/2026
01:00:00
Stockton-on-Tees Eaglescliffe
Timeseries Graph
n/m5 (1 Low)n/m4 (1 Low)5 (1 Low)
*1
20/06/2026
01:00:00
Sunderland Silksworth
Timeseries Graph
58 (2 Low)6 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
20/06/2026
01:00:00
Sunderland Wessington Way
Timeseries Graph
n/m9 (1 Low)n/m2 (1 Low)n/m 20/06/2026
01:00:00

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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
30 (1 Low)21 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
20/06/2026
02:00:00
Aberdeen Wellington Road
Timeseries Graph
n/m33 (1 Low)n/mn/mn/m 20/06/2026
02:00:00
Dundee Mains Loan
Timeseries Graph
n/m12 (1 Low)n/mn/mn/m 18/06/2026
23:00:00
Perth Glasgow Road
Timeseries Graph
n/m20 (1 Low)n/mn/mn/m 19/06/2026
18:00:00

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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
47 (2 Low)2 (1 Low)n/mn/mn/m 20/06/2026
01:00:00
Wrexham
Timeseries Graph
n/m15 (1 Low)2 (1 Low)1 (1 Low)4 (1 Low)
*2
19/06/2026
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/m6 (1 Low)n/m1 (1 Low)n/m 20/06/2026
01:00:00
Blackburn Accrington Road
Timeseries Graph
n/m21 (1 Low)n/mn/mn/m 19/06/2026
15:00:00
Blackburn Audley Park
Timeseries Graph
45 (2 Low)n/mn/m2 (1 Low)5 (1 Low)
*2
20/06/2026
08:00:00
Blackpool Marton
Timeseries Graph
57 (2 Low)12 (1 Low)n/m2 (1 Low)6 (1 Low)
*2
20/06/2026
08:00:00
Blackpool Whitegate Drive
Timeseries Graph
n/mn/mn/m3 (1 Low)n/m 20/06/2026
08:00:00
Bury Whitefield Roadside
Timeseries Graph
n/m15 (1 Low)n/mn/m8 (1 Low)
*1
19/06/2026
20:00:00
Carlisle Morton A595
Timeseries Graph
n/m8 (1 Low)n/m3 (1 Low)3 (1 Low)
*1
20/06/2026
07:00:00
Crewe Coppenhall
Timeseries Graph
43 (2 Low)5 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
20/06/2026
02:00:00
Glazebury
Timeseries Graph
47 (2 Low)8 (1 Low)n/m1 (1 Low)5 (1 Low)
*2
20/06/2026
01:00:00
Liverpool Speke
Timeseries Graph
50 (2 Low)11 (1 Low)10 (1 Low)3 (1 Low)7 (1 Low)
*1
19/06/2026
09:15:00
Liverpool Thirlmere Park
Timeseries Graph
53 (2 Low)n/mn/m1 (1 Low)4 (1 Low)
*2
20/06/2026
02:00:00
Manchester Piccadilly
Timeseries Graph
33 (1 Low)20 (1 Low)1 (1 Low)4 (1 Low)8 (1 Low)
*2
19/06/2026
12:45:00
Manchester Sharston
Timeseries Graph
41 (2 Low)12 (1 Low)n/m2 (1 Low)6 (1 Low)
*2
20/06/2026
01:00:00
Middlewich St Michael's Way
Timeseries Graph
n/mn/mn/m2 (1 Low)n/m 20/06/2026
01:00:00
Preston
Timeseries Graph
51 (2 Low)14 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
20/06/2026
08:00:00
Salford Eccles
Timeseries Graph
55 (2 Low)8 (1 Low)n/m2 (1 Low)7 (1 Low)
*2
20/06/2026
01:00:00
Shaw Crompton Way
Timeseries Graph
n/m19 (1 Low)n/mn/mn/m 19/06/2026
17:00:00
St Helens Linkway
Timeseries Graph
n/m21 (1 Low)n/mn/m7 (1 Low)
*1
19/06/2026
18:00:00
Tameside A635 Manchester Road
Timeseries Graph
n/mn/mn/m2 (1 Low)n/m 20/06/2026
01:00:00
Warrington
Timeseries Graph
n/m33 (1 Low)n/m1 (1 Low)7 (1 Low)
*1
20/06/2026
04:00:00
Widnes Milton Road
Timeseries Graph
n/m37 (1 Low)n/mn/mn/m 19/06/2026
18:00:00
Wigan Centre
Timeseries Graph
44 (2 Low)15 (1 Low)n/m2 (1 Low)6 (1 Low)
*2
20/06/2026
01:00:00
Wirral Tranmere
Timeseries Graph
60 (2 Low)5 (1 Low)n/m1 (1 Low)3 (1 Low)
*2
20/06/2026
01:00:00

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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/m49 (1 Low)n/mn/m9 (1 Low)
*1
19/06/2026
11:00:00
Ballymena Antrim Road
Timeseries Graph
n/m29 (1 Low)n/mn/mn/m 19/06/2026
14:00:00
Ballymena Ballykeel
Timeseries Graph
n/m13 (1 Low)5 (1 Low)n/mn/m 19/06/2026
14:45:00
Belfast Centre
Timeseries Graph
36 (2 Low)46 (1 Low)2 (1 Low)2 (1 Low)5 (1 Low)
*2
20/06/2026
02:45:00
Belfast Stockman's Lane
Timeseries Graph
n/m64 (1 Low)n/mn/m10 (1 Low)
*1
19/06/2026
15:00:00
Derry Rosemount
Timeseries Graph
50 (2 Low)7 (1 Low)3 (1 Low)2 (1 Low)5 (1 Low)
*1
20/06/2026
02:30:00
Lough Navar
Timeseries Graph
48 (2 Low)n/mn/m2 (1 Low)3 (1 Low)
*2
20/06/2026
08:00:00

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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/m13 (1 Low)n/mn/mn/m 19/06/2026
20:00:00
Eskdalemuir
Timeseries Graph
49 (2 Low)2 (1 Low)n/mn/mn/m 19/06/2026
24:00:
Peebles
Timeseries Graph
50 (2 Low)2 (1 Low)n/mn/mn/m 19/06/2026
23:00:00

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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/m4 (1 Low)n/m 20/06/2026
01:00:00
Brighton Preston Park
Timeseries Graph
52 (2 Low)22 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
20/06/2026
01:00:00
Chatham Roadside
Timeseries Graph
n/m67 (1 Low)n/m5 (1 Low)18 (2 Low)
*1
20/06/2026
01:00:00
Chilbolton Observatory
Timeseries Graph
69 (3 Low)4 (1 Low)1 (1 Low)3 (1 Low)7 (1 Low)
*2
19/06/2026
08:15:00
Eastbourne
Timeseries Graph
77 (3 Low)20 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
20/06/2026
01:00:00
Farnborough Cherrywood
Timeseries Graph
n/mn/mn/m4 (1 Low)8 (1 Low)
*2
20/06/2026
01:00:00
Horley
Timeseries Graph
n/m32 (1 Low)n/m9 (1 Low)15 (1 Low)
*2
20/06/2026
01:00:00
Lullington Heath
Timeseries Graph
79 (3 Low)9 (1 Low)2 (1 Low)4 (1 Low)8 (1 Low)
*2
19/06/2026
16:00:00
Maidstone Upper Stone Street
Timeseries Graph
n/mn/mn/m10 (1 Low)20 (2 Low)
*2
20/06/2026
01:00:00
Milton Keynes Civic Centre
Timeseries Graph
71 (3 Low)n/mn/m4 (1 Low)9 (1 Low)
*2
20/06/2026
01:00:00
Oxford Centre Roadside
Timeseries Graph
n/m12 (1 Low)n/mn/mn/m 20/06/2026
01:00:00
Oxford St Ebbes
Timeseries Graph
57 (2 Low)11 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
20/06/2026
01:00:00
Portsmouth
Timeseries Graph
50 (2 Low)15 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
20/06/2026
01:00:00
Portsmouth Anglesea Road
Timeseries Graph
n/m23 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
20/06/2026
01:00:00
Reading London Road
Timeseries Graph
n/m17 (1 Low)n/mn/m11 (1 Low)
*1
19/06/2026
09:00:00
Reading New Town
Timeseries Graph
66 (2 Low)16 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
20/06/2026
01:00:00
Reading Rose Kiln Lane
Timeseries Graph
n/mn/mn/m4 (1 Low)n/m 20/06/2026
01:00:00
Rochester Stoke
Timeseries Graph
88 (3 Low)26 (1 Low)2 (1 Low)11 (1 Low)24 (2 Low)
*2
19/06/2026
02:45:00
Slough Windmill Bath Road
Timeseries Graph
n/mn/mn/m5 (1 Low)12 (1 Low)
*2
20/06/2026
01:00:00
Southampton A33
Timeseries Graph
n/m24 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
20/06/2026
01:00:00
Southampton Centre
Timeseries Graph
50 (2 Low)22 (1 Low)2 (1 Low)3 (1 Low)7 (1 Low)
*2
19/06/2026
08:30:00
Storrington Roadside
Timeseries Graph
n/m22 (1 Low)n/m4 (1 Low)9 (1 Low)
*2
20/06/2026
01:00:00
Worthing A27 Roadside
Timeseries Graph
n/m22 (1 Low)n/m8 (1 Low)n/m 20/06/2026
01:00:00
Worthing East Ten Acres
Timeseries Graph
n/mn/mn/m5 (1 Low)9 (1 Low)
*2
20/06/2026
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
40 (2 Low)19 (1 Low)2 (1 Low)4 (1 Low)6 (1 Low)
*1
20/06/2026
02:30:00
Cardiff Newport Road
Timeseries Graph
n/m15 (1 Low)n/mn/m8 (1 Low)
*1
19/06/2026
14:00:00
Chepstow A48
Timeseries Graph
n/m22 (1 Low)n/m0 (1 Low)5 (1 Low)
*1
20/06/2026
02:00:00
Cwmbran Crownbridge
Timeseries Graph
48 (2 Low)7 (1 Low)n/mn/mn/m 19/06/2026
17:00:00
Hafod-yr-ynys Hill Roadside
Timeseries Graph
n/m32 (1 Low)n/mn/mn/m 19/06/2026
16:00:00
Narberth
Timeseries Graph
46 (2 Low)4 (1 Low)2 (1 Low)3 (1 Low)8 (1 Low)
*2
19/06/2026
15:00:00
Newport
Timeseries Graph
n/m9 (1 Low)n/m3 (1 Low)8 (1 Low)
*2
20/06/2026
02:00:00
Port Talbot Margam
Timeseries Graph
42 (2 Low)12 (1 Low)1 (1 Low)6 (1 Low)12 (1 Low)
*3
19/06/2026
08:15:00
Swansea Roadside
Timeseries Graph
n/m20 (1 Low)n/m7 (1 Low)8 (1 Low)
*1
20/06/2026
05:00:00

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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/m2 (1 Low)7 (1 Low)
*2
20/06/2026
08:00:00
Bath A4 Roadside
Timeseries Graph
n/m19 (1 Low)n/mn/mn/m 19/06/2026
09:00:00
Bournemouth
Timeseries Graph
51 (2 Low)8 (1 Low)n/m5 (1 Low)n/m 20/06/2026
01:00:00
Bridgwater A372 Westonzoyland
Timeseries Graph
n/mn/mn/m3 (1 Low)n/m 20/06/2026
01:00:00
Bristol Patchway
Timeseries Graph
n/mn/mn/m2 (1 Low)5 (1 Low)
*2
20/06/2026
01:00:00
Bristol St Paul's
Timeseries Graph
46 (2 Low)9 (1 Low)n/m4 (1 Low)10 (1 Low)
*1
20/06/2026
03:00:00
Bristol Temple Way
Timeseries Graph
n/m25 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
20/06/2026
01:00:00
Charlton Mackrell
Timeseries Graph
48 (2 Low)4 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
20/06/2026
02:00:00
Cheltenham A40 Gloucester Road
Timeseries Graph
n/mn/mn/m4 (1 Low)n/m 20/06/2026
06:00:00
Christchurch Barrack Road
Timeseries Graph
n/m13 (1 Low)n/m1 (1 Low)n/m 20/06/2026
01:00:00
Exeter Roadside
Timeseries Graph
44 (2 Low)16 (1 Low)n/mn/mn/m 19/06/2026
22:00:00
Gloucester Tredworth
Timeseries Graph
n/mn/mn/m3 (1 Low)6 (1 Low)
*2
20/06/2026
01:00:00
Honiton
Timeseries Graph
45 (2 Low)4 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
20/06/2026
08:00:00
Plymouth Centre
Timeseries Graph
38 (2 Low)29 (1 Low)n/m6 (1 Low)14 (1 Low)
*2
20/06/2026
08:00:00
Plymouth Tavistock Road
Timeseries Graph
n/m17 (1 Low)n/mn/mn/m 19/06/2026
12:00:00
Saltash Callington Road
Timeseries Graph
n/mn/mn/m1 (1 Low)5 (1 Low)
*1
20/06/2026
08:00:00
Swindon Walcot
Timeseries Graph
57 (2 Low)5 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
20/06/2026
01:00:00
Yarner Wood
Timeseries Graph
46 (2 Low)4 (1 Low)n/m1 (1 Low)2 (1 Low)
*2
20/06/2026
01:00:00

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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
66 (2 Low)n/mn/mn/mn/m 19/06/2026
12:00:00

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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/m3 (1 Low)6 (1 Low)
*2
20/06/2026
01:00:00
Birmingham A4540 Roadside
Timeseries Graph
39 (2 Low)20 (1 Low)n/m4 (1 Low)14 (1 Low)
*2
20/06/2026
01:00:00
Birmingham Hall Green
Timeseries Graph
59 (2 Low)4 (1 Low)n/m2 (1 Low)6 (1 Low)
*2
20/06/2026
01:00:00
Birmingham Ladywood
Timeseries Graph
56 (2 Low)5 (1 Low)2 (1 Low)2 (1 Low)4 (1 Low)
*2
19/06/2026
12:45:00
Birmingham University
Timeseries Graph
n/mn/mn/m2 (1 Low)5 (1 Low)
*2
20/06/2026
01:00:00
Burton-on-Trent Horninglow
Timeseries Graph
55 (2 Low)12 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
20/06/2026
01:00:00
Cannock A5190 Roadside
Timeseries Graph
n/m9 (1 Low)n/m2 (1 Low)n/m 20/06/2026
01:00:00
Coventry Allesley
Timeseries Graph
54 (2 Low)7 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
20/06/2026
01:00:00
Coventry Binley Road
Timeseries Graph
n/m17 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
20/06/2026
01:00:00
Leamington Spa
Timeseries Graph
62 (2 Low)12 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
20/06/2026
01:00:00
Leamington Spa Rugby Road
Timeseries Graph
n/m8 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
20/06/2026
01:00:00
Leominster
Timeseries Graph
43 (2 Low)4 (1 Low)n/mn/mn/m 19/06/2026
20:00:00
Oldbury Birmingham Road
Timeseries Graph
n/m17 (1 Low)n/m3 (1 Low)8 (1 Low)
*2
20/06/2026
01:00:00
Shrewsbury Underdale
Timeseries Graph
n/mn/mn/m1 (1 Low)4 (1 Low)
*2
20/06/2026
01:00:00
Stoke-on-Trent A50 Roadside
Timeseries Graph
n/m33 (1 Low)n/m2 (1 Low)6 (1 Low)
*2
20/06/2026
01:00:00
Stoke-on-Trent Centre
Timeseries Graph
39 (2 Low)16 (1 Low)n/m2 (1 Low)6 (1 Low)
*2
20/06/2026
01:00:00
Telford Hollinswood
Timeseries Graph
56 (2 Low)6 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
20/06/2026
01:00:00
Walsall Caldmore
Timeseries Graph
n/mn/mn/m2 (1 Low)5 (1 Low)
*2
20/06/2026
01:00:00
Walsall Woodlands
Timeseries Graph
52 (2 Low)6 (1 Low)n/mn/mn/m 19/06/2026
19:00:00
West Bromwich Kenrick Park
Timeseries Graph
44 (2 Low)n/an/mn/mn/m 19/06/2026
19:00:00
Worcester Tolladine
Timeseries Graph
n/mn/mn/m3 (1 Low)5 (1 Low)
*2
20/06/2026
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
47 (2 Low)6 (1 Low)2 (1 Low)2 (1 Low)7 (1 Low)
*2
19/06/2026
18:15:00
Bradford Mayo Avenue
Timeseries Graph
n/m18 (1 Low)n/mn/mn/m 19/06/2026
19:00:00
Bradford Shipley Airedale Road
Timeseries Graph
n/mn/mn/m3 (1 Low)8 (1 Low)
*2
20/06/2026
01:00:00
Dewsbury Ashworth Grange
Timeseries Graph
44 (2 Low)6 (1 Low)n/m2 (1 Low)7 (1 Low)
*2
20/06/2026
01:00:00
Doncaster A630 Cleveland Street
Timeseries Graph
n/m18 (1 Low)n/m4 (1 Low)n/m 20/06/2026
01:00:00
Harrogate Woodlands
Timeseries Graph
n/mn/mn/m2 (1 Low)4 (1 Low)
*2
20/06/2026
01:00:00
High Muffles
Timeseries Graph
56 (2 Low)6 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
20/06/2026
01:00:00
Hull Freetown
Timeseries Graph
65 (2 Low)20 (1 Low)1 (1 Low)4 (1 Low)11 (1 Low)
*2
19/06/2026
08:15:00
Hull Holderness Road
Timeseries Graph
n/m40 (1 Low)n/m4 (1 Low)11 (1 Low)
*2
20/06/2026
01:00:00
Immingham Woodlands Avenue
Timeseries Graph
81 (3 Low)7 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
20/06/2026
01:00:00
Leeds Centre
Timeseries Graph
42 (2 Low)14 (1 Low)3 (1 Low)2 (1 Low)7 (1 Low)
*2
20/06/2026
05:45:00
Leeds Headingley Kerbside
Timeseries Graph
n/m14 (1 Low)n/m6 (1 Low)7 (1 Low)
*1
20/06/2026
03:00:00
Rotherham East Dene
Timeseries Graph
n/mn/mn/m4 (1 Low)7 (1 Low)
*2
20/06/2026
01:00:00
Scunthorpe Town
Timeseries Graph
n/m5 (1 Low)2 (1 Low)4 (1 Low)9 (1 Low)
*1
19/06/2026
13:45:00
Sheffield Barnsley Road
Timeseries Graph
n/m21 (1 Low)n/m5 (1 Low)n/m 20/06/2026
01:00:00
Sheffield Devonshire Green
Timeseries Graph
n/an/an/mn/an/a 03/06/2026
08:00:00
Sheffield Tinsley
Timeseries Graph
39 (2 Low)10 (1 Low)n/m3 (1 Low)9 (1 Low)
*2
20/06/2026
01:00:00
Wakefield Alverthorpe
Timeseries Graph
n/mn/mn/m3 (1 Low)7 (1 Low)
*2
20/06/2026
01:00:00
York Bootham
Timeseries Graph
46 (2 Low)11 (1 Low)n/m4 (1 Low)8 (1 Low)
*1
20/06/2026
01:00:00
York Fishergate
Timeseries Graph
n/m18 (1 Low)n/m2 (1 Low)10 (1 Low)
*1
20/06/2026
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