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 7am Mon 22nd 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
64 (2 Low)n/mn/m2 (1 Low)3 (1 Low)
*2
22/06/2026
07:00:00
Bush Estate
Timeseries Graph
72 (3 Low)6 (1 Low)n/mn/mn/m 21/06/2026
20:00:00
Dumbarton Roadside
Timeseries Graph
n/m14 (1 Low)n/mn/mn/m 21/06/2026
21:00:00
Edinburgh Nicolson Street
Timeseries Graph
n/m20 (1 Low)n/mn/mn/m 21/06/2026
24:00:
Edinburgh St Leonards
Timeseries Graph
73 (3 Low)9 (1 Low)n/a3 (1 Low)5 (1 Low)
*2
19/06/2026
04:00:00
Glasgow Great Western Road
Timeseries Graph
n/m11 (1 Low)n/mn/mn/m 21/06/2026
24:00:
Glasgow High Street
Timeseries Graph
n/m22 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
22/06/2026
05:00:00
Glasgow Kerbside
Timeseries Graph
n/m84 (2 Low)n/mn/mn/m 21/06/2026
22:00:00
Glasgow Townhead
Timeseries Graph
73 (3 Low)14 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
07:00:00
Grangemouth
Timeseries Graph
n/m13 (1 Low)2 (1 Low)4 (1 Low)7 (1 Low)
*1
21/06/2026
10:15:00
Grangemouth Moray
Timeseries Graph
n/m20 (1 Low)n/mn/mn/m 22/06/2026
05:00:00
Greenock A8 Roadside
Timeseries Graph
n/m23 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
22/06/2026
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
36 (2 Low)10 (1 Low)n/m2 (1 Low)5 (1 Low)
*2
22/06/2026
07:00:00
Chesterfield Roadside
Timeseries Graph
n/m19 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
07:00:00
Derby St Alkmund's Way
Timeseries Graph
n/m21 (1 Low)n/m3 (1 Low)n/m 22/06/2026
01:00:00
Derby Stockbrook Park
Timeseries Graph
73 (3 Low)n/mn/m3 (1 Low)5 (1 Low)
*2
22/06/2026
01:00:00
Ladybower
Timeseries Graph
88 (3 Low)3 (1 Low)1 (1 Low)2 (1 Low)4 (1 Low)
*2
21/06/2026
11:30:00
Leicester A594 Roadside
Timeseries Graph
n/m14 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
22/06/2026
07:00:00
Leicester University
Timeseries Graph
74 (3 Low)12 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
07:00:00
Lincoln Canwick Road
Timeseries Graph
n/m29 (1 Low)n/mn/mn/m 21/06/2026
08:00:00
Loughborough Thorpe Acre
Timeseries Graph
n/mn/mn/m3 (1 Low)5 (1 Low)
*2
22/06/2026
02:00:00
Mansfield Ladybrook
Timeseries Graph
n/mn/mn/m3 (1 Low)6 (1 Low)
*2
22/06/2026
01:00:00
Northampton Spring Park
Timeseries Graph
76 (3 Low)5 (1 Low)n/m9 (1 Low)n/m 22/06/2026
06:00:00
Nottingham Bilborough
Timeseries Graph
n/mn/mn/m3 (1 Low)6 (1 Low)
*2
22/06/2026
01:00:00
Nottingham Kenmore Gardens
Timeseries Graph
69 (3 Low)10 (1 Low)2 (1 Low)3 (1 Low)6 (1 Low)
*2
21/06/2026
08:00:00
Nottingham Western Boulevard
Timeseries Graph
n/m16 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
01:00:00
Tallington
Timeseries Graph
80 (3 Low)n/mn/m6 (1 Low)10 (1 Low)
*2
22/06/2026
01:00:00
Toft Newton
Timeseries Graph
74 (3 Low)7 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
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/m10 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
22/06/2026
01:00:00
Cambridge King's Hedges
Timeseries Graph
n/mn/mn/m7 (1 Low)11 (1 Low)
*2
22/06/2026
01:00:00
Cambridge Roadside
Timeseries Graph
n/m11 (1 Low)n/mn/mn/m 22/06/2026
06:00:00
Luton A505 Roadside
Timeseries Graph
n/m40 (1 Low)n/m5 (1 Low)n/m 22/06/2026
03:00:00
Norwich Lakenfields
Timeseries Graph
70 (3 Low)12 (1 Low)n/m8 (1 Low)11 (1 Low)
*2
22/06/2026
01:00:00
Peterborough Garton End
Timeseries Graph
n/mn/mn/m7 (1 Low)11 (1 Low)
*2
22/06/2026
01:00:00
Sibton
Timeseries Graph
71 (3 Low)n/mn/m7 (1 Low)11 (1 Low)
*2
22/06/2026
01:00:00
Southend Shoeburyness
Timeseries Graph
n/mn/mn/m6 (1 Low)10 (1 Low)
*2
22/06/2026
04:00:00
Southend-on-Sea
Timeseries Graph
82 (3 Low)19 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
22/06/2026
05:00:00
St Osyth
Timeseries Graph
89 (3 Low)31 (1 Low)n/m7 (1 Low)12 (1 Low)
*2
22/06/2026
01:00:00
Stanford-le-Hope Roadside
Timeseries Graph
n/m24 (1 Low)n/m9 (1 Low)11 (1 Low)
*1
22/06/2026
01:00:00
Stevenage St Georges Way South
Timeseries Graph
n/mn/mn/m4 (1 Low)n/m 22/06/2026
03:00:00
Thurrock
Timeseries Graph
78 (3 Low)25 (1 Low)1 (1 Low)6 (1 Low)10 (1 Low)
*2
21/06/2026
07:15:00
Weybourne
Timeseries Graph
72 (3 Low)n/mn/m4 (1 Low)6 (1 Low)
*2
22/06/2026
01:00:00
Wicken Fen
Timeseries Graph
73 (3 Low)11 (1 Low)2 (1 Low)7 (1 Low)11 (1 Low)
*2
22/06/2026
01:45:00

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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/m28 (1 Low)n/m10 (1 Low)18 (2 Low)
*1
22/06/2026
01:00:00
Ealing Horn Lane
Timeseries Graph
n/mn/mn/mn/m14 (1 Low)
*1
22/06/2026
01:00:00
Haringey Roadside
Timeseries Graph
n/m24 (1 Low)n/mn/mn/m 21/06/2026
08:00:00
London A406 N Circular
Timeseries Graph
n/mn/mn/m6 (1 Low)n/m 22/06/2026
01:00:00
London Bexley
Timeseries Graph
n/m21 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
22/06/2026
02:00:00
London Bloomsbury
Timeseries Graph
82 (3 Low)31 (1 Low)1 (1 Low)6 (1 Low)9 (1 Low)
*2
21/06/2026
19:45:00
London Farringdon Street
Timeseries Graph
n/m33 (1 Low)n/m7 (1 Low)n/m 22/06/2026
01:00:00
London Haringey Priory Park South
Timeseries Graph
81 (3 Low)16 (1 Low)n/m5 (1 Low)8 (1 Low)
*2
22/06/2026
05:00:00
London Harlington
Timeseries Graph
99 (3 Low)34 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
22/06/2026
01:00:00
London Hillingdon
Timeseries Graph
99 (3 Low)43 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
22/06/2026
01:00:00
London Honor Oak Park
Timeseries Graph
103 (4 Moderate)n/mn/m5 (1 Low)8 (1 Low)
*2
22/06/2026
03:00:00
London Marylebone Road
Timeseries Graph
83 (3 Low)35 (1 Low)3 (1 Low)7 (1 Low)15 (1 Low)
*1
22/06/2026
02:30:00
London N. Kensington
Timeseries Graph
97 (3 Low)19 (1 Low)2 (1 Low)5 (1 Low)8 (1 Low)
*2
21/06/2026
10:45:00
London Norbury Manor School
Timeseries Graph
n/mn/mn/m5 (1 Low)8 (1 Low)
*2
22/06/2026
07:00:00
London Teddington Bushy Park
Timeseries Graph
n/mn/mn/m5 (1 Low)8 (1 Low)
*2
22/06/2026
06:00:00
London Westminster
Timeseries Graph
n/a18 (1 Low)n/mn/mn/m 20/06/2026
23:00:00
Southwark A2 Old Kent Road
Timeseries Graph
n/m24 (1 Low)n/mn/m15 (1 Low)
*1
22/06/2026
07:00:00

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Highland

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Fort William
Timeseries Graph
65 (2 Low)7 (1 Low)n/mn/mn/m 21/06/2026
20:00:00
Inverness
Timeseries Graph
n/m21 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
07:00:00
Lerwick
Timeseries Graph
71 (3 Low)n/mn/mn/mn/m 21/06/2026
15:00:00
Strathvaich
Timeseries Graph
79 (3 Low)n/mn/mn/mn/m 21/06/2026
17:00:00

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North East

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Darlington Firthmoor
Timeseries Graph
n/mn/mn/m5 (1 Low)7 (1 Low)
*2
22/06/2026
07:00:00
Hartlepool St Abbs Walk
Timeseries Graph
63 (2 Low)11 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
01:00:00
Kielder Water
Timeseries Graph
63 (2 Low)n/mn/m2 (1 Low)4 (1 Low)
*2
22/06/2026
07:00:00
Middlesbrough
Timeseries Graph
57 (2 Low)22 (1 Low)2 (1 Low)4 (1 Low)8 (1 Low)
*1
21/06/2026
08:45:00
Newcastle Centre
Timeseries Graph
66 (2 Low)13 (1 Low)n/m6 (1 Low)9 (1 Low)
*1
22/06/2026
07:00:00
Newcastle Cradlewell Roadside
Timeseries Graph
n/m32 (1 Low)n/m3 (1 Low)4 (1 Low)
*2
22/06/2026
07:00:00
North Shields Chirton
Timeseries Graph
n/mn/mn/m2 (1 Low)4 (1 Low)
*2
22/06/2026
07:00:00
Redcar Milford Walk
Timeseries Graph
n/mn/mn/m5 (1 Low)7 (1 Low)
*2
22/06/2026
01:00:00
Stockton-on-Tees A1305 Roadside
Timeseries Graph
n/m35 (1 Low)n/m7 (1 Low)n/m 22/06/2026
07:00:00
Stockton-on-Tees Eaglescliffe
Timeseries Graph
n/m34 (1 Low)n/m7 (1 Low)11 (1 Low)
*1
22/06/2026
04:00:00
Sunderland Silksworth
Timeseries Graph
67 (3 Low)8 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
22/06/2026
07:00:00
Sunderland Wessington Way
Timeseries Graph
n/m17 (1 Low)n/m2 (1 Low)n/m 22/06/2026
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
58 (2 Low)37 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
07:00:00
Aberdeen Wellington Road
Timeseries Graph
n/m22 (1 Low)n/mn/mn/m 21/06/2026
21:00:00
Dundee Mains Loan
Timeseries Graph
n/mn/an/mn/mn/m 18/06/2026
23:00:00
Perth Glasgow Road
Timeseries Graph
n/m8 (1 Low)n/mn/mn/m 21/06/2026
15:00:00

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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
71 (3 Low)7 (1 Low)n/mn/mn/m 21/06/2026
23:00:00
Wrexham
Timeseries Graph
n/m20 (1 Low)6 (1 Low)3 (1 Low)6 (1 Low)
*2
21/06/2026
12:45:00

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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/m25 (1 Low)n/m4 (1 Low)n/m 22/06/2026
01:00:00
Blackburn Accrington Road
Timeseries Graph
n/m14 (1 Low)n/mn/mn/m 22/06/2026
07:00:00
Blackburn Audley Park
Timeseries Graph
83 (3 Low)n/mn/m4 (1 Low)8 (1 Low)
*2
22/06/2026
01:00:00
Blackpool Marton
Timeseries Graph
69 (3 Low)15 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
22/06/2026
01:00:00
Blackpool Whitegate Drive
Timeseries Graph
n/mn/mn/m3 (1 Low)n/m 22/06/2026
01:00:00
Bury Whitefield Roadside
Timeseries Graph
n/m10 (1 Low)n/mn/m9 (1 Low)
*1
22/06/2026
07:00:00
Carlisle Morton A595
Timeseries Graph
n/m9 (1 Low)n/m4 (1 Low)7 (1 Low)
*1
22/06/2026
05:00:00
Crewe Coppenhall
Timeseries Graph
79 (3 Low)9 (1 Low)n/m5 (1 Low)8 (1 Low)
*2
22/06/2026
01:00:00
Glazebury
Timeseries Graph
76 (3 Low)10 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
01:00:00
Liverpool Speke
Timeseries Graph
84 (3 Low)9 (1 Low)2 (1 Low)5 (1 Low)10 (1 Low)
*1
21/06/2026
10:00:00
Liverpool Thirlmere Park
Timeseries Graph
73 (3 Low)n/mn/m3 (1 Low)7 (1 Low)
*2
22/06/2026
01:00:00
Manchester Piccadilly
Timeseries Graph
67 (3 Low)23 (1 Low)1 (1 Low)5 (1 Low)9 (1 Low)
*2
21/06/2026
14:45:00
Manchester Sharston
Timeseries Graph
75 (3 Low)12 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
01:00:00
Middlewich St Michael's Way
Timeseries Graph
n/mn/mn/m4 (1 Low)n/m 22/06/2026
01:00:00
Preston
Timeseries Graph
85 (3 Low)11 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
22/06/2026
01:00:00
Salford Eccles
Timeseries Graph
88 (3 Low)22 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
22/06/2026
01:00:00
Shaw Crompton Way
Timeseries Graph
n/m11 (1 Low)n/mn/mn/m 21/06/2026
16:00:00
St Helens Linkway
Timeseries Graph
n/m33 (1 Low)n/mn/m10 (1 Low)
*1
21/06/2026
14:00:00
Tameside A635 Manchester Road
Timeseries Graph
n/mn/mn/m3 (1 Low)n/m 22/06/2026
01:00:00
Warrington
Timeseries Graph
n/m9 (1 Low)n/m3 (1 Low)6 (1 Low)
*1
22/06/2026
01:00:00
Widnes Milton Road
Timeseries Graph
n/m31 (1 Low)n/mn/mn/m 21/06/2026
13:00:00
Wigan Centre
Timeseries Graph
81 (3 Low)11 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
22/06/2026
01:00:00
Wirral Tranmere
Timeseries Graph
74 (3 Low)23 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
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/m26 (1 Low)n/mn/m11 (1 Low)
*1
22/06/2026
06:00:00
Ballymena Antrim Road
Timeseries Graph
n/m19 (1 Low)n/mn/mn/m 22/06/2026
07:00:00
Ballymena Ballykeel
Timeseries Graph
n/m21 (1 Low)2 (1 Low)n/mn/m 21/06/2026
20:45:00
Belfast Centre
Timeseries Graph
51 (2 Low)49 (1 Low)4 (1 Low)5 (1 Low)10 (1 Low)
*2
21/06/2026
16:00:00
Belfast Stockman's Lane
Timeseries Graph
n/m49 (1 Low)n/mn/m12 (1 Low)
*1
21/06/2026
24:00:
Derry Rosemount
Timeseries Graph
50 (2 Low)18 (1 Low)2 (1 Low)3 (1 Low)10 (1 Low)
*1
21/06/2026
19:00:00
Lough Navar
Timeseries Graph
61 (2 Low)n/mn/m2 (1 Low)5 (1 Low)
*2
22/06/2026
07:00:00

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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 21/06/2026
14:00:00
Eskdalemuir
Timeseries Graph
76 (3 Low)2 (1 Low)n/mn/mn/m 21/06/2026
21:00:00
Peebles
Timeseries Graph
62 (2 Low)2 (1 Low)n/mn/mn/m 21/06/2026
20:00:00

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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 22/06/2026
01:00:00
Brighton Preston Park
Timeseries Graph
72 (3 Low)26 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
22/06/2026
07:00:00
Chatham Roadside
Timeseries Graph
n/m19 (1 Low)n/m3 (1 Low)16 (1 Low)
*1
22/06/2026
01:00:00
Chilbolton Observatory
Timeseries Graph
87 (3 Low)10 (1 Low)1 (1 Low)3 (1 Low)6 (1 Low)
*2
21/06/2026
21:45:00
Eastbourne
Timeseries Graph
76 (3 Low)28 (1 Low)n/m5 (1 Low)8 (1 Low)
*2
22/06/2026
07:00:00
Farnborough Cherrywood
Timeseries Graph
n/mn/mn/m4 (1 Low)6 (1 Low)
*2
22/06/2026
07:00:00
Horley
Timeseries Graph
n/m8 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
22/06/2026
07:00:00
Lullington Heath
Timeseries Graph
79 (3 Low)12 (1 Low)2 (1 Low)4 (1 Low)6 (1 Low)
*2
21/06/2026
09:15:00
Maidstone Upper Stone Street
Timeseries Graph
n/mn/mn/m7 (1 Low)12 (1 Low)
*2
22/06/2026
07:00:00
Milton Keynes Civic Centre
Timeseries Graph
74 (3 Low)n/mn/m5 (1 Low)8 (1 Low)
*2
22/06/2026
05:00:00
Oxford Centre Roadside
Timeseries Graph
n/m20 (1 Low)n/mn/mn/m 22/06/2026
06:00:00
Oxford St Ebbes
Timeseries Graph
81 (3 Low)11 (1 Low)n/m4 (1 Low)6 (1 Low)
*2
22/06/2026
06:00:00
Portsmouth
Timeseries Graph
68 (3 Low)23 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
22/06/2026
03:00:00
Portsmouth Anglesea Road
Timeseries Graph
n/m35 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
22/06/2026
05:00:00
Reading London Road
Timeseries Graph
n/m27 (1 Low)n/mn/m11 (1 Low)
*1
21/06/2026
20:00:00
Reading New Town
Timeseries Graph
93 (3 Low)21 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
07:00:00
Reading Rose Kiln Lane
Timeseries Graph
n/mn/mn/m4 (1 Low)n/m 22/06/2026
07:00:00
Rochester Stoke
Timeseries Graph
78 (3 Low)22 (1 Low)n/a8 (1 Low)12 (1 Low)
*2
19/06/2026
02:45:00
Slough Windmill Bath Road
Timeseries Graph
n/mn/mn/m5 (1 Low)9 (1 Low)
*2
22/06/2026
02:00:00
Southampton A33
Timeseries Graph
n/m71 (2 Low)n/m3 (1 Low)7 (1 Low)
*2
22/06/2026
07:00:00
Southampton Centre
Timeseries Graph
79 (3 Low)42 (1 Low)5 (1 Low)4 (1 Low)7 (1 Low)
*2
21/06/2026
12:15:00
Storrington Roadside
Timeseries Graph
n/m27 (1 Low)n/m5 (1 Low)8 (1 Low)
*2
22/06/2026
07:00:00
Worthing A27 Roadside
Timeseries Graph
n/m34 (1 Low)n/m7 (1 Low)n/m 22/06/2026
01:00:00
Worthing East Ten Acres
Timeseries Graph
n/mn/mn/m5 (1 Low)8 (1 Low)
*2
22/06/2026
07:00:00

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South Wales

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Cardiff Centre
Timeseries Graph
70 (3 Low)24 (1 Low)3 (1 Low)7 (1 Low)9 (1 Low)
*1
21/06/2026
17:15:00
Cardiff Newport Road
Timeseries Graph
n/m32 (1 Low)n/mn/m11 (1 Low)
*1
21/06/2026
22:00:00
Chepstow A48
Timeseries Graph
n/m27 (1 Low)n/m2 (1 Low)7 (1 Low)
*1
22/06/2026
07:00:00
Cwmbran Crownbridge
Timeseries Graph
77 (3 Low)10 (1 Low)n/mn/mn/m 21/06/2026
21:00:00
Hafod-yr-ynys Hill Roadside
Timeseries Graph
n/m45 (1 Low)n/mn/mn/m 21/06/2026
21:00:00
Narberth
Timeseries Graph
63 (2 Low)n/a2 (1 Low)2 (1 Low)5 (1 Low)
*2
21/06/2026
13:30:00
Newport
Timeseries Graph
n/m19 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
07:00:00
Port Talbot Margam
Timeseries Graph
n/an/an/an/an/a 20/06/2026
11:30:00
Swansea Roadside
Timeseries Graph
n/m26 (1 Low)n/m9 (1 Low)11 (1 Low)
*1
22/06/2026
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/m3 (1 Low)8 (1 Low)
*2
22/06/2026
07:00:00
Bath A4 Roadside
Timeseries Graph
n/m33 (1 Low)n/mn/mn/m 22/06/2026
06:00:00
Bournemouth
Timeseries Graph
70 (3 Low)13 (1 Low)n/m6 (1 Low)n/m 22/06/2026
07:00:00
Bridgwater A372 Westonzoyland
Timeseries Graph
n/mn/mn/m5 (1 Low)n/m 22/06/2026
07:00:00
Bristol Patchway
Timeseries Graph
n/mn/mn/m3 (1 Low)6 (1 Low)
*2
22/06/2026
07:00:00
Bristol St Paul's
Timeseries Graph
73 (3 Low)21 (1 Low)n/m7 (1 Low)10 (1 Low)
*1
22/06/2026
01:00:00
Bristol Temple Way
Timeseries Graph
n/m44 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
22/06/2026
07:00:00
Charlton Mackrell
Timeseries Graph
63 (2 Low)11 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
06:00:00
Cheltenham A40 Gloucester Road
Timeseries Graph
n/mn/mn/m1 (1 Low)n/m 22/06/2026
01:00:00
Christchurch Barrack Road
Timeseries Graph
n/m15 (1 Low)n/m3 (1 Low)n/m 22/06/2026
01:00:00
Exeter Roadside
Timeseries Graph
53 (2 Low)28 (1 Low)n/mn/mn/m 21/06/2026
19:00:00
Gloucester Tredworth
Timeseries Graph
n/mn/mn/m4 (1 Low)7 (1 Low)
*2
22/06/2026
07:00:00
Honiton
Timeseries Graph
52 (2 Low)8 (1 Low)n/m2 (1 Low)4 (1 Low)
*2
22/06/2026
07:00:00
Plymouth Centre
Timeseries Graph
52 (2 Low)39 (1 Low)n/m3 (1 Low)8 (1 Low)
*2
22/06/2026
07:00:00
Plymouth Tavistock Road
Timeseries Graph
n/m22 (1 Low)n/mn/mn/m 21/06/2026
23:00:00
Saltash Callington Road
Timeseries Graph
n/mn/mn/m1 (1 Low)6 (1 Low)
*1
22/06/2026
01:00:00
Swindon Walcot
Timeseries Graph
75 (3 Low)11 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
07:00:00
Yarner Wood
Timeseries Graph
49 (2 Low)8 (1 Low)n/m1 (1 Low)3 (1 Low)
*2
22/06/2026
07:00:00

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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
60 (2 Low)n/mn/mn/mn/m 21/06/2026
20:00:00

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West Midlands

24 Hour Summary, based on data provided by Environment Agency
Monitoring site Running 8 Hour mean Ozone
(µgm-3)
Hourly mean
Nitrogen dioxide
(µgm-3)
Max 15 min mean
Sulphur dioxide
(µgm-3)
Running 24 Hour mean
PM2.5
Particles
(µgm-3)
Running 24 Hour mean
PM10
Particles
(µgm-3)
Last
updated
Bedworth Collycroft
Timeseries Graph
n/mn/mn/m4 (1 Low)7 (1 Low)
*2
22/06/2026
07:00:00
Birmingham A4540 Roadside
Timeseries Graph
68 (3 Low)17 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
22/06/2026
07:00:00
Birmingham Hall Green
Timeseries Graph
84 (3 Low)13 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
22/06/2026
07:00:00
Birmingham Ladywood
Timeseries Graph
86 (3 Low)16 (1 Low)2 (1 Low)4 (1 Low)7 (1 Low)
*2
21/06/2026
13:15:00
Birmingham University
Timeseries Graph
n/mn/mn/m4 (1 Low)7 (1 Low)
*2
22/06/2026
07:00:00
Burton-on-Trent Horninglow
Timeseries Graph
80 (3 Low)13 (1 Low)n/m3 (1 Low)5 (1 Low)
*2
22/06/2026
01:00:00
Cannock A5190 Roadside
Timeseries Graph
n/m12 (1 Low)n/m3 (1 Low)n/m 22/06/2026
07:00:00
Coventry Allesley
Timeseries Graph
72 (3 Low)8 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
22/06/2026
07:00:00
Coventry Binley Road
Timeseries Graph
n/m24 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
22/06/2026
07:00:00
Leamington Spa
Timeseries Graph
83 (3 Low)9 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
22/06/2026
07:00:00
Leamington Spa Rugby Road
Timeseries Graph
n/m9 (1 Low)n/m4 (1 Low)6 (1 Low)
*2
22/06/2026
07:00:00
Leominster
Timeseries Graph
77 (3 Low)9 (1 Low)n/mn/mn/m 21/06/2026
21:00:00
Oldbury Birmingham Road
Timeseries Graph
n/m22 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
22/06/2026
07:00:00
Shrewsbury Underdale
Timeseries Graph
n/mn/mn/m4 (1 Low)7 (1 Low)
*2
22/06/2026
07:00:00
Stoke-on-Trent A50 Roadside
Timeseries Graph
n/m42 (1 Low)n/m3 (1 Low)7 (1 Low)
*2
22/06/2026
01:00:00
Stoke-on-Trent Centre
Timeseries Graph
75 (3 Low)8 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
01:00:00
Telford Hollinswood
Timeseries Graph
93 (3 Low)11 (1 Low)n/m4 (1 Low)6 (1 Low)
*2
22/06/2026
02:00:00
Walsall Caldmore
Timeseries Graph
n/mn/mn/m4 (1 Low)8 (1 Low)
*2
22/06/2026
05:00:00
Walsall Woodlands
Timeseries Graph
83 (3 Low)13 (1 Low)n/mn/mn/m 21/06/2026
21:00:00
West Bromwich Kenrick Park
Timeseries Graph
72 (3 Low)n/an/mn/mn/m 21/06/2026
21:00:00
Worcester Tolladine
Timeseries Graph
n/mn/mn/m4 (1 Low)7 (1 Low)
*2
22/06/2026
07:00:00

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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
77 (3 Low)13 (1 Low)1 (1 Low)4 (1 Low)8 (1 Low)
*2
21/06/2026
12:00:00
Bradford Mayo Avenue
Timeseries Graph
n/m39 (1 Low)n/mn/mn/m 21/06/2026
14:00:00
Bradford Shipley Airedale Road
Timeseries Graph
n/mn/mn/m4 (1 Low)9 (1 Low)
*2
22/06/2026
07:00:00
Dewsbury Ashworth Grange
Timeseries Graph
75 (3 Low)15 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
22/06/2026
07:00:00
Doncaster A630 Cleveland Street
Timeseries Graph
n/m15 (1 Low)n/m4 (1 Low)n/m 22/06/2026
01:00:00
Harrogate Woodlands
Timeseries Graph
n/mn/mn/m3 (1 Low)5 (1 Low)
*2
22/06/2026
07:00:00
High Muffles
Timeseries Graph
68 (3 Low)3 (1 Low)n/m3 (1 Low)4 (1 Low)
*2
22/06/2026
02:00:00
Hull Freetown
Timeseries Graph
63 (2 Low)15 (1 Low)1 (1 Low)6 (1 Low)9 (1 Low)
*2
20/06/2026
21:30:00
Hull Holderness Road
Timeseries Graph
n/m11 (1 Low)n/m7 (1 Low)9 (1 Low)
*2
22/06/2026
01:00:00
Immingham Woodlands Avenue
Timeseries Graph
78 (3 Low)38 (1 Low)n/m7 (1 Low)10 (1 Low)
*2
22/06/2026
01:00:00
Leeds Centre
Timeseries Graph
76 (3 Low)11 (1 Low)2 (1 Low)3 (1 Low)6 (1 Low)
*2
22/06/2026
05:00:00
Leeds Headingley Kerbside
Timeseries Graph
n/m19 (1 Low)n/m9 (1 Low)12 (1 Low)
*1
22/06/2026
01:00:00
Rotherham East Dene
Timeseries Graph
n/mn/mn/m5 (1 Low)8 (1 Low)
*2
22/06/2026
03:00:00
Scunthorpe Town
Timeseries Graph
n/m11 (1 Low)3 (1 Low)6 (1 Low)12 (1 Low)
*1
21/06/2026
17:15:00
Sheffield Barnsley Road
Timeseries Graph
n/m28 (1 Low)n/m6 (1 Low)n/m 22/06/2026
01:00:00
Sheffield Devonshire Green
Timeseries Graph
n/an/an/mn/an/a 03/06/2026
08:00:00
Sheffield Tinsley
Timeseries Graph
64 (2 Low)9 (1 Low)n/m3 (1 Low)6 (1 Low)
*2
22/06/2026
01:00:00
Wakefield Alverthorpe
Timeseries Graph
n/mn/mn/m5 (1 Low)9 (1 Low)
*2
22/06/2026
01:00:00
York Bootham
Timeseries Graph
68 (3 Low)4 (1 Low)n/m5 (1 Low)10 (1 Low)
*1
22/06/2026
01:00:00
York Fishergate
Timeseries Graph
n/m16 (1 Low)n/m2 (1 Low)11 (1 Low)
*1
22/06/2026
07:00:00

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