Latest measured levels based on data provided by the 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
  • Pollutant levels recorded for the hour up to 6am Sat 28th Mar 2026

Filter by region:

Central Scotland

Latest measured levels based on data provided by the 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
72 (3 Low)n/mn/m5 (1 Low)8 (1 Low)
*2
28/03/2026
06:00
Bush Estate
Timeseries Graph
88 (3 Low)1 (1 Low)n/mn/mn/m 28/03/2026
06:00
Dumbarton Roadside
Timeseries Graph
n/m3 (1 Low)n/mn/mn/m 28/03/2026
06:00
Edinburgh Nicolson Street
Timeseries Graph
n/mn/an/mn/mn/m 27/03/2026
23:00
Edinburgh St Leonards
Timeseries Graph
84 (3 Low)4 (1 Low)1 (1 Low)7 (1 Low)14 (1 Low)
*2
28/03/2026
06:00
Glasgow Great Western Road
Timeseries Graph
n/m6 (1 Low)n/mn/mn/m 28/03/2026
06:00
Glasgow High Street
Timeseries Graph
n/m18 (1 Low)n/m8 (1 Low)18 (2 Low)
*2
28/03/2026
06:00
Glasgow Kerbside
Timeseries Graph
n/m24 (1 Low)n/mn/mn/m 28/03/2026
06:00
Glasgow Townhead
Timeseries Graph
88 (3 Low)4 (1 Low)n/m7 (1 Low)14 (1 Low)
*2
28/03/2026
06:00
Grangemouth
Timeseries Graph
n/m1 (1 Low)1 (1 Low)7 (1 Low)17 (2 Low)
*1
28/03/2026
06:00
Grangemouth Moray
Timeseries Graph
n/m0 (1 Low)n/mn/mn/m 28/03/2026
05:00
Greenock A8 Roadside
Timeseries Graph
n/m0 (1 Low)n/m8 (1 Low)16 (1 Low)
*2
28/03/2026
06:00

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East Midlands

Latest measured levels based on data provided by the 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
76 (3 Low)3 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
Chesterfield Roadside
Timeseries Graph
n/m4 (1 Low)n/m7 (1 Low)13 (1 Low)
*2
28/03/2026
06:00
Derby St Alkmund's Way
Timeseries Graph
n/m3 (1 Low)n/m7 (1 Low)n/m 28/03/2026
06:00
Derby Stockbrook Park
Timeseries Graph
66 (2 Low)n/mn/m5 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Ladybower
Timeseries Graph
89 (3 Low)1 (1 Low)1 (1 Low)5 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Leicester A594 Roadside
Timeseries Graph
n/m25 (1 Low)n/m8 (1 Low)16 (1 Low)
*2
28/03/2026
06:00
Leicester University
Timeseries Graph
59 (2 Low)16 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Lincoln Canwick Road
Timeseries Graph
n/m20 (1 Low)n/mn/mn/m 28/03/2026
06:00
Loughborough Thorpe Acre
Timeseries Graph
n/mn/mn/m6 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Mansfield Ladybrook
Timeseries Graph
n/mn/mn/m6 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
Northampton Spring Park
Timeseries Graph
67 (3 Low)3 (1 Low)n/m10 (1 Low)n/m 28/03/2026
06:00
Nottingham Bilborough
Timeseries Graph
n/mn/mn/m5 (1 Low)9 (1 Low)
*2
28/03/2026
06:00
Nottingham Kenmore Gardens
Timeseries Graph
64 (2 Low)6 (1 Low)1 (1 Low)7 (1 Low)12 (1 Low)
*2
28/03/2026
06:00
Nottingham Western Boulevard
Timeseries Graph
n/m5 (1 Low)n/m6 (1 Low)13 (1 Low)
*2
28/03/2026
06:00
Tallington
Timeseries Graph
71 (3 Low)n/mn/m6 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Toft Newton
Timeseries Graph
77 (3 Low)2 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
28/03/2026
06:00

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Eastern

Latest measured levels based on data provided by the 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/m4 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
Cambridge King's Hedges
Timeseries Graph
n/mn/mn/m7 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
Cambridge Roadside
Timeseries Graph
n/m10 (1 Low)n/mn/mn/m 28/03/2026
06:00
Luton A505 Roadside
Timeseries Graph
n/m11 (1 Low)n/m5 (1 Low)n/m 28/03/2026
06:00
Norwich Lakenfields
Timeseries Graph
57 (2 Low)5 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Peterborough Garton End
Timeseries Graph
n/mn/mn/m6 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
Sibton
Timeseries Graph
56 (2 Low)n/mn/m6 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Southend Shoeburyness
Timeseries Graph
n/mn/mn/m6 (1 Low)9 (1 Low)
*2
28/03/2026
06:00
Southend-on-Sea
Timeseries Graph
57 (2 Low)2 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
St Osyth
Timeseries Graph
67 (3 Low)2 (1 Low)n/m6 (1 Low)9 (1 Low)
*2
28/03/2026
06:00
Stanford-le-Hope Roadside
Timeseries Graph
n/m16 (1 Low)n/m10 (1 Low)13 (1 Low)
*1
28/03/2026
06:00
Thurrock
Timeseries Graph
59 (2 Low)10 (1 Low)1 (1 Low)6 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Weybourne
Timeseries Graph
72 (3 Low)n/mn/m5 (1 Low)8 (1 Low)
*2
28/03/2026
06:00
Wicken Fen
Timeseries Graph
52 (2 Low)3 (1 Low)2 (1 Low)6 (1 Low)9 (1 Low)
*2
28/03/2026
06:00

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Greater London

Latest measured levels based on data provided by the 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/m4 (1 Low)n/m10 (1 Low)19 (2 Low)
*1
28/03/2026
06:00
Ealing Horn Lane
Timeseries Graph
n/mn/mn/mn/m33 (2 Low)
*1
28/03/2026
06:00
Haringey Roadside
Timeseries Graph
n/m7 (1 Low)n/mn/mn/m 28/03/2026
06:00
London A406 N Circular
Timeseries Graph
n/mn/mn/m7 (1 Low)n/m 28/03/2026
06:00
London Bexley
Timeseries Graph
n/m7 (1 Low)n/m6 (1 Low)9 (1 Low)
*2
28/03/2026
06:00
London Bloomsbury
Timeseries Graph
55 (2 Low)35 (1 Low)1 (1 Low)6 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
London Farringdon Street
Timeseries Graph
n/m15 (1 Low)n/m8 (1 Low)n/m 28/03/2026
06:00
London Haringey Priory Park South
Timeseries Graph
67 (3 Low)7 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
London Harlington
Timeseries Graph
58 (2 Low)6 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
28/03/2026
05:00
London Hillingdon
Timeseries Graph
64 (2 Low)11 (1 Low)n/m7 (1 Low)14 (1 Low)
*2
28/03/2026
06:00
London Honor Oak Park
Timeseries Graph
74 (3 Low)n/mn/m6 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
London Marylebone Road
Timeseries Graph
58 (2 Low)21 (1 Low)2 (1 Low)9 (1 Low)15 (1 Low)
*1
28/03/2026
06:00
London N. Kensington
Timeseries Graph
63 (2 Low)8 (1 Low)2 (1 Low)5 (1 Low)9 (1 Low)
*2
28/03/2026
06:00
London Norbury Manor School
Timeseries Graph
n/mn/mn/m6 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
London Teddington Bushy Park
Timeseries Graph
n/mn/mn/m6 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
London Westminster
Timeseries Graph
58 (2 Low)15 (1 Low)n/mn/mn/m 28/03/2026
06:00
Southwark A2 Old Kent Road
Timeseries Graph
n/m9 (1 Low)n/mn/m16 (1 Low)
*1
28/03/2026
06:00

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Highland

Latest measured levels based on data provided by the 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
87 (3 Low)3 (1 Low)n/mn/mn/m 28/03/2026
06:00
Inverness
Timeseries Graph
n/m1 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
28/03/2026
06:00
Lerwick
Timeseries Graph
88 (3 Low)n/mn/mn/mn/m 28/03/2026
06:00
Strathvaich
Timeseries Graph
92 (3 Low)n/mn/mn/mn/m 28/03/2026
06:00

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North East

Latest measured levels based on data provided by the 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
76 (3 Low)1 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Kielder Water
Timeseries Graph
69 (3 Low)n/mn/m5 (1 Low)9 (1 Low)
*2
28/03/2026
06:00
Middlesbrough
Timeseries Graph
70 (3 Low)3 (1 Low)1 (1 Low)4 (1 Low)12 (1 Low)
*1
28/03/2026
06:00
Newcastle Centre
Timeseries Graph
77 (3 Low)0 (1 Low)n/m8 (1 Low)17 (2 Low)
*1
28/03/2026
06:00
Newcastle Cradlewell Roadside
Timeseries Graph
n/m2 (1 Low)n/m6 (1 Low)12 (1 Low)
*2
28/03/2026
06:00
Redcar Milford Walk
Timeseries Graph
n/mn/mn/m5 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Stockton-on-Tees A1305 Roadside
Timeseries Graph
n/m3 (1 Low)n/m4 (1 Low)n/m 28/03/2026
06:00
Stockton-on-Tees Eaglescliffe
Timeseries Graph
n/m1 (1 Low)n/m5 (1 Low)13 (1 Low)
*1
28/03/2026
06:00
Sunderland Silksworth
Timeseries Graph
84 (3 Low)3 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
Sunderland Wessington Way
Timeseries Graph
n/m0 (1 Low)n/m5 (1 Low)n/m 28/03/2026
06:00

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North East Scotland

Latest measured levels based on data provided by the 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
71 (3 Low)12 (1 Low)n/m5 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
Aberdeen Wellington Road
Timeseries Graph
n/m7 (1 Low)n/mn/mn/m 28/03/2026
06:00
Dundee Mains Loan
Timeseries Graph
n/mn/an/mn/mn/m 09/02/2026
05:00
Perth Glasgow Road
Timeseries Graph
n/m3 (1 Low)n/mn/mn/m 28/03/2026
06:00

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North Wales

Latest measured levels based on data provided by the 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
78 (3 Low)1 (1 Low)n/mn/mn/m 28/03/2026
06:00
Wrexham
Timeseries Graph
n/m4 (1 Low)1 (1 Low)6 (1 Low)11 (1 Low)
*2
28/03/2026
06:00

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North West & Merseyside

Latest measured levels based on data provided by the 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/m2 (1 Low)n/m9 (1 Low)n/m 28/03/2026
06:00
Blackburn Accrington Road
Timeseries Graph
n/m4 (1 Low)n/mn/mn/m 28/03/2026
06:00
Blackburn Audley Park
Timeseries Graph
71 (3 Low)n/mn/m7 (1 Low)12 (1 Low)
*2
28/03/2026
06:00
Blackpool Marton
Timeseries Graph
85 (3 Low)1 (1 Low)n/m9 (1 Low)18 (2 Low)
*2
28/03/2026
06:00
Blackpool Whitegate Drive
Timeseries Graph
n/mn/mn/m10 (1 Low)n/m 28/03/2026
06:00
Bury Whitefield Roadside
Timeseries Graph
n/m2 (1 Low)n/mn/m21 (2 Low)
*1
28/03/2026
06:00
Carlisle Morton A595
Timeseries Graph
n/m2 (1 Low)n/m6 (1 Low)16 (1 Low)
*1
28/03/2026
06:00
Crewe Coppenhall
Timeseries Graph
69 (3 Low)6 (1 Low)n/m6 (1 Low)12 (1 Low)
*2
28/03/2026
06:00
Glazebury
Timeseries Graph
81 (3 Low)1 (1 Low)n/m7 (1 Low)12 (1 Low)
*2
28/03/2026
06:00
Liverpool Speke
Timeseries Graph
79 (3 Low)2 (1 Low)1 (1 Low)9 (1 Low)21 (2 Low)
*1
28/03/2026
06:00
Liverpool Thirlmere Park
Timeseries Graph
82 (3 Low)n/mn/m8 (1 Low)17 (2 Low)
*2
28/03/2026
06:00
Manchester Piccadilly
Timeseries Graph
64 (2 Low)6 (1 Low)n/a9 (1 Low)18 (2 Low)
*2
28/03/2026
06:00
Manchester Sharston
Timeseries Graph
79 (3 Low)3 (1 Low)n/m7 (1 Low)14 (1 Low)
*2
28/03/2026
06:00
Middlewich St Michael's Way
Timeseries Graph
n/mn/mn/m7 (1 Low)n/m 28/03/2026
06:00
Preston
Timeseries Graph
80 (3 Low)3 (1 Low)n/m8 (1 Low)17 (2 Low)
*2
28/03/2026
06:00
Salford Eccles
Timeseries Graph
81 (3 Low)4 (1 Low)n/m8 (1 Low)17 (2 Low)
*2
28/03/2026
06:00
Shaw Crompton Way
Timeseries Graph
n/m3 (1 Low)n/mn/mn/m 28/03/2026
06:00
St Helens Linkway
Timeseries Graph
n/mn/an/mn/m22 (2 Low)
*1
28/03/2026
06:00
Tameside A635 Manchester Road
Timeseries Graph
n/mn/mn/m7 (1 Low)n/m 28/03/2026
06:00
Warrington
Timeseries Graph
n/m2 (1 Low)n/m7 (1 Low)17 (2 Low)
*1
28/03/2026
06:00
Widnes Milton Road
Timeseries Graph
n/m3 (1 Low)n/mn/mn/m 28/03/2026
06:00
Wigan Centre
Timeseries Graph
77 (3 Low)1 (1 Low)n/m8 (1 Low)17 (2 Low)
*2
28/03/2026
06:00
Wirral Tranmere
Timeseries Graph
82 (3 Low)1 (1 Low)n/m8 (1 Low)15 (1 Low)
*2
28/03/2026
06:00

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Northern Ireland

Latest measured levels based on data provided by the 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/m6 (1 Low)n/mn/m21 (2 Low)
*1
28/03/2026
06:00
Ballymena Antrim Road
Timeseries Graph
n/m2 (1 Low)n/mn/mn/m 28/03/2026
06:00
Ballymena Ballykeel
Timeseries Graph
n/m0 (1 Low)5 (1 Low)n/mn/m 28/03/2026
06:00
Belfast Centre
Timeseries Graph
67 (3 Low)2 (1 Low)1 (1 Low)8 (1 Low)19 (2 Low)
*2
28/03/2026
06:00
Belfast Stockman's Lane
Timeseries Graph
n/m6 (1 Low)n/mn/m20 (2 Low)
*1
28/03/2026
06:00
Derry Rosemount
Timeseries Graph
80 (3 Low)1 (1 Low)1 (1 Low)6 (1 Low)14 (1 Low)
*1
28/03/2026
06:00
Lough Navar
Timeseries Graph
71 (3 Low)n/mn/m6 (1 Low)11 (1 Low)
*2
28/03/2026
06:00

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Scottish Borders

Latest measured levels based on data provided by the 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/m2 (1 Low)n/mn/mn/m 28/03/2026
06:00
Eskdalemuir
Timeseries Graph
76 (3 Low)0 (1 Low)n/mn/mn/m 28/03/2026
06:00
Peebles
Timeseries Graph
82 (3 Low)1 (1 Low)n/mn/mn/m 28/03/2026
06:00

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South East

Latest measured levels based on data provided by the 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/m5 (1 Low)n/m 28/03/2026
06:00
Brighton Preston Park
Timeseries Graph
56 (2 Low)4 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Chatham Roadside
Timeseries Graph
n/m2 (1 Low)n/m6 (1 Low)23 (2 Low)
*1
28/03/2026
06:00
Chilbolton Observatory
Timeseries Graph
68 (3 Low)5 (1 Low)1 (1 Low)5 (1 Low)8 (1 Low)
*2
28/03/2026
06:00
Eastbourne
Timeseries Graph
58 (2 Low)2 (1 Low)n/m5 (1 Low)8 (1 Low)
*2
28/03/2026
06:00
Farnborough Cherrywood
Timeseries Graph
n/mn/mn/m5 (1 Low)9 (1 Low)
*2
28/03/2026
06:00
Horley
Timeseries Graph
n/m3 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
Lullington Heath
Timeseries Graph
67 (3 Low)0 (1 Low)n/a4 (1 Low)7 (1 Low)
*2
28/03/2026
06:00
Maidstone Upper Stone Street
Timeseries Graph
n/mn/mn/m8 (1 Low)17 (2 Low)
*2
28/03/2026
06:00
Milton Keynes Civic Centre
Timeseries Graph
66 (2 Low)n/mn/m5 (1 Low)9 (1 Low)
*2
28/03/2026
06:00
Oxford Centre Roadside
Timeseries Graph
n/m6 (1 Low)n/mn/mn/m 28/03/2026
06:00
Oxford St Ebbes
Timeseries Graph
50 (2 Low)6 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Portsmouth
Timeseries Graph
n/a8 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
28/03/2026
06:00
Portsmouth Anglesea Road
Timeseries Graph
n/m12 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Reading London Road
Timeseries Graph
n/m11 (1 Low)n/mn/m11 (1 Low)
*1
28/03/2026
06:00
Reading New Town
Timeseries Graph
62 (2 Low)7 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
28/03/2026
06:00
Reading Rose Kiln Lane
Timeseries Graph
n/mn/mn/m5 (1 Low)n/m 28/03/2026
06:00
Rochester Stoke
Timeseries Graph
53 (2 Low)13 (1 Low)1 (1 Low)6 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Slough Windmill Bath Road
Timeseries Graph
n/mn/mn/m6 (1 Low)13 (1 Low)
*2
28/03/2026
06:00
Southampton A33
Timeseries Graph
n/m16 (1 Low)n/m6 (1 Low)13 (1 Low)
*2
28/03/2026
06:00
Southampton Centre
Timeseries Graph
53 (2 Low)8 (1 Low)1 (1 Low)7 (1 Low)12 (1 Low)
*2
28/03/2026
06:00
Storrington Roadside
Timeseries Graph
n/m19 (1 Low)n/m6 (1 Low)12 (1 Low)
*2
28/03/2026
06:00
Worthing A27 Roadside
Timeseries Graph
n/m15 (1 Low)n/m10 (1 Low)n/m 28/03/2026
06:00
Worthing East Ten Acres
Timeseries Graph
n/mn/mn/m7 (1 Low)12 (1 Low)
*2
28/03/2026
06:00

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South Wales

Latest measured levels based on data provided by the 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
60 (2 Low)6 (1 Low)1 (1 Low)8 (1 Low)11 (1 Low)
*1
28/03/2026
06:00
Cardiff Newport Road
Timeseries Graph
n/m6 (1 Low)n/mn/m12 (1 Low)
*1
28/03/2026
06:00
Chepstow A48
Timeseries Graph
n/m20 (1 Low)n/m8 (1 Low)15 (1 Low)
*1
28/03/2026
06:00
Cwmbran Crownbridge
Timeseries Graph
79 (3 Low)1 (1 Low)n/mn/mn/m 28/03/2026
06:00
Hafod-yr-ynys Hill Roadside
Timeseries Graph
n/m42 (1 Low)n/mn/mn/m 28/03/2026
06:00
Narberth
Timeseries Graph
70 (3 Low)1 (1 Low)1 (1 Low)6 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
Newport
Timeseries Graph
n/m3 (1 Low)n/m5 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
Port Talbot Margam
Timeseries Graph
64 (2 Low)6 (1 Low)1 (1 Low)5 (1 Low)15 (1 Low)
*3
28/03/2026
06:00
Swansea Roadside
Timeseries Graph
n/m7 (1 Low)n/m4 (1 Low)14 (1 Low)
*1
28/03/2026
06:00

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South West

Latest measured levels based on data provided by the 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/m7 (1 Low)14 (1 Low)
*2
28/03/2026
06:00
Bath A4 Roadside
Timeseries Graph
n/mn/an/mn/mn/m 23/03/2026
15:00
Bournemouth
Timeseries Graph
61 (2 Low)3 (1 Low)n/m8 (1 Low)n/m 28/03/2026
06:00
Bristol Patchway
Timeseries Graph
n/mn/mn/m5 (1 Low)9 (1 Low)
*2
28/03/2026
06:00
Bristol St Paul's
Timeseries Graph
69 (3 Low)3 (1 Low)n/m5 (1 Low)16 (1 Low)
*1
28/03/2026
06:00
Bristol Temple Way
Timeseries Graph
n/m4 (1 Low)n/m7 (1 Low)13 (1 Low)
*2
28/03/2026
06:00
Charlton Mackrell
Timeseries Graph
69 (3 Low)1 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Cheltenham A40 Gloucester Road
Timeseries Graph
n/mn/mn/m6 (1 Low)n/m 28/03/2026
06:00
Christchurch Barrack Road
Timeseries Graph
n/m5 (1 Low)n/m6 (1 Low)n/m 28/03/2026
06:00
Exeter Roadside
Timeseries Graph
60 (2 Low)8 (1 Low)n/mn/mn/m 28/03/2026
06:00
Gloucester Tredworth
Timeseries Graph
n/mn/mn/m8 (1 Low)13 (1 Low)
*2
28/03/2026
06:00
Honiton
Timeseries Graph
52 (2 Low)5 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
28/03/2026
06:00
Plymouth Centre
Timeseries Graph
61 (2 Low)12 (1 Low)n/m8 (1 Low)16 (1 Low)
*2
28/03/2026
06:00
Plymouth Tavistock Road
Timeseries Graph
n/m11 (1 Low)n/mn/mn/m 28/03/2026
05:00
Saltash Callington Road
Timeseries Graph
n/mn/mn/m3 (1 Low)15 (1 Low)
*1
28/03/2026
06:00
Swindon Walcot
Timeseries Graph
59 (2 Low)3 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
28/03/2026
06:00
Yarner Wood
Timeseries Graph
72 (3 Low)1 (1 Low)n/m4 (1 Low)8 (1 Low)
*2
28/03/2026
06:00

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West Ireland

Latest measured levels based on data provided by the 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
90 (3 Low)n/mn/mn/mn/m 28/03/2026
06:00

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West Midlands

Latest measured levels based on data provided by the 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
56 (2 Low)16 (1 Low)n/m7 (1 Low)13 (1 Low)
*2
28/03/2026
06:00
Birmingham Hall Green
Timeseries Graph
74 (3 Low)3 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Birmingham Ladywood
Timeseries Graph
59 (2 Low)5 (1 Low)n/a5 (1 Low)9 (1 Low)
*2
28/03/2026
06:00
Birmingham University
Timeseries Graph
n/mn/mn/m6 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Burton-on-Trent Horninglow
Timeseries Graph
69 (3 Low)3 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
Cannock A5190 Roadside
Timeseries Graph
n/m7 (1 Low)n/m6 (1 Low)n/m 28/03/2026
06:00
Coventry Allesley
Timeseries Graph
64 (2 Low)6 (1 Low)n/m5 (1 Low)9 (1 Low)
*2
28/03/2026
06:00
Coventry Binley Road
Timeseries Graph
n/m20 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
Leamington Spa
Timeseries Graph
69 (3 Low)6 (1 Low)n/m6 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Leamington Spa Rugby Road
Timeseries Graph
n/m9 (1 Low)n/m5 (1 Low)8 (1 Low)
*2
28/03/2026
06:00
Leominster
Timeseries Graph
67 (3 Low)n/an/mn/mn/m 28/03/2026
06:00
Oldbury Birmingham Road
Timeseries Graph
n/m11 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
Shrewsbury Underdale
Timeseries Graph
n/mn/mn/m5 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Stoke-on-Trent A50 Roadside
Timeseries Graph
n/m14 (1 Low)n/m9 (1 Low)17 (2 Low)
*2
28/03/2026
06:00
Stoke-on-Trent Centre
Timeseries Graph
65 (2 Low)6 (1 Low)n/m7 (1 Low)14 (1 Low)
*2
28/03/2026
06:00
Telford Hollinswood
Timeseries Graph
72 (3 Low)9 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Walsall Caldmore
Timeseries Graph
n/mn/mn/m6 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
Walsall Woodlands
Timeseries Graph
66 (2 Low)8 (1 Low)n/mn/mn/m 28/03/2026
06:00
West Bromwich Kenrick Park
Timeseries Graph
68 (3 Low)8 (1 Low)n/mn/mn/m 28/03/2026
06:00
Worcester Tolladine
Timeseries Graph
n/mn/mn/m5 (1 Low)10 (1 Low)
*2
28/03/2026
06:00

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Yorkshire & Humberside

Latest measured levels based on data provided by the 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
76 (3 Low)2 (1 Low)1 (1 Low)5 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
Bradford Mayo Avenue
Timeseries Graph
n/m4 (1 Low)n/mn/mn/m 28/03/2026
05:00
Bradford Shipley Airedale Road
Timeseries Graph
n/mn/mn/m7 (1 Low)15 (1 Low)
*2
28/03/2026
06:00
Dewsbury Ashworth Grange
Timeseries Graph
69 (3 Low)2 (1 Low)n/m6 (1 Low)11 (1 Low)
*2
28/03/2026
06:00
Doncaster A630 Cleveland Street
Timeseries Graph
n/m3 (1 Low)n/m6 (1 Low)n/m 28/03/2026
06:00
Harrogate Woodlands
Timeseries Graph
n/mn/mn/m5 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
High Muffles
Timeseries Graph
69 (3 Low)1 (1 Low)n/m4 (1 Low)7 (1 Low)
*2
28/03/2026
06:00
Hull Freetown
Timeseries Graph
64 (2 Low)14 (1 Low)2 (1 Low)7 (1 Low)13 (1 Low)
*2
28/03/2026
06:00
Hull Holderness Road
Timeseries Graph
n/m7 (1 Low)n/mn/an/a 28/03/2026
06:00
Immingham Woodlands Avenue
Timeseries Graph
68 (3 Low)3 (1 Low)n/m5 (1 Low)10 (1 Low)
*2
28/03/2026
06:00
Leeds Centre
Timeseries Graph
70 (3 Low)10 (1 Low)1 (1 Low)6 (1 Low)12 (1 Low)
*2
28/03/2026
06:00
Leeds Headingley Kerbside
Timeseries Graph
n/m4 (1 Low)n/m9 (1 Low)19 (2 Low)
*1
28/03/2026
06:00
Rotherham East Dene
Timeseries Graph
n/mn/mn/m8 (1 Low)13 (1 Low)
*2
28/03/2026
06:00
Scunthorpe Town
Timeseries Graph
n/mn/a2 (1 Low)9 (1 Low)11 (1 Low)
*1
28/03/2026
06:00
Sheffield Barnsley Road
Timeseries Graph
n/m4 (1 Low)n/mn/an/m 28/03/2026
06:00
Sheffield Devonshire Green
Timeseries Graph
74 (3 Low)3 (1 Low)n/m6 (1 Low)13 (1 Low)
*2
28/03/2026
06:00
Sheffield Tinsley
Timeseries Graph
69 (3 Low)5 (1 Low)n/m6 (1 Low)13 (1 Low)
*2
28/03/2026
06:00
Wakefield Alverthorpe
Timeseries Graph
n/mn/mn/m7 (1 Low)13 (1 Low)
*2
28/03/2026
06:00
York Bootham
Timeseries Graph
51 (2 Low)7 (1 Low)n/m7 (1 Low)14 (1 Low)
*1
28/03/2026
06:00
York Fishergate
Timeseries Graph
n/m2 (1 Low)n/m3 (1 Low)18 (2 Low)
*1
28/03/2026
06:00

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