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 7am Thu 23rd Apr 2026
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 |
62 (2 Low) | n/m | n/m | 3 (1 Low) | 7 (1 Low) *2 | 23/04/2026 07:00:00 |
| Bush Estate Timeseries Graph |
77 (3 Low) | 5 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Edinburgh St Leonards Timeseries Graph |
84 (3 Low) | 6 (1 Low) | 1 (1 Low) | 3 (1 Low) | 6 (1 Low) *2 | 23/04/2026 07:00:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 21 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 21 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/04/2026 07:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 67 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Glasgow Townhead Timeseries Graph |
84 (3 Low) | 20 (1 Low) | n/m | 3 (1 Low) | 8 (1 Low) *2 | 23/04/2026 07:00:00 |
| Grangemouth Timeseries Graph |
n/m | 5 (1 Low) | 1 (1 Low) | 2 (1 Low) | 7 (1 Low) *1 | 23/04/2026 07:00:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 5 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 19 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/04/2026 07:00:00 |
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 |
78 (3 Low) | 7 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 23/04/2026 07:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 9 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 23/04/2026 07:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 22 (1 Low) | n/m | 8 (1 Low) | n/m | 23/04/2026 07:00:00 |
| Derby Stockbrook Park Timeseries Graph |
75 (3 Low) | n/m | n/m | 7 (1 Low) | 14 (1 Low) *2 | 23/04/2026 07:00:00 |
| Ladybower Timeseries Graph |
94 (3 Low) | 1 (1 Low) | 1 (1 Low) | 8 (1 Low) | 13 (1 Low) *2 | 23/04/2026 07:00:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 11 (1 Low) | n/m | 8 (1 Low) | 17 (2 Low) *2 | 23/04/2026 07:00:00 |
| Leicester University Timeseries Graph |
77 (3 Low) | 6 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 23/04/2026 07:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 42 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 12 (1 Low) *2 | 23/04/2026 07:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 13 (1 Low) *2 | 23/04/2026 07:00:00 |
| Northampton Spring Park Timeseries Graph |
71 (3 Low) | 4 (1 Low) | n/m | 11 (1 Low) | n/m | 23/04/2026 07:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
75 (3 Low) | 4 (1 Low) | 1 (1 Low) | 8 (1 Low) | 13 (1 Low) *2 | 23/04/2026 07:00:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 12 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 23/04/2026 07:00:00 |
| Tallington Timeseries Graph |
53 (2 Low) | n/m | n/m | 9 (1 Low) | 15 (1 Low) *2 | 23/04/2026 07:00:00 |
| Toft Newton Timeseries Graph |
76 (3 Low) | 2 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 23/04/2026 07:00:00 |
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/m | n/a | n/m | 9 (1 Low) | 15 (1 Low) *2 | 23/04/2026 07:00:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 18 (2 Low) *2 | 23/04/2026 07:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 13 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 53 (1 Low) | n/m | 11 (1 Low) | n/m | 23/04/2026 07:00:00 |
| Norwich Lakenfields Timeseries Graph |
57 (2 Low) | 14 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 23/04/2026 07:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
| Sibton Timeseries Graph |
53 (2 Low) | n/m | n/m | 9 (1 Low) | 14 (1 Low) *2 | 23/04/2026 07:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
| Southend-on-Sea Timeseries Graph |
67 (3 Low) | 12 (1 Low) | n/m | 10 (1 Low) | 17 (2 Low) *2 | 23/04/2026 07:00:00 |
| St Osyth Timeseries Graph |
82 (3 Low) | 7 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *2 | 23/04/2026 07:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 33 (1 Low) | n/m | 11 (1 Low) | 20 (2 Low) *1 | 23/04/2026 07:00:00 |
| Thurrock Timeseries Graph |
n/a | n/a | 1 (1 Low) | 11 (1 Low) | 19 (2 Low) *2 | 23/04/2026 07:00:00 |
| Weybourne Timeseries Graph |
90 (3 Low) | n/m | n/m | 9 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
| Wicken Fen Timeseries Graph |
47 (2 Low) | 4 (1 Low) | 1 (1 Low) | 8 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
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/m | 14 (1 Low) | n/m | 12 (2 Low) | 34 (3 Low) *1 | 23/04/2026 07:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 30 (2 Low) *1 | 23/04/2026 07:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 32 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | n/m | 23/04/2026 07:00:00 |
| London Bexley Timeseries Graph |
n/m | 12 (1 Low) | n/m | 8 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
| London Bloomsbury Timeseries Graph |
58 (2 Low) | 19 (1 Low) | 1 (1 Low) | 10 (1 Low) | 21 (2 Low) *2 | 23/04/2026 07:00:00 |
| London Farringdon Street Timeseries Graph |
n/m | 25 (1 Low) | n/m | 12 (2 Low) | n/m | 23/04/2026 07:00:00 |
| London Haringey Priory Park South Timeseries Graph |
62 (2 Low) | 21 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
| London Harlington Timeseries Graph |
68 (3 Low) | 18 (1 Low) | n/m | 9 (1 Low) | 18 (2 Low) *2 | 23/04/2026 07:00:00 |
| London Hillingdon Timeseries Graph |
73 (3 Low) | 14 (1 Low) | n/m | 10 (1 Low) | 20 (2 Low) *2 | 23/04/2026 07:00:00 |
| London Honor Oak Park Timeseries Graph |
76 (3 Low) | n/m | n/m | 9 (1 Low) | 17 (2 Low) *2 | 23/04/2026 07:00:00 |
| London Marylebone Road Timeseries Graph |
68 (3 Low) | 19 (1 Low) | 2 (1 Low) | n/a | 28 (2 Low) *1 | 23/04/2026 07:00:00 |
| London N. Kensington Timeseries Graph |
77 (3 Low) | 10 (1 Low) | 1 (1 Low) | 9 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 19 (2 Low) *2 | 23/04/2026 07:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 19 (2 Low) *2 | 23/04/2026 07:00:00 |
| London Westminster Timeseries Graph |
61 (2 Low) | 17 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | 42 (3 Low) *1 | 23/04/2026 07:00:00 |
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 |
62 (2 Low) | 6 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Inverness Timeseries Graph |
n/m | 6 (1 Low) | n/m | 3 (1 Low) | 8 (1 Low) *2 | 23/04/2026 07:00:00 |
| Lerwick Timeseries Graph |
73 (3 Low) | n/m | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Strathvaich Timeseries Graph |
66 (2 Low) | n/m | n/m | n/m | n/m | 23/04/2026 07:00:00 |
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 |
94 (3 Low) | 3 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 23/04/2026 07:00:00 |
| Kielder Water Timeseries Graph |
80 (3 Low) | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 23/04/2026 07:00:00 |
| Middlesbrough Timeseries Graph |
84 (3 Low) | 11 (1 Low) | 1 (1 Low) | 4 (1 Low) | 15 (1 Low) *1 | 23/04/2026 07:00:00 |
| Newcastle Centre Timeseries Graph |
86 (3 Low) | 12 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *1 | 23/04/2026 07:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/04/2026 07:00:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 23/04/2026 07:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 23 (1 Low) | n/m | 6 (1 Low) | n/m | 23/04/2026 07:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 14 (1 Low) | n/m | 6 (1 Low) | 19 (2 Low) *1 | 23/04/2026 07:00:00 |
| Sunderland Silksworth Timeseries Graph |
91 (3 Low) | 8 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/04/2026 07:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 4 (1 Low) | n/m | 4 (1 Low) | n/m | 23/04/2026 07:00:00 |
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 |
85 (3 Low) | 11 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/04/2026 07:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 21/04/2026 19:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 13 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
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 |
74 (3 Low) | 3 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Wrexham Timeseries Graph |
n/m | 27 (1 Low) | 0 (1 Low) | 8 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
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/m | 26 (1 Low) | n/m | 11 (1 Low) | n/m | 23/04/2026 07:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 13 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Blackburn Audley Park Timeseries Graph |
70 (3 Low) | n/m | n/m | 6 (1 Low) | 11 (1 Low) *2 | 23/04/2026 07:00:00 |
| Blackpool Marton Timeseries Graph |
75 (3 Low) | 5 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 23/04/2026 07:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | n/m | 23/04/2026 07:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 10 (1 Low) | n/m | n/m | 17 (2 Low) *1 | 23/04/2026 07:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 14 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *1 | 23/04/2026 07:00:00 |
| Crewe Coppenhall Timeseries Graph |
61 (2 Low) | 29 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 23/04/2026 07:00:00 |
| Glazebury Timeseries Graph |
60 (2 Low) | 8 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 23/04/2026 07:00:00 |
| Liverpool Speke Timeseries Graph |
56 (2 Low) | 43 (1 Low) | 2 (1 Low) | 10 (1 Low) | 21 (2 Low) *1 | 23/04/2026 07:00:00 |
| Liverpool Thirlmere Park Timeseries Graph |
63 (2 Low) | n/m | n/m | 13 (2 Low) | 21 (2 Low) *2 | 23/04/2026 07:00:00 |
| Manchester Piccadilly Timeseries Graph |
63 (2 Low) | 17 (1 Low) | 1 (1 Low) | 11 (1 Low) | 18 (2 Low) *2 | 23/04/2026 07:00:00 |
| Manchester Sharston Timeseries Graph |
60 (2 Low) | 11 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 23/04/2026 07:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | n/m | 23/04/2026 07:00:00 |
| Preston Timeseries Graph |
77 (3 Low) | 5 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 23/04/2026 07:00:00 |
| Salford Eccles Timeseries Graph |
74 (3 Low) | 32 (1 Low) | n/m | 10 (1 Low) | 20 (2 Low) *2 | 23/04/2026 07:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 8 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | n/a | n/m | n/m | 22 (2 Low) *1 | 23/04/2026 07:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 23/04/2026 07:00:00 |
| Warrington Timeseries Graph |
n/m | 22 (1 Low) | n/m | 14 (2 Low) | 23 (2 Low) *1 | 23/04/2026 07:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 40 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Wigan Centre Timeseries Graph |
67 (3 Low) | 12 (1 Low) | n/m | 10 (1 Low) | 24 (2 Low) *2 | 23/04/2026 07:00:00 |
| Wirral Tranmere Timeseries Graph |
68 (3 Low) | 15 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 23/04/2026 07:00:00 |
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/m | 18 (1 Low) | n/m | n/m | 19 (2 Low) *1 | 23/04/2026 07:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 15 (1 Low) | 1 (1 Low) | n/m | n/m | 23/04/2026 07:00:00 |
| Belfast Centre Timeseries Graph |
64 (2 Low) | 13 (1 Low) | 1 (1 Low) | 8 (1 Low) | 17 (2 Low) *2 | 23/04/2026 07:00:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 38 (1 Low) | n/m | n/m | 23 (2 Low) *1 | 23/04/2026 07:00:00 |
| Derry Rosemount Timeseries Graph |
78 (3 Low) | 5 (1 Low) | 1 (1 Low) | 4 (1 Low) | 13 (1 Low) *1 | 23/04/2026 07:00:00 |
| Lough Navar Timeseries Graph |
63 (2 Low) | n/m | n/m | 6 (1 Low) | 11 (1 Low) *2 | 23/04/2026 07:00:00 |
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/m | 14 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Eskdalemuir Timeseries Graph |
71 (3 Low) | 1 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Peebles Timeseries Graph |
83 (3 Low) | 3 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
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/m | n/m | n/m | 8 (1 Low) | n/m | 23/04/2026 07:00:00 |
| Brighton Preston Park Timeseries Graph |
64 (2 Low) | 11 (1 Low) | n/m | 10 (1 Low) | 18 (2 Low) *2 | 23/04/2026 07:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 15 (1 Low) | n/m | 11 (1 Low) | 31 (2 Low) *1 | 23/04/2026 07:00:00 |
| Chilbolton Observatory Timeseries Graph |
80 (3 Low) | 9 (1 Low) | 1 (1 Low) | 10 (1 Low) | 19 (2 Low) *2 | 23/04/2026 07:00:00 |
| Eastbourne Timeseries Graph |
60 (2 Low) | 15 (1 Low) | n/m | 10 (1 Low) | 18 (2 Low) *2 | 23/04/2026 07:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 20 (2 Low) *2 | 23/04/2026 07:00:00 |
| Horley Timeseries Graph |
n/m | 20 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 23/04/2026 07:00:00 |
| Lullington Heath Timeseries Graph |
75 (3 Low) | 11 (1 Low) | 2 (1 Low) | 10 (1 Low) | 17 (2 Low) *2 | 23/04/2026 07:00:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 27 (2 Low) *2 | 23/04/2026 07:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
68 (3 Low) | n/m | n/m | 10 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Oxford St Ebbes Timeseries Graph |
64 (2 Low) | 10 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 23/04/2026 07:00:00 |
| Portsmouth Timeseries Graph |
74 (3 Low) | 18 (1 Low) | n/m | 9 (1 Low) | 18 (2 Low) *2 | 23/04/2026 07:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 15 (1 Low) | n/m | 10 (1 Low) | 21 (2 Low) *2 | 23/04/2026 07:00:00 |
| Reading London Road Timeseries Graph |
n/m | 26 (1 Low) | n/m | n/m | 22 (2 Low) *1 | 23/04/2026 07:00:00 |
| Reading New Town Timeseries Graph |
69 (3 Low) | 10 (1 Low) | n/m | 10 (1 Low) | 17 (2 Low) *2 | 23/04/2026 07:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | n/m | 23/04/2026 07:00:00 |
| Rochester Stoke Timeseries Graph |
79 (3 Low) | 15 (1 Low) | 1 (1 Low) | 11 (1 Low) | 18 (2 Low) *2 | 23/04/2026 07:00:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 24 (2 Low) *2 | 23/04/2026 07:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 15 (1 Low) | n/m | 10 (1 Low) | 18 (2 Low) *2 | 23/04/2026 07:00:00 |
| Southampton Centre Timeseries Graph |
73 (3 Low) | 31 (1 Low) | 1 (1 Low) | 11 (1 Low) | 23 (2 Low) *2 | 23/04/2026 07:00:00 |
| Storrington Roadside Timeseries Graph |
n/m | 14 (1 Low) | n/m | 9 (1 Low) | 19 (2 Low) *2 | 23/04/2026 07:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 26 (1 Low) | n/m | 12 (2 Low) | n/m | 23/04/2026 07:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 21 (2 Low) *2 | 23/04/2026 07:00:00 |
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 |
77 (3 Low) | 10 (1 Low) | 1 (1 Low) | 11 (1 Low) | 22 (2 Low) *1 | 23/04/2026 07:00:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 13 (1 Low) | n/m | n/m | 28 (2 Low) *1 | 23/04/2026 07:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 33 (1 Low) | n/m | 13 (2 Low) | 24 (2 Low) *1 | 23/04/2026 07:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
83 (3 Low) | 5 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/m | n/m | 23/04/2026 06:00:00 |
| Narberth Timeseries Graph |
92 (3 Low) | n/a | n/a | n/a | n/a | 23/04/2026 06:00:00 |
| Newport Timeseries Graph |
n/m | 15 (1 Low) | n/m | 9 (1 Low) | 18 (2 Low) *2 | 23/04/2026 07:00:00 |
| Port Talbot Margam Timeseries Graph |
95 (3 Low) | 7 (1 Low) | 3 (1 Low) | 14 (2 Low) | 18 (2 Low) *3 | 23/04/2026 07:00:00 |
| Swansea Roadside Timeseries Graph |
n/m | 20 (1 Low) | n/m | 12 (2 Low) | 22 (2 Low) *1 | 23/04/2026 07:00:00 |
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/m | n/m | n/m | 10 (1 Low) | 20 (2 Low) *2 | 23/04/2026 07:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 23/03/2026 12:00:00 |
| Bournemouth Timeseries Graph |
76 (3 Low) | 9 (1 Low) | n/m | 11 (1 Low) | n/m | 23/04/2026 07:00:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
| Bristol St Paul's Timeseries Graph |
76 (3 Low) | 18 (1 Low) | n/m | 10 (1 Low) | 24 (2 Low) *1 | 23/04/2026 07:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 39 (1 Low) | n/m | 10 (1 Low) | 21 (2 Low) *2 | 23/04/2026 07:00:00 |
| Charlton Mackrell Timeseries Graph |
74 (3 Low) | 5 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 23/04/2026 07:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 23/04/2026 07:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 16 (1 Low) | n/m | 9 (1 Low) | n/m | 23/04/2026 07:00:00 |
| Exeter Roadside Timeseries Graph |
76 (3 Low) | 26 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
| Honiton Timeseries Graph |
83 (3 Low) | 12 (1 Low) | n/m | 10 (1 Low) | 18 (2 Low) *2 | 23/04/2026 07:00:00 |
| Plymouth Centre Timeseries Graph |
81 (3 Low) | 13 (1 Low) | n/m | 21 (2 Low) | 103 (10 Very High) *2 | 23/04/2026 07:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/m | n/m | 23/04/2026 06:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 26 (2 Low) *1 | 23/04/2026 07:00:00 |
| Swindon Walcot Timeseries Graph |
67 (3 Low) | 11 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
| Yarner Wood Timeseries Graph |
93 (3 Low) | 6 (1 Low) | n/m | 10 (1 Low) | 18 (2 Low) *2 | 23/04/2026 07:00:00 |
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 |
79 (3 Low) | n/m | n/m | n/m | n/m | 23/04/2026 07:00:00 |
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 |
61 (2 Low) | 17 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 23/04/2026 07:00:00 |
| Birmingham Hall Green Timeseries Graph |
71 (3 Low) | 9 (1 Low) | n/m | 9 (1 Low) | 19 (2 Low) *2 | 23/04/2026 07:00:00 |
| Birmingham Ladywood Timeseries Graph |
n/a | 12 (1 Low) | 1 (1 Low) | 9 (1 Low) | 17 (2 Low) *2 | 23/04/2026 07:00:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 17 (2 Low) *2 | 23/04/2026 07:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
75 (3 Low) | 5 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 23/04/2026 07:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 9 (1 Low) | n/m | 8 (1 Low) | n/m | 23/04/2026 07:00:00 |
| Coventry Allesley Timeseries Graph |
65 (2 Low) | 5 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 23/04/2026 07:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 7 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 23/04/2026 07:00:00 |
| Leamington Spa Timeseries Graph |
75 (3 Low) | 4 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *2 | 23/04/2026 07:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 4 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 23/04/2026 07:00:00 |
| Leominster Timeseries Graph |
69 (3 Low) | 12 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 16 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 23/04/2026 07:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 45 (1 Low) | n/m | 11 (1 Low) | 19 (2 Low) *2 | 23/04/2026 07:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
72 (3 Low) | 7 (1 Low) | n/m | 9 (1 Low) | 23 (2 Low) *2 | 23/04/2026 07:00:00 |
| Telford Hollinswood Timeseries Graph |
67 (3 Low) | 22 (1 Low) | n/m | 8 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
| Walsall Woodlands Timeseries Graph |
68 (3 Low) | 10 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
65 (2 Low) | 16 (1 Low) | n/m | n/m | n/m | 23/04/2026 07:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 15 (1 Low) *2 | 23/04/2026 07:00:00 |
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 |
79 (3 Low) | 7 (1 Low) | 1 (1 Low) | 8 (1 Low) | 15 (1 Low) *2 | 23/04/2026 07:00:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | n/m | 23/04/2026 06:00:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
74 (3 Low) | 26 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 23/04/2026 07:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 9 (1 Low) | n/m | 9 (1 Low) | n/m | 23/04/2026 07:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 23/04/2026 07:00:00 |
| High Muffles Timeseries Graph |
81 (3 Low) | 0 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 23/04/2026 07:00:00 |
| Hull Freetown Timeseries Graph |
86 (3 Low) | 7 (1 Low) | 0 (1 Low) | 7 (1 Low) | 15 (1 Low) *2 | 23/04/2026 07:00:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 8 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 23/04/2026 07:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
79 (3 Low) | 20 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 23/04/2026 07:00:00 |
| Leeds Centre Timeseries Graph |
80 (3 Low) | 7 (1 Low) | 2 (1 Low) | 7 (1 Low) | 12 (1 Low) *2 | 23/04/2026 07:00:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 21 (1 Low) | n/m | 9 (1 Low) | 24 (2 Low) *1 | 23/04/2026 07:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 15 (1 Low) *2 | 23/04/2026 07:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 5 (1 Low) | 2 (1 Low) | 7 (1 Low) | 18 (2 Low) *1 | 23/04/2026 07:00:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 33 (1 Low) | n/m | 9 (1 Low) | n/m | 23/04/2026 07:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
72 (3 Low) | 13 (1 Low) | n/m | 11 (1 Low) | 19 (2 Low) *2 | 23/04/2026 07:00:00 |
| Sheffield Tinsley Timeseries Graph |
66 (2 Low) | 7 (1 Low) | n/m | 9 (1 Low) | 21 (2 Low) *2 | 23/04/2026 07:00:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 16 (1 Low) *2 | 23/04/2026 07:00:00 |
| York Bootham Timeseries Graph |
62 (2 Low) | 3 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *1 | 23/04/2026 07:00:00 |
| York Fishergate Timeseries Graph |
n/m | 5 (1 Low) | n/m | 4 (1 Low) | n/a | 23/04/2026 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