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 9pm Sun 1st Mar 2026
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 |
73 (3 Low) | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 28/02/2026 24:00 |
| Bush Estate Timeseries Graph |
85 (3 Low) | 3 (1 Low) | n/m | n/m | n/m | 01/03/2026 17:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/m | n/m | 28/02/2026 22:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 40 (1 Low) | n/m | n/m | n/m | 28/02/2026 21:00 |
| Edinburgh St Leonards Timeseries Graph |
79 (3 Low) | 15 (1 Low) | 4 (1 Low) | 4 (1 Low) | 9 (1 Low) *2 | 01/03/2026 01:15 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | n/m | 28/02/2026 22:00 |
| Glasgow High Street Timeseries Graph |
n/m | 15 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 28/02/2026 24:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 69 (2 Low) | n/m | n/m | n/m | 28/02/2026 23:00 |
| Glasgow Townhead Timeseries Graph |
84 (3 Low) | 15 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 28/02/2026 24:00 |
| Grangemouth Timeseries Graph |
n/m | 11 (1 Low) | 1 (1 Low) | 5 (1 Low) | 8 (1 Low) *1 | 01/03/2026 02:15 |
| Grangemouth Moray Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 28/02/2026 21:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 37 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/03/2026 13:00 |
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 |
75 (3 Low) | 23 (1 Low) | n/m | 6 (1 Low) | 8 (1 Low) *2 | 01/03/2026 17:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 33 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) *2 | 01/03/2026 02:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 66 (1 Low) | n/m | 7 (1 Low) | n/m | 01/03/2026 03:00 |
| Derby Stockbrook Park Timeseries Graph |
70 (3 Low) | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 01/03/2026 04:00 |
| Ladybower Timeseries Graph |
82 (3 Low) | 9 (1 Low) | 2 (1 Low) | 4 (1 Low) | 6 (1 Low) *2 | 01/03/2026 00:45 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 53 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 01/03/2026 06:00 |
| Leicester University Timeseries Graph |
75 (3 Low) | 30 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 01/03/2026 07:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 33 (1 Low) | n/m | n/m | n/m | 28/02/2026 22:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 8 (1 Low) *2 | 01/03/2026 04:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 9 (1 Low) *2 | 01/03/2026 01:00 |
| Northampton Spring Park Timeseries Graph |
78 (3 Low) | 22 (1 Low) | n/m | 9 (1 Low) | n/m | 01/03/2026 19:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 8 (1 Low) *2 | 01/03/2026 18:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
60 (2 Low) | 47 (1 Low) | 1 (1 Low) | 7 (1 Low) | 11 (1 Low) *2 | 28/02/2026 21:15 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 62 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 01/03/2026 06:00 |
| Tallington Timeseries Graph |
79 (3 Low) | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 01/03/2026 20:00 |
| Toft Newton Timeseries Graph |
83 (3 Low) | 15 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 01/03/2026 10:00 |
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/m | 47 (1 Low) | n/m | 6 (1 Low) | 9 (1 Low) *2 | 01/03/2026 20:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 01/03/2026 20:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 35 (1 Low) | n/m | n/m | n/m | 28/02/2026 21:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 42 (1 Low) | n/m | 5 (1 Low) | n/m | 01/03/2026 01:00 |
| Norwich Lakenfields Timeseries Graph |
64 (2 Low) | 22 (1 Low) | n/m | 6 (1 Low) | 8 (1 Low) *2 | 01/03/2026 13:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 01/03/2026 19:00 |
| Sibton Timeseries Graph |
70 (3 Low) | n/m | n/m | 5 (1 Low) | 7 (1 Low) *2 | 01/03/2026 20:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 01/03/2026 21:00 |
| Southend-on-Sea Timeseries Graph |
70 (3 Low) | 10 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 01/03/2026 11:00 |
| St Osyth Timeseries Graph |
79 (3 Low) | 12 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 01/03/2026 21:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/a | n/a | 23/02/2026 13:00 |
| Thurrock Timeseries Graph |
71 (3 Low) | 17 (1 Low) | 1 (1 Low) | 5 (1 Low) | 8 (1 Low) *2 | 28/02/2026 21:30 |
| Weybourne Timeseries Graph |
79 (3 Low) | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 01/03/2026 11:00 |
| Wicken Fen Timeseries Graph |
64 (2 Low) | 11 (1 Low) | 3 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 01/03/2026 11:15 |
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/m | 29 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *1 | 01/03/2026 17:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 15 (1 Low) *1 | 01/03/2026 07:00 |
| Haringey Roadside Timeseries Graph |
n/m | 53 (1 Low) | n/m | n/m | n/m | 28/02/2026 22:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | n/m | 01/03/2026 10:00 |
| London Bexley Timeseries Graph |
n/m | 19 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 01/03/2026 10:00 |
| London Bloomsbury Timeseries Graph |
67 (3 Low) | 25 (1 Low) | 2 (1 Low) | 6 (1 Low) | 10 (1 Low) *2 | 28/02/2026 22:15 |
| London Farringdon Street Timeseries Graph |
n/m | 42 (1 Low) | n/m | 6 (1 Low) | n/m | 01/03/2026 10:00 |
| London Haringey Priory Park South Timeseries Graph |
75 (3 Low) | 25 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 01/03/2026 20:00 |
| London Harlington Timeseries Graph |
73 (3 Low) | 58 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/03/2026 19:00 |
| London Hillingdon Timeseries Graph |
55 (2 Low) | 60 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/03/2026 19:00 |
| London Honor Oak Park Timeseries Graph |
80 (3 Low) | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 01/03/2026 10:00 |
| London Marylebone Road Timeseries Graph |
59 (2 Low) | 53 (1 Low) | 3 (1 Low) | 20 (2 Low) | 15 (1 Low) *1 | 28/02/2026 22:30 |
| London N. Kensington Timeseries Graph |
81 (3 Low) | 18 (1 Low) | 2 (1 Low) | 5 (1 Low) | 8 (1 Low) *2 | 01/03/2026 13:30 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 01/03/2026 18:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 01/03/2026 18:00 |
| London Westminster Timeseries Graph |
70 (3 Low) | 20 (1 Low) | n/m | n/m | n/m | 01/03/2026 18:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 72 (2 Low) | n/m | n/m | 12 (1 Low) *1 | 28/02/2026 22:00 |
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 |
73 (3 Low) | 17 (1 Low) | n/m | n/m | n/m | 28/02/2026 24:00 |
| Inverness Timeseries Graph |
n/m | 49 (1 Low) | n/m | 6 (1 Low) | 18 (2 Low) *2 | 01/03/2026 10:00 |
| Lerwick Timeseries Graph |
85 (3 Low) | n/m | n/m | n/m | n/m | 01/03/2026 12:00 |
| Strathvaich Timeseries Graph |
84 (3 Low) | n/m | n/m | n/m | n/m | 01/03/2026 18:00 |
North East
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Hartlepool St Abbs Walk Timeseries Graph |
71 (3 Low) | 26 (1 Low) | n/m | 9 (1 Low) | 19 (2 Low) *2 | 28/02/2026 24:00 |
| Kielder Water Timeseries Graph |
67 (3 Low) | n/m | n/m | 3 (1 Low) | 6 (1 Low) *2 | 28/02/2026 24:00 |
| Middlesbrough Timeseries Graph |
75 (3 Low) | 14 (1 Low) | 2 (1 Low) | 6 (1 Low) | 18 (2 Low) *1 | 01/03/2026 18:15 |
| Newcastle Centre Timeseries Graph |
64 (2 Low) | 42 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) *1 | 01/03/2026 15:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 61 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 01/03/2026 13:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 14 (1 Low) *2 | 28/02/2026 24:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 14 (1 Low) | n/m | 6 (1 Low) | n/m | 28/02/2026 24:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 9 (1 Low) | n/m | 7 (1 Low) | 23 (2 Low) *1 | 01/03/2026 03:00 |
| Sunderland Silksworth Timeseries Graph |
70 (3 Low) | 9 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 28/02/2026 24:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 14 (1 Low) | n/m | 7 (1 Low) | n/m | 28/02/2026 24:00 |
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 |
69 (3 Low) | 27 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 01/03/2026 21:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 28/02/2026 23:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 31/01/2026 16:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/m | n/m | 28/02/2026 23:00 |
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 |
81 (3 Low) | 3 (1 Low) | n/m | n/m | n/m | 01/03/2026 20:00 |
| Wrexham Timeseries Graph |
n/m | 11 (1 Low) | 1 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 28/02/2026 19:45 |
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/m | 14 (1 Low) | n/m | 6 (1 Low) | n/m | 28/02/2026 24:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 45 (1 Low) | n/m | n/m | n/m | 28/02/2026 22:00 |
| Blackburn Audley Park Timeseries Graph |
75 (3 Low) | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 28/02/2026 24:00 |
| Blackpool Marton Timeseries Graph |
74 (3 Low) | 17 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 28/02/2026 24:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 28/02/2026 24:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 35 (1 Low) | n/m | n/m | 18 (2 Low) *1 | 28/02/2026 22:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 12 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *1 | 01/03/2026 03:00 |
| Crewe Coppenhall Timeseries Graph |
73 (3 Low) | 15 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 28/02/2026 24:00 |
| Glazebury Timeseries Graph |
76 (3 Low) | 10 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 28/02/2026 24:00 |
| Liverpool Speke Timeseries Graph |
70 (3 Low) | 23 (1 Low) | 21 (1 Low) | 5 (1 Low) | 14 (1 Low) *1 | 01/03/2026 21:00 |
| Liverpool Thirlmere Park Timeseries Graph |
68 (3 Low) | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 28/02/2026 24:00 |
| Manchester Piccadilly Timeseries Graph |
63 (2 Low) | 45 (1 Low) | 1 (1 Low) | 8 (1 Low) | 13 (1 Low) *2 | 01/03/2026 10:30 |
| Manchester Sharston Timeseries Graph |
76 (3 Low) | 15 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 28/02/2026 24:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 28/02/2026 24:00 |
| Preston Timeseries Graph |
69 (3 Low) | 30 (1 Low) | n/m | 6 (1 Low) | 9 (1 Low) *2 | 28/02/2026 24:00 |
| Salford Eccles Timeseries Graph |
75 (3 Low) | 20 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 28/02/2026 24:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 26 (1 Low) | n/m | n/m | n/m | 28/02/2026 22:00 |
| St Helens Linkway Timeseries Graph |
n/m | 76 (2 Low) | n/m | n/m | 18 (2 Low) *1 | 28/02/2026 19:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | n/m | 28/02/2026 24:00 |
| Warrington Timeseries Graph |
n/m | 19 (1 Low) | n/m | 4 (1 Low) | 14 (1 Low) *1 | 28/02/2026 24:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 01/03/2026 15:00 |
| Wigan Centre Timeseries Graph |
71 (3 Low) | 35 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 01/03/2026 17:00 |
| Wirral Tranmere Timeseries Graph |
72 (3 Low) | 8 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 28/02/2026 24:00 |
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/m | 17 (1 Low) | n/m | n/m | 18 (2 Low) *1 | 01/03/2026 15:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | n/m | 28/02/2026 22:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 10 (1 Low) | 34 (1 Low) | n/m | n/m | 28/02/2026 21:30 |
| Belfast Centre Timeseries Graph |
71 (3 Low) | 28 (1 Low) | 1 (1 Low) | 7 (1 Low) | 13 (1 Low) *2 | 01/03/2026 08:30 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | 28 (2 Low) *1 | 01/03/2026 15:00 |
| Derry Rosemount Timeseries Graph |
72 (3 Low) | 8 (1 Low) | 6 (1 Low) | 5 (1 Low) | 11 (1 Low) *1 | 28/02/2026 21:45 |
| Lough Navar Timeseries Graph |
65 (2 Low) | n/m | n/m | 3 (1 Low) | 6 (1 Low) *2 | 01/03/2026 07:00 |
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/m | 6 (1 Low) | n/m | n/m | n/m | 28/02/2026 22:00 |
| Eskdalemuir Timeseries Graph |
79 (3 Low) | 3 (1 Low) | n/m | n/m | n/m | 01/03/2026 21:00 |
| Peebles Timeseries Graph |
84 (3 Low) | 6 (1 Low) | n/m | n/m | n/m | 01/03/2026 21:00 |
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/m | n/m | n/m | 5 (1 Low) | n/m | 01/03/2026 08:00 |
| Brighton Preston Park Timeseries Graph |
78 (3 Low) | 10 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 01/03/2026 21:00 |
| Chatham Roadside Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/a | n/a | 25/02/2026 01:00 |
| Chilbolton Observatory Timeseries Graph |
86 (3 Low) | 7 (1 Low) | 1 (1 Low) | 5 (1 Low) | 8 (1 Low) *2 | 28/02/2026 22:45 |
| Eastbourne Timeseries Graph |
83 (3 Low) | 7 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/03/2026 16:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 01/03/2026 18:00 |
| Horley Timeseries Graph |
n/m | 22 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/03/2026 17:00 |
| Lullington Heath Timeseries Graph |
90 (3 Low) | 6 (1 Low) | 2 (1 Low) | 6 (1 Low) | 11 (1 Low) *2 | 01/03/2026 09:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 17 (2 Low) *2 | 01/03/2026 10:00 |
| Milton Keynes Civic Centre Timeseries Graph |
77 (3 Low) | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 01/03/2026 08:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 67 (1 Low) | n/m | n/m | n/m | 01/03/2026 10:00 |
| Oxford St Ebbes Timeseries Graph |
75 (3 Low) | 31 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 01/03/2026 07:00 |
| Portsmouth Timeseries Graph |
83 (3 Low) | 16 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 01/03/2026 16:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 35 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 01/03/2026 16:00 |
| Reading London Road Timeseries Graph |
n/m | 16 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 28/02/2026 22:00 |
| Reading New Town Timeseries Graph |
70 (3 Low) | 19 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 01/03/2026 18:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 01/03/2026 18:00 |
| Rochester Stoke Timeseries Graph |
76 (3 Low) | 12 (1 Low) | 1 (1 Low) | 5 (1 Low) | 9 (1 Low) *2 | 01/03/2026 09:15 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 11 (1 Low) *2 | 01/03/2026 18:00 |
| Southampton A33 Timeseries Graph |
n/m | 33 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 01/03/2026 17:00 |
| Southampton Centre Timeseries Graph |
75 (3 Low) | 27 (1 Low) | 3 (1 Low) | 7 (1 Low) | 13 (1 Low) *2 | 01/03/2026 01:30 |
| Storrington Roadside Timeseries Graph |
n/m | 10 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/03/2026 19:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 28 (1 Low) | n/m | 10 (1 Low) | n/m | 01/03/2026 02:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 18 (2 Low) *2 | 01/03/2026 21:00 |
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 |
73 (3 Low) | 27 (1 Low) | 1 (1 Low) | 7 (1 Low) | 10 (1 Low) *1 | 28/02/2026 21:15 |
| Cardiff Newport Road Timeseries Graph |
n/m | 18 (1 Low) | n/m | n/m | 11 (1 Low) *1 | 01/03/2026 06:00 |
| Chepstow A48 Timeseries Graph |
n/m | 52 (1 Low) | n/m | 8 (1 Low) | n/a | 01/03/2026 01:00 |
| Cwmbran Crownbridge Timeseries Graph |
82 (3 Low) | 29 (1 Low) | n/m | n/m | n/m | 01/03/2026 20:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 47 (1 Low) | n/m | n/m | n/m | 01/03/2026 07:00 |
| Narberth Timeseries Graph |
83 (3 Low) | 3 (1 Low) | 1 (1 Low) | n/a | n/a | 01/03/2026 01:30 |
| Newport Timeseries Graph |
n/m | 10 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 01/03/2026 17:00 |
| Port Talbot Margam Timeseries Graph |
76 (3 Low) | 17 (1 Low) | 2 (1 Low) | 4 (1 Low) | 15 (1 Low) *3 | 28/02/2026 21:15 |
| Swansea Roadside Timeseries Graph |
n/m | 17 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *1 | 01/03/2026 01:00 |
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/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 28/02/2026 24:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 27/02/2026 22:00 |
| Bournemouth Timeseries Graph |
n/a | 6 (1 Low) | n/m | 8 (1 Low) | n/m | 01/03/2026 17:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 01/03/2026 18:00 |
| Bristol St Paul's Timeseries Graph |
73 (3 Low) | 48 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *1 | 01/03/2026 18:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 60 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 28/02/2026 24:00 |
| Charlton Mackrell Timeseries Graph |
80 (3 Low) | 13 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 01/03/2026 18:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 01/03/2026 01:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 6 (1 Low) | n/m | 7 (1 Low) | n/m | 01/03/2026 20:00 |
| Exeter Roadside Timeseries Graph |
80 (3 Low) | 15 (1 Low) | n/m | n/m | n/m | 01/03/2026 21:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 28/02/2026 24:00 |
| Honiton Timeseries Graph |
82 (3 Low) | 5 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 01/03/2026 21:00 |
| Plymouth Centre Timeseries Graph |
83 (3 Low) | 9 (1 Low) | n/m | 10 (1 Low) | 33 (2 Low) *2 | 01/03/2026 21:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 9 (1 Low) | n/m | n/m | n/m | 28/02/2026 21:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 20 (2 Low) *1 | 01/03/2026 21:00 |
| Swindon Walcot Timeseries Graph |
78 (3 Low) | 4 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 01/03/2026 03:00 |
| Yarner Wood Timeseries Graph |
n/a | 5 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 01/03/2026 16:00 |
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 |
99 (3 Low) | n/m | n/m | n/m | n/m | 28/02/2026 21:00 |
West Midlands
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Birmingham A4540 Roadside Timeseries Graph |
69 (3 Low) | 58 (1 Low) | n/m | 7 (1 Low) | 15 (1 Low) *2 | 01/03/2026 04:00 |
| Birmingham Hall Green Timeseries Graph |
83 (3 Low) | 18 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 01/03/2026 04:00 |
| Birmingham Ladywood Timeseries Graph |
85 (3 Low) | 21 (1 Low) | 1 (1 Low) | 5 (1 Low) | 8 (1 Low) *2 | 01/03/2026 11:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 9 (1 Low) *2 | 01/03/2026 04:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
74 (3 Low) | 56 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) *2 | 01/03/2026 04:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 20 (1 Low) | n/m | 6 (1 Low) | n/m | 01/03/2026 03:00 |
| Coventry Allesley Timeseries Graph |
75 (3 Low) | 27 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 01/03/2026 05:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 36 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 01/03/2026 06:00 |
| Leamington Spa Timeseries Graph |
81 (3 Low) | 29 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 01/03/2026 06:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 22 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 01/03/2026 06:00 |
| Leominster Timeseries Graph |
79 (3 Low) | 15 (1 Low) | n/m | n/m | n/m | 01/03/2026 21:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 29 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 28/02/2026 24:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 28/02/2026 24:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 35 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 28/02/2026 24:00 |
| Stoke-on-Trent Centre Timeseries Graph |
68 (3 Low) | 43 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 28/02/2026 24:00 |
| Telford Hollinswood Timeseries Graph |
n/a | 22 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 28/02/2026 24:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 12 (1 Low) *2 | 01/03/2026 03:00 |
| Walsall Woodlands Timeseries Graph |
84 (3 Low) | 25 (1 Low) | n/m | n/m | n/m | 01/03/2026 21:00 |
| West Bromwich Kenrick Park Timeseries Graph |
78 (3 Low) | 12 (1 Low) | n/m | n/m | n/m | 01/03/2026 21:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 28/02/2026 24:00 |
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 |
80 (3 Low) | 23 (1 Low) | 6 (1 Low) | 6 (1 Low) | 9 (1 Low) *2 | 28/02/2026 22:30 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 46 (1 Low) | n/m | n/m | n/m | 28/02/2026 24:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 17 (2 Low) *2 | 01/03/2026 01:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
72 (3 Low) | 73 (2 Low) | n/m | 9 (1 Low) | 13 (1 Low) *2 | 01/03/2026 08:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 46 (1 Low) | n/m | 6 (1 Low) | n/m | 01/03/2026 12:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 11 (1 Low) *2 | 01/03/2026 10:00 |
| High Muffles Timeseries Graph |
68 (3 Low) | 9 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 01/03/2026 07:00 |
| Hull Freetown Timeseries Graph |
68 (3 Low) | 43 (1 Low) | 5 (1 Low) | 5 (1 Low) | 9 (1 Low) *2 | 01/03/2026 11:15 |
| Hull Holderness Road Timeseries Graph |
n/m | 44 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 01/03/2026 12:00 |
| Immingham Woodlands Avenue Timeseries Graph |
76 (3 Low) | 13 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 01/03/2026 10:00 |
| Leeds Centre Timeseries Graph |
64 (2 Low) | 56 (1 Low) | 6 (1 Low) | 9 (1 Low) | 14 (1 Low) *2 | 28/02/2026 23:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 66 (1 Low) | n/m | 11 (1 Low) | 25 (2 Low) *1 | 01/03/2026 13:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 10 (1 Low) *2 | 01/03/2026 19:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 22 (1 Low) | 2 (1 Low) | 9 (1 Low) | 10 (1 Low) *1 | 01/03/2026 17:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 68 (2 Low) | n/m | 9 (1 Low) | n/m | 01/03/2026 09:00 |
| Sheffield Devonshire Green Timeseries Graph |
69 (3 Low) | 46 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 01/03/2026 18:00 |
| Sheffield Tinsley Timeseries Graph |
63 (2 Low) | 53 (1 Low) | n/m | 6 (1 Low) | 9 (1 Low) *2 | 01/03/2026 02:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 14 (1 Low) *2 | 01/03/2026 09:00 |
| York Bootham Timeseries Graph |
62 (2 Low) | 29 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *1 | 01/03/2026 11:00 |
| York Fishergate Timeseries Graph |
n/m | 37 (1 Low) | n/m | 5 (1 Low) | 20 (2 Low) *1 | 01/03/2026 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