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 7pm Sat 28th Feb 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 |
67 (3 Low) | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 27/02/2026 24:00 |
| Bush Estate Timeseries Graph |
83 (3 Low) | 12 (1 Low) | n/m | n/m | n/m | 27/02/2026 03:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 48 (1 Low) | n/m | n/m | n/m | 27/02/2026 22:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 51 (1 Low) | n/m | n/m | n/m | 27/02/2026 17:00 |
| Edinburgh St Leonards Timeseries Graph |
74 (3 Low) | 20 (1 Low) | 4 (1 Low) | 6 (1 Low) | 12 (1 Low) *2 | 28/02/2026 01:15 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 55 (1 Low) | n/m | n/m | n/m | 28/02/2026 01:00 |
| Glasgow High Street Timeseries Graph |
n/m | 38 (1 Low) | n/m | 7 (1 Low) | 18 (2 Low) *2 | 27/02/2026 24:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 73 (2 Low) | n/m | n/m | n/m | 28/02/2026 19:00 |
| Glasgow Townhead Timeseries Graph |
79 (3 Low) | 24 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 27/02/2026 24:00 |
| Grangemouth Timeseries Graph |
n/m | 27 (1 Low) | 2 (1 Low) | 6 (1 Low) | 14 (1 Low) *1 | 27/02/2026 20:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | n/m | 27/02/2026 21:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 40 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 27/02/2026 24:00 |
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 |
73 (3 Low) | 15 (1 Low) | n/m | 6 (1 Low) | 8 (1 Low) *2 | 28/02/2026 12:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 27 (1 Low) | n/m | 6 (1 Low) | 9 (1 Low) *2 | 28/02/2026 12:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 75 (2 Low) | n/m | 5 (1 Low) | n/m | 28/02/2026 19:00 |
| Derby Stockbrook Park Timeseries Graph |
66 (2 Low) | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 28/02/2026 19:00 |
| Ladybower Timeseries Graph |
77 (3 Low) | 5 (1 Low) | 1 (1 Low) | 5 (1 Low) | 7 (1 Low) *2 | 28/02/2026 11:30 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 86 (2 Low) | n/m | 5 (1 Low) | 7 (1 Low) *2 | 28/02/2026 19:00 |
| Leicester University Timeseries Graph |
60 (2 Low) | 63 (1 Low) | n/m | 4 (1 Low) | 5 (1 Low) *2 | 28/02/2026 16:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 43 (1 Low) | n/m | n/m | n/m | 28/02/2026 18:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 5 (1 Low) *2 | 28/02/2026 02:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 8 (1 Low) *2 | 28/02/2026 19:00 |
| Northampton Spring Park Timeseries Graph |
65 (2 Low) | 28 (1 Low) | n/m | 8 (1 Low) | n/m | 28/02/2026 16:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 28/02/2026 14:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
63 (2 Low) | 43 (1 Low) | 1 (1 Low) | 5 (1 Low) | 7 (1 Low) *2 | 28/02/2026 19:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 84 (2 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 28/02/2026 13:00 |
| Tallington Timeseries Graph |
80 (3 Low) | n/m | n/m | 3 (1 Low) | 4 (1 Low) *2 | 28/02/2026 17:00 |
| Toft Newton Timeseries Graph |
90 (3 Low) | 6 (1 Low) | n/m | 5 (1 Low) | 6 (1 Low) *2 | 28/02/2026 16:00 |
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 | 23 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 28/02/2026 12:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 7 (1 Low) *2 | 28/02/2026 19:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 47 (1 Low) | n/m | n/m | n/m | 28/02/2026 18:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 50 (1 Low) | n/m | 6 (1 Low) | n/m | 28/02/2026 18:00 |
| Norwich Lakenfields Timeseries Graph |
63 (2 Low) | 13 (1 Low) | n/m | 5 (1 Low) | 7 (1 Low) *2 | 28/02/2026 07:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 4 (1 Low) *2 | 28/02/2026 19:00 |
| Sibton Timeseries Graph |
73 (3 Low) | n/m | n/m | 5 (1 Low) | 7 (1 Low) *2 | 28/02/2026 04:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 27/02/2026 24:00 |
| Southend-on-Sea Timeseries Graph |
67 (3 Low) | 18 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 28/02/2026 19:00 |
| St Osyth Timeseries Graph |
76 (3 Low) | 8 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 28/02/2026 01:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 23 (1 Low) | n/m | n/a | n/a | 23/02/2026 13:00 |
| Thurrock Timeseries Graph |
60 (2 Low) | 45 (1 Low) | 1 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 27/02/2026 21:45 |
| Weybourne Timeseries Graph |
79 (3 Low) | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 28/02/2026 18:00 |
| Wicken Fen Timeseries Graph |
65 (2 Low) | 9 (1 Low) | 3 (1 Low) | 4 (1 Low) | 6 (1 Low) *2 | 28/02/2026 14:15 |
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 | 30 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *1 | 28/02/2026 19:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 14 (1 Low) *1 | 28/02/2026 13:00 |
| Haringey Roadside Timeseries Graph |
n/m | 49 (1 Low) | n/m | n/m | n/m | 27/02/2026 21:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 28/02/2026 19:00 |
| London Bexley Timeseries Graph |
n/m | 21 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 28/02/2026 18:00 |
| London Bloomsbury Timeseries Graph |
61 (2 Low) | 36 (1 Low) | 2 (1 Low) | 5 (1 Low) | 8 (1 Low) *2 | 27/02/2026 23:15 |
| London Farringdon Street Timeseries Graph |
n/m | 42 (1 Low) | n/m | 6 (1 Low) | n/m | 28/02/2026 18:00 |
| London Haringey Priory Park South Timeseries Graph |
71 (3 Low) | 23 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 28/02/2026 17:00 |
| London Harlington Timeseries Graph |
69 (3 Low) | 72 (2 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 28/02/2026 17:00 |
| London Hillingdon Timeseries Graph |
62 (2 Low) | 62 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 28/02/2026 02:00 |
| London Honor Oak Park Timeseries Graph |
77 (3 Low) | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 28/02/2026 17:00 |
| London Marylebone Road Timeseries Graph |
60 (2 Low) | 58 (1 Low) | 3 (1 Low) | 17 (2 Low) | 11 (1 Low) *1 | 27/02/2026 19:30 |
| London N. Kensington Timeseries Graph |
73 (3 Low) | 21 (1 Low) | 2 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 27/02/2026 21:15 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 28/02/2026 17:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 28/02/2026 17:00 |
| London Westminster Timeseries Graph |
64 (2 Low) | 28 (1 Low) | n/m | n/m | n/m | 28/02/2026 09:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 64 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 27/02/2026 20:00 |
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 |
69 (3 Low) | 33 (1 Low) | n/m | n/m | n/m | 27/02/2026 20:00 |
| Inverness Timeseries Graph |
n/m | 61 (1 Low) | n/m | 7 (1 Low) | 17 (2 Low) *2 | 28/02/2026 18:00 |
| Lerwick Timeseries Graph |
91 (3 Low) | n/m | n/m | n/m | n/m | 27/02/2026 21:00 |
| Strathvaich Timeseries Graph |
93 (3 Low) | n/m | n/m | n/m | n/m | 27/02/2026 20:00 |
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 |
84 (3 Low) | 30 (1 Low) | n/m | 10 (1 Low) | 23 (2 Low) *2 | 28/02/2026 11:00 |
| Kielder Water Timeseries Graph |
65 (2 Low) | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 27/02/2026 24:00 |
| Middlesbrough Timeseries Graph |
79 (3 Low) | 21 (1 Low) | 2 (1 Low) | 5 (1 Low) | 22 (2 Low) *1 | 28/02/2026 15:15 |
| Newcastle Centre Timeseries Graph |
70 (3 Low) | 45 (1 Low) | n/m | 8 (1 Low) | 22 (2 Low) *1 | 28/02/2026 09:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 85 (2 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 28/02/2026 08:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 16 (1 Low) *2 | 28/02/2026 12:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 37 (1 Low) | n/m | 7 (1 Low) | n/m | 28/02/2026 10:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 22 (1 Low) | n/m | 9 (1 Low) | 34 (3 Low) *1 | 28/02/2026 11:00 |
| Sunderland Silksworth Timeseries Graph |
81 (3 Low) | 17 (1 Low) | n/m | 8 (1 Low) | 16 (1 Low) *2 | 28/02/2026 10:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 25 (1 Low) | n/m | 10 (1 Low) | n/m | 28/02/2026 09:00 |
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 |
74 (3 Low) | 57 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 28/02/2026 02:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 53 (1 Low) | n/m | n/m | n/m | 28/02/2026 12:00 |
| 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 | 54 (1 Low) | n/m | n/m | n/m | 27/02/2026 20:00 |
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 |
82 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 28/02/2026 17:00 |
| Wrexham Timeseries Graph |
n/m | 24 (1 Low) | 2 (1 Low) | 6 (1 Low) | 11 (1 Low) *2 | 27/02/2026 08:45 |
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 | 24 (1 Low) | n/m | 8 (1 Low) | n/m | 28/02/2026 13:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 50 (1 Low) | n/m | n/m | n/m | 28/02/2026 18:00 |
| Blackburn Audley Park Timeseries Graph |
68 (3 Low) | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 28/02/2026 10:00 |
| Blackpool Marton Timeseries Graph |
74 (3 Low) | 28 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 28/02/2026 11:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 28/02/2026 11:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 65 (1 Low) | n/m | n/m | 17 (2 Low) *1 | 28/02/2026 19:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 27 (1 Low) | n/m | 5 (1 Low) | 21 (2 Low) *1 | 27/02/2026 24:00 |
| Crewe Coppenhall Timeseries Graph |
67 (3 Low) | 35 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 28/02/2026 12:00 |
| Glazebury Timeseries Graph |
75 (3 Low) | 19 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) *2 | 28/02/2026 07:00 |
| Liverpool Speke Timeseries Graph |
73 (3 Low) | 22 (1 Low) | 2 (1 Low) | 8 (1 Low) | 19 (2 Low) *1 | 28/02/2026 17:30 |
| Liverpool Thirlmere Park Timeseries Graph |
67 (3 Low) | n/m | n/m | 7 (1 Low) | 13 (1 Low) *2 | 28/02/2026 13:00 |
| Manchester Piccadilly Timeseries Graph |
63 (2 Low) | 50 (1 Low) | 1 (1 Low) | 11 (1 Low) | 19 (2 Low) *2 | 27/02/2026 21:15 |
| Manchester Sharston Timeseries Graph |
60 (2 Low) | 49 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 28/02/2026 09:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 28/02/2026 11:00 |
| Preston Timeseries Graph |
62 (2 Low) | 50 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 28/02/2026 11:00 |
| Salford Eccles Timeseries Graph |
72 (3 Low) | 39 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 28/02/2026 07:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 68 (2 Low) | n/m | n/m | n/m | 28/02/2026 19:00 |
| St Helens Linkway Timeseries Graph |
n/m | 56 (1 Low) | n/m | n/m | 20 (2 Low) *1 | 28/02/2026 18:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | n/m | 28/02/2026 19:00 |
| Warrington Timeseries Graph |
n/m | 41 (1 Low) | n/m | 7 (1 Low) | 17 (2 Low) *1 | 28/02/2026 07:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 61 (1 Low) | n/m | n/m | n/m | 28/02/2026 18:00 |
| Wigan Centre Timeseries Graph |
71 (3 Low) | 35 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *2 | 28/02/2026 06:00 |
| Wirral Tranmere Timeseries Graph |
71 (3 Low) | 22 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 28/02/2026 13:00 |
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 | 55 (1 Low) | n/m | n/m | 34 (3 Low) *1 | 27/02/2026 20:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 59 (1 Low) | n/m | n/m | n/m | 27/02/2026 22:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 47 (1 Low) | 34 (1 Low) | n/m | n/m | 28/02/2026 19:00 |
| Belfast Centre Timeseries Graph |
67 (3 Low) | 46 (1 Low) | 1 (1 Low) | 11 (1 Low) | 21 (2 Low) *2 | 28/02/2026 10:30 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 55 (1 Low) | n/m | n/m | 32 (2 Low) *1 | 28/02/2026 09:00 |
| Derry Rosemount Timeseries Graph |
76 (3 Low) | 38 (1 Low) | 20 (1 Low) | 9 (1 Low) | 16 (1 Low) *1 | 27/02/2026 20:30 |
| Lough Navar Timeseries Graph |
71 (3 Low) | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 28/02/2026 01:00 |
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 | 32 (1 Low) | n/m | n/m | n/m | 28/02/2026 11:00 |
| Eskdalemuir Timeseries Graph |
70 (3 Low) | 1 (1 Low) | n/m | n/m | n/m | 28/02/2026 14:00 |
| Peebles Timeseries Graph |
70 (3 Low) | 20 (1 Low) | n/m | n/m | n/m | 28/02/2026 18:00 |
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 | 28/02/2026 19:00 |
| Brighton Preston Park Timeseries Graph |
72 (3 Low) | 26 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 27/02/2026 24:00 |
| Chatham Roadside Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/a | n/a | 25/02/2026 01:00 |
| Chilbolton Observatory Timeseries Graph |
86 (3 Low) | 8 (1 Low) | 2 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 28/02/2026 01:30 |
| Eastbourne Timeseries Graph |
82 (3 Low) | 20 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 27/02/2026 24:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 28/02/2026 16:00 |
| Horley Timeseries Graph |
n/m | 32 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 27/02/2026 24:00 |
| Lullington Heath Timeseries Graph |
88 (3 Low) | 19 (1 Low) | 2 (1 Low) | 6 (1 Low) | 9 (1 Low) *2 | 28/02/2026 18:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 12 (1 Low) *2 | 28/02/2026 19:00 |
| Milton Keynes Civic Centre Timeseries Graph |
62 (2 Low) | n/m | n/m | 5 (1 Low) | 7 (1 Low) *2 | 28/02/2026 18:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 38 (1 Low) | n/m | n/m | n/m | 28/02/2026 01:00 |
| Oxford St Ebbes Timeseries Graph |
69 (3 Low) | 24 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 28/02/2026 16:00 |
| Portsmouth Timeseries Graph |
84 (3 Low) | 13 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 27/02/2026 24:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 32 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 27/02/2026 24:00 |
| Reading London Road Timeseries Graph |
n/m | 35 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 28/02/2026 01:00 |
| Reading New Town Timeseries Graph |
68 (3 Low) | 22 (1 Low) | n/m | 5 (1 Low) | 7 (1 Low) *2 | 28/02/2026 16:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 28/02/2026 16:00 |
| Rochester Stoke Timeseries Graph |
74 (3 Low) | 9 (1 Low) | 1 (1 Low) | 4 (1 Low) | 6 (1 Low) *2 | 28/02/2026 02:45 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 28/02/2026 16:00 |
| Southampton A33 Timeseries Graph |
n/m | 45 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 27/02/2026 24:00 |
| Southampton Centre Timeseries Graph |
71 (3 Low) | 38 (1 Low) | 3 (1 Low) | 6 (1 Low) | 11 (1 Low) *2 | 27/02/2026 19:15 |
| Storrington Roadside Timeseries Graph |
n/m | 19 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 27/02/2026 24:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 39 (1 Low) | n/m | 10 (1 Low) | n/m | 28/02/2026 06:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 19 (2 Low) *2 | 27/02/2026 24:00 |
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) | 20 (1 Low) | 1 (1 Low) | 7 (1 Low) | 8 (1 Low) *1 | 27/02/2026 22:15 |
| Cardiff Newport Road Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | 9 (1 Low) *1 | 28/02/2026 19:00 |
| Chepstow A48 Timeseries Graph |
n/m | 43 (1 Low) | n/m | 6 (1 Low) | 7 (1 Low) *1 | 28/02/2026 16:00 |
| Cwmbran Crownbridge Timeseries Graph |
84 (3 Low) | 10 (1 Low) | n/m | n/m | n/m | 28/02/2026 18:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 60 (1 Low) | n/m | n/m | n/m | 28/02/2026 09:00 |
| Narberth Timeseries Graph |
81 (3 Low) | 4 (1 Low) | 2 (1 Low) | n/a | n/a | 28/02/2026 09:15 |
| Newport Timeseries Graph |
n/m | 13 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 28/02/2026 19:00 |
| Port Talbot Margam Timeseries Graph |
77 (3 Low) | 27 (1 Low) | 2 (1 Low) | 3 (1 Low) | 12 (1 Low) *3 | 28/02/2026 12:30 |
| Swansea Roadside Timeseries Graph |
n/m | 32 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *1 | 28/02/2026 18:00 |
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 19:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 39 (1 Low) | n/m | n/m | n/m | 27/02/2026 22:00 |
| Bournemouth Timeseries Graph |
n/a | 8 (1 Low) | n/m | 8 (1 Low) | n/m | 28/02/2026 11:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 28/02/2026 15:00 |
| Bristol St Paul's Timeseries Graph |
76 (3 Low) | 41 (1 Low) | n/m | 5 (1 Low) | 13 (1 Low) *1 | 28/02/2026 16:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 54 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 28/02/2026 18:00 |
| Charlton Mackrell Timeseries Graph |
77 (3 Low) | 7 (1 Low) | n/m | 6 (1 Low) | 9 (1 Low) *2 | 28/02/2026 14:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 28/02/2026 19:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 9 (1 Low) | n/m | 6 (1 Low) | n/m | 27/02/2026 24:00 |
| Exeter Roadside Timeseries Graph |
73 (3 Low) | 32 (1 Low) | n/m | n/m | n/m | 28/02/2026 18:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 8 (1 Low) *2 | 28/02/2026 15:00 |
| Honiton Timeseries Graph |
83 (3 Low) | 11 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 28/02/2026 13:00 |
| Plymouth Centre Timeseries Graph |
75 (3 Low) | 180 (3 Low) | n/m | 9 (1 Low) | 32 (2 Low) *2 | 28/02/2026 12:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 44 (1 Low) | n/m | n/m | n/m | 27/02/2026 20:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 15 (1 Low) *1 | 28/02/2026 11:00 |
| Swindon Walcot Timeseries Graph |
76 (3 Low) | 14 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 28/02/2026 15:00 |
| Yarner Wood Timeseries Graph |
89 (3 Low) | 4 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 28/02/2026 12:00 |
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 |
95 (3 Low) | n/m | n/m | n/m | n/m | 28/02/2026 18:00 |
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 |
64 (2 Low) | 83 (2 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 28/02/2026 19:00 |
| Birmingham Hall Green Timeseries Graph |
74 (3 Low) | 36 (1 Low) | n/m | 5 (1 Low) | 7 (1 Low) *2 | 28/02/2026 15:00 |
| Birmingham Ladywood Timeseries Graph |
77 (3 Low) | 25 (1 Low) | 1 (1 Low) | 5 (1 Low) | 7 (1 Low) *2 | 28/02/2026 13:45 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 28/02/2026 17:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
67 (3 Low) | 65 (1 Low) | n/m | 6 (1 Low) | 9 (1 Low) *2 | 28/02/2026 19:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | 6 (1 Low) | n/m | 28/02/2026 13:00 |
| Coventry Allesley Timeseries Graph |
71 (3 Low) | 47 (1 Low) | n/m | 5 (1 Low) | 7 (1 Low) *2 | 28/02/2026 16:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 53 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 28/02/2026 17:00 |
| Leamington Spa Timeseries Graph |
71 (3 Low) | 37 (1 Low) | n/m | 5 (1 Low) | 7 (1 Low) *2 | 28/02/2026 17:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 19 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 28/02/2026 18:00 |
| Leominster Timeseries Graph |
79 (3 Low) | 12 (1 Low) | n/m | n/m | n/m | 28/02/2026 18:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 67 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 28/02/2026 19:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 10 (1 Low) *2 | 28/02/2026 12:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 105 (2 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 28/02/2026 14:00 |
| Stoke-on-Trent Centre Timeseries Graph |
50 (2 Low) | 43 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 28/02/2026 13:00 |
| Telford Hollinswood Timeseries Graph |
n/a | 59 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *2 | 28/02/2026 13:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 9 (1 Low) *2 | 28/02/2026 19:00 |
| Walsall Woodlands Timeseries Graph |
73 (3 Low) | 19 (1 Low) | n/m | n/m | n/m | 28/02/2026 03:00 |
| West Bromwich Kenrick Park Timeseries Graph |
71 (3 Low) | 23 (1 Low) | n/m | n/m | n/m | 28/02/2026 04:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 7 (1 Low) *2 | 28/02/2026 13:00 |
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 |
77 (3 Low) | 42 (1 Low) | 4 (1 Low) | 6 (1 Low) | 9 (1 Low) *2 | 28/02/2026 18:30 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 71 (2 Low) | n/m | n/m | n/m | 27/02/2026 19:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 17 (2 Low) *2 | 28/02/2026 08:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
71 (3 Low) | 34 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 28/02/2026 11:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 48 (1 Low) | n/m | 7 (1 Low) | n/m | 28/02/2026 06:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 11 (1 Low) *2 | 28/02/2026 12:00 |
| High Muffles Timeseries Graph |
80 (3 Low) | 2 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 28/02/2026 12:00 |
| Hull Freetown Timeseries Graph |
78 (3 Low) | 39 (1 Low) | 4 (1 Low) | 6 (1 Low) | 10 (1 Low) *2 | 28/02/2026 12:15 |
| Hull Holderness Road Timeseries Graph |
n/m | 23 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 28/02/2026 07:00 |
| Immingham Woodlands Avenue Timeseries Graph |
82 (3 Low) | 16 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 28/02/2026 09:00 |
| Leeds Centre Timeseries Graph |
67 (3 Low) | 28 (1 Low) | 2 (1 Low) | 8 (1 Low) | 12 (1 Low) *2 | 28/02/2026 18:30 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 44 (1 Low) | n/m | 10 (1 Low) | 23 (2 Low) *1 | 28/02/2026 08:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 10 (1 Low) *2 | 28/02/2026 07:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 32 (1 Low) | 3 (1 Low) | 8 (1 Low) | 11 (1 Low) *1 | 28/02/2026 18:15 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 65 (1 Low) | n/m | 8 (1 Low) | n/m | 28/02/2026 13:00 |
| Sheffield Devonshire Green Timeseries Graph |
69 (3 Low) | 35 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 28/02/2026 12:00 |
| Sheffield Tinsley Timeseries Graph |
65 (2 Low) | 52 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 28/02/2026 06:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 12 (1 Low) *2 | 28/02/2026 12:00 |
| York Bootham Timeseries Graph |
63 (2 Low) | 26 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *1 | 28/02/2026 13:00 |
| York Fishergate Timeseries Graph |
n/m | 36 (1 Low) | n/m | 4 (1 Low) | 21 (2 Low) *1 | 28/02/2026 12:00 |
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