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 Fri 27th 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 |
70 (3 Low) | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 27/02/2026 19:00 |
| Bush Estate Timeseries Graph |
83 (3 Low) | 8 (1 Low) | n/m | n/m | n/m | 27/02/2026 03:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 58 (1 Low) | n/m | n/m | n/m | 27/02/2026 19:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 25/02/2026 15:00 |
| Edinburgh St Leonards Timeseries Graph |
76 (3 Low) | 24 (1 Low) | 1 (1 Low) | 6 (1 Low) | 13 (1 Low) *2 | 27/02/2026 01:30 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 48 (1 Low) | n/m | n/m | n/m | 27/02/2026 09:00 |
| Glasgow High Street Timeseries Graph |
n/m | 36 (1 Low) | n/m | 8 (1 Low) | 19 (2 Low) *2 | 27/02/2026 18:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 63 (1 Low) | n/m | n/m | n/m | 27/02/2026 19:00 |
| Glasgow Townhead Timeseries Graph |
79 (3 Low) | 30 (1 Low) | n/m | 7 (1 Low) | 15 (1 Low) *2 | 27/02/2026 19:00 |
| Grangemouth Timeseries Graph |
n/m | 11 (1 Low) | 2 (1 Low) | 6 (1 Low) | 15 (1 Low) *1 | 27/02/2026 17:30 |
| Grangemouth Moray Timeseries Graph |
n/m | 9 (1 Low) | n/m | n/m | n/m | 27/02/2026 10:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 40 (1 Low) | n/m | 7 (1 Low) | 15 (1 Low) *2 | 27/02/2026 18:00 |
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 |
83 (3 Low) | 17 (1 Low) | n/m | 2 (1 Low) | 4 (1 Low) *2 | 27/02/2026 19:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | n/a | n/m | 3 (1 Low) | 5 (1 Low) *2 | 27/02/2026 19:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 52 (1 Low) | n/m | 4 (1 Low) | n/m | 26/02/2026 24:00 |
| Derby Stockbrook Park Timeseries Graph |
70 (3 Low) | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 26/02/2026 24:00 |
| Ladybower Timeseries Graph |
86 (3 Low) | 5 (1 Low) | 1 (1 Low) | 2 (1 Low) | 3 (1 Low) *2 | 27/02/2026 09:45 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 57 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 26/02/2026 24:00 |
| Leicester University Timeseries Graph |
72 (3 Low) | 46 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 26/02/2026 24:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 67 (1 Low) | n/m | n/m | n/m | 27/02/2026 17:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 26/02/2026 24:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 27/02/2026 19:00 |
| Northampton Spring Park Timeseries Graph |
82 (3 Low) | 28 (1 Low) | n/m | 8 (1 Low) | n/m | 26/02/2026 24:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 26/02/2026 24:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
66 (2 Low) | 13 (1 Low) | 1 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 27/02/2026 08:30 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 58 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 26/02/2026 24:00 |
| Tallington Timeseries Graph |
84 (3 Low) | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 26/02/2026 24:00 |
| Toft Newton Timeseries Graph |
90 (3 Low) | 7 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 26/02/2026 24:00 |
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 | 6 (1 Low) | 12 (1 Low) *2 | 26/02/2026 24:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 9 (1 Low) *2 | 26/02/2026 24:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 31 (1 Low) | n/m | n/m | n/m | 27/02/2026 18:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | 5 (1 Low) | n/m | 27/02/2026 01:00 |
| Norwich Lakenfields Timeseries Graph |
75 (3 Low) | 11 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *2 | 26/02/2026 24:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 26/02/2026 24:00 |
| Sibton Timeseries Graph |
80 (3 Low) | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 26/02/2026 24:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 11 (1 Low) *2 | 26/02/2026 24:00 |
| Southend-on-Sea Timeseries Graph |
82 (3 Low) | 15 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 26/02/2026 24:00 |
| St Osyth Timeseries Graph |
92 (3 Low) | 9 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 26/02/2026 24:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 12 (1 Low) | n/m | n/a | n/a | 23/02/2026 13:00 |
| Thurrock Timeseries Graph |
74 (3 Low) | 19 (1 Low) | 2 (1 Low) | 6 (1 Low) | 11 (1 Low) *2 | 27/02/2026 13:45 |
| Weybourne Timeseries Graph |
81 (3 Low) | n/m | n/m | 5 (1 Low) | 7 (1 Low) *2 | 26/02/2026 24:00 |
| Wicken Fen Timeseries Graph |
74 (3 Low) | 9 (1 Low) | 3 (1 Low) | 5 (1 Low) | 8 (1 Low) *2 | 27/02/2026 12:30 |
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 | 36 (1 Low) | n/m | 9 (1 Low) | 19 (2 Low) *1 | 26/02/2026 24:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 32 (2 Low) *1 | 26/02/2026 24:00 |
| Haringey Roadside Timeseries Graph |
n/m | 30 (1 Low) | n/m | n/m | n/m | 27/02/2026 17:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | n/m | 26/02/2026 24:00 |
| London Bexley Timeseries Graph |
n/m | 17 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 26/02/2026 24:00 |
| London Bloomsbury Timeseries Graph |
79 (3 Low) | 17 (1 Low) | 1 (1 Low) | 6 (1 Low) | 12 (1 Low) *2 | 27/02/2026 17:15 |
| London Farringdon Street Timeseries Graph |
n/m | 39 (1 Low) | n/m | 8 (1 Low) | n/m | 27/02/2026 02:00 |
| London Haringey Priory Park South Timeseries Graph |
88 (3 Low) | 13 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 26/02/2026 24:00 |
| London Harlington Timeseries Graph |
83 (3 Low) | 51 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 26/02/2026 24:00 |
| London Hillingdon Timeseries Graph |
70 (3 Low) | 54 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 26/02/2026 24:00 |
| London Honor Oak Park Timeseries Graph |
93 (3 Low) | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 26/02/2026 24:00 |
| London Marylebone Road Timeseries Graph |
76 (3 Low) | 50 (1 Low) | 3 (1 Low) | 21 (2 Low) | 10 (1 Low) *1 | 27/02/2026 13:15 |
| London N. Kensington Timeseries Graph |
90 (3 Low) | 11 (1 Low) | 2 (1 Low) | 6 (1 Low) | 10 (1 Low) *2 | 27/02/2026 11:30 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 26/02/2026 24:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 12 (1 Low) *2 | 26/02/2026 24:00 |
| London Westminster Timeseries Graph |
81 (3 Low) | 17 (1 Low) | n/m | n/m | n/m | 26/02/2026 24:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 40 (1 Low) | n/m | n/m | 16 (1 Low) *1 | 27/02/2026 19:00 |
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 |
85 (3 Low) | 26 (1 Low) | n/m | n/m | n/m | 27/02/2026 04:00 |
| Inverness Timeseries Graph |
n/m | 52 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 27/02/2026 19:00 |
| Lerwick Timeseries Graph |
91 (3 Low) | n/m | n/m | n/m | n/m | 27/02/2026 18:00 |
| Strathvaich Timeseries Graph |
98 (3 Low) | n/m | n/m | n/m | n/m | 26/02/2026 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 |
77 (3 Low) | 33 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 27/02/2026 19:00 |
| Kielder Water Timeseries Graph |
77 (3 Low) | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 27/02/2026 19:00 |
| Middlesbrough Timeseries Graph |
77 (3 Low) | 40 (1 Low) | 2 (1 Low) | 3 (1 Low) | 12 (1 Low) *1 | 27/02/2026 15:00 |
| Newcastle Centre Timeseries Graph |
77 (3 Low) | 62 (1 Low) | n/m | 7 (1 Low) | 17 (2 Low) *1 | 27/02/2026 19:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 82 (2 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 27/02/2026 19:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 27/02/2026 19:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 42 (1 Low) | n/m | 4 (1 Low) | n/m | 27/02/2026 19:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 23 (1 Low) | n/m | 6 (1 Low) | 20 (2 Low) *1 | 27/02/2026 19:00 |
| Sunderland Silksworth Timeseries Graph |
82 (3 Low) | 43 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 27/02/2026 19:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 47 (1 Low) | n/m | 6 (1 Low) | n/m | 27/02/2026 19:00 |
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 |
75 (3 Low) | 38 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 27/02/2026 19:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 83 (2 Low) | n/m | n/m | n/m | 27/02/2026 18:00 |
| 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 | 67 (1 Low) | n/m | n/m | n/m | 27/02/2026 19:00 |
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 |
88 (3 Low) | 6 (1 Low) | n/m | n/m | n/m | 27/02/2026 12:00 |
| Wrexham Timeseries Graph |
n/m | 44 (1 Low) | 2 (1 Low) | 4 (1 Low) | 7 (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 | 63 (1 Low) | n/m | 5 (1 Low) | n/m | 27/02/2026 19:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 55 (1 Low) | n/m | n/m | n/m | 27/02/2026 18:00 |
| Blackburn Audley Park Timeseries Graph |
70 (3 Low) | n/m | n/m | 5 (1 Low) | 7 (1 Low) *2 | 27/02/2026 19:00 |
| Blackpool Marton Timeseries Graph |
81 (3 Low) | 26 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 27/02/2026 18:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 27/02/2026 19:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 55 (1 Low) | n/m | n/m | 11 (1 Low) *1 | 27/02/2026 09:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 26 (1 Low) | n/m | 5 (1 Low) | 20 (2 Low) *1 | 27/02/2026 17:00 |
| Crewe Coppenhall Timeseries Graph |
77 (3 Low) | 27 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 27/02/2026 19:00 |
| Glazebury Timeseries Graph |
77 (3 Low) | 24 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 27/02/2026 19:00 |
| Liverpool Speke Timeseries Graph |
76 (3 Low) | 53 (1 Low) | 13 (1 Low) | 6 (1 Low) | 13 (1 Low) *1 | 27/02/2026 02:45 |
| Liverpool Thirlmere Park Timeseries Graph |
70 (3 Low) | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 27/02/2026 19:00 |
| Manchester Piccadilly Timeseries Graph |
59 (2 Low) | 45 (1 Low) | 2 (1 Low) | 7 (1 Low) | 13 (1 Low) *2 | 27/02/2026 12:30 |
| Manchester Sharston Timeseries Graph |
76 (3 Low) | 36 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 27/02/2026 19:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 27/02/2026 19:00 |
| Preston Timeseries Graph |
74 (3 Low) | 43 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 27/02/2026 19:00 |
| Salford Eccles Timeseries Graph |
75 (3 Low) | 55 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 27/02/2026 19:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 68 (2 Low) | n/m | n/m | n/m | 27/02/2026 09:00 |
| St Helens Linkway Timeseries Graph |
n/m | 42 (1 Low) | n/m | n/m | n/a | 27/02/2026 09:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | n/m | 27/02/2026 14:00 |
| Warrington Timeseries Graph |
n/m | 39 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *1 | 27/02/2026 19:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 62 (1 Low) | n/m | n/m | n/m | 27/02/2026 09:00 |
| Wigan Centre Timeseries Graph |
67 (3 Low) | 28 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 27/02/2026 19:00 |
| Wirral Tranmere Timeseries Graph |
79 (3 Low) | 38 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 27/02/2026 19:00 |
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 | 62 (1 Low) | n/m | n/m | 35 (3 Low) *1 | 27/02/2026 09:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 69 (2 Low) | n/m | n/m | n/m | 27/02/2026 08:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 60 (1 Low) | 49 (1 Low) | n/m | n/m | 27/02/2026 05:45 |
| Belfast Centre Timeseries Graph |
60 (2 Low) | 51 (1 Low) | 1 (1 Low) | 11 (1 Low) | 22 (2 Low) *2 | 27/02/2026 08:30 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 73 (2 Low) | n/m | n/m | 33 (2 Low) *1 | 27/02/2026 09:00 |
| Derry Rosemount Timeseries Graph |
79 (3 Low) | 25 (1 Low) | 5 (1 Low) | 5 (1 Low) | 17 (2 Low) *1 | 27/02/2026 18:30 |
| Lough Navar Timeseries Graph |
71 (3 Low) | n/m | n/m | 6 (1 Low) | 11 (1 Low) *2 | 27/02/2026 15:00 |
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 | 43 (1 Low) | n/m | n/m | n/m | 27/02/2026 17:00 |
| Eskdalemuir Timeseries Graph |
80 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 26/02/2026 20:00 |
| Peebles Timeseries Graph |
81 (3 Low) | 12 (1 Low) | n/m | n/m | n/m | 26/02/2026 20:00 |
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 | 26/02/2026 24:00 |
| Brighton Preston Park Timeseries Graph |
76 (3 Low) | 14 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 26/02/2026 24:00 |
| Chatham Roadside Timeseries Graph |
n/m | 36 (1 Low) | n/m | n/a | n/a | 25/02/2026 01:00 |
| Chilbolton Observatory Timeseries Graph |
96 (3 Low) | 5 (1 Low) | 1 (1 Low) | 6 (1 Low) | 9 (1 Low) *2 | 27/02/2026 18:45 |
| Eastbourne Timeseries Graph |
78 (3 Low) | 13 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 27/02/2026 02:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 26/02/2026 24:00 |
| Horley Timeseries Graph |
n/m | 31 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 26/02/2026 24:00 |
| Lullington Heath Timeseries Graph |
87 (3 Low) | 13 (1 Low) | 2 (1 Low) | 8 (1 Low) | 14 (1 Low) *2 | 27/02/2026 11:45 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 16 (1 Low) *2 | 26/02/2026 24:00 |
| Milton Keynes Civic Centre Timeseries Graph |
85 (3 Low) | n/m | n/m | 5 (1 Low) | 7 (1 Low) *2 | 26/02/2026 24:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 20 (1 Low) | n/m | n/m | n/m | 27/02/2026 19:00 |
| Oxford St Ebbes Timeseries Graph |
81 (3 Low) | 12 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 26/02/2026 24:00 |
| Portsmouth Timeseries Graph |
85 (3 Low) | 16 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 26/02/2026 24:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 54 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 26/02/2026 24:00 |
| Reading London Road Timeseries Graph |
n/m | 10 (1 Low) | n/m | n/m | 14 (1 Low) *1 | 27/02/2026 19:00 |
| Reading New Town Timeseries Graph |
79 (3 Low) | 12 (1 Low) | n/m | 6 (1 Low) | 9 (1 Low) *2 | 26/02/2026 24:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 26/02/2026 24:00 |
| Rochester Stoke Timeseries Graph |
89 (3 Low) | 14 (1 Low) | 1 (1 Low) | 7 (1 Low) | 13 (1 Low) *2 | 27/02/2026 17:30 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 13 (1 Low) *2 | 26/02/2026 24:00 |
| Southampton A33 Timeseries Graph |
n/m | 51 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 26/02/2026 24:00 |
| Southampton Centre Timeseries Graph |
85 (3 Low) | 60 (1 Low) | 3 (1 Low) | 9 (1 Low) | 17 (2 Low) *2 | 27/02/2026 18:30 |
| Storrington Roadside Timeseries Graph |
n/m | 20 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 26/02/2026 24:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 39 (1 Low) | n/m | n/a | n/m | 26/02/2026 24:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 20 (2 Low) *2 | 27/02/2026 13:00 |
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 |
76 (3 Low) | 26 (1 Low) | 1 (1 Low) | 5 (1 Low) | 8 (1 Low) *1 | 27/02/2026 08:30 |
| Cardiff Newport Road Timeseries Graph |
n/m | 48 (1 Low) | n/m | n/m | 10 (1 Low) *1 | 27/02/2026 17:00 |
| Chepstow A48 Timeseries Graph |
n/m | 43 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *1 | 26/02/2026 24:00 |
| Cwmbran Crownbridge Timeseries Graph |
84 (3 Low) | 13 (1 Low) | n/m | n/m | n/m | 27/02/2026 07:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 56 (1 Low) | n/m | n/m | n/m | 27/02/2026 09:00 |
| Narberth Timeseries Graph |
96 (3 Low) | 3 (1 Low) | 2 (1 Low) | 6 (1 Low) | 8 (1 Low) *2 | 27/02/2026 10:15 |
| Newport Timeseries Graph |
n/m | 22 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 26/02/2026 24:00 |
| Port Talbot Margam Timeseries Graph |
82 (3 Low) | 44 (1 Low) | 2 (1 Low) | 4 (1 Low) | 18 (2 Low) *3 | 27/02/2026 15:45 |
| Swansea Roadside Timeseries Graph |
n/m | 42 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *1 | 27/02/2026 02:00 |
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 | 3 (1 Low) | 5 (1 Low) *2 | 26/02/2026 24:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | n/m | 27/02/2026 19:00 |
| Bournemouth Timeseries Graph |
87 (3 Low) | 11 (1 Low) | n/m | 10 (1 Low) | n/m | 26/02/2026 24:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 26/02/2026 24:00 |
| Bristol St Paul's Timeseries Graph |
84 (3 Low) | 37 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *1 | 26/02/2026 24:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 57 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 26/02/2026 24:00 |
| Charlton Mackrell Timeseries Graph |
88 (3 Low) | 5 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 26/02/2026 24:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | n/m | 26/02/2026 24:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 9 (1 Low) | n/m | 9 (1 Low) | n/m | 26/02/2026 24:00 |
| Exeter Roadside Timeseries Graph |
87 (3 Low) | 27 (1 Low) | n/m | n/m | n/m | 27/02/2026 05:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 26/02/2026 24:00 |
| Honiton Timeseries Graph |
89 (3 Low) | 5 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 26/02/2026 24:00 |
| Plymouth Centre Timeseries Graph |
85 (3 Low) | 56 (1 Low) | n/m | 9 (1 Low) | 23 (2 Low) *2 | 26/02/2026 24:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 18 (1 Low) | n/m | n/m | n/m | 27/02/2026 09:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 15 (1 Low) *1 | 26/02/2026 24:00 |
| Swindon Walcot Timeseries Graph |
86 (3 Low) | 8 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 26/02/2026 24:00 |
| Yarner Wood Timeseries Graph |
89 (3 Low) | 2 (1 Low) | n/m | 2 (1 Low) | 3 (1 Low) *2 | 26/02/2026 24:00 |
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 | 27/02/2026 03:00 |
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 |
62 (2 Low) | 68 (2 Low) | n/m | 4 (1 Low) | 13 (1 Low) *2 | 26/02/2026 24:00 |
| Birmingham Hall Green Timeseries Graph |
84 (3 Low) | 39 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 26/02/2026 24:00 |
| Birmingham Ladywood Timeseries Graph |
86 (3 Low) | 55 (1 Low) | 1 (1 Low) | 3 (1 Low) | 4 (1 Low) *2 | 27/02/2026 17:30 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 26/02/2026 24:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
71 (3 Low) | 30 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 26/02/2026 24:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | 2 (1 Low) | n/m | 26/02/2026 24:00 |
| Coventry Allesley Timeseries Graph |
78 (3 Low) | 24 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 26/02/2026 24:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 41 (1 Low) | n/m | 3 (1 Low) | 8 (1 Low) *2 | 26/02/2026 24:00 |
| Leamington Spa Timeseries Graph |
83 (3 Low) | 35 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 26/02/2026 24:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 36 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 26/02/2026 24:00 |
| Leominster Timeseries Graph |
85 (3 Low) | 12 (1 Low) | n/m | n/m | n/m | 27/02/2026 08:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 75 (2 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 26/02/2026 24:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 27/02/2026 19:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 53 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 27/02/2026 19:00 |
| Stoke-on-Trent Centre Timeseries Graph |
72 (3 Low) | 48 (1 Low) | n/m | 3 (1 Low) | 4 (1 Low) *2 | 27/02/2026 19:00 |
| Telford Hollinswood Timeseries Graph |
n/a | 25 (1 Low) | n/m | 3 (1 Low) | 4 (1 Low) *2 | 27/02/2026 19:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 26/02/2026 24:00 |
| Walsall Woodlands Timeseries Graph |
80 (3 Low) | 22 (1 Low) | n/m | n/m | n/m | 26/02/2026 20:00 |
| West Bromwich Kenrick Park Timeseries Graph |
80 (3 Low) | 51 (1 Low) | n/m | n/m | n/m | 27/02/2026 06:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 26/02/2026 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 |
86 (3 Low) | 26 (1 Low) | 2 (1 Low) | 3 (1 Low) | 5 (1 Low) *2 | 27/02/2026 15:45 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 73 (2 Low) | n/m | n/m | n/m | 27/02/2026 09:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 13 (1 Low) *2 | 27/02/2026 19:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
77 (3 Low) | 32 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 27/02/2026 19:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 60 (1 Low) | n/m | 4 (1 Low) | n/m | 27/02/2026 19:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 27/02/2026 19:00 |
| High Muffles Timeseries Graph |
74 (3 Low) | 7 (1 Low) | n/m | 5 (1 Low) | 7 (1 Low) *2 | 27/02/2026 19:00 |
| Hull Freetown Timeseries Graph |
66 (2 Low) | 53 (1 Low) | 3 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 26/02/2026 23:45 |
| Hull Holderness Road Timeseries Graph |
n/m | 50 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 27/02/2026 19:00 |
| Immingham Woodlands Avenue Timeseries Graph |
76 (3 Low) | 49 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 27/02/2026 19:00 |
| Leeds Centre Timeseries Graph |
69 (3 Low) | 30 (1 Low) | 2 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 27/02/2026 08:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 53 (1 Low) | n/m | 7 (1 Low) | 19 (2 Low) *1 | 27/02/2026 19:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 27/02/2026 19:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 28 (1 Low) | 3 (1 Low) | 5 (1 Low) | 7 (1 Low) *1 | 26/02/2026 23:15 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 64 (1 Low) | n/m | 5 (1 Low) | n/m | 27/02/2026 19:00 |
| Sheffield Devonshire Green Timeseries Graph |
74 (3 Low) | 27 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 27/02/2026 19:00 |
| Sheffield Tinsley Timeseries Graph |
69 (3 Low) | 67 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 27/02/2026 19:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 27/02/2026 19:00 |
| York Bootham Timeseries Graph |
64 (2 Low) | 33 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *1 | 27/02/2026 19:00 |
| York Fishergate Timeseries Graph |
n/m | 61 (1 Low) | n/m | 2 (1 Low) | 17 (2 Low) *1 | 27/02/2026 19:00 |
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