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 11pm Sun 26th Apr 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 |
75 (3 Low) | n/m | n/m | 6 (1 Low) | 8 (1 Low) *2 | 26/04/2026 07:00:00 |
| Bush Estate Timeseries Graph |
93 (3 Low) | 10 (1 Low) | n/m | n/m | n/m | 25/04/2026 21:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 16 (1 Low) | n/m | n/m | n/m | 26/04/2026 23:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 42 (1 Low) | n/m | n/m | n/m | 26/04/2026 12:00:00 |
| Edinburgh St Leonards Timeseries Graph |
87 (3 Low) | 28 (1 Low) | 2 (1 Low) | 8 (1 Low) | 11 (1 Low) *2 | 26/04/2026 01:15:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 26 (1 Low) | n/m | n/m | n/m | 26/04/2026 20:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 27 (1 Low) | n/m | 11 (1 Low) | 16 (1 Low) *2 | 26/04/2026 01:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 91 (2 Low) | n/m | n/m | n/m | 25/04/2026 24:00: |
| Glasgow Townhead Timeseries Graph |
97 (3 Low) | 17 (1 Low) | n/m | 10 (1 Low) | 14 (1 Low) *2 | 26/04/2026 01:00:00 |
| Grangemouth Timeseries Graph |
n/m | 17 (1 Low) | 3 (1 Low) | 6 (1 Low) | 12 (1 Low) *1 | 26/04/2026 14:15:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 11 (1 Low) | n/m | n/m | n/m | 26/04/2026 15:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 26 (1 Low) | n/m | 9 (1 Low) | 13 (1 Low) *2 | 26/04/2026 05:00:00 |
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 |
97 (3 Low) | 10 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 26/04/2026 18:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 17 (1 Low) | n/m | 10 (1 Low) | 18 (2 Low) *2 | 26/04/2026 18:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 48 (1 Low) | n/m | 10 (1 Low) | n/m | 26/04/2026 23:00:00 |
| Derby Stockbrook Park Timeseries Graph |
94 (3 Low) | n/m | n/m | 9 (1 Low) | 14 (1 Low) *2 | 26/04/2026 23:00:00 |
| Ladybower Timeseries Graph |
104 (4 Moderate) | 9 (1 Low) | 7 (1 Low) | 12 (2 Low) | 17 (2 Low) *2 | 25/04/2026 13:00:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 60 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 26/04/2026 20:00:00 |
| Leicester University Timeseries Graph |
100 (3 Low) | 17 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 26/04/2026 15:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 51 (1 Low) | n/m | n/m | n/m | 26/04/2026 22:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 13 (1 Low) *2 | 26/04/2026 15:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 16 (1 Low) *2 | 26/04/2026 01:00:00 |
| Northampton Spring Park Timeseries Graph |
99 (3 Low) | 14 (1 Low) | n/m | 15 (2 Low) | n/m | 26/04/2026 21:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 26/04/2026 23:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
90 (3 Low) | 29 (1 Low) | 1 (1 Low) | 10 (1 Low) | 15 (1 Low) *2 | 26/04/2026 10:45:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 57 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 26/04/2026 01:00:00 |
| Tallington Timeseries Graph |
101 (4 Moderate) | n/m | n/m | 8 (1 Low) | 12 (1 Low) *2 | 26/04/2026 16:00:00 |
| Toft Newton Timeseries Graph |
102 (4 Moderate) | 4 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) *2 | 26/04/2026 04:00:00 |
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 | n/a | n/m | 11 (1 Low) | 16 (1 Low) *2 | 26/04/2026 23:00:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 17 (2 Low) *2 | 26/04/2026 19:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 26/04/2026 22:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 58 (1 Low) | n/m | 13 (2 Low) | n/m | 26/04/2026 20:00:00 |
| Norwich Lakenfields Timeseries Graph |
87 (3 Low) | 9 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *2 | 26/04/2026 15:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 14 (1 Low) *2 | 26/04/2026 17:00:00 |
| Sibton Timeseries Graph |
93 (3 Low) | n/m | n/m | 7 (1 Low) | 10 (1 Low) *2 | 26/04/2026 20:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 11 (1 Low) *2 | 26/04/2026 23:00:00 |
| Southend-on-Sea Timeseries Graph |
99 (3 Low) | 18 (1 Low) | n/m | 11 (1 Low) | 14 (1 Low) *2 | 26/04/2026 23:00:00 |
| St Osyth Timeseries Graph |
118 (4 Moderate) | 9 (1 Low) | n/m | n/a | n/a | 25/04/2026 05:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 23 (1 Low) | n/m | 14 (2 Low) | 14 (1 Low) *1 | 26/04/2026 22:00:00 |
| Thurrock Timeseries Graph |
n/a | n/a | 2 (1 Low) | 11 (1 Low) | 16 (1 Low) *2 | 25/04/2026 24:30: |
| Weybourne Timeseries Graph |
96 (3 Low) | n/m | n/m | 8 (1 Low) | 16 (1 Low) *2 | 26/04/2026 02:00:00 |
| Wicken Fen Timeseries Graph |
93 (3 Low) | 5 (1 Low) | 2 (1 Low) | 9 (1 Low) | 14 (1 Low) *2 | 26/04/2026 22:15:00 |
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 | 51 (1 Low) | n/m | 14 (2 Low) | 29 (2 Low) *1 | 26/04/2026 20:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 28 (2 Low) *1 | 26/04/2026 02:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 69 (2 Low) | n/m | n/m | n/m | 25/04/2026 24:00: |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | n/m | 26/04/2026 22:00:00 |
| London Bexley Timeseries Graph |
n/m | 48 (1 Low) | n/m | 10 (1 Low) | 14 (1 Low) *2 | 26/04/2026 21:00:00 |
| London Bloomsbury Timeseries Graph |
87 (3 Low) | 65 (1 Low) | 2 (1 Low) | 12 (2 Low) | 17 (2 Low) *2 | 26/04/2026 07:15:00 |
| London Farringdon Street Timeseries Graph |
n/m | 67 (1 Low) | n/m | 14 (2 Low) | n/m | 26/04/2026 23:00:00 |
| London Haringey Priory Park South Timeseries Graph |
104 (4 Moderate) | 53 (1 Low) | n/m | 11 (1 Low) | 15 (1 Low) *2 | 26/04/2026 23:00:00 |
| London Harlington Timeseries Graph |
99 (3 Low) | 67 (1 Low) | n/m | 9 (1 Low) | 18 (2 Low) *2 | 26/04/2026 22:00:00 |
| London Hillingdon Timeseries Graph |
94 (3 Low) | 84 (2 Low) | n/m | 12 (2 Low) | 19 (2 Low) *2 | 26/04/2026 23:00:00 |
| London Honor Oak Park Timeseries Graph |
112 (4 Moderate) | n/m | n/m | 11 (1 Low) | 15 (1 Low) *2 | 26/04/2026 22:00:00 |
| London Marylebone Road Timeseries Graph |
79 (3 Low) | 53 (1 Low) | 3 (1 Low) | 14 (2 Low) | 23 (2 Low) *1 | 26/04/2026 13:15:00 |
| London N. Kensington Timeseries Graph |
103 (4 Moderate) | 48 (1 Low) | 3 (1 Low) | 11 (1 Low) | 16 (1 Low) *2 | 26/04/2026 16:00:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 16 (1 Low) *2 | 26/04/2026 23:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 16 (1 Low) *2 | 26/04/2026 23:00:00 |
| London Westminster Timeseries Graph |
87 (3 Low) | 63 (1 Low) | n/m | n/m | n/m | 26/04/2026 20:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 65 (1 Low) | n/m | n/m | 28 (2 Low) *1 | 26/04/2026 01:00:00 |
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 |
86 (3 Low) | 9 (1 Low) | n/m | n/m | n/m | 26/04/2026 20:00:00 |
| Inverness Timeseries Graph |
n/m | 17 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 26/04/2026 01:00:00 |
| Lerwick Timeseries Graph |
91 (3 Low) | n/m | n/m | n/m | n/m | 26/04/2026 17:00:00 |
| Strathvaich Timeseries Graph |
106 (4 Moderate) | n/m | n/m | n/m | n/m | 26/04/2026 19:00:00 |
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 |
94 (3 Low) | 45 (1 Low) | n/m | 13 (2 Low) | 27 (2 Low) *2 | 26/04/2026 23:00:00 |
| Kielder Water Timeseries Graph |
88 (3 Low) | n/m | n/m | 7 (1 Low) | 10 (1 Low) *2 | 26/04/2026 23:00:00 |
| Middlesbrough Timeseries Graph |
88 (3 Low) | 32 (1 Low) | 1 (1 Low) | 7 (1 Low) | 15 (1 Low) *1 | 26/04/2026 18:15:00 |
| Newcastle Centre Timeseries Graph |
86 (3 Low) | 55 (1 Low) | n/m | 11 (1 Low) | 19 (2 Low) *1 | 26/04/2026 23:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 68 (2 Low) | n/m | 10 (1 Low) | 17 (2 Low) *2 | 26/04/2026 23:00:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 21 (2 Low) *2 | 26/04/2026 23:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 36 (1 Low) | n/m | 9 (1 Low) | n/m | 26/04/2026 01:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 18 (1 Low) | n/m | n/a | 20 (2 Low) *1 | 24/04/2026 09:00:00 |
| Sunderland Silksworth Timeseries Graph |
89 (3 Low) | 27 (1 Low) | n/m | 11 (1 Low) | 17 (2 Low) *2 | 26/04/2026 23:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 42 (1 Low) | n/m | 9 (1 Low) | n/m | 26/04/2026 23:00:00 |
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 |
87 (3 Low) | 22 (1 Low) | n/m | 7 (1 Low) | 15 (1 Low) *2 | 26/04/2026 23:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 30 (1 Low) | n/m | n/m | n/m | 26/04/2026 23:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 26/04/2026 21:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 21 (1 Low) | n/m | n/m | n/m | 26/04/2026 20:00:00 |
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 |
111 (4 Moderate) | 9 (1 Low) | n/m | n/m | n/m | 25/04/2026 24:00: |
| Wrexham Timeseries Graph |
n/m | 29 (1 Low) | 3 (1 Low) | 14 (2 Low) | 20 (2 Low) *2 | 25/04/2026 22:15:00 |
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 | 32 (1 Low) | n/m | 18 (2 Low) | n/m | 26/04/2026 23:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 44 (1 Low) | n/m | n/m | n/m | 26/04/2026 23:00:00 |
| Blackburn Audley Park Timeseries Graph |
89 (3 Low) | n/m | n/m | 14 (2 Low) | 19 (2 Low) *2 | 26/04/2026 23:00:00 |
| Blackpool Marton Timeseries Graph |
87 (3 Low) | 18 (1 Low) | n/m | 17 (2 Low) | 22 (2 Low) *2 | 26/04/2026 23:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 16 (2 Low) | n/m | 26/04/2026 23:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 29 (1 Low) | n/m | n/m | 20 (2 Low) *1 | 26/04/2026 22:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 16 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *1 | 26/04/2026 23:00:00 |
| Crewe Coppenhall Timeseries Graph |
101 (4 Moderate) | 19 (1 Low) | n/m | 12 (2 Low) | 17 (2 Low) *2 | 26/04/2026 23:00:00 |
| Glazebury Timeseries Graph |
91 (3 Low) | 14 (1 Low) | n/m | 14 (2 Low) | 19 (2 Low) *2 | 26/04/2026 23:00:00 |
| Liverpool Speke Timeseries Graph |
85 (3 Low) | 50 (1 Low) | 11 (1 Low) | 17 (2 Low) | 24 (2 Low) *1 | 26/04/2026 15:15:00 |
| Liverpool Thirlmere Park Timeseries Graph |
73 (3 Low) | n/m | n/m | 18 (2 Low) | 25 (2 Low) *2 | 26/04/2026 23:00:00 |
| Manchester Piccadilly Timeseries Graph |
84 (3 Low) | 32 (1 Low) | 1 (1 Low) | 18 (2 Low) | 38 (3 Low) *2 | 26/04/2026 20:30:00 |
| Manchester Sharston Timeseries Graph |
95 (3 Low) | 40 (1 Low) | n/m | 14 (2 Low) | 20 (2 Low) *2 | 26/04/2026 23:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | n/m | 26/04/2026 23:00:00 |
| Preston Timeseries Graph |
89 (3 Low) | 27 (1 Low) | n/m | 15 (2 Low) | 20 (2 Low) *2 | 26/04/2026 23:00:00 |
| Salford Eccles Timeseries Graph |
100 (3 Low) | 29 (1 Low) | n/m | 14 (2 Low) | 23 (2 Low) *2 | 26/04/2026 23:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 44 (1 Low) | n/m | n/m | n/m | 26/04/2026 22:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 33 (1 Low) | n/m | n/m | 21 (2 Low) *1 | 26/04/2026 18:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | n/m | 26/04/2026 23:00:00 |
| Warrington Timeseries Graph |
n/m | 20 (1 Low) | n/m | 13 (2 Low) | 19 (2 Low) *1 | 26/04/2026 21:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 32 (1 Low) | n/m | n/m | n/m | 26/04/2026 15:00:00 |
| Wigan Centre Timeseries Graph |
83 (3 Low) | 21 (1 Low) | n/m | 17 (2 Low) | 24 (2 Low) *2 | 26/04/2026 23:00:00 |
| Wirral Tranmere Timeseries Graph |
89 (3 Low) | 23 (1 Low) | n/m | 16 (2 Low) | 21 (2 Low) *2 | 26/04/2026 23:00:00 |
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 | 40 (1 Low) | n/m | n/m | 30 (2 Low) *1 | 25/04/2026 24:00: |
| Ballymena Antrim Road Timeseries Graph |
n/m | 38 (1 Low) | n/m | n/m | n/m | 25/04/2026 24:00: |
| Ballymena Ballykeel Timeseries Graph |
n/m | 28 (1 Low) | 14 (1 Low) | n/m | n/m | 25/04/2026 10:15:00 |
| Belfast Centre Timeseries Graph |
71 (3 Low) | 58 (1 Low) | 2 (1 Low) | 17 (2 Low) | 25 (2 Low) *2 | 26/04/2026 20:00:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 80 (2 Low) | n/m | n/m | 29 (2 Low) *1 | 25/04/2026 24:00: |
| Derry Rosemount Timeseries Graph |
88 (3 Low) | 19 (1 Low) | 8 (1 Low) | 5 (1 Low) | 15 (1 Low) *1 | 25/04/2026 23:15:00 |
| Lough Navar Timeseries Graph |
80 (3 Low) | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 26/04/2026 08:00:00 |
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 | 20 (1 Low) | n/m | n/m | n/m | 26/04/2026 13:00:00 |
| Eskdalemuir Timeseries Graph |
82 (3 Low) | 4 (1 Low) | n/m | n/m | n/m | 26/04/2026 21:00:00 |
| Peebles Timeseries Graph |
87 (3 Low) | 6 (1 Low) | n/m | n/m | n/m | 26/04/2026 21:00:00 |
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 | 11 (1 Low) | n/m | 26/04/2026 20:00:00 |
| Brighton Preston Park Timeseries Graph |
87 (3 Low) | 41 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 26/04/2026 23:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 25 (1 Low) | n/m | 12 (2 Low) | 24 (2 Low) *1 | 26/04/2026 22:00:00 |
| Chilbolton Observatory Timeseries Graph |
107 (4 Moderate) | 20 (1 Low) | 3 (1 Low) | 5 (1 Low) | 9 (1 Low) *2 | 26/04/2026 10:30:00 |
| Eastbourne Timeseries Graph |
100 (3 Low) | 33 (1 Low) | n/m | 10 (1 Low) | 14 (1 Low) *2 | 26/04/2026 22:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 13 (1 Low) *2 | 26/04/2026 22:00:00 |
| Horley Timeseries Graph |
n/m | 38 (1 Low) | n/m | 12 (2 Low) | 17 (2 Low) *2 | 26/04/2026 23:00:00 |
| Lullington Heath Timeseries Graph |
102 (4 Moderate) | 30 (1 Low) | 9 (1 Low) | 7 (1 Low) | 10 (1 Low) *2 | 26/04/2026 04:15:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | 25 (2 Low) *2 | 26/04/2026 20:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
102 (4 Moderate) | n/m | n/m | 12 (2 Low) | 17 (2 Low) *2 | 26/04/2026 21:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 47 (1 Low) | n/m | n/m | n/m | 26/04/2026 22:00:00 |
| Oxford St Ebbes Timeseries Graph |
97 (3 Low) | 31 (1 Low) | n/m | 12 (2 Low) | 17 (2 Low) *2 | 26/04/2026 23:00:00 |
| Portsmouth Timeseries Graph |
95 (3 Low) | 53 (1 Low) | n/m | 9 (1 Low) | 13 (1 Low) *2 | 26/04/2026 06:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 44 (1 Low) | n/m | 11 (1 Low) | 15 (1 Low) *2 | 26/04/2026 05:00:00 |
| Reading London Road Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | 18 (2 Low) *1 | 25/04/2026 24:00: |
| Reading New Town Timeseries Graph |
99 (3 Low) | 29 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 26/04/2026 23:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | n/m | 26/04/2026 23:00:00 |
| Rochester Stoke Timeseries Graph |
102 (4 Moderate) | 22 (1 Low) | 2 (1 Low) | 10 (1 Low) | 13 (1 Low) *2 | 26/04/2026 18:45:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 22 (2 Low) *2 | 26/04/2026 23:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 76 (2 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 26/04/2026 23:00:00 |
| Southampton Centre Timeseries Graph |
86 (3 Low) | 75 (2 Low) | 6 (1 Low) | 9 (1 Low) | 14 (1 Low) *2 | 26/04/2026 13:15:00 |
| Storrington Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 26/04/2026 23:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 35 (1 Low) | n/m | 11 (1 Low) | n/m | 26/04/2026 23:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 14 (1 Low) *2 | 26/04/2026 23:00:00 |
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 |
98 (3 Low) | 84 (2 Low) | 3 (1 Low) | 16 (2 Low) | 21 (2 Low) *1 | 26/04/2026 14:45:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 74 (2 Low) | n/m | n/m | 32 (2 Low) *1 | 25/04/2026 24:00: |
| Chepstow A48 Timeseries Graph |
n/m | 72 (2 Low) | n/m | 13 (2 Low) | 15 (1 Low) *1 | 26/04/2026 20:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
101 (4 Moderate) | 38 (1 Low) | n/m | n/m | n/m | 26/04/2026 21:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 32 (1 Low) | n/m | n/m | n/m | 26/04/2026 17:00:00 |
| Narberth Timeseries Graph |
100 (3 Low) | 8 (1 Low) | 2 (1 Low) | 11 (1 Low) | 22 (2 Low) *2 | 26/04/2026 12:45:00 |
| Newport Timeseries Graph |
n/m | 31 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 26/04/2026 23:00:00 |
| Port Talbot Margam Timeseries Graph |
95 (3 Low) | 27 (1 Low) | 4 (1 Low) | 16 (2 Low) | 21 (2 Low) *3 | 26/04/2026 09:30:00 |
| Swansea Roadside Timeseries Graph |
n/m | 51 (1 Low) | n/m | 15 (2 Low) | 22 (2 Low) *1 | 26/04/2026 10:00:00 |
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 | 7 (1 Low) | 13 (1 Low) *2 | 26/04/2026 02:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 22/03/2026 17:00:00 |
| Bournemouth Timeseries Graph |
90 (3 Low) | 33 (1 Low) | n/m | 14 (2 Low) | n/m | 26/04/2026 13:00:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 17 (2 Low) *2 | 26/04/2026 20:00:00 |
| Bristol St Paul's Timeseries Graph |
96 (3 Low) | 82 (2 Low) | n/m | 14 (2 Low) | 24 (2 Low) *1 | 26/04/2026 12:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 84 (2 Low) | n/m | 12 (2 Low) | 19 (2 Low) *2 | 26/04/2026 10:00:00 |
| Charlton Mackrell Timeseries Graph |
104 (4 Moderate) | 9 (1 Low) | n/m | 11 (1 Low) | 16 (1 Low) *2 | 26/04/2026 17:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 26/04/2026 16:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 33 (1 Low) | n/m | 10 (1 Low) | n/m | 26/04/2026 16:00:00 |
| Exeter Roadside Timeseries Graph |
88 (3 Low) | 56 (1 Low) | n/m | n/m | n/m | 26/04/2026 22:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 19 (2 Low) *2 | 26/04/2026 20:00:00 |
| Honiton Timeseries Graph |
103 (4 Moderate) | 12 (1 Low) | n/m | 12 (2 Low) | 17 (2 Low) *2 | 26/04/2026 19:00:00 |
| Plymouth Centre Timeseries Graph |
83 (3 Low) | 65 (1 Low) | n/m | 14 (2 Low) | 29 (2 Low) *2 | 26/04/2026 22:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 49 (1 Low) | n/m | n/m | n/m | 25/04/2026 23:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 26 (2 Low) *1 | 26/04/2026 22:00:00 |
| Swindon Walcot Timeseries Graph |
100 (3 Low) | 37 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 26/04/2026 23:00:00 |
| Yarner Wood Timeseries Graph |
108 (4 Moderate) | 7 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 26/04/2026 06:00:00 |
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 |
98 (3 Low) | n/m | n/m | n/m | n/m | 25/04/2026 22:00:00 |
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 |
80 (3 Low) | 81 (2 Low) | n/m | 11 (1 Low) | 19 (2 Low) *2 | 26/04/2026 23:00:00 |
| Birmingham Hall Green Timeseries Graph |
98 (3 Low) | 56 (1 Low) | n/m | 13 (2 Low) | 20 (2 Low) *2 | 26/04/2026 23:00:00 |
| Birmingham Ladywood Timeseries Graph |
64 (2 Low) | 53 (1 Low) | 1 (1 Low) | 10 (1 Low) | 14 (1 Low) *2 | 26/04/2026 11:45:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 15 (1 Low) *2 | 26/04/2026 23:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
100 (3 Low) | 50 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *2 | 26/04/2026 23:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 38 (1 Low) | n/m | 10 (1 Low) | n/m | 26/04/2026 13:00:00 |
| Coventry Allesley Timeseries Graph |
92 (3 Low) | 59 (1 Low) | n/m | 10 (1 Low) | 14 (1 Low) *2 | 26/04/2026 18:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 72 (2 Low) | n/m | 10 (1 Low) | 14 (1 Low) *2 | 26/04/2026 18:00:00 |
| Leamington Spa Timeseries Graph |
104 (4 Moderate) | 13 (1 Low) | n/m | 11 (1 Low) | 15 (1 Low) *2 | 26/04/2026 21:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 31 (1 Low) | n/m | 11 (1 Low) | 14 (1 Low) *2 | 26/04/2026 20:00:00 |
| Leominster Timeseries Graph |
87 (3 Low) | 15 (1 Low) | n/m | n/m | n/m | 26/04/2026 20:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 60 (1 Low) | n/m | 14 (2 Low) | 19 (2 Low) *2 | 26/04/2026 23:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 17 (2 Low) *2 | 26/04/2026 22:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 83 (2 Low) | n/m | 12 (2 Low) | 18 (2 Low) *2 | 26/04/2026 23:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
89 (3 Low) | 46 (1 Low) | n/m | 11 (1 Low) | 17 (2 Low) *2 | 26/04/2026 23:00:00 |
| Telford Hollinswood Timeseries Graph |
97 (3 Low) | 35 (1 Low) | n/m | 10 (1 Low) | 15 (1 Low) *2 | 26/04/2026 21:00:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 20 (2 Low) *2 | 26/04/2026 01:00:00 |
| Walsall Woodlands Timeseries Graph |
100 (3 Low) | 35 (1 Low) | n/m | n/m | n/m | 26/04/2026 20:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
88 (3 Low) | 52 (1 Low) | n/m | n/m | n/m | 26/04/2026 20:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 16 (1 Low) *2 | 26/04/2026 22:00:00 |
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 |
93 (3 Low) | 33 (1 Low) | 3 (1 Low) | 12 (2 Low) | 24 (2 Low) *2 | 26/04/2026 19:15:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 41 (1 Low) | n/m | n/m | n/m | 26/04/2026 21:00:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 34 (3 Low) | 192 (10 Very High) *2 | 26/04/2026 23:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
89 (3 Low) | 42 (1 Low) | n/m | 13 (2 Low) | 20 (2 Low) *2 | 26/04/2026 23:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 38 (1 Low) | n/m | 12 (2 Low) | n/m | 26/04/2026 03:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 16 (1 Low) *2 | 26/04/2026 01:00:00 |
| High Muffles Timeseries Graph |
89 (3 Low) | 3 (1 Low) | n/m | 6 (1 Low) | 9 (1 Low) *2 | 26/04/2026 23:00:00 |
| Hull Freetown Timeseries Graph |
86 (3 Low) | 20 (1 Low) | 1 (1 Low) | 9 (1 Low) | 14 (1 Low) *2 | 26/04/2026 02:45:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 22 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 26/04/2026 07:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
94 (3 Low) | 40 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 26/04/2026 06:00:00 |
| Leeds Centre Timeseries Graph |
92 (3 Low) | 42 (1 Low) | 4 (1 Low) | 12 (2 Low) | 19 (2 Low) *2 | 26/04/2026 18:30:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 42 (1 Low) | n/m | 14 (2 Low) | 23 (2 Low) *1 | 26/04/2026 01:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 19 (2 Low) *2 | 26/04/2026 03:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 14 (1 Low) | 6 (1 Low) | 10 (1 Low) | 17 (2 Low) *1 | 26/04/2026 07:15:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 62 (1 Low) | n/m | 13 (2 Low) | n/m | 26/04/2026 01:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
96 (3 Low) | 25 (1 Low) | n/m | 13 (2 Low) | 20 (2 Low) *2 | 26/04/2026 13:00:00 |
| Sheffield Tinsley Timeseries Graph |
86 (3 Low) | 46 (1 Low) | n/m | 12 (2 Low) | 27 (2 Low) *2 | 26/04/2026 05:00:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | 28 (2 Low) *2 | 26/04/2026 01:00:00 |
| York Bootham Timeseries Graph |
80 (3 Low) | 15 (1 Low) | n/m | 11 (1 Low) | 19 (2 Low) *1 | 26/04/2026 02:00:00 |
| York Fishergate Timeseries Graph |
n/m | 16 (1 Low) | n/m | 8 (1 Low) | 23 (2 Low) *1 | 26/04/2026 01:00:00 |
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