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 4pm Fri 31st Jul 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 |
63 (2 Low) | n/m | n/m | 2 (1 Low) | 4 (1 Low) *2 | 31/07/2026 01:00:00 |
| Bush Estate Timeseries Graph |
68 (3 Low) | 1 (1 Low) | n/m | n/m | n/m | 31/07/2026 17:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | n/m | 30/07/2026 17:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 48 (1 Low) | n/m | n/m | n/m | 31/07/2026 15:00:00 |
| Edinburgh St Leonards Timeseries Graph |
57 (2 Low) | 13 (1 Low) | 1 (1 Low) | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 02:30:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 26 (1 Low) | n/m | n/m | n/m | 31/07/2026 08:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 25 (1 Low) | n/m | 3 (1 Low) | 9 (1 Low) *2 | 31/07/2026 01:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 44 (1 Low) | n/m | n/m | n/m | 31/07/2026 09:00:00 |
| Glasgow Townhead Timeseries Graph |
67 (3 Low) | 25 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 01:00:00 |
| Grangemouth Timeseries Graph |
n/m | 12 (1 Low) | 3 (1 Low) | 6 (1 Low) | 9 (1 Low) *1 | 30/07/2026 22:15:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 14 (1 Low) | n/m | n/m | n/m | 31/07/2026 07:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 31 (1 Low) | n/m | 3 (1 Low) | 8 (1 Low) *2 | 31/07/2026 01:00:00 |
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 |
73 (3 Low) | 5 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 16:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 15 (1 Low) | n/m | 4 (1 Low) | 16 (1 Low) *2 | 31/07/2026 15:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 38 (1 Low) | n/m | 4 (1 Low) | n/m | 31/07/2026 08:00:00 |
| Derby Stockbrook Park Timeseries Graph |
72 (3 Low) | n/m | n/m | 3 (1 Low) | 8 (1 Low) *2 | 31/07/2026 09:00:00 |
| Ladybower Timeseries Graph |
81 (3 Low) | 6 (1 Low) | 2 (1 Low) | 3 (1 Low) | 6 (1 Low) *2 | 31/07/2026 09:30:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 42 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *2 | 31/07/2026 01:00:00 |
| Leicester University Timeseries Graph |
72 (3 Low) | 29 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 01:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 46 (1 Low) | n/m | n/m | n/m | 31/07/2026 07:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 8 (1 Low) *2 | 31/07/2026 16:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 16:00:00 |
| Northampton Spring Park Timeseries Graph |
77 (3 Low) | 11 (1 Low) | n/m | 9 (1 Low) | n/m | 31/07/2026 11:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 01:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
73 (3 Low) | 21 (1 Low) | 2 (1 Low) | 3 (1 Low) | 9 (1 Low) *2 | 31/07/2026 08:00:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 34 (1 Low) | n/m | 3 (1 Low) | 9 (1 Low) *2 | 31/07/2026 01:00:00 |
| Tallington Timeseries Graph |
85 (3 Low) | n/m | n/m | 4 (1 Low) | 10 (1 Low) *2 | 31/07/2026 10:00:00 |
| Toft Newton Timeseries Graph |
85 (3 Low) | 7 (1 Low) | n/m | 3 (1 Low) | 9 (1 Low) *2 | 31/07/2026 16:00:00 |
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 | 7 (1 Low) | n/m | 3 (1 Low) | 9 (1 Low) *2 | 31/07/2026 16:00:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 11 (1 Low) *2 | 31/07/2026 14:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 29 (1 Low) | n/m | n/m | n/m | 31/07/2026 16:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 52 (1 Low) | n/m | 4 (1 Low) | n/m | 31/07/2026 12:00:00 |
| Norwich Lakenfields Timeseries Graph |
66 (2 Low) | 11 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 31/07/2026 01:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 16 (1 Low) *2 | 31/07/2026 11:00:00 |
| Sibton Timeseries Graph |
68 (3 Low) | n/m | n/m | 6 (1 Low) | 16 (1 Low) *2 | 31/07/2026 01:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 11 (1 Low) *2 | 31/07/2026 01:00:00 |
| Southend-on-Sea Timeseries Graph |
72 (3 Low) | 9 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 31/07/2026 01:00:00 |
| St Osyth Timeseries Graph |
96 (3 Low) | 13 (1 Low) | n/m | 5 (1 Low) | 15 (1 Low) *2 | 31/07/2026 01:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 22 (1 Low) | n/m | 5 (1 Low) | 14 (1 Low) *1 | 31/07/2026 07:00:00 |
| Stevenage St Georges Way South Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 31/07/2026 13:00:00 |
| Thurrock Timeseries Graph |
69 (3 Low) | 18 (1 Low) | 3 (1 Low) | 4 (1 Low) | 11 (1 Low) *2 | 30/07/2026 17:15:00 |
| Weybourne Timeseries Graph |
65 (2 Low) | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 31/07/2026 01:00:00 |
| Wicken Fen Timeseries Graph |
71 (3 Low) | 1 (1 Low) | n/a | 4 (1 Low) | 12 (1 Low) *2 | 30/07/2026 05:00:00 |
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 | 30 (1 Low) | n/m | 9 (1 Low) | 19 (2 Low) *1 | 31/07/2026 16:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 57 (4 Moderate) *1 | 31/07/2026 01:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 31/07/2026 08:00:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 31/07/2026 01:00:00 |
| London Bexley Timeseries Graph |
n/m | 16 (1 Low) | n/m | 3 (1 Low) | 9 (1 Low) *2 | 31/07/2026 01:00:00 |
| London Bloomsbury Timeseries Graph |
67 (3 Low) | 33 (1 Low) | 2 (1 Low) | 4 (1 Low) | 13 (1 Low) *2 | 31/07/2026 10:45:00 |
| London Farringdon Street Timeseries Graph |
n/m | 45 (1 Low) | n/m | 5 (1 Low) | n/m | 31/07/2026 01:00:00 |
| London Haringey Priory Park South Timeseries Graph |
71 (3 Low) | 9 (1 Low) | n/m | 3 (1 Low) | 12 (1 Low) *2 | 31/07/2026 01:00:00 |
| London Harlington Timeseries Graph |
81 (3 Low) | 11 (1 Low) | n/m | 3 (1 Low) | 11 (1 Low) *2 | 31/07/2026 01:00:00 |
| London Hillingdon Timeseries Graph |
81 (3 Low) | 16 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *2 | 31/07/2026 01:00:00 |
| London Honor Oak Park Timeseries Graph |
83 (3 Low) | n/m | n/m | 3 (1 Low) | 8 (1 Low) *2 | 31/07/2026 01:00:00 |
| London Marylebone Road Timeseries Graph |
70 (3 Low) | 42 (1 Low) | 3 (1 Low) | 8 (1 Low) | 15 (1 Low) *1 | 30/07/2026 20:00:00 |
| London N. Kensington Timeseries Graph |
83 (3 Low) | 4 (1 Low) | 1 (1 Low) | 3 (1 Low) | 10 (1 Low) *2 | 31/07/2026 08:30:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 10 (1 Low) *2 | 31/07/2026 16:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 10 (1 Low) *2 | 31/07/2026 16:00:00 |
| London Westminster Timeseries Graph |
70 (3 Low) | 21 (1 Low) | n/m | n/m | n/m | 31/07/2026 16:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 32 (1 Low) | n/m | n/m | 25 (2 Low) *1 | 31/07/2026 10:00:00 |
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 |
57 (2 Low) | 9 (1 Low) | n/m | n/m | n/m | 30/07/2026 17:00:00 |
| Inverness Timeseries Graph |
n/m | 18 (1 Low) | n/m | 1 (1 Low) | 4 (1 Low) *2 | 31/07/2026 01:00:00 |
| Lerwick Timeseries Graph |
66 (2 Low) | n/m | n/m | n/m | n/m | 31/07/2026 16:00:00 |
| Strathvaich Timeseries Graph |
69 (3 Low) | n/m | n/m | n/m | n/m | 30/07/2026 17:00:00 |
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 |
| Darlington Firthmoor Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 16:00:00 |
| Hartlepool St Abbs Walk Timeseries Graph |
82 (3 Low) | 10 (1 Low) | n/m | 3 (1 Low) | 9 (1 Low) *2 | 31/07/2026 16:00:00 |
| Kielder Water Timeseries Graph |
60 (2 Low) | n/m | n/m | 2 (1 Low) | 4 (1 Low) *2 | 31/07/2026 16:00:00 |
| Middlesbrough Timeseries Graph |
65 (2 Low) | 8 (1 Low) | 2 (1 Low) | 2 (1 Low) | 8 (1 Low) *1 | 31/07/2026 10:00:00 |
| Newcastle Centre Timeseries Graph |
61 (2 Low) | 15 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *1 | 31/07/2026 01:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | n/a | n/m | n/a | n/a | 10/07/2026 10:00:00 |
| North Shields Chirton Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 31/07/2026 16:00:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 11 (1 Low) *2 | 31/07/2026 16:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 10 (1 Low) | n/m | 3 (1 Low) | n/m | 31/07/2026 12:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 9 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *1 | 31/07/2026 16:00:00 |
| Sunderland Silksworth Timeseries Graph |
63 (2 Low) | 15 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 16:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 18 (1 Low) | n/m | 2 (1 Low) | n/m | 31/07/2026 16:00:00 |
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 |
59 (2 Low) | 16 (1 Low) | n/m | 2 (1 Low) | 5 (1 Low) *2 | 31/07/2026 01:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/m | n/m | 31/07/2026 13:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 3 (1 Low) | n/m | n/m | n/m | 31/07/2026 07:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 13 (1 Low) | n/m | n/m | n/m | 31/07/2026 07:00:00 |
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 |
71 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 31/07/2026 16:00:00 |
| Wrexham Timeseries Graph |
n/m | 30 (1 Low) | 4 (1 Low) | 3 (1 Low) | 6 (1 Low) *2 | 31/07/2026 08:00:00 |
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 | 13 (1 Low) | n/m | 4 (1 Low) | n/m | 31/07/2026 16:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 30 (1 Low) | n/m | n/m | n/m | 30/07/2026 24:00: |
| Blackburn Audley Park Timeseries Graph |
59 (2 Low) | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 31/07/2026 16:00:00 |
| Blackpool Marton Timeseries Graph |
71 (3 Low) | 22 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 31/07/2026 16:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 31/07/2026 16:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 31/07/2026 03:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 10 (1 Low) | n/m | n/a | n/a | 31/07/2026 01:00:00 |
| Crewe Coppenhall Timeseries Graph |
70 (3 Low) | 22 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 31/07/2026 16:00:00 |
| Glazebury Timeseries Graph |
66 (2 Low) | 21 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 31/07/2026 16:00:00 |
| Liverpool Speke Timeseries Graph |
69 (3 Low) | 48 (1 Low) | 5 (1 Low) | 6 (1 Low) | 13 (1 Low) *1 | 30/07/2026 18:45:00 |
| Liverpool Thirlmere Park Timeseries Graph |
63 (2 Low) | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 31/07/2026 16:00:00 |
| Manchester Piccadilly Timeseries Graph |
51 (2 Low) | 39 (1 Low) | 3 (1 Low) | 5 (1 Low) | 12 (1 Low) *2 | 31/07/2026 09:30:00 |
| Manchester Sharston Timeseries Graph |
64 (2 Low) | 38 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 31/07/2026 16:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 31/07/2026 16:00:00 |
| Preston Timeseries Graph |
66 (2 Low) | 28 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 31/07/2026 16:00:00 |
| Rochdale Belfield Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 31/07/2026 16:00:00 |
| Salford Eccles Timeseries Graph |
67 (3 Low) | 32 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 31/07/2026 16:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | n/m | 31/07/2026 11:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 45 (1 Low) | n/m | n/m | 10 (1 Low) *1 | 30/07/2026 24:00: |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 31/07/2026 16:00:00 |
| Warrington Timeseries Graph |
n/m | n/a | n/m | 1 (1 Low) | 9 (1 Low) *1 | 31/07/2026 16:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 32 (1 Low) | n/m | n/m | n/m | 31/07/2026 08:00:00 |
| Wigan Centre Timeseries Graph |
62 (2 Low) | 31 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 31/07/2026 16:00:00 |
| Wirral Tranmere Timeseries Graph |
69 (3 Low) | 11 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 16:00:00 |
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 | 38 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 31/07/2026 14:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 33 (1 Low) | n/m | n/m | n/m | 31/07/2026 07:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 21 (1 Low) | 3 (1 Low) | n/m | n/m | 31/07/2026 15:15:00 |
| Belfast Centre Timeseries Graph |
62 (2 Low) | 32 (1 Low) | 6 (1 Low) | 5 (1 Low) | 10 (1 Low) *2 | 31/07/2026 02:15:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 59 (1 Low) | n/m | n/m | 14 (1 Low) *1 | 31/07/2026 08:00:00 |
| Derry Rosemount Timeseries Graph |
61 (2 Low) | 8 (1 Low) | 1 (1 Low) | 2 (1 Low) | 8 (1 Low) *1 | 30/07/2026 18:45:00 |
| Lough Navar Timeseries Graph |
60 (2 Low) | n/m | n/m | 3 (1 Low) | 6 (1 Low) *2 | 31/07/2026 10:00:00 |
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 | 24 (1 Low) | n/m | n/m | n/m | 31/07/2026 16:00:00 |
| Eskdalemuir Timeseries Graph |
63 (2 Low) | 1 (1 Low) | n/m | n/m | n/m | 30/07/2026 20:00:00 |
| Peebles Timeseries Graph |
65 (2 Low) | 6 (1 Low) | n/m | n/m | n/m | 30/07/2026 19:00:00 |
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 | 3 (1 Low) | n/m | 31/07/2026 01:00:00 |
| Brighton Preston Park Timeseries Graph |
55 (2 Low) | 74 (2 Low) | n/m | 4 (1 Low) | 20 (2 Low) *2 | 31/07/2026 01:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | n/a | n/m | 2 (1 Low) | 16 (1 Low) *1 | 31/07/2026 16:00:00 |
| Chilbolton Observatory Timeseries Graph |
n/a | 0 (1 Low) | 5 (1 Low) | 12 (2 Low) | 20 (2 Low) *2 | 31/07/2026 11:15:00 |
| Eastbourne Timeseries Graph |
73 (3 Low) | n/a | n/m | 4 (1 Low) | 8 (1 Low) *2 | 31/07/2026 01:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 01:00:00 |
| Horley Timeseries Graph |
n/m | 14 (1 Low) | n/m | 3 (1 Low) | 9 (1 Low) *2 | 31/07/2026 01:00:00 |
| Lullington Heath Timeseries Graph |
90 (3 Low) | 6 (1 Low) | 10 (1 Low) | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 02:15:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 26 (2 Low) *2 | 31/07/2026 02:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
78 (3 Low) | n/m | n/m | 3 (1 Low) | 8 (1 Low) *2 | 31/07/2026 01:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 30 (1 Low) | n/m | n/m | n/m | 30/07/2026 22:00:00 |
| Oxford St Ebbes Timeseries Graph |
76 (3 Low) | 37 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 01:00:00 |
| Portsmouth Timeseries Graph |
70 (3 Low) | 11 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 01:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 23 (1 Low) | n/m | 3 (1 Low) | 8 (1 Low) *2 | 31/07/2026 01:00:00 |
| Reading London Road Timeseries Graph |
n/m | 23 (1 Low) | n/m | n/m | 11 (1 Low) *1 | 30/07/2026 22:00:00 |
| Reading New Town Timeseries Graph |
74 (3 Low) | 13 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 01:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | n/m | 31/07/2026 01:00:00 |
| Rochester Stoke Timeseries Graph |
81 (3 Low) | 9 (1 Low) | 2 (1 Low) | 4 (1 Low) | 11 (1 Low) *2 | 31/07/2026 08:45:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 12 (1 Low) *2 | 31/07/2026 16:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 33 (1 Low) | n/m | 3 (1 Low) | 9 (1 Low) *2 | 31/07/2026 01:00:00 |
| Southampton Centre Timeseries Graph |
75 (3 Low) | 17 (1 Low) | 1 (1 Low) | 3 (1 Low) | 8 (1 Low) *2 | 30/07/2026 17:30:00 |
| Storrington Roadside Timeseries Graph |
n/m | 29 (1 Low) | n/m | 4 (1 Low) | 20 (2 Low) *2 | 31/07/2026 14:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 29 (1 Low) | n/m | 6 (1 Low) | n/m | 31/07/2026 16:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 31/07/2026 01:00:00 |
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 |
68 (3 Low) | 21 (1 Low) | 3 (1 Low) | 6 (1 Low) | 12 (1 Low) *1 | 31/07/2026 09:15:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 18 (1 Low) | n/m | n/m | 11 (1 Low) *1 | 31/07/2026 07:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 26 (1 Low) | n/m | 3 (1 Low) | 10 (1 Low) *1 | 31/07/2026 13:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
75 (3 Low) | 10 (1 Low) | n/m | n/m | n/m | 31/07/2026 16:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 45 (1 Low) | n/m | n/m | n/m | 30/07/2026 22:00:00 |
| Narberth Timeseries Graph |
69 (3 Low) | 2 (1 Low) | 2 (1 Low) | 4 (1 Low) | 9 (1 Low) *2 | 31/07/2026 16:45:00 |
| Newport Timeseries Graph |
n/m | 16 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 31/07/2026 16:00:00 |
| Port Talbot Margam Timeseries Graph |
65 (2 Low) | 18 (1 Low) | 2 (1 Low) | 6 (1 Low) | 20 (2 Low) *3 | 30/07/2026 21:30:00 |
| Swansea Roadside Timeseries Graph |
n/m | 16 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *1 | 31/07/2026 13:00:00 |
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 | 3 (1 Low) | 8 (1 Low) *2 | 31/07/2026 16:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 53 (1 Low) | n/m | n/m | n/m | 31/07/2026 14:00:00 |
| Bournemouth Timeseries Graph |
81 (3 Low) | 8 (1 Low) | n/m | n/a | n/m | 29/07/2026 09:00:00 |
| Bournemouth Bourne Valley Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 16:00:00 |
| Bridgwater A372 Westonzoyland Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 31/07/2026 16:00:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 01:00:00 |
| Bristol St Paul's Timeseries Graph |
75 (3 Low) | 15 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *1 | 31/07/2026 16:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 37 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 31/07/2026 16:00:00 |
| Charlton Mackrell Timeseries Graph |
76 (3 Low) | 7 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 31/07/2026 16:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | n/m | 31/07/2026 16:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 34 (1 Low) | n/m | n/a | n/m | 29/07/2026 01:00:00 |
| Exeter Roadside Timeseries Graph |
48 (2 Low) | 22 (1 Low) | n/m | n/m | n/m | 31/07/2026 16:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 8 (1 Low) *2 | 31/07/2026 16:00:00 |
| Honiton Timeseries Graph |
64 (2 Low) | 14 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 31/07/2026 16:00:00 |
| Plymouth Centre Timeseries Graph |
57 (2 Low) | 28 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 31/07/2026 16:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 19 (1 Low) | n/m | n/m | n/m | 30/07/2026 21:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 2 (1 Low) | 10 (1 Low) *1 | 31/07/2026 16:00:00 |
| Swindon Walcot Timeseries Graph |
80 (3 Low) | 15 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 16:00:00 |
| Yarner Wood Timeseries Graph |
71 (3 Low) | 2 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 31/07/2026 16:00:00 |
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 |
75 (3 Low) | n/m | n/m | n/m | n/m | 31/07/2026 11:00:00 |
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 |
| Bedworth Collycroft Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 8 (1 Low) *2 | 31/07/2026 16:00:00 |
| Birmingham A4540 Roadside Timeseries Graph |
58 (2 Low) | 42 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *2 | 31/07/2026 16:00:00 |
| Birmingham Hall Green Timeseries Graph |
69 (3 Low) | 26 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 14:00:00 |
| Birmingham Ladywood Timeseries Graph |
62 (2 Low) | 30 (1 Low) | 4 (1 Low) | 3 (1 Low) | 9 (1 Low) *2 | 31/07/2026 09:00:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 16:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
73 (3 Low) | 24 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 09:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 29 (1 Low) | n/m | 4 (1 Low) | n/m | 31/07/2026 16:00:00 |
| Coventry Allesley Timeseries Graph |
73 (3 Low) | 20 (1 Low) | n/m | 3 (1 Low) | 8 (1 Low) *2 | 31/07/2026 16:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 30 (1 Low) | n/m | 3 (1 Low) | 8 (1 Low) *2 | 31/07/2026 16:00:00 |
| Leamington Spa Timeseries Graph |
82 (3 Low) | 16 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 31/07/2026 10:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 21 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 16:00:00 |
| Leominster Timeseries Graph |
69 (3 Low) | 12 (1 Low) | n/m | n/m | n/m | 31/07/2026 16:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 46 (1 Low) | n/m | 4 (1 Low) | 12 (1 Low) *2 | 31/07/2026 16:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 8 (1 Low) *2 | 31/07/2026 16:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 49 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 31/07/2026 07:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
60 (2 Low) | 31 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 31/07/2026 07:00:00 |
| Telford Hollinswood Timeseries Graph |
82 (3 Low) | 25 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 31/07/2026 16:00:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 12 (1 Low) *2 | 31/07/2026 16:00:00 |
| Walsall Woodlands Timeseries Graph |
75 (3 Low) | 20 (1 Low) | n/m | n/m | n/m | 31/07/2026 16:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
63 (2 Low) | 24 (1 Low) | n/m | n/m | n/m | 31/07/2026 16:00:00 |
| Wolverhampton East Park Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 31/07/2026 16:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 8 (1 Low) *2 | 31/07/2026 16:00:00 |
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 |
75 (3 Low) | 20 (1 Low) | 2 (1 Low) | 3 (1 Low) | 10 (1 Low) *2 | 31/07/2026 09:15:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | n/m | 30/07/2026 24:00: |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 31/07/2026 16:00:00 |
| Bradford West Park Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 14 (1 Low) *2 | 31/07/2026 16:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
67 (3 Low) | 13 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 31/07/2026 13:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 42 (1 Low) | n/m | 4 (1 Low) | n/m | 31/07/2026 16:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 6 (1 Low) *2 | 31/07/2026 16:00:00 |
| High Muffles Timeseries Graph |
60 (2 Low) | 2 (1 Low) | n/m | 2 (1 Low) | 4 (1 Low) *2 | 31/07/2026 16:00:00 |
| Hull Freetown Timeseries Graph |
71 (3 Low) | 23 (1 Low) | 2 (1 Low) | 4 (1 Low) | 11 (1 Low) *2 | 31/07/2026 12:15:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 30 (1 Low) | n/m | 4 (1 Low) | 13 (1 Low) *2 | 31/07/2026 16:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
77 (3 Low) | 14 (1 Low) | n/m | 3 (1 Low) | 10 (1 Low) *2 | 31/07/2026 01:00:00 |
| Leeds Centre Timeseries Graph |
64 (2 Low) | 28 (1 Low) | 2 (1 Low) | 3 (1 Low) | 8 (1 Low) *2 | 31/07/2026 10:15:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 21 (1 Low) | n/m | n/a | n/a | 31/07/2026 01:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 10 (1 Low) *2 | 31/07/2026 16:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 25 (1 Low) | 2 (1 Low) | n/a | n/a | 31/07/2026 08:15:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 46 (1 Low) | n/m | 5 (1 Low) | n/m | 31/07/2026 16:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
70 (3 Low) | 23 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 31/07/2026 17:00:00 |
| Sheffield Tinsley Timeseries Graph |
64 (2 Low) | 43 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *2 | 31/07/2026 16:00:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 11 (1 Low) *2 | 31/07/2026 16:00:00 |
| York Bootham Timeseries Graph |
61 (2 Low) | 18 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *1 | 31/07/2026 16:00:00 |
| York Fishergate Timeseries Graph |
n/m | 24 (1 Low) | n/m | 1 (1 Low) | 11 (1 Low) *1 | 31/07/2026 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