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 10am Tue 28th Oct 2025
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 | 28/10/2025 10:00 |
| Bush Estate Timeseries Graph |
66 (2 Low) | 5 (1 Low) | n/m | n/m | n/m | 28/10/2025 08:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | n/m | 27/10/2025 11:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 51 (1 Low) | n/m | n/m | n/m | 27/10/2025 10:00 |
| Edinburgh St Leonards Timeseries Graph |
62 (2 Low) | 31 (1 Low) | 5 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 27/10/2025 20:45 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 60 (1 Low) | n/m | n/m | n/m | 27/10/2025 18:00 |
| Glasgow High Street Timeseries Graph |
n/m | 48 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 28/10/2025 10:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 79 (2 Low) | n/m | n/m | n/m | 27/10/2025 18:00 |
| Glasgow Townhead Timeseries Graph |
63 (2 Low) | 44 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 28/10/2025 10:00 |
| Grangemouth Timeseries Graph |
n/m | 19 (1 Low) | 4 (1 Low) | 4 (1 Low) | 8 (1 Low) *1 | 27/10/2025 14:15 |
| Grangemouth Moray Timeseries Graph |
n/m | 19 (1 Low) | n/m | n/m | n/m | 27/10/2025 18:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 51 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 28/10/2025 10:00 |
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 |
70 (3 Low) | 14 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 27/10/2025 24:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 16 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 27/10/2025 24:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 51 (1 Low) | n/m | 6 (1 Low) | n/m | 27/10/2025 24:00 |
| Derby Stockbrook Park Timeseries Graph |
59 (2 Low) | n/m | n/m | 6 (1 Low) | 11 (1 Low) *2 | 27/10/2025 24:00 |
| Ladybower Timeseries Graph |
76 (3 Low) | 5 (1 Low) | 4 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 28/10/2025 09:15 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 59 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 27/10/2025 24:00 |
| Leicester University Timeseries Graph |
59 (2 Low) | 39 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 27/10/2025 24:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 45 (1 Low) | n/m | n/m | n/m | 27/10/2025 19:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 27/10/2025 24:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 27/10/2025 24:00 |
| Northampton Spring Park Timeseries Graph |
66 (2 Low) | 12 (1 Low) | n/m | 10 (1 Low) | n/m | 27/10/2025 24:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 27/10/2025 24:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
61 (2 Low) | 34 (1 Low) | 2 (1 Low) | 5 (1 Low) | 10 (1 Low) *2 | 27/10/2025 19:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 44 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 27/10/2025 24:00 |
| Tallington Timeseries Graph |
66 (2 Low) | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 27/10/2025 24:00 |
| Toft Newton Timeseries Graph |
61 (2 Low) | 10 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 27/10/2025 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 | 16 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 28/10/2025 01:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 39 (1 Low) | n/m | n/m | n/m | 27/10/2025 19:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 36 (1 Low) | n/m | 7 (1 Low) | n/m | 27/10/2025 24:00 |
| Norwich Lakenfields Timeseries Graph |
60 (2 Low) | 36 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 27/10/2025 24:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 27/10/2025 24:00 |
| Sibton Timeseries Graph |
58 (2 Low) | n/m | n/m | 3 (1 Low) | 6 (1 Low) *2 | 28/10/2025 02:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 28/10/2025 02:00 |
| Southend-on-Sea Timeseries Graph |
58 (2 Low) | 18 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 28/10/2025 02:00 |
| St Osyth Timeseries Graph |
66 (2 Low) | 12 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 28/10/2025 02:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 31 (1 Low) | n/m | 7 (1 Low) | n/a | 28/10/2025 03:00 |
| Thurrock Timeseries Graph |
60 (2 Low) | 37 (1 Low) | 2 (1 Low) | 5 (1 Low) | 10 (1 Low) *2 | 28/10/2025 08:30 |
| Weybourne Timeseries Graph |
64 (2 Low) | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 27/10/2025 24:00 |
| Wicken Fen Timeseries Graph |
62 (2 Low) | 8 (1 Low) | 4 (1 Low) | 3 (1 Low) | 7 (1 Low) *2 | 28/10/2025 04:45 |
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 | 33 (1 Low) | n/m | 10 (1 Low) | 17 (2 Low) *1 | 27/10/2025 24:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 19 (2 Low) *1 | 28/10/2025 10:00 |
| Haringey Roadside Timeseries Graph |
n/m | 44 (1 Low) | n/m | n/m | n/m | 27/10/2025 20:00 |
| London Bexley Timeseries Graph |
n/m | 25 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 28/10/2025 02:00 |
| London Bloomsbury Timeseries Graph |
60 (2 Low) | 43 (1 Low) | 2 (1 Low) | 6 (1 Low) | 13 (1 Low) *2 | 28/10/2025 08:15 |
| London Farringdon Street Timeseries Graph |
n/m | 37 (1 Low) | n/m | 6 (1 Low) | n/m | 28/10/2025 02:00 |
| London Haringey Priory Park South Timeseries Graph |
64 (2 Low) | 25 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 28/10/2025 01:00 |
| London Harlington Timeseries Graph |
64 (2 Low) | 40 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 28/10/2025 01:00 |
| London Hillingdon Timeseries Graph |
59 (2 Low) | 52 (1 Low) | n/m | 5 (1 Low) | 13 (1 Low) *2 | 28/10/2025 01:00 |
| London Honor Oak Park Timeseries Graph |
72 (3 Low) | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 28/10/2025 02:00 |
| London Marylebone Road Timeseries Graph |
48 (2 Low) | 47 (1 Low) | 3 (1 Low) | 8 (1 Low) | 18 (2 Low) *1 | 28/10/2025 07:45 |
| London N. Kensington Timeseries Graph |
67 (3 Low) | 29 (1 Low) | 3 (1 Low) | 5 (1 Low) | 10 (1 Low) *2 | 27/10/2025 11:30 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 28/10/2025 02:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 10 (1 Low) *2 | 28/10/2025 01:00 |
| London Westminster Timeseries Graph |
61 (2 Low) | 28 (1 Low) | n/m | n/a | n/m | 31/12/2023 24:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 29 (1 Low) | n/m | n/m | 16 (1 Low) *1 | 27/10/2025 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 |
68 (3 Low) | 22 (1 Low) | n/m | n/m | n/m | 28/10/2025 10:00 |
| Inverness Timeseries Graph |
n/m | 56 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 28/10/2025 08:00 |
| Lerwick Timeseries Graph |
76 (3 Low) | n/m | n/m | n/m | n/m | 27/10/2025 15:00 |
| Strathvaich Timeseries Graph |
72 (3 Low) | n/m | n/m | n/m | n/m | 27/10/2025 11:00 |
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 |
60 (2 Low) | 36 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 28/10/2025 10:00 |
| Kielder Water Timeseries Graph |
61 (2 Low) | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 28/10/2025 10:00 |
| Middlesbrough Timeseries Graph |
60 (2 Low) | 39 (1 Low) | 6 (1 Low) | 3 (1 Low) | 9 (1 Low) *1 | 27/10/2025 10:15 |
| Newcastle Centre Timeseries Graph |
59 (2 Low) | 53 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *1 | 28/10/2025 10:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 86 (2 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 28/10/2025 10:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 40 (1 Low) | n/m | 3 (1 Low) | n/m | 27/10/2025 24:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 33 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *1 | 28/10/2025 10:00 |
| Sunderland Silksworth Timeseries Graph |
63 (2 Low) | 35 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 28/10/2025 10:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 51 (1 Low) | n/m | 4 (1 Low) | n/m | 28/10/2025 10:00 |
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 |
73 (3 Low) | 49 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 28/10/2025 10:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 67 (1 Low) | n/m | n/m | n/m | 28/10/2025 08:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | n/m | 27/10/2025 22:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 42 (1 Low) | n/m | n/m | n/m | 27/10/2025 17:00 |
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 |
73 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 28/10/2025 06:00 |
| Wrexham Timeseries Graph |
n/m | 26 (1 Low) | 2 (1 Low) | 5 (1 Low) | 9 (1 Low) *2 | 27/10/2025 19:00 |
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 | 20 (1 Low) | n/m | 7 (1 Low) | n/m | 27/10/2025 24:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 46 (1 Low) | n/m | n/m | n/m | 27/10/2025 18:00 |
| Blackburn Audley Park Timeseries Graph |
64 (2 Low) | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 28/10/2025 10:00 |
| Blackpool Marton Timeseries Graph |
69 (3 Low) | 15 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 28/10/2025 10:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 28/10/2025 10:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | n/m | 14 (1 Low) *1 | 27/10/2025 20:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 36 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *1 | 28/10/2025 10:00 |
| Crewe Coppenhall Timeseries Graph |
66 (2 Low) | 31 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 27/10/2025 24:00 |
| Glazebury Timeseries Graph |
69 (3 Low) | 15 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 27/10/2025 24:00 |
| Liverpool Speke Timeseries Graph |
68 (3 Low) | 15 (1 Low) | 4 (1 Low) | 7 (1 Low) | 17 (2 Low) *1 | 27/10/2025 21:30 |
| Liverpool Thirlmere Park Timeseries Graph |
70 (3 Low) | n/m | n/m | 7 (1 Low) | 15 (1 Low) *2 | 27/10/2025 24:00 |
| Manchester Piccadilly Timeseries Graph |
n/a | 33 (1 Low) | 2 (1 Low) | 6 (1 Low) | 10 (1 Low) *2 | 28/10/2025 09:15 |
| Manchester Sharston Timeseries Graph |
63 (2 Low) | 29 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 27/10/2025 24:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 27/10/2025 24:00 |
| Preston Timeseries Graph |
65 (2 Low) | 34 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 28/10/2025 10:00 |
| Salford Eccles Timeseries Graph |
70 (3 Low) | 26 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 27/10/2025 24:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 43 (1 Low) | n/m | n/m | n/m | 27/10/2025 17:00 |
| St Helens Linkway Timeseries Graph |
n/m | n/a | n/m | n/m | 13 (1 Low) *1 | 13/10/2025 20:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 27/10/2025 24:00 |
| Warrington Timeseries Graph |
n/m | n/a | n/m | 5 (1 Low) | 14 (1 Low) *1 | 27/10/2025 24:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 42 (1 Low) | n/m | n/m | n/m | 27/10/2025 17:00 |
| Wigan Centre Timeseries Graph |
68 (3 Low) | 41 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 27/10/2025 24:00 |
| Wirral Tranmere Timeseries Graph |
68 (3 Low) | 15 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 27/10/2025 24:00 |
Northern Ireland
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Armagh Roadside Timeseries Graph |
n/m | 66 (1 Low) | n/m | n/m | n/a | 27/10/2025 17:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 33 (1 Low) | n/m | n/m | n/m | 27/10/2025 16:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 19 (1 Low) | 18 (1 Low) | n/m | n/m | 27/10/2025 13:15 |
| Belfast Centre Timeseries Graph |
49 (2 Low) | 50 (1 Low) | 2 (1 Low) | 6 (1 Low) | 12 (1 Low) *2 | 27/10/2025 20:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 71 (2 Low) | n/m | n/m | 18 (2 Low) *1 | 27/10/2025 15:00 |
| Derry Rosemount Timeseries Graph |
63 (2 Low) | 15 (1 Low) | 3 (1 Low) | 5 (1 Low) | 12 (1 Low) *1 | 27/10/2025 18:15 |
| Lough Navar Timeseries Graph |
63 (2 Low) | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 28/10/2025 10:00 |
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 | 48 (1 Low) | n/m | n/m | n/m | 27/10/2025 17:00 |
| Eskdalemuir Timeseries Graph |
59 (2 Low) | 2 (1 Low) | n/m | n/m | n/m | 27/10/2025 16:00 |
| Peebles Timeseries Graph |
67 (3 Low) | 25 (1 Low) | n/m | n/m | n/m | 28/10/2025 07:00 |
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 | 27/10/2025 24:00 |
| Brighton Preston Park Timeseries Graph |
66 (2 Low) | 20 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 28/10/2025 03:00 |
| Chatham Roadside Timeseries Graph |
n/m | 18 (1 Low) | n/m | 3 (1 Low) | 13 (1 Low) *1 | 27/10/2025 10:00 |
| Chilbolton Observatory Timeseries Graph |
70 (3 Low) | 2 (1 Low) | 2 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 27/10/2025 16:15 |
| Eastbourne Timeseries Graph |
73 (3 Low) | 8 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 28/10/2025 03:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 28/10/2025 01:00 |
| Horley Timeseries Graph |
n/m | 20 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 28/10/2025 02:00 |
| Lullington Heath Timeseries Graph |
81 (3 Low) | 5 (1 Low) | 1 (1 Low) | 5 (1 Low) | 10 (1 Low) *2 | 27/10/2025 16:45 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 11 (1 Low) *2 | 28/10/2025 02:00 |
| Milton Keynes Civic Centre Timeseries Graph |
64 (2 Low) | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 27/10/2025 24:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 19/08/2025 16:00 |
| Oxford St Ebbes Timeseries Graph |
63 (2 Low) | 24 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 27/10/2025 24:00 |
| Portsmouth Timeseries Graph |
69 (3 Low) | 11 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 28/10/2025 01:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 33 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 28/10/2025 01:00 |
| Reading London Road Timeseries Graph |
n/m | 36 (1 Low) | n/m | n/m | 15 (1 Low) *1 | 27/10/2025 17:00 |
| Reading New Town Timeseries Graph |
56 (2 Low) | 23 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 28/10/2025 01:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 28/10/2025 01:00 |
| Rochester Stoke Timeseries Graph |
69 (3 Low) | 13 (1 Low) | 2 (1 Low) | 5 (1 Low) | 9 (1 Low) *2 | 27/10/2025 10:15 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 13 (1 Low) *2 | 28/10/2025 01:00 |
| Southampton A33 Timeseries Graph |
n/m | 61 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 27/10/2025 24:00 |
| Southampton Centre Timeseries Graph |
58 (2 Low) | 40 (1 Low) | 8 (1 Low) | 7 (1 Low) | 14 (1 Low) *2 | 28/10/2025 09:45 |
| Storrington Roadside Timeseries Graph |
n/m | 25 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 28/10/2025 02:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 42 (1 Low) | n/m | 9 (1 Low) | n/m | 28/10/2025 02:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 12 (1 Low) *2 | 28/10/2025 03:00 |
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 |
71 (3 Low) | 21 (1 Low) | 2 (1 Low) | 9 (1 Low) | 16 (1 Low) *1 | 27/10/2025 10:15 |
| Cardiff Newport Road Timeseries Graph |
n/m | 27 (1 Low) | n/m | n/m | 16 (1 Low) *1 | 27/10/2025 19:00 |
| Chepstow A48 Timeseries Graph |
n/m | 49 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *1 | 27/10/2025 24:00 |
| Cwmbran Crownbridge Timeseries Graph |
76 (3 Low) | 12 (1 Low) | n/m | n/m | n/m | 28/10/2025 06:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 69 (2 Low) | n/m | n/m | n/m | 28/10/2025 07:00 |
| Narberth Timeseries Graph |
71 (3 Low) | 2 (1 Low) | 1 (1 Low) | 6 (1 Low) | 14 (1 Low) *2 | 28/10/2025 01:30 |
| Newport Timeseries Graph |
n/m | 16 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 27/10/2025 24:00 |
| Port Talbot Margam Timeseries Graph |
71 (3 Low) | 24 (1 Low) | 1 (1 Low) | 5 (1 Low) | 19 (2 Low) *3 | 27/10/2025 11:00 |
| Swansea Roadside Timeseries Graph |
n/m | 42 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *1 | 28/10/2025 10:00 |
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) | 14 (1 Low) *2 | 27/10/2025 15:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | n/m | 28/10/2025 08:00 |
| Bournemouth Timeseries Graph |
64 (2 Low) | 18 (1 Low) | n/m | 8 (1 Low) | n/m | 27/10/2025 24:00 |
| Bristol St Paul's Timeseries Graph |
70 (3 Low) | 19 (1 Low) | n/m | 6 (1 Low) | 16 (1 Low) *1 | 28/10/2025 01:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 32 (1 Low) | n/m | 7 (1 Low) | 15 (1 Low) *2 | 28/10/2025 04:00 |
| Charlton Mackrell Timeseries Graph |
67 (3 Low) | 4 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 27/10/2025 24:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | n/m | 27/10/2025 24:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 16 (1 Low) | n/m | 7 (1 Low) | n/m | 28/10/2025 02:00 |
| Exeter Roadside Timeseries Graph |
70 (3 Low) | 16 (1 Low) | n/m | n/m | n/m | 28/10/2025 08:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 12 (1 Low) *2 | 27/10/2025 24:00 |
| Honiton Timeseries Graph |
64 (2 Low) | 9 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 27/10/2025 24:00 |
| Plymouth Centre Timeseries Graph |
66 (2 Low) | 16 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 28/10/2025 10:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 27 (1 Low) | n/m | n/m | n/m | 27/10/2025 17:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 13 (1 Low) *1 | 27/10/2025 24:00 |
| Swindon Walcot Timeseries Graph |
67 (3 Low) | 16 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 28/10/2025 02:00 |
| Yarner Wood Timeseries Graph |
70 (3 Low) | 1 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 27/10/2025 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 |
82 (3 Low) | n/m | n/m | n/m | n/m | 27/10/2025 14:00 |
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) | 42 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 27/10/2025 24:00 |
| Birmingham Hall Green Timeseries Graph |
69 (3 Low) | 12 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 27/10/2025 24:00 |
| Birmingham Ladywood Timeseries Graph |
68 (3 Low) | 17 (1 Low) | 2 (1 Low) | 5 (1 Low) | 10 (1 Low) *2 | 28/10/2025 01:30 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 27/10/2025 24:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
67 (3 Low) | 50 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 27/10/2025 24:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 19 (1 Low) | n/m | 5 (1 Low) | n/m | 27/10/2025 24:00 |
| Coventry Allesley Timeseries Graph |
66 (2 Low) | 23 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 27/10/2025 24:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 49 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 27/10/2025 24:00 |
| Leamington Spa Timeseries Graph |
63 (2 Low) | 22 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 27/10/2025 24:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 21 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 27/10/2025 24:00 |
| Leominster Timeseries Graph |
68 (3 Low) | 3 (1 Low) | n/m | n/m | n/m | 27/10/2025 11:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 40 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 27/10/2025 24:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 27/10/2025 24:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 64 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 27/10/2025 24:00 |
| Stoke-on-Trent Centre Timeseries Graph |
61 (2 Low) | 42 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 27/10/2025 24:00 |
| Telford Hollinswood Timeseries Graph |
74 (3 Low) | 10 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 27/10/2025 24:00 |
| Walsall Woodlands Timeseries Graph |
70 (3 Low) | 17 (1 Low) | n/m | n/m | n/m | 28/10/2025 07:00 |
| West Bromwich Kenrick Park Timeseries Graph |
65 (2 Low) | 32 (1 Low) | n/m | n/m | n/m | 28/10/2025 07:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 13 (1 Low) *2 | 27/10/2025 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 |
67 (3 Low) | 15 (1 Low) | 2 (1 Low) | 3 (1 Low) | 7 (1 Low) *2 | 28/10/2025 10:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 47 (1 Low) | n/m | n/m | n/m | 27/10/2025 18:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 28/10/2025 10:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
66 (2 Low) | 24 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 28/10/2025 10:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 36 (1 Low) | n/m | 4 (1 Low) | n/m | 27/10/2025 24:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 28/10/2025 10:00 |
| High Muffles Timeseries Graph |
60 (2 Low) | 9 (1 Low) | n/m | 2 (1 Low) | 4 (1 Low) *2 | 28/10/2025 10:00 |
| Hull Freetown Timeseries Graph |
62 (2 Low) | 57 (1 Low) | 3 (1 Low) | 5 (1 Low) | 10 (1 Low) *2 | 27/10/2025 10:45 |
| Hull Holderness Road Timeseries Graph |
n/m | 62 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 28/10/2025 10:00 |
| Immingham Woodlands Avenue Timeseries Graph |
58 (2 Low) | 30 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 27/10/2025 24:00 |
| Leeds Centre Timeseries Graph |
62 (2 Low) | 37 (1 Low) | 2 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 27/10/2025 22:15 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 33 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *1 | 28/10/2025 10:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 27/10/2025 24:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 43 (1 Low) | 2 (1 Low) | 6 (1 Low) | 10 (1 Low) *1 | 27/10/2025 19:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 39 (1 Low) | n/m | 6 (1 Low) | n/m | 27/10/2025 24:00 |
| Sheffield Devonshire Green Timeseries Graph |
63 (2 Low) | 18 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 27/10/2025 24:00 |
| Sheffield Tinsley Timeseries Graph |
59 (2 Low) | 50 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 27/10/2025 24:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 28/10/2025 10:00 |
| York Bootham Timeseries Graph |
55 (2 Low) | 46 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *1 | 28/10/2025 10:00 |
| York Fishergate Timeseries Graph |
n/m | 59 (1 Low) | n/m | 2 (1 Low) | 15 (1 Low) *1 | 28/10/2025 10:00 |
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