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 10pm Thu 18th Sep 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 |
69 (3 Low) | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 18/09/2025 16:00:00 |
| Bush Estate Timeseries Graph |
72 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 18/09/2025 17:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 16 (1 Low) | n/m | n/m | n/m | 18/09/2025 20:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 34 (1 Low) | n/m | n/m | n/m | 18/09/2025 20:00:00 |
| Edinburgh St Leonards Timeseries Graph |
59 (2 Low) | 20 (1 Low) | n/a | 6 (1 Low) | 12 (1 Low) *2 | 10/09/2025 24:30: |
| Glasgow Great Western Road Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 18/09/2025 21:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 22 (1 Low) | n/m | 7 (1 Low) | 16 (1 Low) *2 | 18/09/2025 15:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 69 (2 Low) | n/m | n/m | n/m | 18/09/2025 22:00:00 |
| Glasgow Townhead Timeseries Graph |
72 (3 Low) | 20 (1 Low) | n/m | 7 (1 Low) | 15 (1 Low) *2 | 18/09/2025 15:00:00 |
| Grangemouth Timeseries Graph |
n/m | 18 (1 Low) | 3 (1 Low) | 7 (1 Low) | 15 (1 Low) *1 | 18/09/2025 04:15:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 6 (1 Low) | n/m | n/m | n/m | 18/09/2025 20:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 30 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 18/09/2025 16:00:00 |
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 |
58 (2 Low) | 9 (1 Low) | n/m | 1 (1 Low) | 3 (1 Low) *2 | 18/09/2025 22:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 14 (1 Low) | n/m | 1 (1 Low) | 4 (1 Low) *2 | 18/09/2025 22:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 55 (1 Low) | n/m | 2 (1 Low) | n/m | 18/09/2025 22:00:00 |
| Derby Stockbrook Park Timeseries Graph |
39 (2 Low) | n/m | n/m | 2 (1 Low) | 3 (1 Low) *2 | 18/09/2025 01:00:00 |
| Ladybower Timeseries Graph |
64 (2 Low) | 2 (1 Low) | 2 (1 Low) | 2 (1 Low) | 4 (1 Low) *2 | 18/09/2025 15:15:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 21 (1 Low) | n/m | 2 (1 Low) | 4 (1 Low) *2 | 18/09/2025 01:00:00 |
| Leicester University Timeseries Graph |
39 (2 Low) | 17 (1 Low) | n/m | 1 (1 Low) | 3 (1 Low) *2 | 18/09/2025 01:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 31 (1 Low) | n/m | n/m | n/m | 18/09/2025 08:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 1 (1 Low) | 3 (1 Low) *2 | 18/09/2025 01:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 2 (1 Low) | 4 (1 Low) *2 | 18/09/2025 01:00:00 |
| Northampton Spring Park Timeseries Graph |
44 (2 Low) | 7 (1 Low) | n/m | 6 (1 Low) | n/m | 18/09/2025 01:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 1 (1 Low) | 4 (1 Low) *2 | 18/09/2025 01:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
39 (2 Low) | 24 (1 Low) | 1 (1 Low) | 2 (1 Low) | 5 (1 Low) *2 | 18/09/2025 17:30:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 55 (1 Low) | n/m | 2 (1 Low) | 5 (1 Low) *2 | 18/09/2025 01:00:00 |
| Tallington Timeseries Graph |
47 (2 Low) | n/m | n/m | 2 (1 Low) | 3 (1 Low) *2 | 18/09/2025 01:00:00 |
| Toft Newton Timeseries Graph |
42 (2 Low) | 5 (1 Low) | n/m | 2 (1 Low) | 3 (1 Low) *2 | 18/09/2025 01:00:00 |
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 | 25 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 18/09/2025 01:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 23 (1 Low) | n/m | n/m | n/m | 18/09/2025 18:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 13 (1 Low) | n/m | 2 (1 Low) | n/m | 18/09/2025 01:00:00 |
| Norwich Lakenfields Timeseries Graph |
44 (2 Low) | 8 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 18/09/2025 01:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 2 (1 Low) | 4 (1 Low) *2 | 18/09/2025 01:00:00 |
| Sibton Timeseries Graph |
44 (2 Low) | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 18/09/2025 22:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 6 (1 Low) *2 | 18/09/2025 01:00:00 |
| Southend-on-Sea Timeseries Graph |
54 (2 Low) | 7 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 18/09/2025 01:00:00 |
| St Osyth Timeseries Graph |
54 (2 Low) | 5 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 18/09/2025 01:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 15 (1 Low) | n/m | 5 (1 Low) | 5 (1 Low) *1 | 18/09/2025 01:00:00 |
| Thurrock Timeseries Graph |
57 (2 Low) | 16 (1 Low) | 2 (1 Low) | 3 (1 Low) | 5 (1 Low) *2 | 18/09/2025 07:30:00 |
| Weybourne Timeseries Graph |
46 (2 Low) | n/m | n/m | 2 (1 Low) | 3 (1 Low) *2 | 18/09/2025 01:00:00 |
| Wicken Fen Timeseries Graph |
41 (2 Low) | 3 (1 Low) | 1 (1 Low) | 2 (1 Low) | 4 (1 Low) *2 | 18/09/2025 15:30:00 |
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 | 28 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *1 | 18/09/2025 01:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 17 (2 Low) *1 | 18/09/2025 22:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 18/09/2025 19:00:00 |
| London Bexley Timeseries Graph |
n/m | 10 (1 Low) | n/m | 3 (1 Low) | 4 (1 Low) *2 | 18/09/2025 22:00:00 |
| London Bloomsbury Timeseries Graph |
51 (2 Low) | 13 (1 Low) | 2 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 18/09/2025 21:45:00 |
| London Haringey Priory Park South Timeseries Graph |
50 (2 Low) | 5 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 18/09/2025 01:00:00 |
| London Harlington Timeseries Graph |
44 (2 Low) | 36 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 18/09/2025 01:00:00 |
| London Hillingdon Timeseries Graph |
42 (2 Low) | 41 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 18/09/2025 01:00:00 |
| London Honor Oak Park Timeseries Graph |
58 (2 Low) | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 18/09/2025 22:00:00 |
| London Marylebone Road Timeseries Graph |
38 (2 Low) | 45 (1 Low) | 3 (1 Low) | 4 (1 Low) | 17 (2 Low) *1 | 18/09/2025 18:30:00 |
| London N. Kensington Timeseries Graph |
58 (2 Low) | 9 (1 Low) | 1 (1 Low) | 3 (1 Low) | 6 (1 Low) *2 | 18/09/2025 13:00:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 18/09/2025 22:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 6 (1 Low) *2 | 18/09/2025 01:00:00 |
| London Westminster Timeseries Graph |
44 (2 Low) | 10 (1 Low) | n/m | n/a | n/m | 21/07/2025 16:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 12 (1 Low) | n/m | n/m | 8 (1 Low) *1 | 18/09/2025 22:00:00 |
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 |
64 (2 Low) | 20 (1 Low) | n/m | n/m | n/m | 18/09/2025 04:00:00 |
| Inverness Timeseries Graph |
n/m | 13 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 18/09/2025 05:00:00 |
| Lerwick Timeseries Graph |
71 (3 Low) | n/m | n/m | n/m | n/m | 18/09/2025 18:00:00 |
| Strathvaich Timeseries Graph |
78 (3 Low) | n/m | n/m | n/m | n/m | 17/09/2025 24:00: |
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 |
65 (2 Low) | 9 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 18/09/2025 15:00:00 |
| Kielder Water Timeseries Graph |
68 (3 Low) | n/m | n/m | 7 (1 Low) | 13 (1 Low) *2 | 18/09/2025 17:00:00 |
| Middlesbrough Timeseries Graph |
59 (2 Low) | 9 (1 Low) | 2 (1 Low) | 2 (1 Low) | 9 (1 Low) *1 | 17/09/2025 13:15:00 |
| Newcastle Centre Timeseries Graph |
61 (2 Low) | 21 (1 Low) | n/m | 8 (1 Low) | 17 (2 Low) *1 | 18/09/2025 16:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 39 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 18/09/2025 17:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 13 (1 Low) | n/m | 4 (1 Low) | n/m | 18/09/2025 17:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 20 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *1 | 18/09/2025 21:00:00 |
| Sunderland Silksworth Timeseries Graph |
67 (3 Low) | 9 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 18/09/2025 16:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 20 (1 Low) | n/m | 6 (1 Low) | n/m | 18/09/2025 17:00:00 |
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 |
68 (3 Low) | 21 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 18/09/2025 07:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | n/m | 18/09/2025 19:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/m | n/m | 18/09/2025 22:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 19 (1 Low) | n/m | n/m | n/m | 18/09/2025 21:00:00 |
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 |
58 (2 Low) | 2 (1 Low) | n/m | n/m | n/m | 18/09/2025 05:00:00 |
| Wrexham Timeseries Graph |
n/m | 34 (1 Low) | 3 (1 Low) | 3 (1 Low) | 6 (1 Low) *2 | 18/09/2025 09:15:00 |
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 | 42 (1 Low) | n/m | 4 (1 Low) | n/m | 18/09/2025 20:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 20 (1 Low) | n/m | n/m | n/m | 18/09/2025 15:00:00 |
| Blackburn Audley Park Timeseries Graph |
57 (2 Low) | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 18/09/2025 15:00:00 |
| Blackpool Marton Timeseries Graph |
67 (3 Low) | 8 (1 Low) | n/m | 8 (1 Low) | 19 (2 Low) *2 | 18/09/2025 12:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | n/m | 18/09/2025 12:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 18/09/2025 09:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 19 (1 Low) | n/m | 9 (1 Low) | 22 (2 Low) *1 | 18/09/2025 14:00:00 |
| Crewe Coppenhall Timeseries Graph |
58 (2 Low) | 12 (1 Low) | n/m | 2 (1 Low) | 5 (1 Low) *2 | 18/09/2025 22:00:00 |
| Glazebury Timeseries Graph |
56 (2 Low) | 16 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 18/09/2025 22:00:00 |
| Liverpool Speke Timeseries Graph |
67 (3 Low) | 21 (1 Low) | 48 (1 Low) | 6 (1 Low) | 11 (1 Low) *1 | 18/09/2025 06:00:00 |
| Liverpool Thirlmere Park Timeseries Graph |
53 (2 Low) | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 18/09/2025 20:00:00 |
| Manchester Piccadilly Timeseries Graph |
46 (2 Low) | 41 (1 Low) | 2 (1 Low) | 5 (1 Low) | 8 (1 Low) *2 | 18/09/2025 03:45:00 |
| Manchester Sharston Timeseries Graph |
43 (2 Low) | 23 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 18/09/2025 22:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | n/m | 18/09/2025 22:00:00 |
| Preston Timeseries Graph |
53 (2 Low) | 28 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 18/09/2025 12:00:00 |
| Salford Eccles Timeseries Graph |
58 (2 Low) | 29 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 18/09/2025 22:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 39 (1 Low) | n/m | n/m | n/m | 18/09/2025 12:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 60 (1 Low) | n/m | n/m | 9 (1 Low) *1 | 18/09/2025 09:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 18/09/2025 20:00:00 |
| Warrington Timeseries Graph |
n/m | 24 (1 Low) | n/m | 2 (1 Low) | 9 (1 Low) *1 | 18/09/2025 22:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 51 (1 Low) | n/m | n/m | n/m | 18/09/2025 09:00:00 |
| Wigan Centre Timeseries Graph |
59 (2 Low) | 44 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 18/09/2025 22:00:00 |
| Wirral Tranmere Timeseries Graph |
64 (2 Low) | 27 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 18/09/2025 20:00:00 |
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 | 24 (2 Low) *1 | 18/09/2025 08:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 35 (1 Low) | n/m | n/m | n/m | 18/09/2025 16:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 20 (1 Low) | 3 (1 Low) | n/m | n/m | 17/09/2025 22:30:00 |
| Belfast Centre Timeseries Graph |
55 (2 Low) | 31 (1 Low) | 1 (1 Low) | 8 (1 Low) | 18 (2 Low) *2 | 18/09/2025 19:15:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 75 (2 Low) | n/m | n/m | 24 (2 Low) *1 | 18/09/2025 16:00:00 |
| Derry Rosemount Timeseries Graph |
70 (3 Low) | 24 (1 Low) | 2 (1 Low) | 5 (1 Low) | 18 (2 Low) *1 | 18/09/2025 16:45:00 |
| Lough Navar Timeseries Graph |
60 (2 Low) | n/m | n/m | 7 (1 Low) | 13 (1 Low) *2 | 18/09/2025 09:00:00 |
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 | 22 (1 Low) | n/m | n/m | n/m | 18/09/2025 10:00:00 |
| Eskdalemuir Timeseries Graph |
65 (2 Low) | 2 (1 Low) | n/m | n/m | n/m | 18/09/2025 05:00:00 |
| Peebles Timeseries Graph |
73 (3 Low) | 3 (1 Low) | n/m | n/m | n/m | 18/09/2025 11:00:00 |
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 |
| Brighton Preston Park Timeseries Graph |
58 (2 Low) | 8 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 18/09/2025 09:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 21 (1 Low) | n/m | n/a | n/a | 12/09/2025 01:00:00 |
| Chilbolton Observatory Timeseries Graph |
60 (2 Low) | 2 (1 Low) | 1 (1 Low) | 3 (1 Low) | 4 (1 Low) *2 | 17/09/2025 24:30: |
| Eastbourne Timeseries Graph |
65 (2 Low) | 6 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 18/09/2025 09:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 18/09/2025 01:00:00 |
| Horley Timeseries Graph |
n/m | 23 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 18/09/2025 01:00:00 |
| Lullington Heath Timeseries Graph |
68 (3 Low) | 12 (1 Low) | 1 (1 Low) | 5 (1 Low) | 9 (1 Low) *2 | 18/09/2025 02:45:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 18/09/2025 01:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
49 (2 Low) | n/m | n/m | 2 (1 Low) | 4 (1 Low) *2 | 18/09/2025 01:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 19/08/2025 17:00:00 |
| Oxford St Ebbes Timeseries Graph |
45 (2 Low) | 11 (1 Low) | n/m | 2 (1 Low) | 4 (1 Low) *2 | 18/09/2025 01:00:00 |
| Portsmouth Timeseries Graph |
55 (2 Low) | 24 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 18/09/2025 07:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 33 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 18/09/2025 07:00:00 |
| Reading London Road Timeseries Graph |
n/m | 6 (1 Low) | n/m | n/m | 11 (1 Low) *1 | 18/09/2025 22:00:00 |
| Reading New Town Timeseries Graph |
49 (2 Low) | 7 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 18/09/2025 01:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | n/m | 18/09/2025 01:00:00 |
| Rochester Stoke Timeseries Graph |
56 (2 Low) | 11 (1 Low) | 1 (1 Low) | 3 (1 Low) | 5 (1 Low) *2 | 18/09/2025 16:45:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 7 (1 Low) *2 | 18/09/2025 01:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 22 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 18/09/2025 09:00:00 |
| Southampton Centre Timeseries Graph |
55 (2 Low) | 28 (1 Low) | 1 (1 Low) | 5 (1 Low) | 10 (1 Low) *2 | 18/09/2025 20:15:00 |
| Storrington Roadside Timeseries Graph |
n/m | 10 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 18/09/2025 08:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 27 (1 Low) | n/m | 7 (1 Low) | n/m | 18/09/2025 01:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 14 (1 Low) *2 | 18/09/2025 09:00:00 |
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 |
45 (2 Low) | 15 (1 Low) | 1 (1 Low) | 4 (1 Low) | 7 (1 Low) *1 | 18/09/2025 18:30:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 14 (1 Low) | n/m | n/m | 7 (1 Low) *1 | 18/09/2025 08:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 22 (1 Low) | n/m | 3 (1 Low) | 4 (1 Low) *1 | 18/09/2025 01:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
51 (2 Low) | 12 (1 Low) | n/m | n/m | n/m | 17/09/2025 23:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 18/09/2025 19:00:00 |
| Narberth Timeseries Graph |
52 (2 Low) | 5 (1 Low) | 1 (1 Low) | 2 (1 Low) | 4 (1 Low) *2 | 18/09/2025 10:30:00 |
| Newport Timeseries Graph |
n/m | 15 (1 Low) | n/m | 2 (1 Low) | 5 (1 Low) *2 | 18/09/2025 22:00:00 |
| Port Talbot Margam Timeseries Graph |
52 (2 Low) | 19 (1 Low) | 1 (1 Low) | 3 (1 Low) | 12 (1 Low) *3 | 18/09/2025 22:00:00 |
| Swansea Roadside Timeseries Graph |
n/m | 7 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *1 | 18/09/2025 22:00:00 |
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) | 6 (1 Low) *2 | 18/09/2025 22:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 23 (1 Low) | n/m | n/m | n/m | 18/09/2025 18:00:00 |
| Bournemouth Timeseries Graph |
65 (2 Low) | 9 (1 Low) | n/m | 7 (1 Low) | n/m | 18/09/2025 06:00:00 |
| Bristol St Paul's Timeseries Graph |
n/a | 12 (1 Low) | n/m | 2 (1 Low) | 7 (1 Low) *1 | 18/09/2025 01:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 39 (1 Low) | n/m | 2 (1 Low) | 5 (1 Low) *2 | 18/09/2025 22:00:00 |
| Charlton Mackrell Timeseries Graph |
52 (2 Low) | 5 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 18/09/2025 22:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 1 (1 Low) | n/m | 18/09/2025 22:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 4 (1 Low) | n/m | 7 (1 Low) | n/m | 18/09/2025 09:00:00 |
| Exeter Roadside Timeseries Graph |
52 (2 Low) | 13 (1 Low) | n/m | n/m | n/m | 17/09/2025 23:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 2 (1 Low) | 3 (1 Low) *2 | 18/09/2025 22:00:00 |
| Honiton Timeseries Graph |
51 (2 Low) | 4 (1 Low) | n/m | 2 (1 Low) | 4 (1 Low) *2 | 18/09/2025 22:00:00 |
| London Farringdon Street Timeseries Graph |
n/m | 32 (1 Low) | n/m | 5 (1 Low) | n/m | 18/09/2025 22:00:00 |
| Plymouth Centre Timeseries Graph |
52 (2 Low) | 18 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 18/09/2025 22:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/m | n/m | 18/09/2025 14:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 2 (1 Low) | 12 (1 Low) *1 | 18/09/2025 17:00:00 |
| Swindon Walcot Timeseries Graph |
47 (2 Low) | n/a | n/m | 3 (1 Low) | 5 (1 Low) *2 | 18/09/2025 01:00:00 |
| Yarner Wood Timeseries Graph |
50 (2 Low) | 3 (1 Low) | n/m | 2 (1 Low) | 3 (1 Low) *2 | 18/09/2025 22:00:00 |
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 |
84 (3 Low) | n/m | n/m | n/m | n/m | 17/09/2025 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 |
36 (2 Low) | 31 (1 Low) | n/m | 2 (1 Low) | 6 (1 Low) *2 | 18/09/2025 01:00:00 |
| Birmingham Hall Green Timeseries Graph |
55 (2 Low) | 7 (1 Low) | n/m | 1 (1 Low) | 4 (1 Low) *2 | 18/09/2025 01:00:00 |
| Birmingham Ladywood Timeseries Graph |
45 (2 Low) | 10 (1 Low) | 1 (1 Low) | n/a | n/a | 18/09/2025 16:45:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 1 (1 Low) | 3 (1 Low) *2 | 18/09/2025 01:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
50 (2 Low) | 44 (1 Low) | n/m | 2 (1 Low) | 4 (1 Low) *2 | 18/09/2025 22:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 16 (1 Low) | n/m | 1 (1 Low) | n/m | 18/09/2025 01:00:00 |
| Coventry Allesley Timeseries Graph |
41 (2 Low) | 10 (1 Low) | n/m | 1 (1 Low) | 3 (1 Low) *2 | 18/09/2025 01:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 16 (1 Low) | n/m | 1 (1 Low) | 3 (1 Low) *2 | 18/09/2025 01:00:00 |
| Leamington Spa Timeseries Graph |
50 (2 Low) | 11 (1 Low) | n/m | 1 (1 Low) | 3 (1 Low) *2 | 18/09/2025 01:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 11 (1 Low) | n/m | 1 (1 Low) | 3 (1 Low) *2 | 18/09/2025 01:00:00 |
| Leominster Timeseries Graph |
47 (2 Low) | 4 (1 Low) | n/m | n/m | n/m | 17/09/2025 23:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 23 (1 Low) | n/m | 2 (1 Low) | 4 (1 Low) *2 | 18/09/2025 01:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 18/09/2025 20:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 70 (2 Low) | n/m | 2 (1 Low) | 5 (1 Low) *2 | 18/09/2025 01:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
38 (2 Low) | 6 (1 Low) | n/m | n/a | n/a | 18/09/2025 01:00:00 |
| Telford Hollinswood Timeseries Graph |
57 (2 Low) | 12 (1 Low) | n/m | 1 (1 Low) | 3 (1 Low) *2 | 18/09/2025 01:00:00 |
| Walsall Woodlands Timeseries Graph |
53 (2 Low) | 12 (1 Low) | n/m | n/m | n/m | 18/09/2025 07:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
42 (2 Low) | 15 (1 Low) | n/m | n/m | n/m | 18/09/2025 06:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 1 (1 Low) | 3 (1 Low) *2 | 18/09/2025 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 |
59 (2 Low) | 16 (1 Low) | 2 (1 Low) | 2 (1 Low) | 5 (1 Low) *2 | 18/09/2025 11:15:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | n/m | 18/09/2025 15:00:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 18/09/2025 21:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
59 (2 Low) | 12 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 18/09/2025 22:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 31 (1 Low) | n/m | 16 (2 Low) | n/m | 18/09/2025 01:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 18/09/2025 22:00:00 |
| High Muffles Timeseries Graph |
51 (2 Low) | 6 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 18/09/2025 10:00:00 |
| Hull Freetown Timeseries Graph |
40 (2 Low) | 37 (1 Low) | 3 (1 Low) | 3 (1 Low) | 7 (1 Low) *2 | 18/09/2025 08:30:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 54 (1 Low) | n/m | 3 (1 Low) | 9 (1 Low) *2 | 18/09/2025 01:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
47 (2 Low) | 5 (1 Low) | n/m | 2 (1 Low) | 3 (1 Low) *2 | 18/09/2025 01:00:00 |
| Leeds Centre Timeseries Graph |
54 (2 Low) | 28 (1 Low) | 2 (1 Low) | 4 (1 Low) | 9 (1 Low) *2 | 18/09/2025 01:45:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 24 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *1 | 18/09/2025 22:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 2 (1 Low) | 5 (1 Low) *2 | 18/09/2025 22:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 12 (1 Low) | 2 (1 Low) | n/a | n/a | 17/09/2025 24:15: |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 42 (1 Low) | n/m | 5 (1 Low) | n/m | 18/09/2025 22:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
54 (2 Low) | 16 (1 Low) | n/m | 2 (1 Low) | 5 (1 Low) *2 | 18/09/2025 22:00:00 |
| Sheffield Tinsley Timeseries Graph |
45 (2 Low) | 26 (1 Low) | n/m | 2 (1 Low) | 6 (1 Low) *2 | 18/09/2025 22:00:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 7 (1 Low) *2 | 18/09/2025 22:00:00 |
| York Bootham Timeseries Graph |
43 (2 Low) | 29 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *1 | 18/09/2025 21:00:00 |
| York Fishergate Timeseries Graph |
n/m | 48 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *1 | 18/09/2025 16:00:00 |
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