24 Hour Summary, based on data provided by Environment Agency
Here you can view the detailed data behind the latest measurement summary displayed on UK-AIR, and also a summary of information that has been displayed over the previous 24 hours. The detailed data tabulated below are from monitoring sites within the AURN. Graphs of hourly monitoring data are also available to view as weekly time series. You can also subscribe to this information as an email alert.
- View the legend
- Maximum pollutant levels displayed on UK-AIR for the 24 hour period up to 7pm Sat 31st Oct 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 |
57 (2 Low) | n/m | n/m | 10 (1 Low) | 13 (1 Low) *2 | 31/10/2026 19:00 |
| Bush Estate Timeseries Graph |
65 (2 Low) | 7 (1 Low) | n/m | n/m | n/m | 30/10/2026 20:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 27 (1 Low) | n/m | n/m | n/m | 30/10/2026 20:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 50 (1 Low) | n/m | n/m | n/m | 30/10/2026 20:00 |
| Edinburgh St Leonards Timeseries Graph |
52 (2 Low) | 42 (1 Low) | 2 (1 Low) | 12 (2 Low) | 16 (1 Low) *2 | 31/10/2026 01:30 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 64 (1 Low) | n/m | n/m | n/m | 30/10/2026 20:00 |
| Glasgow High Street Timeseries Graph |
n/m | 46 (1 Low) | n/m | 17 (2 Low) | 23 (2 Low) *2 | 31/10/2026 19:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 70 (2 Low) | n/m | n/m | n/m | 30/10/2026 20:00 |
| Glasgow Townhead Timeseries Graph |
41 (2 Low) | 44 (1 Low) | n/m | 14 (2 Low) | 19 (2 Low) *2 | 31/10/2026 19:00 |
| Grangemouth Timeseries Graph |
n/m | 29 (1 Low) | 2 (1 Low) | 14 (2 Low) | 20 (2 Low) *1 | 31/10/2026 09:30 |
| Grangemouth Moray Timeseries Graph |
n/m | 35 (1 Low) | n/m | n/m | n/m | 30/10/2026 24:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 11 (1 Low) | n/m | 12 (2 Low) | 17 (2 Low) *2 | 31/10/2026 18:00 |
East Midlands
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Chesterfield Loundsley Green Timeseries Graph |
40 (2 Low) | 24 (1 Low) | n/m | 17 (2 Low) | 20 (2 Low) *2 | 31/10/2026 19:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 32 (1 Low) | n/m | 20 (2 Low) | 24 (2 Low) *2 | 31/10/2026 19:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 51 (1 Low) | n/m | 20 (2 Low) | n/m | 31/10/2026 19:00 |
| Derby Stockbrook Park Timeseries Graph |
32 (1 Low) | n/m | n/m | 20 (2 Low) | 25 (2 Low) *2 | 31/10/2026 19:00 |
| Ladybower Timeseries Graph |
36 (2 Low) | 37 (1 Low) | 11 (1 Low) | 14 (2 Low) | 17 (2 Low) *2 | 31/10/2026 15:30 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 44 (1 Low) | n/m | 19 (2 Low) | 24 (2 Low) *2 | 31/10/2026 19:00 |
| Leicester University Timeseries Graph |
44 (2 Low) | 46 (1 Low) | n/m | 16 (2 Low) | 19 (2 Low) *2 | 31/10/2026 19:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 65 (1 Low) | n/m | n/m | n/m | 31/10/2026 19:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | 23 (2 Low) *2 | 31/10/2026 19:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 23 (2 Low) *2 | 31/10/2026 19:00 |
| Northampton Spring Park Timeseries Graph |
36 (2 Low) | 27 (1 Low) | n/m | 21 (2 Low) | n/m | 31/10/2026 19:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 23 (2 Low) *2 | 31/10/2026 18:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
35 (2 Low) | 30 (1 Low) | 2 (1 Low) | 24 (3 Low) | 28 (2 Low) *2 | 31/10/2026 18:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 54 (1 Low) | n/m | 21 (2 Low) | 26 (2 Low) *2 | 31/10/2026 19:00 |
| Tallington Timeseries Graph |
34 (2 Low) | n/m | n/m | 16 (2 Low) | 18 (2 Low) *2 | 31/10/2026 17:00 |
| Toft Newton Timeseries Graph |
48 (2 Low) | 14 (1 Low) | n/m | 13 (2 Low) | 16 (1 Low) *2 | 31/10/2026 17:00 |
| Wigston Centre Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 19:00 |
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 | 31 (1 Low) | n/m | 18 (2 Low) | 23 (2 Low) *2 | 31/10/2026 19:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 17 (2 Low) *2 | 31/10/2026 19:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 47 (1 Low) | n/m | n/m | n/m | 30/10/2026 20:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 48 (1 Low) | n/m | 18 (2 Low) | n/m | 31/10/2026 19:00 |
| Norwich Lakenfields Timeseries Graph |
38 (2 Low) | 34 (1 Low) | n/m | 15 (2 Low) | 18 (2 Low) *2 | 31/10/2026 19:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 23 (2 Low) | 28 (2 Low) *2 | 31/10/2026 19:00 |
| Sibton Timeseries Graph |
52 (2 Low) | n/m | n/m | n/a | n/a | 20/10/2026 24:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | n/a | n/a | 08/09/2026 24:00 |
| Southend-on-Sea Timeseries Graph |
54 (2 Low) | 37 (1 Low) | n/m | 19 (2 Low) | 24 (2 Low) *2 | 31/10/2026 19:00 |
| St Osyth Timeseries Graph |
61 (2 Low) | 23 (1 Low) | n/m | 16 (2 Low) | 21 (2 Low) *2 | 31/10/2026 19:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 41 (1 Low) | n/m | 26 (3 Low) | 22 (2 Low) *1 | 31/10/2026 19:00 |
| Stevenage St Georges Way South Timeseries Graph |
n/m | n/m | n/m | n/a | n/m | 03/09/2026 24:00 |
| Thurrock Timeseries Graph |
45 (2 Low) | 41 (1 Low) | 3 (1 Low) | 20 (2 Low) | 25 (2 Low) *2 | 31/10/2026 07:45 |
| Weybourne Timeseries Graph |
45 (2 Low) | n/m | n/m | 15 (2 Low) | 18 (2 Low) *2 | 31/10/2026 19:00 |
| Wicken Fen Timeseries Graph |
38 (2 Low) | 20 (1 Low) | 2 (1 Low) | 11 (1 Low) | 14 (1 Low) *2 | 31/10/2026 16:00 |
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 | 43 (1 Low) | n/m | 23 (2 Low) | 32 (2 Low) *1 | 31/10/2026 19:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 36 (3 Low) *1 | 31/10/2026 11:00 |
| Haringey Roadside Timeseries Graph |
n/m | 39 (1 Low) | n/m | n/m | n/m | 31/10/2026 19:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | n/m | 31/10/2026 19:00 |
| London Bexley Timeseries Graph |
n/m | 42 (1 Low) | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 17:00 |
| London Bloomsbury Timeseries Graph |
28 (1 Low) | 49 (1 Low) | 3 (1 Low) | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 12:00 |
| London Farringdon Street Timeseries Graph |
n/m | 45 (1 Low) | n/m | 24 (3 Low) | n/m | 31/10/2026 19:00 |
| London Haringey Priory Park South Timeseries Graph |
40 (2 Low) | 38 (1 Low) | n/m | 18 (2 Low) | 23 (2 Low) *2 | 31/10/2026 19:00 |
| London Harlington Timeseries Graph |
33 (1 Low) | 46 (1 Low) | n/m | 17 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| London Hillingdon Timeseries Graph |
31 (1 Low) | 55 (1 Low) | n/m | 21 (2 Low) | 27 (2 Low) *2 | 31/10/2026 19:00 |
| London Honor Oak Park Timeseries Graph |
46 (2 Low) | n/m | n/m | 17 (2 Low) | 21 (2 Low) *2 | 31/10/2026 19:00 |
| London Marylebone Road Timeseries Graph |
33 (1 Low) | 49 (1 Low) | 3 (1 Low) | 23 (2 Low) | 29 (2 Low) *1 | 30/10/2026 19:30 |
| London N. Kensington Timeseries Graph |
43 (2 Low) | 46 (1 Low) | 2 (1 Low) | 19 (2 Low) | 24 (2 Low) *2 | 31/10/2026 12:45 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | 23 (2 Low) *2 | 31/10/2026 19:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 23 (2 Low) *2 | 31/10/2026 19:00 |
| London Westminster Timeseries Graph |
37 (2 Low) | 48 (1 Low) | n/m | n/m | n/m | 30/10/2026 20:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 59 (1 Low) | n/m | n/m | 36 (3 Low) *1 | 31/10/2026 19:00 |
Highland
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Fort William Timeseries Graph |
61 (2 Low) | 17 (1 Low) | n/m | n/m | n/m | 30/10/2026 20:00 |
| Inverness Timeseries Graph |
n/m | 25 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 30/10/2026 24:00 |
| Lerwick Timeseries Graph |
70 (3 Low) | n/m | n/m | n/m | n/m | 31/10/2026 09:00 |
| Strathvaich Timeseries Graph |
65 (2 Low) | n/m | n/m | n/m | n/m | 30/10/2026 20:00 |
North East
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Ashington Centre Timeseries Graph |
n/m | n/m | n/m | 23 (2 Low) | 27 (2 Low) *2 | 31/10/2026 13:00 |
| Darlington Firthmoor Timeseries Graph |
n/m | n/m | n/m | 22 (2 Low) | 26 (2 Low) *2 | 31/10/2026 19:00 |
| Hartlepool St Abbs Walk Timeseries Graph |
39 (2 Low) | 41 (1 Low) | n/m | 21 (2 Low) | 25 (2 Low) *2 | 31/10/2026 19:00 |
| Kielder Water Timeseries Graph |
38 (2 Low) | n/m | n/m | 7 (1 Low) | 9 (1 Low) *2 | 31/10/2026 19:00 |
| Middlesbrough Timeseries Graph |
39 (2 Low) | 44 (1 Low) | 1 (1 Low) | 15 (2 Low) | 19 (2 Low) *1 | 30/10/2026 20:30 |
| Newcastle Centre Timeseries Graph |
28 (1 Low) | 31 (1 Low) | n/m | 17 (2 Low) | 24 (2 Low) *1 | 31/10/2026 11:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 57 (1 Low) | n/m | 19 (2 Low) | 24 (2 Low) *2 | 31/10/2026 13:00 |
| North Shields Chirton Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 23 (2 Low) *2 | 31/10/2026 13:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 21 (2 Low) *2 | 31/10/2026 19:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 36 (1 Low) | n/m | 20 (2 Low) | n/m | 31/10/2026 19:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 14 (1 Low) | n/m | 23 (2 Low) | 25 (2 Low) *1 | 31/10/2026 19:00 |
| Sunderland Silksworth Timeseries Graph |
42 (2 Low) | 20 (1 Low) | n/m | 21 (2 Low) | 25 (2 Low) *2 | 31/10/2026 19:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 28 (1 Low) | n/m | 20 (2 Low) | n/m | 31/10/2026 17:00 |
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 |
44 (2 Low) | 39 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *2 | 31/10/2026 19:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 30 (1 Low) | n/m | n/m | n/m | 31/10/2026 08:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | n/m | 30/10/2026 21:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 30/10/2026 22:00 |
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 |
51 (2 Low) | 9 (1 Low) | n/m | n/m | n/m | 30/10/2026 20:00 |
| Wrexham Timeseries Graph |
n/m | 39 (1 Low) | 2 (1 Low) | 16 (2 Low) | 19 (2 Low) *2 | 31/10/2026 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 | 43 (1 Low) | n/m | 21 (2 Low) | n/m | 31/10/2026 19:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 62 (1 Low) | n/m | n/m | n/m | 31/10/2026 19:00 |
| Blackburn Audley Park Timeseries Graph |
34 (2 Low) | n/m | n/m | 16 (2 Low) | 19 (2 Low) *2 | 31/10/2026 19:00 |
| Blackpool Marton Timeseries Graph |
37 (2 Low) | 40 (1 Low) | n/m | 20 (2 Low) | 24 (2 Low) *2 | 31/10/2026 19:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 21 (2 Low) | n/m | 31/10/2026 17:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 45 (1 Low) | n/m | n/m | 24 (2 Low) *1 | 30/10/2026 20:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 35 (1 Low) | n/m | 18 (2 Low) | 22 (2 Low) *1 | 31/10/2026 19:00 |
| Crewe Coppenhall Timeseries Graph |
40 (2 Low) | 46 (1 Low) | n/m | 20 (2 Low) | 24 (2 Low) *2 | 31/10/2026 19:00 |
| Glazebury Timeseries Graph |
42 (2 Low) | 38 (1 Low) | n/m | 16 (2 Low) | 19 (2 Low) *2 | 31/10/2026 19:00 |
| Liverpool Speke Timeseries Graph |
38 (2 Low) | 43 (1 Low) | 4 (1 Low) | 18 (2 Low) | 26 (2 Low) *1 | 31/10/2026 16:45 |
| Liverpool Thirlmere Park Timeseries Graph |
35 (2 Low) | n/m | n/m | 21 (2 Low) | 25 (2 Low) *2 | 31/10/2026 19:00 |
| Manchester Piccadilly Timeseries Graph |
23 (1 Low) | 53 (1 Low) | 5 (1 Low) | 21 (2 Low) | 28 (2 Low) *2 | 31/10/2026 06:30 |
| Manchester Sharston Timeseries Graph |
32 (1 Low) | 38 (1 Low) | n/m | 16 (2 Low) | 24 (2 Low) *2 | 31/10/2026 16:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 21 (2 Low) | n/m | 31/10/2026 19:00 |
| Preston Timeseries Graph |
32 (1 Low) | 57 (1 Low) | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 19:00 |
| Rochdale Belfield Timeseries Graph |
n/m | n/m | n/m | 16 (2 Low) | 20 (2 Low) *2 | 31/10/2026 19:00 |
| Salford Eccles Timeseries Graph |
31 (1 Low) | 57 (1 Low) | n/m | 19 (2 Low) | 24 (2 Low) *2 | 31/10/2026 19:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 46 (1 Low) | n/m | n/m | n/m | 30/10/2026 20:00 |
| St Helens Linkway Timeseries Graph |
n/m | 60 (1 Low) | n/m | n/m | 33 (2 Low) *1 | 30/10/2026 19:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 16 (2 Low) | n/m | 31/10/2026 19:00 |
| Warrington St. Peter's Park Timeseries Graph |
n/m | 55 (1 Low) | n/m | 21 (2 Low) | 25 (2 Low) *2 | 31/10/2026 18:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 56 (1 Low) | n/m | n/m | n/m | 30/10/2026 20:00 |
| Wigan Centre Timeseries Graph |
35 (2 Low) | 52 (1 Low) | n/m | 23 (2 Low) | 30 (2 Low) *2 | 31/10/2026 19:00 |
| Wirral Tranmere Timeseries Graph |
41 (2 Low) | 36 (1 Low) | n/m | 21 (2 Low) | 25 (2 Low) *2 | 31/10/2026 19:00 |
Northern Ireland
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Armagh Roadside Timeseries Graph |
n/m | 53 (1 Low) | n/m | n/m | 22 (2 Low) *1 | 31/10/2026 09:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | n/m | 30/10/2026 20:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 23 (1 Low) | 20 (1 Low) | n/m | n/m | 31/10/2026 18:45 |
| Belfast Centre Timeseries Graph |
64 (2 Low) | 37 (1 Low) | 2 (1 Low) | 11 (1 Low) | 20 (2 Low) *2 | 31/10/2026 13:15 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 61 (1 Low) | n/m | n/m | 28 (2 Low) *1 | 31/10/2026 18:00 |
| Derry Rosemount Timeseries Graph |
57 (2 Low) | 13 (1 Low) | 3 (1 Low) | 7 (1 Low) | 16 (1 Low) *1 | 30/10/2026 23:00 |
| Lough Navar Timeseries Graph |
50 (2 Low) | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 31/10/2026 07:00 |
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 | 41 (1 Low) | n/m | n/m | n/m | 30/10/2026 20:00 |
| Eskdalemuir Timeseries Graph |
45 (2 Low) | 6 (1 Low) | n/m | n/m | n/m | 31/10/2026 19:00 |
| Peebles Timeseries Graph |
55 (2 Low) | 23 (1 Low) | n/m | n/m | n/m | 30/10/2026 20:00 |
South East
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Aylesbury A4157 Timeseries Graph |
n/m | n/m | n/m | 17 (2 Low) | n/m | 31/10/2026 19:00 |
| Brighton Preston Park Timeseries Graph |
44 (2 Low) | 40 (1 Low) | n/m | 17 (2 Low) | 21 (2 Low) *2 | 31/10/2026 19:00 |
| Chatham Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | 16 (2 Low) | 32 (2 Low) *1 | 31/10/2026 18:00 |
| Chilbolton Observatory Timeseries Graph |
54 (2 Low) | 21 (1 Low) | 1 (1 Low) | 16 (2 Low) | 19 (2 Low) *2 | 31/10/2026 19:00 |
| Eastbourne Timeseries Graph |
52 (2 Low) | 26 (1 Low) | n/m | 16 (2 Low) | 20 (2 Low) *2 | 31/10/2026 19:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | 24 (2 Low) *2 | 31/10/2026 15:00 |
| Horley Timeseries Graph |
n/m | 32 (1 Low) | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 19:00 |
| Lullington Heath Timeseries Graph |
56 (2 Low) | 18 (1 Low) | 1 (1 Low) | 14 (2 Low) | 17 (2 Low) *2 | 31/10/2026 12:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 29 (2 Low) *2 | 31/10/2026 19:00 |
| Milton Keynes Civic Centre Timeseries Graph |
n/a | n/m | n/m | 20 (2 Low) | 23 (2 Low) *2 | 31/10/2026 19:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 45 (1 Low) | n/m | n/m | n/m | 30/10/2026 22:00 |
| Oxford St Ebbes Timeseries Graph |
40 (2 Low) | 35 (1 Low) | n/m | 12 (2 Low) | 16 (1 Low) *2 | 31/10/2026 19:00 |
| Portsmouth Timeseries Graph |
39 (2 Low) | 58 (1 Low) | n/m | 14 (2 Low) | 18 (2 Low) *2 | 31/10/2026 19:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 55 (1 Low) | n/m | 17 (2 Low) | 21 (2 Low) *2 | 31/10/2026 19:00 |
| Reading London Road Timeseries Graph |
n/m | 57 (1 Low) | n/m | n/m | 23 (2 Low) *1 | 30/10/2026 20:00 |
| Reading New Town Timeseries Graph |
33 (1 Low) | 47 (1 Low) | n/m | 17 (2 Low) | 21 (2 Low) *2 | 31/10/2026 19:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | n/m | 31/10/2026 19:00 |
| Rochester Stoke Timeseries Graph |
56 (2 Low) | 35 (1 Low) | 3 (1 Low) | 19 (2 Low) | 23 (2 Low) *2 | 31/10/2026 10:45 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 22 (2 Low) | 30 (2 Low) *2 | 31/10/2026 19:00 |
| Southampton A33 Timeseries Graph |
n/m | 58 (1 Low) | n/m | 15 (2 Low) | 19 (2 Low) *2 | 31/10/2026 18:00 |
| Southampton Centre Timeseries Graph |
39 (2 Low) | 61 (1 Low) | 3 (1 Low) | 18 (2 Low) | 23 (2 Low) *2 | 31/10/2026 18:15 |
| Storrington Roadside Timeseries Graph |
n/m | 50 (1 Low) | n/m | 19 (2 Low) | 24 (2 Low) *2 | 31/10/2026 16:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | 19 (2 Low) | n/m | 31/10/2026 19:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 17 (2 Low) | 21 (2 Low) *2 | 31/10/2026 19:00 |
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 |
n/a | 41 (1 Low) | 1 (1 Low) | n/a | 23 (2 Low) *1 | 31/10/2026 18:45 |
| Cardiff Newport Road Timeseries Graph |
n/m | 58 (1 Low) | n/m | n/m | 25 (2 Low) *1 | 31/10/2026 19:00 |
| Chepstow A48 Timeseries Graph |
n/m | 35 (1 Low) | n/m | 16 (2 Low) | 19 (2 Low) *1 | 31/10/2026 19:00 |
| Cwmbran Crownbridge Timeseries Graph |
46 (2 Low) | 33 (1 Low) | n/m | n/m | n/m | 31/10/2026 17:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 33 (1 Low) | n/m | n/m | n/m | 30/10/2026 19:00 |
| Narberth Timeseries Graph |
54 (2 Low) | 11 (1 Low) | 1 (1 Low) | 16 (2 Low) | 21 (2 Low) *2 | 31/10/2026 06:15 |
| Newport Timeseries Graph |
n/m | 42 (1 Low) | n/m | 16 (2 Low) | 21 (2 Low) *2 | 31/10/2026 19:00 |
| Port Talbot Margam Timeseries Graph |
47 (2 Low) | 31 (1 Low) | 2 (1 Low) | 15 (2 Low) | 22 (2 Low) *3 | 31/10/2026 15:00 |
| Swansea Roadside Timeseries Graph |
n/m | n/a | n/m | n/a | n/a | 22/10/2026 24:00 |
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 | 12 (2 Low) | 16 (1 Low) *2 | 31/10/2026 19:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | n/m | 31/10/2026 18:00 |
| Bournemouth Timeseries Graph |
57 (2 Low) | 37 (1 Low) | n/m | 16 (2 Low) | n/m | 31/10/2026 19:00 |
| Bournemouth Bourne Valley Timeseries Graph |
n/m | n/m | n/m | 17 (2 Low) | 21 (2 Low) *2 | 31/10/2026 19:00 |
| Bridgwater A372 Westonzoyland Timeseries Graph |
n/m | n/m | n/m | 21 (2 Low) | n/m | 31/10/2026 19:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 25 (2 Low) *2 | 31/10/2026 19:00 |
| Bristol St Paul's Timeseries Graph |
n/a | 52 (1 Low) | n/m | 21 (2 Low) | 30 (2 Low) *1 | 31/10/2026 19:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 51 (1 Low) | n/m | 23 (2 Low) | 30 (2 Low) *2 | 31/10/2026 19:00 |
| Charlton Mackrell Timeseries Graph |
55 (2 Low) | 14 (1 Low) | n/m | 19 (2 Low) | 23 (2 Low) *2 | 31/10/2026 19:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 27 (3 Low) | n/m | 31/10/2026 18:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 59 (1 Low) | n/m | 16 (2 Low) | n/m | 31/10/2026 19:00 |
| Exeter Roadside Timeseries Graph |
46 (2 Low) | 65 (1 Low) | n/m | n/m | n/m | 30/10/2026 20:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 24 (3 Low) | 30 (2 Low) *2 | 31/10/2026 19:00 |
| Honiton Timeseries Graph |
55 (2 Low) | 29 (1 Low) | n/m | 17 (2 Low) | 20 (2 Low) *2 | 31/10/2026 19:00 |
| Plymouth Centre Timeseries Graph |
46 (2 Low) | 45 (1 Low) | n/m | 12 (2 Low) | 17 (2 Low) *2 | 31/10/2026 19:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 19 (1 Low) | n/m | n/m | n/m | 31/10/2026 18:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 20 (2 Low) *1 | 31/10/2026 19:00 |
| Swindon Walcot Timeseries Graph |
42 (2 Low) | 42 (1 Low) | n/m | 17 (2 Low) | 21 (2 Low) *2 | 31/10/2026 19:00 |
| Yarner Wood Timeseries Graph |
69 (3 Low) | 8 (1 Low) | n/m | 11 (1 Low) | 16 (1 Low) *2 | 31/10/2026 19:00 |
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 |
69 (3 Low) | n/m | n/m | n/m | n/m | 30/10/2026 20:00 |
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 | n/a | n/a | 07/10/2026 24:00 |
| Birmingham A4540 Roadside Timeseries Graph |
33 (1 Low) | 67 (1 Low) | n/m | 22 (2 Low) | 27 (2 Low) *2 | 31/10/2026 19:00 |
| Birmingham Hall Green Timeseries Graph |
42 (2 Low) | 50 (1 Low) | n/m | 20 (2 Low) | 29 (2 Low) *2 | 31/10/2026 19:00 |
| Birmingham Ladywood Timeseries Graph |
38 (2 Low) | 54 (1 Low) | 4 (1 Low) | 21 (2 Low) | 26 (2 Low) *2 | 31/10/2026 18:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 19:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
38 (2 Low) | 44 (1 Low) | n/m | 19 (2 Low) | 23 (2 Low) *2 | 31/10/2026 18:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 48 (1 Low) | n/m | 18 (2 Low) | n/m | 31/10/2026 19:00 |
| Coventry Allesley Timeseries Graph |
37 (2 Low) | 45 (1 Low) | n/m | 17 (2 Low) | 21 (2 Low) *2 | 31/10/2026 19:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 46 (1 Low) | n/m | 20 (2 Low) | 25 (2 Low) *2 | 31/10/2026 19:00 |
| Leamington Spa Timeseries Graph |
46 (2 Low) | 34 (1 Low) | n/m | 19 (2 Low) | 22 (2 Low) *2 | 31/10/2026 19:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 30 (1 Low) | n/m | 17 (2 Low) | 21 (2 Low) *2 | 31/10/2026 19:00 |
| Leominster Timeseries Graph |
41 (2 Low) | 29 (1 Low) | n/m | n/m | n/m | 31/10/2026 18:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 65 (1 Low) | n/m | 29 (3 Low) | 37 (3 Low) *2 | 31/10/2026 17:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 17 (2 Low) | 20 (2 Low) *2 | 31/10/2026 19:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 75 (2 Low) | n/m | 21 (2 Low) | 26 (2 Low) *2 | 31/10/2026 19:00 |
| Stoke-on-Trent Centre Timeseries Graph |
32 (1 Low) | 48 (1 Low) | n/m | 18 (2 Low) | 21 (2 Low) *2 | 31/10/2026 19:00 |
| Telford Hollinswood Timeseries Graph |
39 (2 Low) | 37 (1 Low) | n/m | 17 (2 Low) | 22 (2 Low) *2 | 31/10/2026 19:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | 23 (2 Low) *2 | 31/10/2026 19:00 |
| Walsall Woodlands Timeseries Graph |
36 (2 Low) | 33 (1 Low) | n/m | n/m | n/m | 31/10/2026 16:00 |
| West Bromwich Kenrick Park Timeseries Graph |
30 (1 Low) | 56 (1 Low) | n/m | n/m | n/m | 31/10/2026 16:00 |
| Wolverhampton East Park Timeseries Graph |
n/m | n/m | n/m | 25 (3 Low) | 31 (2 Low) *2 | 31/10/2026 19:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | 23 (2 Low) *2 | 31/10/2026 19:00 |
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 |
36 (2 Low) | 35 (1 Low) | 2 (1 Low) | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 18:45 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 61 (1 Low) | n/m | n/m | n/m | 31/10/2026 17:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 21 (2 Low) | 27 (2 Low) *2 | 31/10/2026 19:00 |
| Bradford West Park Timeseries Graph |
n/m | n/m | n/m | 21 (2 Low) | 25 (2 Low) *2 | 31/10/2026 19:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
34 (2 Low) | 47 (1 Low) | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 19:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 53 (1 Low) | n/m | 19 (2 Low) | n/m | 31/10/2026 13:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 23 (2 Low) *2 | 31/10/2026 19:00 |
| High Muffles Timeseries Graph |
43 (2 Low) | 10 (1 Low) | n/m | 10 (1 Low) | 12 (1 Low) *2 | 31/10/2026 12:00 |
| Hull Freetown Timeseries Graph |
31 (1 Low) | 44 (1 Low) | 5 (1 Low) | 22 (2 Low) | 27 (2 Low) *2 | 30/10/2026 21:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 50 (1 Low) | n/m | 26 (3 Low) | 33 (2 Low) *2 | 31/10/2026 12:00 |
| Immingham Woodlands Avenue Timeseries Graph |
40 (2 Low) | 44 (1 Low) | n/m | 15 (2 Low) | 18 (2 Low) *2 | 31/10/2026 19:00 |
| Leeds Centre Timeseries Graph |
26 (1 Low) | 51 (1 Low) | 8 (1 Low) | 22 (2 Low) | 27 (2 Low) *2 | 31/10/2026 02:45 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 48 (1 Low) | n/m | 24 (3 Low) | 30 (2 Low) *1 | 31/10/2026 18:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | 22 (2 Low) *2 | 31/10/2026 19:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 42 (1 Low) | 5 (1 Low) | 17 (2 Low) | 23 (2 Low) *1 | 30/10/2026 21:15 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 59 (1 Low) | n/m | 20 (2 Low) | n/m | 31/10/2026 19:00 |
| Sheffield Devonshire Green Timeseries Graph |
36 (2 Low) | 43 (1 Low) | n/m | 17 (2 Low) | 21 (2 Low) *2 | 31/10/2026 19:00 |
| Sheffield Tinsley Timeseries Graph |
29 (1 Low) | 47 (1 Low) | n/m | 16 (2 Low) | 24 (2 Low) *2 | 31/10/2026 19:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 33 (3 Low) | 39 (3 Low) *2 | 31/10/2026 17:00 |
| York Bootham Timeseries Graph |
n/a | n/a | n/m | n/a | n/a | 25/10/2026 24:00 |
| York Fishergate Timeseries Graph |
n/m | 37 (1 Low) | n/m | 17 (2 Low) | 26 (2 Low) *1 | 31/10/2026 14:00 |
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