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 Sun 4th 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 |
56 (2 Low) | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 04/10/2026 06:00:00 |
| Bush Estate Timeseries Graph |
62 (2 Low) | 1 (1 Low) | n/m | n/m | n/m | 04/10/2026 11:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 4 (1 Low) | n/m | n/m | n/m | 03/10/2026 24:00: |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 43 (1 Low) | n/m | n/m | n/m | 03/10/2026 23:00:00 |
| Edinburgh St Leonards Timeseries Graph |
61 (2 Low) | 5 (1 Low) | 3 (1 Low) | 5 (1 Low) | 9 (1 Low) *2 | 04/10/2026 02:30:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 12 (1 Low) | n/m | n/m | n/m | 03/10/2026 23:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 17 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 04/10/2026 06:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | n/m | 04/10/2026 02:00:00 |
| Glasgow Townhead Timeseries Graph |
52 (2 Low) | 15 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 04/10/2026 06:00:00 |
| Grangemouth Timeseries Graph |
n/m | 3 (1 Low) | n/a | 8 (1 Low) | 13 (1 Low) *1 | 28/09/2026 19:45:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 6 (1 Low) | n/m | n/m | n/m | 03/10/2026 22:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 11 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 04/10/2026 06:00:00 |
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 |
61 (2 Low) | 13 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 04/10/2026 13:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 20 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 04/10/2026 14:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 40 (1 Low) | n/m | 6 (1 Low) | n/m | 04/10/2026 14:00:00 |
| Derby Stockbrook Park Timeseries Graph |
54 (2 Low) | n/m | n/m | 7 (1 Low) | 11 (1 Low) *2 | 04/10/2026 14:00:00 |
| Ladybower Timeseries Graph |
60 (2 Low) | 5 (1 Low) | 1 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 04/10/2026 10:00:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 65 (1 Low) | n/m | 10 (1 Low) | 17 (2 Low) *2 | 04/10/2026 17:00:00 |
| Leicester University Timeseries Graph |
49 (2 Low) | 60 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 04/10/2026 15:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 46 (1 Low) | n/m | n/m | n/m | 03/10/2026 23:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 13 (1 Low) *2 | 04/10/2026 12:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 11 (1 Low) *2 | 04/10/2026 11:00:00 |
| Northampton Spring Park Timeseries Graph |
67 (3 Low) | 20 (1 Low) | n/m | 7 (1 Low) | n/m | 04/10/2026 01:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 04/10/2026 16:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
46 (2 Low) | 35 (1 Low) | 2 (1 Low) | 10 (1 Low) | 15 (1 Low) *2 | 04/10/2026 11:00:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 38 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) *2 | 04/10/2026 17:00:00 |
| Tallington Timeseries Graph |
73 (3 Low) | n/m | n/m | 6 (1 Low) | 11 (1 Low) *2 | 04/10/2026 11:00:00 |
| Toft Newton Timeseries Graph |
67 (3 Low) | 8 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 04/10/2026 18:00:00 |
| Wigston Centre Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 11 (1 Low) *2 | 04/10/2026 17:00:00 |
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 | 32 (1 Low) | n/m | 6 (1 Low) | 9 (1 Low) *2 | 04/10/2026 13:00:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 9 (1 Low) *2 | 04/10/2026 19:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 47 (1 Low) | n/m | n/m | n/m | 04/10/2026 20:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 54 (1 Low) | n/m | 11 (1 Low) | n/m | 04/10/2026 21:00:00 |
| Norwich Lakenfields Timeseries Graph |
71 (3 Low) | 24 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 04/10/2026 15:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 17 (2 Low) *2 | 04/10/2026 15:00:00 |
| Sibton Timeseries Graph |
74 (3 Low) | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 04/10/2026 01:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | n/a | n/a | 09/09/2026 01:00:00 |
| Southend-on-Sea Timeseries Graph |
65 (2 Low) | 35 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 04/10/2026 13:00:00 |
| St Osyth Timeseries Graph |
79 (3 Low) | 14 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 04/10/2026 16:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 53 (1 Low) | n/m | 10 (1 Low) | n/a | 04/10/2026 12:00:00 |
| Stevenage St Georges Way South Timeseries Graph |
n/m | n/m | n/m | n/a | n/m | 04/09/2026 01:00:00 |
| Thurrock Timeseries Graph |
65 (2 Low) | 57 (1 Low) | 3 (1 Low) | 8 (1 Low) | 13 (1 Low) *2 | 04/10/2026 21:00:00 |
| Weybourne Timeseries Graph |
n/a | n/m | n/m | 3 (1 Low) | 6 (1 Low) *2 | 04/10/2026 01:00:00 |
| Wicken Fen Timeseries Graph |
73 (3 Low) | 9 (1 Low) | 2 (1 Low) | 3 (1 Low) | 8 (1 Low) *2 | 04/10/2026 09:15:00 |
Greater London
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Camden Kerbside Timeseries Graph |
n/m | 63 (1 Low) | n/m | 14 (2 Low) | 21 (2 Low) *1 | 04/10/2026 13:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 37 (3 Low) *1 | 04/10/2026 06:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 63 (1 Low) | n/m | n/m | n/m | 04/10/2026 21:00:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | n/m | 04/10/2026 21:00:00 |
| London Bexley Timeseries Graph |
n/m | 37 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 04/10/2026 12:00:00 |
| London Bloomsbury Timeseries Graph |
58 (2 Low) | 50 (1 Low) | 2 (1 Low) | 9 (1 Low) | 14 (1 Low) *2 | 04/10/2026 09:00:00 |
| London Farringdon Street Timeseries Graph |
n/m | 66 (1 Low) | n/m | 12 (2 Low) | n/m | 04/10/2026 13:00:00 |
| London Haringey Priory Park South Timeseries Graph |
56 (2 Low) | 47 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) *2 | 04/10/2026 17:00:00 |
| London Harlington Timeseries Graph |
58 (2 Low) | 59 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 04/10/2026 13:00:00 |
| London Hillingdon Timeseries Graph |
51 (2 Low) | 63 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 04/10/2026 13:00:00 |
| London Honor Oak Park Timeseries Graph |
77 (3 Low) | n/m | n/m | 8 (1 Low) | 12 (1 Low) *2 | 04/10/2026 12:00:00 |
| London Marylebone Road Timeseries Graph |
47 (2 Low) | 72 (2 Low) | 22 (1 Low) | 15 (2 Low) | 21 (2 Low) *1 | 04/10/2026 07:15:00 |
| London N. Kensington Timeseries Graph |
61 (2 Low) | 45 (1 Low) | 3 (1 Low) | 11 (1 Low) | 15 (1 Low) *2 | 04/10/2026 17:30:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 13 (1 Low) *2 | 04/10/2026 12:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 04/10/2026 22:00:00 |
| London Westminster Timeseries Graph |
63 (2 Low) | 43 (1 Low) | n/m | n/m | n/m | 04/10/2026 19:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 65 (1 Low) | n/m | n/m | 23 (2 Low) *1 | 04/10/2026 21:00:00 |
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 |
59 (2 Low) | 15 (1 Low) | n/m | n/m | n/m | 04/10/2026 05:00:00 |
| Inverness Timeseries Graph |
n/m | 7 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 04/10/2026 07:00:00 |
| Lerwick Timeseries Graph |
72 (3 Low) | n/m | n/m | n/m | n/m | 03/10/2026 23:00:00 |
| Strathvaich Timeseries Graph |
73 (3 Low) | n/m | n/m | n/m | n/m | 04/10/2026 18:00:00 |
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 | 6 (1 Low) | 10 (1 Low) *2 | 04/10/2026 12:00:00 |
| Hartlepool St Abbs Walk Timeseries Graph |
59 (2 Low) | 24 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 04/10/2026 13:00:00 |
| Kielder Water Timeseries Graph |
53 (2 Low) | n/m | n/m | 3 (1 Low) | 8 (1 Low) *2 | 04/10/2026 09:00:00 |
| Middlesbrough Timeseries Graph |
53 (2 Low) | 17 (1 Low) | 1 (1 Low) | 6 (1 Low) | 13 (1 Low) *1 | 04/10/2026 16:15:00 |
| Newcastle Centre Timeseries Graph |
51 (2 Low) | 33 (1 Low) | n/m | 6 (1 Low) | 15 (1 Low) *1 | 04/10/2026 18:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 57 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 04/10/2026 09:00:00 |
| North Shields Chirton Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 04/10/2026 07:00:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 04/10/2026 04:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 21 (1 Low) | n/m | 5 (1 Low) | n/m | 04/10/2026 12:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 8 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *1 | 04/10/2026 17:00:00 |
| Sunderland Silksworth Timeseries Graph |
63 (2 Low) | 8 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 04/10/2026 08:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 17 (1 Low) | n/m | 4 (1 Low) | n/m | 04/10/2026 08:00:00 |
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 |
48 (2 Low) | 23 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 04/10/2026 11:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 4 (1 Low) | n/m | n/m | n/m | 04/10/2026 17:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 6 (1 Low) | n/m | n/m | n/m | 03/10/2026 23:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 9 (1 Low) | n/m | n/m | n/m | 04/10/2026 13:00:00 |
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 |
70 (3 Low) | 4 (1 Low) | n/m | n/m | n/m | 03/10/2026 23:00:00 |
| Wrexham Timeseries Graph |
n/m | 17 (1 Low) | 1 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 04/10/2026 07:45:00 |
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 | 8 (1 Low) | n/m | 04/10/2026 13:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 42 (1 Low) | n/m | n/m | n/m | 03/10/2026 23:00:00 |
| Blackburn Audley Park Timeseries Graph |
48 (2 Low) | n/m | n/m | 7 (1 Low) | 12 (1 Low) *2 | 04/10/2026 10:00:00 |
| Blackpool Marton Timeseries Graph |
59 (2 Low) | 32 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 04/10/2026 12:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | n/m | 04/10/2026 12:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 31 (1 Low) | n/m | n/m | 15 (1 Low) *1 | 03/10/2026 23:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 8 (1 Low) | n/m | 10 (1 Low) | 13 (1 Low) *1 | 04/10/2026 10:00:00 |
| Crewe Coppenhall Timeseries Graph |
50 (2 Low) | 26 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 04/10/2026 13:00:00 |
| Glazebury Timeseries Graph |
45 (2 Low) | 24 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *2 | 04/10/2026 15:00:00 |
| Liverpool Speke Timeseries Graph |
48 (2 Low) | 44 (1 Low) | 17 (1 Low) | 7 (1 Low) | 16 (1 Low) *1 | 04/10/2026 13:30:00 |
| Liverpool Thirlmere Park Timeseries Graph |
54 (2 Low) | n/m | n/m | 7 (1 Low) | 12 (1 Low) *2 | 04/10/2026 12:00:00 |
| Manchester Piccadilly Timeseries Graph |
39 (2 Low) | 51 (1 Low) | 3 (1 Low) | 10 (1 Low) | 17 (2 Low) *2 | 04/10/2026 05:15:00 |
| Manchester Sharston Timeseries Graph |
50 (2 Low) | 30 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 04/10/2026 13:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | n/m | 04/10/2026 12:00:00 |
| Preston Timeseries Graph |
41 (2 Low) | 25 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 04/10/2026 16:00:00 |
| Rochdale Belfield Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 04/10/2026 16:00:00 |
| Salford Eccles Timeseries Graph |
46 (2 Low) | 48 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 04/10/2026 14:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 26 (1 Low) | n/m | n/m | n/m | 04/10/2026 15:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 46 (1 Low) | n/m | n/m | 19 (2 Low) *1 | 03/10/2026 20:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 04/10/2026 12:00:00 |
| Warrington St. Peter's Park Timeseries Graph |
n/m | 42 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 04/10/2026 13:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 47 (1 Low) | n/m | n/m | n/m | 03/10/2026 23:00:00 |
| Wigan Centre Timeseries Graph |
45 (2 Low) | 24 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 04/10/2026 15:00:00 |
| Wirral Tranmere Timeseries Graph |
51 (2 Low) | 31 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 04/10/2026 13:00:00 |
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 | 22 (1 Low) | n/m | n/m | 16 (1 Low) *1 | 04/10/2026 17:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 16 (1 Low) | n/m | n/m | n/m | 04/10/2026 03:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 8 (1 Low) | 6 (1 Low) | n/m | n/m | 04/10/2026 20:15:00 |
| Belfast Centre Timeseries Graph |
43 (2 Low) | 41 (1 Low) | 1 (1 Low) | 9 (1 Low) | 15 (1 Low) *2 | 04/10/2026 03:00:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 41 (1 Low) | n/m | n/m | 20 (2 Low) *1 | 03/10/2026 23:00:00 |
| Derry Rosemount Timeseries Graph |
54 (2 Low) | 5 (1 Low) | 3 (1 Low) | 4 (1 Low) | 12 (1 Low) *1 | 03/10/2026 22:45:00 |
| Lough Navar Timeseries Graph |
46 (2 Low) | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 04/10/2026 04:00:00 |
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 | 32 (1 Low) | n/m | n/m | n/m | 03/10/2026 23:00:00 |
| Eskdalemuir Timeseries Graph |
50 (2 Low) | 2 (1 Low) | n/m | n/m | n/m | 04/10/2026 17:00:00 |
| Peebles Timeseries Graph |
63 (2 Low) | 4 (1 Low) | n/m | n/m | n/m | 04/10/2026 10:00:00 |
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 | 5 (1 Low) | n/m | 04/10/2026 22:00:00 |
| Brighton Preston Park Timeseries Graph |
76 (3 Low) | 33 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 04/10/2026 16:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 27 (1 Low) | n/m | 7 (1 Low) | 20 (2 Low) *1 | 04/10/2026 10:00:00 |
| Chilbolton Observatory Timeseries Graph |
74 (3 Low) | 13 (1 Low) | 1 (1 Low) | 5 (1 Low) | 8 (1 Low) *2 | 04/10/2026 16:30:00 |
| Eastbourne Timeseries Graph |
65 (2 Low) | 18 (1 Low) | n/m | 6 (1 Low) | 9 (1 Low) *2 | 04/10/2026 20:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 11 (1 Low) *2 | 04/10/2026 13:00:00 |
| Horley Timeseries Graph |
n/m | 69 (2 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 04/10/2026 11:00:00 |
| Lullington Heath Timeseries Graph |
64 (2 Low) | 19 (1 Low) | 3 (1 Low) | 5 (1 Low) | 7 (1 Low) *2 | 04/10/2026 02:30:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 04/10/2026 21:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
64 (2 Low) | n/m | n/m | 6 (1 Low) | 9 (1 Low) *2 | 04/10/2026 19:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 50 (1 Low) | n/m | n/m | n/m | 03/10/2026 23:00:00 |
| Oxford St Ebbes Timeseries Graph |
61 (2 Low) | 41 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 04/10/2026 22:00:00 |
| Portsmouth Timeseries Graph |
n/a | 51 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 04/10/2026 11:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 39 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 04/10/2026 12:00:00 |
| Reading London Road Timeseries Graph |
n/m | 38 (1 Low) | n/m | n/m | 17 (2 Low) *1 | 04/10/2026 22:00:00 |
| Reading New Town Timeseries Graph |
62 (2 Low) | 48 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *2 | 04/10/2026 07:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 04/10/2026 06:00:00 |
| Rochester Stoke Timeseries Graph |
71 (3 Low) | 31 (1 Low) | 2 (1 Low) | 6 (1 Low) | 8 (1 Low) *2 | 04/10/2026 01:15:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 15 (1 Low) *2 | 04/10/2026 08:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 32 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 04/10/2026 08:00:00 |
| Southampton Centre Timeseries Graph |
54 (2 Low) | 47 (1 Low) | 3 (1 Low) | 9 (1 Low) | 14 (1 Low) *2 | 03/10/2026 22:15:00 |
| Storrington Roadside Timeseries Graph |
n/m | 33 (1 Low) | n/m | 6 (1 Low) | 9 (1 Low) *2 | 04/10/2026 11:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 37 (1 Low) | n/m | 8 (1 Low) | n/m | 04/10/2026 19:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 04/10/2026 19:00:00 |
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 |
62 (2 Low) | 24 (1 Low) | 1 (1 Low) | 8 (1 Low) | 11 (1 Low) *1 | 03/10/2026 24:45: |
| Cardiff Newport Road Timeseries Graph |
n/m | 26 (1 Low) | n/m | n/m | 12 (1 Low) *1 | 03/10/2026 24:00: |
| Chepstow A48 Timeseries Graph |
n/m | 32 (1 Low) | n/m | 3 (1 Low) | 8 (1 Low) *1 | 04/10/2026 17:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
60 (2 Low) | 27 (1 Low) | n/m | n/m | n/m | 04/10/2026 20:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 29 (1 Low) | n/m | n/m | n/m | 04/10/2026 18:00:00 |
| Narberth Timeseries Graph |
56 (2 Low) | 5 (1 Low) | 1 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 04/10/2026 10:45:00 |
| Newport Timeseries Graph |
n/m | 30 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 04/10/2026 15:00:00 |
| Port Talbot Margam Timeseries Graph |
59 (2 Low) | 9 (1 Low) | 2 (1 Low) | 5 (1 Low) | 12 (1 Low) *3 | 04/10/2026 09:30:00 |
| Swansea Roadside Timeseries Graph |
n/m | 25 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *1 | 04/10/2026 02:00:00 |
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 | 4 (1 Low) | 7 (1 Low) *2 | 04/10/2026 01:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 26 (1 Low) | n/m | n/m | n/m | 04/10/2026 17:00:00 |
| Bournemouth Timeseries Graph |
64 (2 Low) | 19 (1 Low) | n/m | 7 (1 Low) | n/m | 04/10/2026 04:00:00 |
| Bournemouth Bourne Valley Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 04/10/2026 07:00:00 |
| Bridgwater A372 Westonzoyland Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 04/10/2026 01:00:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 04/10/2026 20:00:00 |
| Bristol St Paul's Timeseries Graph |
62 (2 Low) | 35 (1 Low) | n/m | n/a | 12 (1 Low) *1 | 02/10/2026 05:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 46 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 04/10/2026 19:00:00 |
| Charlton Mackrell Timeseries Graph |
68 (3 Low) | 10 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 04/10/2026 01:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 04/10/2026 13:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 31 (1 Low) | n/m | 7 (1 Low) | n/m | 04/10/2026 08:00:00 |
| Exeter Roadside Timeseries Graph |
52 (2 Low) | 33 (1 Low) | n/m | n/m | n/m | 04/10/2026 19:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 13 (1 Low) *2 | 04/10/2026 19:00:00 |
| Honiton Timeseries Graph |
65 (2 Low) | 8 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 04/10/2026 02:00:00 |
| Plymouth Centre Timeseries Graph |
49 (2 Low) | 31 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 04/10/2026 01:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 33 (1 Low) | n/m | n/m | n/m | 03/10/2026 22:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 12 (1 Low) *1 | 04/10/2026 01:00:00 |
| Swindon Walcot Timeseries Graph |
66 (2 Low) | 30 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 04/10/2026 09:00:00 |
| Yarner Wood Timeseries Graph |
55 (2 Low) | 3 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 04/10/2026 01:00:00 |
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 |
71 (3 Low) | n/m | n/m | n/m | n/m | 04/10/2026 07:00:00 |
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 | 9 (1 Low) | 14 (1 Low) *2 | 04/10/2026 13:00:00 |
| Birmingham A4540 Roadside Timeseries Graph |
48 (2 Low) | 58 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) *2 | 04/10/2026 13:00:00 |
| Birmingham Hall Green Timeseries Graph |
63 (2 Low) | 49 (1 Low) | n/m | 10 (1 Low) | 15 (1 Low) *2 | 04/10/2026 11:00:00 |
| Birmingham Ladywood Timeseries Graph |
51 (2 Low) | 48 (1 Low) | 4 (1 Low) | 8 (1 Low) | 12 (1 Low) *2 | 03/10/2026 23:30:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 10 (1 Low) *2 | 04/10/2026 11:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
53 (2 Low) | 38 (1 Low) | n/m | 9 (1 Low) | 13 (1 Low) *2 | 04/10/2026 13:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 32 (1 Low) | n/m | 6 (1 Low) | n/m | 04/10/2026 13:00:00 |
| Coventry Allesley Timeseries Graph |
55 (2 Low) | 30 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 04/10/2026 12:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 58 (1 Low) | n/m | 10 (1 Low) | 15 (1 Low) *2 | 04/10/2026 13:00:00 |
| Leamington Spa Timeseries Graph |
64 (2 Low) | 29 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 04/10/2026 13:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 29 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 04/10/2026 14:00:00 |
| Leominster Timeseries Graph |
57 (2 Low) | 16 (1 Low) | n/m | n/m | n/m | 04/10/2026 19:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 66 (1 Low) | n/m | 11 (1 Low) | 16 (1 Low) *2 | 04/10/2026 14:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 04/10/2026 10:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 04/10/2026 12:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
47 (2 Low) | 40 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 04/10/2026 11:00:00 |
| Telford Hollinswood Timeseries Graph |
58 (2 Low) | 43 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 04/10/2026 10:00:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 16 (1 Low) *2 | 04/10/2026 13:00:00 |
| Walsall Woodlands Timeseries Graph |
53 (2 Low) | 31 (1 Low) | n/m | n/m | n/m | 04/10/2026 18:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
51 (2 Low) | 52 (1 Low) | n/m | n/m | n/m | 04/10/2026 18:00:00 |
| Wolverhampton East Park Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 17 (2 Low) *2 | 04/10/2026 12:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 9 (1 Low) *2 | 04/10/2026 12:00:00 |
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 |
55 (2 Low) | 24 (1 Low) | 3 (1 Low) | 5 (1 Low) | 11 (1 Low) *2 | 04/10/2026 11:15:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 68 (2 Low) | n/m | n/m | n/m | 03/10/2026 22:00:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 12 (1 Low) *2 | 04/10/2026 14:00:00 |
| Bradford West Park Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 04/10/2026 12:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
58 (2 Low) | 40 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 04/10/2026 12:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 50 (1 Low) | n/m | 8 (1 Low) | n/m | 04/10/2026 15:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 04/10/2026 11:00:00 |
| High Muffles Timeseries Graph |
53 (2 Low) | 13 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 04/10/2026 14:00:00 |
| Hull Freetown Timeseries Graph |
47 (2 Low) | 53 (1 Low) | 3 (1 Low) | 10 (1 Low) | 17 (2 Low) *2 | 03/10/2026 24:15: |
| Hull Holderness Road Timeseries Graph |
n/m | 47 (1 Low) | n/m | 11 (1 Low) | 18 (2 Low) *2 | 04/10/2026 18:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
64 (2 Low) | 18 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 04/10/2026 16:00:00 |
| Leeds Centre Timeseries Graph |
56 (2 Low) | 43 (1 Low) | 2 (1 Low) | 7 (1 Low) | 12 (1 Low) *2 | 04/10/2026 10:15:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 33 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) *1 | 04/10/2026 09:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 14 (1 Low) *2 | 04/10/2026 13:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 56 (1 Low) | 4 (1 Low) | 11 (1 Low) | 20 (2 Low) *1 | 03/10/2026 22:30:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 42 (1 Low) | n/m | 8 (1 Low) | n/m | 04/10/2026 17:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
59 (2 Low) | 44 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 04/10/2026 13:00:00 |
| Sheffield Tinsley Timeseries Graph |
48 (2 Low) | 45 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 04/10/2026 13:00:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 04/10/2026 11:00:00 |
| York Bootham Timeseries Graph |
40 (2 Low) | 61 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *1 | 04/10/2026 19:00:00 |
| York Fishergate Timeseries Graph |
n/m | 37 (1 Low) | n/m | 6 (1 Low) | 18 (2 Low) *1 | 04/10/2026 22:00:00 |
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