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 Thu 15th Jan 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 |
72 (3 Low) | n/m | n/m | 2 (1 Low) | 3 (1 Low) *2 | 15/01/2026 19:00 |
| Bush Estate Timeseries Graph |
75 (3 Low) | 14 (1 Low) | n/m | n/m | n/m | 15/01/2026 16:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 36 (1 Low) | n/m | n/m | n/m | 15/01/2026 19:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 54 (1 Low) | n/m | n/m | n/m | 15/01/2026 18:00 |
| Edinburgh St Leonards Timeseries Graph |
68 (3 Low) | 27 (1 Low) | 2 (1 Low) | 3 (1 Low) | 5 (1 Low) *2 | 15/01/2026 01:30 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 68 (2 Low) | n/m | n/m | n/m | 15/01/2026 19:00 |
| Glasgow High Street Timeseries Graph |
n/m | 57 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 15/01/2026 19:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 90 (2 Low) | n/m | n/m | n/m | 15/01/2026 19:00 |
| Glasgow Townhead Timeseries Graph |
69 (3 Low) | 48 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 15/01/2026 19:00 |
| Grangemouth Timeseries Graph |
n/m | 47 (1 Low) | 11 (1 Low) | 5 (1 Low) | 5 (1 Low) *1 | 15/01/2026 13:15 |
| Grangemouth Moray Timeseries Graph |
n/m | 56 (1 Low) | n/m | n/m | n/m | 15/01/2026 18:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 48 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 15/01/2026 06:00 |
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 |
53 (2 Low) | 47 (1 Low) | n/m | 10 (1 Low) | 13 (1 Low) *2 | 15/01/2026 17:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 60 (1 Low) | n/m | 10 (1 Low) | 15 (1 Low) *2 | 15/01/2026 08:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 74 (2 Low) | n/m | 11 (1 Low) | n/m | 15/01/2026 05:00 |
| Derby Stockbrook Park Timeseries Graph |
44 (2 Low) | n/m | n/m | 9 (1 Low) | 13 (1 Low) *2 | 15/01/2026 04:00 |
| Ladybower Timeseries Graph |
70 (3 Low) | 16 (1 Low) | 2 (1 Low) | 6 (1 Low) | 9 (1 Low) *2 | 14/01/2026 22:15 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 76 (2 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 15/01/2026 01:00 |
| Leicester University Timeseries Graph |
48 (2 Low) | 66 (1 Low) | n/m | 7 (1 Low) | 8 (1 Low) *2 | 15/01/2026 15:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 54 (1 Low) | n/m | n/m | n/m | 15/01/2026 18:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 11 (1 Low) *2 | 15/01/2026 02:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 16 (1 Low) *2 | 15/01/2026 12:00 |
| Northampton Spring Park Timeseries Graph |
55 (2 Low) | 48 (1 Low) | n/m | 14 (2 Low) | n/m | 14/01/2026 24:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 14 (1 Low) *2 | 15/01/2026 01:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
41 (2 Low) | 48 (1 Low) | 1 (1 Low) | 11 (1 Low) | 16 (1 Low) *2 | 15/01/2026 10:30 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 85 (2 Low) | n/m | 10 (1 Low) | 14 (1 Low) *2 | 15/01/2026 02:00 |
| Tallington Timeseries Graph |
58 (2 Low) | n/m | n/m | 9 (1 Low) | 13 (1 Low) *2 | 15/01/2026 02:00 |
| Toft Newton Timeseries Graph |
47 (2 Low) | 19 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 15/01/2026 03:00 |
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 | 37 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) *2 | 15/01/2026 01:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 12 (1 Low) *2 | 15/01/2026 01:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 49 (1 Low) | n/m | n/m | n/m | 15/01/2026 15:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 64 (1 Low) | n/m | 9 (1 Low) | n/m | 14/01/2026 24:00 |
| Norwich Lakenfields Timeseries Graph |
61 (2 Low) | 21 (1 Low) | n/m | 10 (1 Low) | 13 (1 Low) *2 | 15/01/2026 04:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 12 (1 Low) *2 | 15/01/2026 01:00 |
| Sibton Timeseries Graph |
65 (2 Low) | n/m | n/m | 8 (1 Low) | 10 (1 Low) *2 | 15/01/2026 05:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 12 (1 Low) *2 | 15/01/2026 03:00 |
| Southend-on-Sea Timeseries Graph |
64 (2 Low) | 21 (1 Low) | n/m | 9 (1 Low) | 13 (1 Low) *2 | 15/01/2026 02:00 |
| St Osyth Timeseries Graph |
74 (3 Low) | 20 (1 Low) | n/m | 9 (1 Low) | 12 (1 Low) *2 | 15/01/2026 04:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 28 (1 Low) | n/m | 13 (2 Low) | n/a | 14/01/2026 24:00 |
| Thurrock Timeseries Graph |
59 (2 Low) | 21 (1 Low) | 3 (1 Low) | 8 (1 Low) | 12 (1 Low) *2 | 15/01/2026 18:45 |
| Weybourne Timeseries Graph |
60 (2 Low) | n/m | n/m | 8 (1 Low) | 10 (1 Low) *2 | 15/01/2026 03:00 |
| Wicken Fen Timeseries Graph |
58 (2 Low) | 22 (1 Low) | 2 (1 Low) | 7 (1 Low) | 10 (1 Low) *2 | 15/01/2026 02:30 |
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 | 49 (1 Low) | n/m | 12 (2 Low) | 23 (2 Low) *1 | 15/01/2026 02:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 19 (2 Low) *1 | 15/01/2026 01:00 |
| Haringey Roadside Timeseries Graph |
n/m | 42 (1 Low) | n/m | n/m | n/m | 14/01/2026 21:00 |
| London Bexley Timeseries Graph |
n/m | 21 (1 Low) | n/m | 9 (1 Low) | 13 (1 Low) *2 | 15/01/2026 01:00 |
| London Bloomsbury Timeseries Graph |
56 (2 Low) | 34 (1 Low) | 2 (1 Low) | 8 (1 Low) | 12 (1 Low) *2 | 15/01/2026 16:15 |
| London Farringdon Street Timeseries Graph |
n/m | 57 (1 Low) | n/m | 10 (1 Low) | n/m | 14/01/2026 24:00 |
| London Haringey Priory Park South Timeseries Graph |
57 (2 Low) | 39 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 15/01/2026 01:00 |
| London Harlington Timeseries Graph |
57 (2 Low) | 57 (1 Low) | n/m | 7 (1 Low) | 9 (1 Low) *2 | 14/01/2026 24:00 |
| London Hillingdon Timeseries Graph |
40 (2 Low) | 50 (1 Low) | n/m | 10 (1 Low) | 18 (2 Low) *2 | 15/01/2026 01:00 |
| London Honor Oak Park Timeseries Graph |
69 (3 Low) | n/m | n/m | 7 (1 Low) | 10 (1 Low) *2 | 15/01/2026 01:00 |
| London Marylebone Road Timeseries Graph |
45 (2 Low) | 70 (2 Low) | 12 (1 Low) | 15 (2 Low) | 19 (2 Low) *1 | 15/01/2026 15:30 |
| London N. Kensington Timeseries Graph |
63 (2 Low) | 27 (1 Low) | 3 (1 Low) | 8 (1 Low) | 11 (1 Low) *2 | 15/01/2026 12:30 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 10 (1 Low) *2 | 14/01/2026 24:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 14/01/2026 24:00 |
| London Westminster Timeseries Graph |
57 (2 Low) | 28 (1 Low) | n/m | n/m | n/m | 15/01/2026 09:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 23 (1 Low) | n/m | n/m | 17 (2 Low) *1 | 14/01/2026 20:00 |
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 |
76 (3 Low) | 27 (1 Low) | n/m | n/m | n/m | 15/01/2026 16:00 |
| Inverness Timeseries Graph |
n/m | 33 (1 Low) | n/m | 2 (1 Low) | 3 (1 Low) *2 | 15/01/2026 01:00 |
| Lerwick Timeseries Graph |
75 (3 Low) | n/m | n/m | n/m | n/m | 14/01/2026 21:00 |
| Strathvaich Timeseries Graph |
90 (3 Low) | n/m | n/m | n/m | n/m | 14/01/2026 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 |
42 (2 Low) | 66 (1 Low) | n/m | 10 (1 Low) | 14 (1 Low) *2 | 15/01/2026 19:00 |
| Kielder Water Timeseries Graph |
71 (3 Low) | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 14/01/2026 24:00 |
| Middlesbrough Timeseries Graph |
56 (2 Low) | 47 (1 Low) | 2 (1 Low) | 5 (1 Low) | 12 (1 Low) *1 | 14/01/2026 22:15 |
| Newcastle Centre Timeseries Graph |
43 (2 Low) | 60 (1 Low) | n/m | 13 (2 Low) | 18 (2 Low) *1 | 15/01/2026 19:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 94 (2 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 15/01/2026 19:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 61 (1 Low) | n/m | 7 (1 Low) | n/m | 15/01/2026 07:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 49 (1 Low) | n/m | 11 (1 Low) | 15 (1 Low) *1 | 15/01/2026 19:00 |
| Sunderland Silksworth Timeseries Graph |
56 (2 Low) | 48 (1 Low) | n/m | 9 (1 Low) | 12 (1 Low) *2 | 15/01/2026 19:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 58 (1 Low) | n/m | 10 (1 Low) | n/m | 15/01/2026 19:00 |
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 |
64 (2 Low) | 27 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 15/01/2026 19:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 51 (1 Low) | n/m | n/m | n/m | 15/01/2026 17:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 40 (1 Low) | n/m | n/m | n/m | 15/01/2026 19:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 60 (1 Low) | n/m | n/m | n/m | 15/01/2026 09:00 |
North Wales
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Aston Hill Timeseries Graph |
71 (3 Low) | 9 (1 Low) | n/m | n/m | n/m | 15/01/2026 09:00 |
| Wrexham Timeseries Graph |
n/m | 64 (1 Low) | 8 (1 Low) | 9 (1 Low) | 13 (1 Low) *2 | 15/01/2026 17:15 |
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 | 58 (1 Low) | n/m | 9 (1 Low) | n/m | 15/01/2026 19:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 56 (1 Low) | n/m | n/m | n/m | 15/01/2026 18:00 |
| Blackburn Audley Park Timeseries Graph |
44 (2 Low) | n/m | n/m | 10 (1 Low) | 14 (1 Low) *2 | 15/01/2026 19:00 |
| Blackpool Marton Timeseries Graph |
39 (2 Low) | 48 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 15/01/2026 19:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | n/m | 15/01/2026 19:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 68 (2 Low) | n/m | n/m | 16 (1 Low) *1 | 15/01/2026 17:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 53 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *1 | 15/01/2026 19:00 |
| Crewe Coppenhall Timeseries Graph |
n/a | 44 (1 Low) | n/m | 9 (1 Low) | 12 (1 Low) *2 | 15/01/2026 19:00 |
| Glazebury Timeseries Graph |
44 (2 Low) | 43 (1 Low) | n/m | 9 (1 Low) | 12 (1 Low) *2 | 15/01/2026 19:00 |
| Liverpool Speke Timeseries Graph |
47 (2 Low) | 52 (1 Low) | 6 (1 Low) | 8 (1 Low) | 16 (1 Low) *1 | 14/01/2026 21:45 |
| Liverpool Thirlmere Park Timeseries Graph |
46 (2 Low) | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 15/01/2026 19:00 |
| Manchester Piccadilly Timeseries Graph |
33 (1 Low) | 78 (2 Low) | 4 (1 Low) | 10 (1 Low) | 15 (1 Low) *2 | 15/01/2026 17:30 |
| Manchester Sharston Timeseries Graph |
53 (2 Low) | 56 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 14/01/2026 17:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | n/m | 15/01/2026 19:00 |
| Preston Timeseries Graph |
40 (2 Low) | 63 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 15/01/2026 19:00 |
| Salford Eccles Timeseries Graph |
43 (2 Low) | 79 (2 Low) | n/m | 12 (2 Low) | 18 (2 Low) *2 | 15/01/2026 19:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 64 (1 Low) | n/m | n/m | n/m | 15/01/2026 19:00 |
| St Helens Linkway Timeseries Graph |
n/m | n/a | n/m | n/m | 16 (1 Low) *1 | 13/12/2025 09:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | n/a | n/m | 14/01/2026 08:00 |
| Warrington Timeseries Graph |
n/m | 47 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *1 | 15/01/2026 19:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 76 (2 Low) | n/m | n/m | n/m | 15/01/2026 09:00 |
| Wigan Centre Timeseries Graph |
29 (1 Low) | 63 (1 Low) | n/m | 11 (1 Low) | 17 (2 Low) *2 | 15/01/2026 19:00 |
| Wirral Tranmere Timeseries Graph |
50 (2 Low) | 51 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 15/01/2026 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 | 81 (2 Low) | n/m | n/m | 15 (1 Low) *1 | 15/01/2026 18:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 66 (1 Low) | n/m | n/m | n/m | 15/01/2026 19:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 54 (1 Low) | 58 (1 Low) | n/m | n/m | 15/01/2026 18:00 |
| Belfast Centre Timeseries Graph |
57 (2 Low) | 61 (1 Low) | 4 (1 Low) | 6 (1 Low) | 11 (1 Low) *2 | 15/01/2026 19:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 117 (2 Low) | n/m | n/m | 17 (2 Low) *1 | 15/01/2026 18:00 |
| Derry Rosemount Timeseries Graph |
60 (2 Low) | 33 (1 Low) | n/a | 4 (1 Low) | 8 (1 Low) *1 | 09/01/2026 16:45 |
| Lough Navar Timeseries Graph |
55 (2 Low) | n/m | n/m | 3 (1 Low) | 4 (1 Low) *2 | 15/01/2026 18:00 |
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 | 71 (2 Low) | n/m | n/m | n/m | 15/01/2026 19:00 |
| Eskdalemuir Timeseries Graph |
69 (3 Low) | 7 (1 Low) | n/m | n/m | n/m | 15/01/2026 13:00 |
| Peebles Timeseries Graph |
73 (3 Low) | 31 (1 Low) | n/m | n/m | n/m | 15/01/2026 15:00 |
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 | 8 (1 Low) | n/m | 14/01/2026 24:00 |
| Brighton Preston Park Timeseries Graph |
64 (2 Low) | 20 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 15/01/2026 16:00 |
| Chatham Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | 8 (1 Low) | 18 (2 Low) *1 | 15/01/2026 01:00 |
| Chilbolton Observatory Timeseries Graph |
71 (3 Low) | 5 (1 Low) | 2 (1 Low) | 4 (1 Low) | 5 (1 Low) *2 | 14/01/2026 22:30 |
| Eastbourne Timeseries Graph |
72 (3 Low) | 15 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 15/01/2026 15:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 9 (1 Low) *2 | 14/01/2026 24:00 |
| Horley Timeseries Graph |
n/m | 47 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 15/01/2026 08:00 |
| Lullington Heath Timeseries Graph |
79 (3 Low) | 14 (1 Low) | 3 (1 Low) | 9 (1 Low) | 12 (1 Low) *2 | 14/01/2026 21:45 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 13 (1 Low) *2 | 15/01/2026 02:00 |
| Milton Keynes Civic Centre Timeseries Graph |
60 (2 Low) | n/m | n/m | 7 (1 Low) | 10 (1 Low) *2 | 14/01/2026 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 |
53 (2 Low) | 46 (1 Low) | n/m | 7 (1 Low) | 9 (1 Low) *2 | 14/01/2026 24:00 |
| Portsmouth Timeseries Graph |
66 (2 Low) | 28 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 15/01/2026 06:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 42 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 15/01/2026 07:00 |
| Reading London Road Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/a | 15/01/2026 14:00 |
| Reading New Town Timeseries Graph |
53 (2 Low) | 23 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) *2 | 14/01/2026 24:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 14/01/2026 24:00 |
| Rochester Stoke Timeseries Graph |
70 (3 Low) | 12 (1 Low) | 2 (1 Low) | 9 (1 Low) | 13 (1 Low) *2 | 15/01/2026 17:45 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 13 (1 Low) *2 | 14/01/2026 24:00 |
| Southampton A33 Timeseries Graph |
n/m | 55 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 15/01/2026 06:00 |
| Southampton Centre Timeseries Graph |
66 (2 Low) | 46 (1 Low) | 3 (1 Low) | 7 (1 Low) | 12 (1 Low) *2 | 15/01/2026 12:00 |
| Storrington Roadside Timeseries Graph |
n/m | 16 (1 Low) | n/m | 10 (1 Low) | 15 (1 Low) *2 | 15/01/2026 07:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 29 (1 Low) | n/m | 13 (2 Low) | n/m | 15/01/2026 02:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 21 (2 Low) *2 | 15/01/2026 18:00 |
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 |
51 (2 Low) | 67 (1 Low) | 4 (1 Low) | 11 (1 Low) | 14 (1 Low) *1 | 15/01/2026 09:45 |
| Cardiff Newport Road Timeseries Graph |
n/m | 72 (2 Low) | n/m | n/m | 19 (2 Low) *1 | 15/01/2026 19:00 |
| Chepstow A48 Timeseries Graph |
n/m | 63 (1 Low) | n/m | 10 (1 Low) | 15 (1 Low) *1 | 15/01/2026 01:00 |
| Cwmbran Crownbridge Timeseries Graph |
45 (2 Low) | 54 (1 Low) | n/m | n/m | n/m | 15/01/2026 07:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 61 (1 Low) | n/m | n/m | n/m | 15/01/2026 12:00 |
| Narberth Timeseries Graph |
75 (3 Low) | 11 (1 Low) | 1 (1 Low) | 7 (1 Low) | 14 (1 Low) *2 | 15/01/2026 11:00 |
| Newport Timeseries Graph |
n/m | 58 (1 Low) | n/m | 10 (1 Low) | 14 (1 Low) *2 | 14/01/2026 24:00 |
| Port Talbot Margam Timeseries Graph |
63 (2 Low) | 68 (2 Low) | 2 (1 Low) | 5 (1 Low) | 16 (1 Low) *3 | 15/01/2026 18:45 |
| Swansea Roadside Timeseries Graph |
n/m | 74 (2 Low) | n/m | 10 (1 Low) | 18 (2 Low) *1 | 15/01/2026 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 | 5 (1 Low) | 9 (1 Low) *2 | 15/01/2026 10:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 58 (1 Low) | n/m | n/m | n/m | 15/01/2026 10:00 |
| Bournemouth Timeseries Graph |
73 (3 Low) | 31 (1 Low) | n/m | 9 (1 Low) | n/m | 14/01/2026 24:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 10 (1 Low) *2 | 14/01/2026 24:00 |
| Bristol St Paul's Timeseries Graph |
47 (2 Low) | 78 (2 Low) | n/m | 9 (1 Low) | 13 (1 Low) *1 | 15/01/2026 01:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 79 (2 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 14/01/2026 24:00 |
| Charlton Mackrell Timeseries Graph |
72 (3 Low) | 12 (1 Low) | n/m | 5 (1 Low) | 7 (1 Low) *2 | 15/01/2026 01:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 14/01/2026 24:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 30 (1 Low) | n/m | 8 (1 Low) | n/m | 14/01/2026 24:00 |
| Exeter Roadside Timeseries Graph |
52 (2 Low) | 69 (2 Low) | n/m | n/m | n/m | 15/01/2026 04:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 10 (1 Low) *2 | 14/01/2026 24:00 |
| Honiton Timeseries Graph |
74 (3 Low) | 33 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 15/01/2026 08:00 |
| Plymouth Centre Timeseries Graph |
73 (3 Low) | 95 (2 Low) | n/m | 7 (1 Low) | 17 (2 Low) *2 | 15/01/2026 08:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 90 (2 Low) | n/m | n/m | n/m | 15/01/2026 18:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 13 (1 Low) *1 | 13/01/2026 24:00 |
| Swindon Walcot Timeseries Graph |
62 (2 Low) | 29 (1 Low) | n/m | 5 (1 Low) | 7 (1 Low) *2 | 14/01/2026 24:00 |
| Yarner Wood Timeseries Graph |
72 (3 Low) | 6 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 15/01/2026 09:00 |
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 |
91 (3 Low) | n/m | n/m | n/m | n/m | 15/01/2026 06:00 |
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 |
43 (2 Low) | 66 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 15/01/2026 09:00 |
| Birmingham Hall Green Timeseries Graph |
59 (2 Low) | 52 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 15/01/2026 02:00 |
| Birmingham Ladywood Timeseries Graph |
41 (2 Low) | 57 (1 Low) | 2 (1 Low) | 7 (1 Low) | 10 (1 Low) *2 | 15/01/2026 15:30 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 11 (1 Low) *2 | 15/01/2026 09:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
35 (2 Low) | 54 (1 Low) | n/m | 10 (1 Low) | 13 (1 Low) *2 | 15/01/2026 04:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 63 (1 Low) | n/m | 8 (1 Low) | n/m | 15/01/2026 17:00 |
| Coventry Allesley Timeseries Graph |
48 (2 Low) | 55 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 15/01/2026 01:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 52 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *2 | 14/01/2026 24:00 |
| Leamington Spa Timeseries Graph |
51 (2 Low) | 45 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *2 | 14/01/2026 24:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 49 (1 Low) | n/m | 7 (1 Low) | 9 (1 Low) *2 | 15/01/2026 01:00 |
| Leominster Timeseries Graph |
36 (2 Low) | 44 (1 Low) | n/m | n/m | n/m | 15/01/2026 06:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 73 (2 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 15/01/2026 15:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 13 (1 Low) *2 | 15/01/2026 19:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 73 (2 Low) | n/m | 11 (1 Low) | 20 (2 Low) *2 | 15/01/2026 19:00 |
| Stoke-on-Trent Centre Timeseries Graph |
34 (2 Low) | 68 (2 Low) | n/m | 10 (1 Low) | 13 (1 Low) *2 | 15/01/2026 19:00 |
| Telford Hollinswood Timeseries Graph |
31 (1 Low) | 55 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) *2 | 15/01/2026 19:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 13 (1 Low) *2 | 14/01/2026 24:00 |
| Walsall Woodlands Timeseries Graph |
49 (2 Low) | 55 (1 Low) | n/m | n/m | n/m | 15/01/2026 07:00 |
| West Bromwich Kenrick Park Timeseries Graph |
51 (2 Low) | 61 (1 Low) | n/m | n/m | n/m | 15/01/2026 08:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 10 (1 Low) *2 | 15/01/2026 02:00 |
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 |
47 (2 Low) | 65 (1 Low) | 10 (1 Low) | 11 (1 Low) | 15 (1 Low) *2 | 14/01/2026 21:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 88 (2 Low) | n/m | n/m | n/m | 15/01/2026 17:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 17 (2 Low) *2 | 15/01/2026 19:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
56 (2 Low) | 65 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) *2 | 14/01/2026 24:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 62 (1 Low) | n/m | 11 (1 Low) | n/m | 15/01/2026 18:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 15 (1 Low) *2 | 15/01/2026 19:00 |
| High Muffles Timeseries Graph |
43 (2 Low) | 19 (1 Low) | n/m | 7 (1 Low) | 9 (1 Low) *2 | 15/01/2026 08:00 |
| Hull Freetown Timeseries Graph |
29 (1 Low) | 65 (1 Low) | 5 (1 Low) | 11 (1 Low) | 18 (2 Low) *2 | 15/01/2026 17:15 |
| Hull Holderness Road Timeseries Graph |
n/m | 73 (2 Low) | n/m | 11 (1 Low) | 17 (2 Low) *2 | 15/01/2026 04:00 |
| Immingham Woodlands Avenue Timeseries Graph |
53 (2 Low) | 51 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 15/01/2026 04:00 |
| Leeds Centre Timeseries Graph |
30 (1 Low) | 68 (2 Low) | 8 (1 Low) | 12 (2 Low) | 18 (2 Low) *2 | 14/01/2026 21:45 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 68 (2 Low) | n/m | 15 (2 Low) | 22 (2 Low) *1 | 15/01/2026 02:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 17 (2 Low) *2 | 15/01/2026 18:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 45 (1 Low) | 3 (1 Low) | 11 (1 Low) | 14 (1 Low) *1 | 15/01/2026 15:30 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 82 (2 Low) | n/m | 12 (2 Low) | n/m | 15/01/2026 19:00 |
| Sheffield Devonshire Green Timeseries Graph |
49 (2 Low) | 59 (1 Low) | n/m | 10 (1 Low) | 14 (1 Low) *2 | 15/01/2026 19:00 |
| Sheffield Tinsley Timeseries Graph |
39 (2 Low) | 60 (1 Low) | n/m | 12 (2 Low) | 21 (2 Low) *2 | 15/01/2026 17:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 17 (2 Low) *2 | 15/01/2026 02:00 |
| York Bootham Timeseries Graph |
24 (1 Low) | 40 (1 Low) | n/m | 13 (2 Low) | 20 (2 Low) *1 | 15/01/2026 19:00 |
| York Fishergate Timeseries Graph |
n/m | 54 (1 Low) | n/m | 12 (2 Low) | 21 (2 Low) *1 | 15/01/2026 19:00 |
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