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 6pm Sat 1st Aug 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 |
65 (2 Low) | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 01/08/2026 18:00:00 |
| Bush Estate Timeseries Graph |
69 (3 Low) | 1 (1 Low) | n/m | n/m | n/m | 31/07/2026 19:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 12 (1 Low) | n/m | n/m | n/m | 01/08/2026 16:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 33 (1 Low) | n/m | n/m | n/m | 31/07/2026 20:00:00 |
| Edinburgh St Leonards Timeseries Graph |
57 (2 Low) | 18 (1 Low) | 2 (1 Low) | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 16:30:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 11 (1 Low) | n/m | n/m | n/m | 31/07/2026 24:00: |
| Glasgow High Street Timeseries Graph |
n/m | 14 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 01/08/2026 18:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 41 (1 Low) | n/m | n/m | n/m | 01/08/2026 17:00:00 |
| Glasgow Townhead Timeseries Graph |
71 (3 Low) | 10 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 18:00:00 |
| Grangemouth Timeseries Graph |
n/m | 3 (1 Low) | 4 (1 Low) | 8 (1 Low) | 12 (1 Low) *1 | 31/07/2026 23:15:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 4 (1 Low) | n/m | n/m | n/m | 01/08/2026 01:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 16 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 01/08/2026 18:00:00 |
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 |
83 (3 Low) | n/a | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 12:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 9 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 12:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 27 (1 Low) | n/m | 5 (1 Low) | n/m | 01/08/2026 12:00:00 |
| Derby Stockbrook Park Timeseries Graph |
79 (3 Low) | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 12:00:00 |
| Ladybower Timeseries Graph |
87 (3 Low) | 6 (1 Low) | 3 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 01:45:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 62 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 01/08/2026 14:00:00 |
| Leicester University Timeseries Graph |
78 (3 Low) | 26 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 11:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 29 (1 Low) | n/m | n/m | n/m | 31/07/2026 24:00: |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 12:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 12:00:00 |
| Northampton Spring Park Timeseries Graph |
83 (3 Low) | 19 (1 Low) | n/m | 10 (1 Low) | n/m | 01/08/2026 17:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 12:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
81 (3 Low) | 22 (1 Low) | 1 (1 Low) | 5 (1 Low) | 12 (1 Low) *2 | 01/08/2026 10:00:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 27 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 01/08/2026 11:00:00 |
| Tallington Timeseries Graph |
94 (3 Low) | n/m | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 01:00:00 |
| Toft Newton Timeseries Graph |
92 (3 Low) | 6 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 12:00:00 |
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 | 13 (1 Low) | n/m | 4 (1 Low) | 12 (1 Low) *2 | 01/08/2026 06:00:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 12 (1 Low) *2 | 01/08/2026 18:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 44 (1 Low) | n/m | n/m | n/m | 01/08/2026 18:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 50 (1 Low) | n/m | 5 (1 Low) | n/m | 01/08/2026 17:00:00 |
| Norwich Lakenfields Timeseries Graph |
79 (3 Low) | 18 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 18:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 03:00:00 |
| Sibton Timeseries Graph |
82 (3 Low) | n/m | n/m | 4 (1 Low) | 15 (1 Low) *2 | 01/08/2026 18:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 12:00:00 |
| Southend-on-Sea Timeseries Graph |
87 (3 Low) | 14 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 01/08/2026 14:00:00 |
| St Osyth Timeseries Graph |
97 (3 Low) | 7 (1 Low) | n/m | 4 (1 Low) | 13 (1 Low) *2 | 01/08/2026 18:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 41 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *1 | 01/08/2026 16:00:00 |
| Stevenage St Georges Way South Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 01/08/2026 05:00:00 |
| Thurrock Timeseries Graph |
87 (3 Low) | 23 (1 Low) | 3 (1 Low) | 5 (1 Low) | 13 (1 Low) *2 | 01/08/2026 07:30:00 |
| Weybourne Timeseries Graph |
73 (3 Low) | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 18:00:00 |
| Wicken Fen Timeseries Graph |
83 (3 Low) | 11 (1 Low) | n/a | 4 (1 Low) | 11 (1 Low) *2 | 30/07/2026 05:00:00 |
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 | 35 (1 Low) | n/m | 10 (1 Low) | 22 (2 Low) *1 | 01/08/2026 07:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 39 (3 Low) *1 | 01/08/2026 05:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 26 (1 Low) | n/m | n/m | n/m | 31/07/2026 23:00:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 01/08/2026 18:00:00 |
| London Bexley Timeseries Graph |
n/m | n/a | n/m | 3 (1 Low) | 9 (1 Low) *2 | 31/07/2026 01:00:00 |
| London Bloomsbury Timeseries Graph |
85 (3 Low) | 49 (1 Low) | 2 (1 Low) | 5 (1 Low) | 13 (1 Low) *2 | 31/07/2026 21:15:00 |
| London Farringdon Street Timeseries Graph |
n/m | 44 (1 Low) | n/m | 6 (1 Low) | n/m | 01/08/2026 18:00:00 |
| London Haringey Priory Park South Timeseries Graph |
91 (3 Low) | 19 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *2 | 01/08/2026 18:00:00 |
| London Harlington Timeseries Graph |
93 (3 Low) | 23 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 18:00:00 |
| London Hillingdon Timeseries Graph |
97 (3 Low) | 21 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 01/08/2026 18:00:00 |
| London Honor Oak Park Timeseries Graph |
110 (4 Moderate) | n/m | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 18:00:00 |
| London Marylebone Road Timeseries Graph |
86 (3 Low) | 32 (1 Low) | 5 (1 Low) | 8 (1 Low) | 16 (1 Low) *1 | 01/08/2026 04:00:00 |
| London N. Kensington Timeseries Graph |
100 (3 Low) | 15 (1 Low) | 2 (1 Low) | 4 (1 Low) | 11 (1 Low) *2 | 01/08/2026 08:00:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 12 (1 Low) *2 | 01/08/2026 18:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 16 (1 Low) *2 | 01/08/2026 18:00:00 |
| London Westminster Timeseries Graph |
92 (3 Low) | 19 (1 Low) | n/m | n/m | n/m | 31/07/2026 21:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 31 (1 Low) | n/m | n/m | 29 (2 Low) *1 | 31/07/2026 20:00:00 |
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) | 11 (1 Low) | n/m | n/m | n/m | 01/08/2026 18:00:00 |
| Inverness Timeseries Graph |
n/m | 19 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 01/08/2026 18:00:00 |
| Lerwick Timeseries Graph |
69 (3 Low) | n/m | n/m | n/m | n/m | 31/07/2026 20:00:00 |
| Strathvaich Timeseries Graph |
73 (3 Low) | n/m | n/m | n/m | n/m | 01/08/2026 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 | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 08:00:00 |
| Hartlepool St Abbs Walk Timeseries Graph |
86 (3 Low) | 4 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 07:00:00 |
| Kielder Water Timeseries Graph |
64 (2 Low) | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 01/08/2026 18:00:00 |
| Middlesbrough Timeseries Graph |
66 (2 Low) | 6 (1 Low) | 1 (1 Low) | 3 (1 Low) | 10 (1 Low) *1 | 01/08/2026 05:30:00 |
| Newcastle Centre Timeseries Graph |
64 (2 Low) | 19 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *1 | 01/08/2026 11:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | n/a | n/m | n/a | n/a | 10/07/2026 10:00:00 |
| North Shields Chirton Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 6 (1 Low) *2 | 01/08/2026 16:00:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 11 (1 Low) *2 | 01/08/2026 09:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 6 (1 Low) | n/m | 5 (1 Low) | n/m | 01/08/2026 08:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 3 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *1 | 01/08/2026 07:00:00 |
| Sunderland Silksworth Timeseries Graph |
63 (2 Low) | 14 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 01/08/2026 09:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 8 (1 Low) | n/m | 3 (1 Low) | n/m | 01/08/2026 07:00:00 |
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 |
54 (2 Low) | 44 (1 Low) | n/m | 2 (1 Low) | 4 (1 Low) *2 | 01/08/2026 18:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 47 (1 Low) | n/m | n/m | n/m | 31/07/2026 21:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 14 (1 Low) | n/m | n/m | n/m | 31/07/2026 23:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 12 (1 Low) | n/m | n/m | n/m | 01/08/2026 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 |
76 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 31/07/2026 20:00:00 |
| Wrexham Timeseries Graph |
n/m | 7 (1 Low) | 2 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 01/08/2026 08:30:00 |
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 | 7 (1 Low) | n/m | 5 (1 Low) | n/m | 01/08/2026 09:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 23 (1 Low) | n/m | n/m | n/m | 31/07/2026 23:00:00 |
| Blackburn Audley Park Timeseries Graph |
67 (3 Low) | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 01/08/2026 02:00:00 |
| Blackpool Marton Timeseries Graph |
75 (3 Low) | 4 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 03:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 01/08/2026 03:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | 15 (1 Low) *1 | 31/07/2026 23:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 7 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *1 | 01/08/2026 18:00:00 |
| Crewe Coppenhall Timeseries Graph |
79 (3 Low) | 9 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 02:00:00 |
| Glazebury Timeseries Graph |
74 (3 Low) | 13 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 01:00:00 |
| Liverpool Speke Timeseries Graph |
76 (3 Low) | 7 (1 Low) | 3 (1 Low) | 6 (1 Low) | 14 (1 Low) *1 | 01/08/2026 03:45:00 |
| Liverpool Thirlmere Park Timeseries Graph |
71 (3 Low) | n/m | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 10:00:00 |
| Manchester Piccadilly Timeseries Graph |
65 (2 Low) | 21 (1 Low) | 2 (1 Low) | 7 (1 Low) | 14 (1 Low) *2 | 01/08/2026 02:30:00 |
| Manchester Sharston Timeseries Graph |
77 (3 Low) | 32 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 06:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 01/08/2026 03:00:00 |
| Preston Timeseries Graph |
70 (3 Low) | 14 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 06:00:00 |
| Rochdale Belfield Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 01/08/2026 08:00:00 |
| Salford Eccles Timeseries Graph |
78 (3 Low) | 13 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 01/08/2026 02:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/m | n/m | 31/07/2026 22:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/m | 12 (1 Low) *1 | 31/07/2026 11:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 01/08/2026 04:00:00 |
| Warrington Timeseries Graph |
n/m | n/a | n/m | 2 (1 Low) | 10 (1 Low) *1 | 01/08/2026 10:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 01/08/2026 08:00:00 |
| Wigan Centre Timeseries Graph |
73 (3 Low) | 24 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 01/08/2026 03:00:00 |
| Wirral Tranmere Timeseries Graph |
76 (3 Low) | 4 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 01/08/2026 10:00:00 |
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 | 33 (1 Low) | n/m | n/m | 17 (2 Low) *1 | 31/07/2026 21:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 31/07/2026 20:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 15 (1 Low) | 3 (1 Low) | n/m | n/m | 31/07/2026 24:15: |
| Belfast Centre Timeseries Graph |
60 (2 Low) | 33 (1 Low) | n/a | 6 (1 Low) | 11 (1 Low) *2 | 31/07/2026 09:45:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 40 (1 Low) | n/m | n/m | 16 (1 Low) *1 | 31/07/2026 22:00:00 |
| Derry Rosemount Timeseries Graph |
65 (2 Low) | 5 (1 Low) | 1 (1 Low) | 3 (1 Low) | 12 (1 Low) *1 | 31/07/2026 19:30:00 |
| Lough Navar Timeseries Graph |
60 (2 Low) | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 01/08/2026 18:00:00 |
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 | 21 (1 Low) | n/m | n/m | n/m | 01/08/2026 17:00:00 |
| Eskdalemuir Timeseries Graph |
60 (2 Low) | 1 (1 Low) | n/m | n/m | n/m | 31/07/2026 19:00:00 |
| Peebles Timeseries Graph |
65 (2 Low) | 4 (1 Low) | n/m | n/m | n/m | 31/07/2026 20:00:00 |
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 | 4 (1 Low) | n/m | 01/08/2026 17:00:00 |
| Brighton Preston Park Timeseries Graph |
64 (2 Low) | 72 (2 Low) | n/m | 8 (1 Low) | 43 (3 Low) *2 | 01/08/2026 18:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | n/a | n/m | 4 (1 Low) | 18 (2 Low) *1 | 01/08/2026 17:00:00 |
| Chilbolton Observatory Timeseries Graph |
97 (3 Low) | 4 (1 Low) | 5 (1 Low) | 4 (1 Low) | 12 (1 Low) *2 | 31/07/2026 11:15:00 |
| Eastbourne Timeseries Graph |
96 (3 Low) | n/a | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 18:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 18:00:00 |
| Horley Timeseries Graph |
n/m | 11 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 18:00:00 |
| Lullington Heath Timeseries Graph |
107 (4 Moderate) | 6 (1 Low) | n/a | 4 (1 Low) | 10 (1 Low) *2 | 31/07/2026 02:15:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 21 (2 Low) *2 | 01/08/2026 01:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
83 (3 Low) | n/m | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 15:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 23 (1 Low) | n/m | n/m | n/m | 01/08/2026 07:00:00 |
| Oxford St Ebbes Timeseries Graph |
83 (3 Low) | 33 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 01/08/2026 18:00:00 |
| Portsmouth Timeseries Graph |
85 (3 Low) | 11 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 18:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 29 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 18:00:00 |
| Reading London Road Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 31/07/2026 21:00:00 |
| Reading New Town Timeseries Graph |
86 (3 Low) | 9 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 18:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 01/08/2026 18:00:00 |
| Rochester Stoke Timeseries Graph |
99 (3 Low) | 15 (1 Low) | 1 (1 Low) | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 08:15:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 12 (1 Low) *2 | 01/08/2026 18:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 27 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 18:00:00 |
| Southampton Centre Timeseries Graph |
87 (3 Low) | 16 (1 Low) | 0 (1 Low) | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 16:15:00 |
| Storrington Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | 5 (1 Low) | 21 (2 Low) *2 | 01/08/2026 09:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 32 (1 Low) | n/m | 7 (1 Low) | n/m | 01/08/2026 10:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 12 (1 Low) *2 | 01/08/2026 18:00:00 |
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 |
70 (3 Low) | 33 (1 Low) | 1 (1 Low) | 7 (1 Low) | 16 (1 Low) *1 | 31/07/2026 22:00:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 01/08/2026 07:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 25 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *1 | 01/08/2026 17:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
81 (3 Low) | 8 (1 Low) | n/m | n/m | n/m | 31/07/2026 19:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 18 (1 Low) | n/m | n/m | n/m | 31/07/2026 24:00: |
| Narberth Timeseries Graph |
71 (3 Low) | 1 (1 Low) | 2 (1 Low) | 4 (1 Low) | 10 (1 Low) *2 | 31/07/2026 18:45:00 |
| Newport Timeseries Graph |
n/m | 20 (1 Low) | n/m | 11 (1 Low) | 16 (1 Low) *2 | 01/08/2026 18:00:00 |
| Port Talbot Margam Timeseries Graph |
73 (3 Low) | 10 (1 Low) | 2 (1 Low) | 9 (1 Low) | 24 (2 Low) *3 | 01/08/2026 17:45:00 |
| Swansea Roadside Timeseries Graph |
n/m | 14 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) *1 | 01/08/2026 10:00:00 |
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) | 8 (1 Low) *2 | 01/08/2026 09:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 01/08/2026 18:00:00 |
| Bournemouth Timeseries Graph |
85 (3 Low) | 7 (1 Low) | n/m | n/a | n/m | 29/07/2026 09:00:00 |
| Bournemouth Bourne Valley Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 18:00:00 |
| Bridgwater A372 Westonzoyland Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 01/08/2026 04:00:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 12:00:00 |
| Bristol St Paul's Timeseries Graph |
80 (3 Low) | 42 (1 Low) | n/m | 7 (1 Low) | n/a | 01/08/2026 13:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 40 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 01/08/2026 13:00:00 |
| Charlton Mackrell Timeseries Graph |
81 (3 Low) | 4 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 11:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 01/08/2026 03:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/a | n/m | 29/07/2026 01:00:00 |
| Exeter Roadside Timeseries Graph |
55 (2 Low) | 30 (1 Low) | n/m | n/m | n/m | 31/07/2026 21:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 18:00:00 |
| Honiton Timeseries Graph |
73 (3 Low) | 15 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 01/08/2026 08:00:00 |
| Plymouth Centre Timeseries Graph |
60 (2 Low) | 36 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 06:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 01/08/2026 07:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 2 (1 Low) | 11 (1 Low) *1 | 01/08/2026 14:00:00 |
| Swindon Walcot Timeseries Graph |
87 (3 Low) | 11 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 14:00:00 |
| Yarner Wood Timeseries Graph |
77 (3 Low) | 2 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 01/08/2026 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 |
74 (3 Low) | n/m | n/m | n/m | n/m | 31/07/2026 18:00:00 |
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 | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 13:00:00 |
| Birmingham A4540 Roadside Timeseries Graph |
60 (2 Low) | 32 (1 Low) | n/m | 5 (1 Low) | 13 (1 Low) *2 | 01/08/2026 05:00:00 |
| Birmingham Hall Green Timeseries Graph |
81 (3 Low) | 11 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 12:00:00 |
| Birmingham Ladywood Timeseries Graph |
n/a | 11 (1 Low) | 2 (1 Low) | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 13:15:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 12:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
77 (3 Low) | 25 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 12:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | 5 (1 Low) | n/m | 01/08/2026 05:00:00 |
| Coventry Allesley Timeseries Graph |
77 (3 Low) | 19 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 13:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 30 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 14:00:00 |
| Leamington Spa Timeseries Graph |
84 (3 Low) | 19 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 14:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 9 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 14:00:00 |
| Leominster Timeseries Graph |
77 (3 Low) | 6 (1 Low) | n/m | n/m | n/m | 31/07/2026 20:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 26 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 01/08/2026 02:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 11:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 35 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 05:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
65 (2 Low) | 24 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 02:00:00 |
| Telford Hollinswood Timeseries Graph |
86 (3 Low) | 10 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 12:00:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 13 (1 Low) *2 | 01/08/2026 03:00:00 |
| Walsall Woodlands Timeseries Graph |
80 (3 Low) | 11 (1 Low) | n/m | n/m | n/m | 31/07/2026 20:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
69 (3 Low) | 13 (1 Low) | n/m | n/m | n/m | 31/07/2026 21:00:00 |
| Wolverhampton East Park Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 11 (1 Low) *2 | 01/08/2026 03:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 11:00:00 |
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 |
82 (3 Low) | 9 (1 Low) | 1 (1 Low) | 6 (1 Low) | 19 (2 Low) *2 | 01/08/2026 12:15:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 31/07/2026 22:00:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 02:00:00 |
| Bradford West Park Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 13 (1 Low) *2 | 01/08/2026 11:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
74 (3 Low) | 23 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 09:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 36 (1 Low) | n/m | 5 (1 Low) | n/m | 01/08/2026 09:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 10:00:00 |
| High Muffles Timeseries Graph |
64 (2 Low) | 2 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 01/08/2026 09:00:00 |
| Hull Freetown Timeseries Graph |
76 (3 Low) | 31 (1 Low) | 2 (1 Low) | 5 (1 Low) | 13 (1 Low) *2 | 01/08/2026 08:15:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 26 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 01/08/2026 12:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
83 (3 Low) | 11 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 12:00:00 |
| Leeds Centre Timeseries Graph |
68 (3 Low) | 31 (1 Low) | 2 (1 Low) | 5 (1 Low) | 10 (1 Low) *2 | 31/07/2026 19:00:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 24 (1 Low) | n/m | 8 (1 Low) | 18 (2 Low) *1 | 01/08/2026 07:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 12 (1 Low) *2 | 01/08/2026 07:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 12 (1 Low) | 2 (1 Low) | 6 (1 Low) | 12 (1 Low) *1 | 01/08/2026 08:45:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 33 (1 Low) | n/m | 6 (1 Low) | n/m | 01/08/2026 08:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
77 (3 Low) | 15 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 10:00:00 |
| Sheffield Tinsley Timeseries Graph |
72 (3 Low) | 31 (1 Low) | n/m | 5 (1 Low) | 13 (1 Low) *2 | 01/08/2026 06:00:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 12 (1 Low) *2 | 01/08/2026 09:00:00 |
| York Bootham Timeseries Graph |
67 (3 Low) | 24 (1 Low) | n/m | 5 (1 Low) | 14 (1 Low) *1 | 01/08/2026 06:00:00 |
| York Fishergate Timeseries Graph |
n/m | 18 (1 Low) | n/m | 2 (1 Low) | 14 (1 Low) *1 | 01/08/2026 10:00:00 |
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