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 6am Mon 17th 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 |
57 (2 Low) | n/m | n/m | 2 (1 Low) | 3 (1 Low) *2 | 17/08/2026 06:00:00 |
| Bush Estate Timeseries Graph |
65 (2 Low) | 4 (1 Low) | n/m | n/m | n/m | 16/08/2026 19:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 18 (1 Low) | n/m | n/m | n/m | 16/08/2026 17:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | n/m | 16/08/2026 13:00:00 |
| Edinburgh St Leonards Timeseries Graph |
58 (2 Low) | 14 (1 Low) | 2 (1 Low) | 3 (1 Low) | 5 (1 Low) *2 | 17/08/2026 02:30:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 18 (1 Low) | n/m | n/m | n/m | 17/08/2026 06:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 21 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 17/08/2026 06:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 29 (1 Low) | n/m | n/m | n/m | 16/08/2026 20:00:00 |
| Glasgow Townhead Timeseries Graph |
62 (2 Low) | 18 (1 Low) | n/m | 2 (1 Low) | 4 (1 Low) *2 | 17/08/2026 04:00:00 |
| Grangemouth Timeseries Graph |
n/m | 8 (1 Low) | 4 (1 Low) | 5 (1 Low) | 5 (1 Low) *1 | 17/08/2026 01:45:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/m | n/m | 17/08/2026 01:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 22 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 17/08/2026 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 |
78 (3 Low) | 10 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 17/08/2026 06:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 9 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 17/08/2026 06:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 34 (1 Low) | n/m | 3 (1 Low) | n/m | 17/08/2026 06:00:00 |
| Derby Stockbrook Park Timeseries Graph |
83 (3 Low) | n/m | n/m | 3 (1 Low) | 8 (1 Low) *2 | 17/08/2026 06:00:00 |
| Ladybower Timeseries Graph |
88 (3 Low) | 7 (1 Low) | 2 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 16/08/2026 19:30:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 52 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *2 | 17/08/2026 06:00:00 |
| Leicester University Timeseries Graph |
84 (3 Low) | 34 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 17/08/2026 06:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 32 (1 Low) | n/m | n/m | n/m | 16/08/2026 19:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 7 (1 Low) *2 | 17/08/2026 06:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 7 (1 Low) *2 | 17/08/2026 06:00:00 |
| Northampton Spring Park Timeseries Graph |
84 (3 Low) | 19 (1 Low) | n/m | 9 (1 Low) | n/m | 17/08/2026 06:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 8 (1 Low) *2 | 17/08/2026 06:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
80 (3 Low) | 15 (1 Low) | 2 (1 Low) | 4 (1 Low) | 9 (1 Low) *2 | 16/08/2026 11:30:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 22 (1 Low) | n/m | 3 (1 Low) | 9 (1 Low) *2 | 17/08/2026 06:00:00 |
| Tallington Timeseries Graph |
91 (3 Low) | n/m | n/m | 3 (1 Low) | 9 (1 Low) *2 | 17/08/2026 03:00:00 |
| Toft Newton Timeseries Graph |
81 (3 Low) | 19 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 17/08/2026 06:00:00 |
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 | 11 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 06:00:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 12 (1 Low) *2 | 17/08/2026 02:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 16/08/2026 19:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 51 (1 Low) | n/m | 6 (1 Low) | n/m | 17/08/2026 06:00:00 |
| Norwich Lakenfields Timeseries Graph |
70 (3 Low) | 11 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 17/08/2026 01:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 10 (1 Low) *2 | 17/08/2026 04:00:00 |
| Sibton Timeseries Graph |
73 (3 Low) | n/m | n/m | 3 (1 Low) | 8 (1 Low) *2 | 17/08/2026 01:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 17/08/2026 06:00:00 |
| Southend-on-Sea Timeseries Graph |
79 (3 Low) | 16 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 06:00:00 |
| St Osyth Timeseries Graph |
85 (3 Low) | 10 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 17/08/2026 04:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 28 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *1 | 17/08/2026 06:00:00 |
| Stevenage St Georges Way South Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 17/08/2026 06:00:00 |
| Thurrock Timeseries Graph |
71 (3 Low) | 24 (1 Low) | 3 (1 Low) | 6 (1 Low) | 11 (1 Low) *2 | 17/08/2026 05:15:00 |
| Weybourne Timeseries Graph |
66 (2 Low) | n/m | n/m | 3 (1 Low) | 8 (1 Low) *2 | 17/08/2026 03:00:00 |
| Wicken Fen Timeseries Graph |
84 (3 Low) | 8 (1 Low) | 3 (1 Low) | 7 (1 Low) | 14 (1 Low) *2 | 17/08/2026 04:15:00 |
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 | 23 (1 Low) | n/m | 11 (1 Low) | 21 (2 Low) *1 | 17/08/2026 05:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 17 (2 Low) *1 | 17/08/2026 04:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | n/m | 16/08/2026 23:00:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 17/08/2026 06:00:00 |
| London Bexley Timeseries Graph |
n/m | 22 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 05:00:00 |
| London Bloomsbury Timeseries Graph |
77 (3 Low) | 18 (1 Low) | 2 (1 Low) | 6 (1 Low) | 14 (1 Low) *2 | 16/08/2026 09:30:00 |
| London Farringdon Street Timeseries Graph |
n/m | 31 (1 Low) | n/m | 6 (1 Low) | n/m | 17/08/2026 04:00:00 |
| London Haringey Priory Park South Timeseries Graph |
75 (3 Low) | 20 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 06:00:00 |
| London Harlington Timeseries Graph |
76 (3 Low) | 45 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *2 | 16/08/2026 22:00:00 |
| London Hillingdon Timeseries Graph |
71 (3 Low) | 41 (1 Low) | n/m | 7 (1 Low) | 33 (2 Low) *2 | 17/08/2026 03:00:00 |
| London Honor Oak Park Timeseries Graph |
93 (3 Low) | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 17/08/2026 04:00:00 |
| London Marylebone Road Timeseries Graph |
67 (3 Low) | 43 (1 Low) | 3 (1 Low) | 9 (1 Low) | 19 (2 Low) *1 | 16/08/2026 22:15:00 |
| London N. Kensington Timeseries Graph |
81 (3 Low) | 7 (1 Low) | 2 (1 Low) | 5 (1 Low) | 12 (1 Low) *2 | 16/08/2026 20:15:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 04:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 14 (1 Low) *2 | 17/08/2026 03:00:00 |
| London Westminster Timeseries Graph |
79 (3 Low) | 15 (1 Low) | n/m | n/m | n/m | 16/08/2026 20:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 26 (1 Low) | n/m | n/m | 17 (2 Low) *1 | 17/08/2026 06:00:00 |
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 |
54 (2 Low) | 8 (1 Low) | n/m | n/m | n/m | 16/08/2026 18:00:00 |
| Inverness Timeseries Graph |
n/m | 12 (1 Low) | n/m | 1 (1 Low) | 3 (1 Low) *2 | 17/08/2026 03:00:00 |
| Lerwick Timeseries Graph |
59 (2 Low) | n/m | n/m | n/m | n/m | 17/08/2026 06:00:00 |
| Strathvaich Timeseries Graph |
64 (2 Low) | n/m | n/m | n/m | n/m | 16/08/2026 19:00:00 |
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 | 3 (1 Low) | 5 (1 Low) *2 | 17/08/2026 06:00:00 |
| Hartlepool St Abbs Walk Timeseries Graph |
59 (2 Low) | 10 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 17/08/2026 06:00:00 |
| Kielder Water Timeseries Graph |
58 (2 Low) | n/m | n/m | 2 (1 Low) | 3 (1 Low) *2 | 17/08/2026 06:00:00 |
| Middlesbrough Timeseries Graph |
59 (2 Low) | 9 (1 Low) | 1 (1 Low) | 2 (1 Low) | 7 (1 Low) *1 | 17/08/2026 02:30:00 |
| Newcastle Centre Timeseries Graph |
60 (2 Low) | 20 (1 Low) | n/m | n/a | n/a | 12/08/2026 08:00:00 |
| 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) | 5 (1 Low) *2 | 17/08/2026 06:00:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 7 (1 Low) *2 | 17/08/2026 06:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 8 (1 Low) | n/m | 4 (1 Low) | n/m | 17/08/2026 02:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/a | 7 (1 Low) *1 | 15/08/2026 11:00:00 |
| Sunderland Silksworth Timeseries Graph |
60 (2 Low) | 19 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 17/08/2026 06:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 18 (1 Low) | n/m | 3 (1 Low) | n/m | 17/08/2026 06:00:00 |
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 |
39 (2 Low) | 20 (1 Low) | n/m | 2 (1 Low) | 4 (1 Low) *2 | 17/08/2026 06:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 31 (1 Low) | n/m | n/m | n/m | 17/08/2026 01:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/m | n/m | 17/08/2026 02:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 16 (1 Low) | n/m | n/m | n/m | 17/08/2026 02:00:00 |
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 |
77 (3 Low) | 3 (1 Low) | n/m | n/m | n/m | 16/08/2026 19:00:00 |
| Wrexham Timeseries Graph |
n/m | 18 (1 Low) | 4 (1 Low) | 3 (1 Low) | 6 (1 Low) *2 | 16/08/2026 21:00:00 |
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 | 6 (1 Low) | n/m | 3 (1 Low) | n/m | 17/08/2026 06:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 18 (1 Low) | n/m | n/m | n/m | 16/08/2026 08:00:00 |
| Blackburn Audley Park Timeseries Graph |
67 (3 Low) | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 17/08/2026 06:00:00 |
| Blackpool Marton Timeseries Graph |
73 (3 Low) | 11 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 17/08/2026 06:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 17/08/2026 06:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 27 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 16/08/2026 07:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 10 (1 Low) | n/m | 6 (1 Low) | 5 (1 Low) *1 | 17/08/2026 03:00:00 |
| Crewe Coppenhall Timeseries Graph |
77 (3 Low) | 21 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 17/08/2026 01:00:00 |
| Glazebury Timeseries Graph |
71 (3 Low) | 17 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 17/08/2026 01:00:00 |
| Liverpool Speke Timeseries Graph |
71 (3 Low) | 23 (1 Low) | 24 (1 Low) | 5 (1 Low) | 11 (1 Low) *1 | 17/08/2026 03:30:00 |
| Liverpool Thirlmere Park Timeseries Graph |
65 (2 Low) | n/m | n/m | 2 (1 Low) | 5 (1 Low) *2 | 16/08/2026 07:00:00 |
| Manchester Piccadilly Timeseries Graph |
63 (2 Low) | 28 (1 Low) | 4 (1 Low) | 6 (1 Low) | 9 (1 Low) *2 | 16/08/2026 13:15:00 |
| Manchester Sharston Timeseries Graph |
71 (3 Low) | 32 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 17/08/2026 03:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 17/08/2026 01:00:00 |
| Preston Timeseries Graph |
66 (2 Low) | 13 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 17/08/2026 06:00:00 |
| Rochdale Belfield Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 17/08/2026 01:00:00 |
| Salford Eccles Timeseries Graph |
77 (3 Low) | 21 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 17/08/2026 01:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 23 (1 Low) | n/m | n/m | n/m | 16/08/2026 12:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | n/a | n/m | n/m | 9 (1 Low) *1 | 05/08/2026 18:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | n/m | 17/08/2026 01:00:00 |
| Warrington Timeseries Graph |
n/m | n/a | n/m | 1 (1 Low) | 8 (1 Low) *1 | 17/08/2026 06:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/m | n/m | 16/08/2026 08:00:00 |
| Wigan Centre Timeseries Graph |
68 (3 Low) | 21 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 17/08/2026 01:00:00 |
| Wirral Tranmere Timeseries Graph |
72 (3 Low) | 7 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 17/08/2026 06:00:00 |
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 | 32 (1 Low) | n/m | n/m | 7 (1 Low) *1 | 16/08/2026 21:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | n/m | 16/08/2026 20:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 13 (1 Low) | 6 (1 Low) | n/m | n/m | 17/08/2026 02:30:00 |
| Belfast Centre Timeseries Graph |
52 (2 Low) | 31 (1 Low) | 2 (1 Low) | 5 (1 Low) | 7 (1 Low) *2 | 17/08/2026 02:30:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 52 (1 Low) | n/m | n/m | 10 (1 Low) *1 | 16/08/2026 15:00:00 |
| Derry Rosemount Timeseries Graph |
49 (2 Low) | 7 (1 Low) | 2 (1 Low) | n/a | n/a | 17/08/2026 02:30:00 |
| Lough Navar Timeseries Graph |
42 (2 Low) | n/m | n/m | 1 (1 Low) | 3 (1 Low) *2 | 17/08/2026 01:00:00 |
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 | 12 (1 Low) | n/m | n/m | n/m | 16/08/2026 16:00:00 |
| Eskdalemuir Timeseries Graph |
55 (2 Low) | 1 (1 Low) | n/m | n/m | n/m | 16/08/2026 18:00:00 |
| Peebles Timeseries Graph |
55 (2 Low) | 5 (1 Low) | n/m | n/m | n/m | 16/08/2026 18:00:00 |
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 | 17/08/2026 02:00:00 |
| Brighton Preston Park Timeseries Graph |
64 (2 Low) | 14 (1 Low) | n/m | 11 (1 Low) | 29 (2 Low) *2 | 17/08/2026 06:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 22 (1 Low) | n/m | 3 (1 Low) | 14 (1 Low) *1 | 17/08/2026 02:00:00 |
| Chilbolton Observatory Timeseries Graph |
92 (3 Low) | 7 (1 Low) | 1 (1 Low) | 5 (1 Low) | 12 (1 Low) *2 | 17/08/2026 06:00:00 |
| Eastbourne Timeseries Graph |
76 (3 Low) | 9 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 17/08/2026 06:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 01:00:00 |
| Horley Timeseries Graph |
n/m | 31 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 17/08/2026 04:00:00 |
| Lullington Heath Timeseries Graph |
84 (3 Low) | 9 (1 Low) | 1 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 17/08/2026 02:30:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 16 (1 Low) *2 | 17/08/2026 06:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
85 (3 Low) | n/m | n/m | 5 (1 Low) | 13 (1 Low) *2 | 17/08/2026 06:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 29 (1 Low) | n/m | n/m | n/m | 16/08/2026 22:00:00 |
| Oxford St Ebbes Timeseries Graph |
84 (3 Low) | 25 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 17/08/2026 01:00:00 |
| Portsmouth Timeseries Graph |
68 (3 Low) | 13 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 17/08/2026 01:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 26 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 17/08/2026 01:00:00 |
| Reading London Road Timeseries Graph |
n/m | 20 (1 Low) | n/m | n/m | 19 (2 Low) *1 | 16/08/2026 22:00:00 |
| Reading New Town Timeseries Graph |
78 (3 Low) | 14 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 03:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 17/08/2026 03:00:00 |
| Rochester Stoke Timeseries Graph |
87 (3 Low) | 22 (1 Low) | 1 (1 Low) | 5 (1 Low) | 10 (1 Low) *2 | 16/08/2026 14:30:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 03:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 42 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 01:00:00 |
| Southampton Centre Timeseries Graph |
66 (2 Low) | 22 (1 Low) | 5 (1 Low) | 6 (1 Low) | 13 (1 Low) *2 | 17/08/2026 05:45:00 |
| Storrington Roadside Timeseries Graph |
n/m | 17 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 04:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 25 (1 Low) | n/m | 8 (1 Low) | n/m | 17/08/2026 06:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 17/08/2026 03:00:00 |
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 |
28 (1 Low) | 15 (1 Low) | 2 (1 Low) | 8 (1 Low) | 11 (1 Low) *1 | 16/08/2026 12:00:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 18 (1 Low) | n/m | n/m | 15 (1 Low) *1 | 16/08/2026 13:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 33 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *1 | 17/08/2026 06:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
92 (3 Low) | 5 (1 Low) | n/m | n/m | n/m | 16/08/2026 20:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 16/08/2026 17:00:00 |
| Narberth Timeseries Graph |
71 (3 Low) | 3 (1 Low) | 2 (1 Low) | 3 (1 Low) | 7 (1 Low) *2 | 16/08/2026 17:30:00 |
| Newport Timeseries Graph |
n/m | 7 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 06:00:00 |
| Port Talbot Margam Timeseries Graph |
78 (3 Low) | 10 (1 Low) | 3 (1 Low) | 26 (3 Low) | 30 (2 Low) *3 | 16/08/2026 10:15:00 |
| Swansea Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | 13 (2 Low) | 13 (1 Low) *1 | 17/08/2026 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) | 8 (1 Low) *2 | 17/08/2026 01:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 31 (1 Low) | n/m | n/m | n/m | 16/08/2026 17:00:00 |
| Bournemouth Timeseries Graph |
72 (3 Low) | 10 (1 Low) | n/m | 7 (1 Low) | n/m | 17/08/2026 01:00:00 |
| Bournemouth Bourne Valley Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 01:00:00 |
| Bridgwater A372 Westonzoyland Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 17/08/2026 01:00:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 17/08/2026 06:00:00 |
| Bristol St Paul's Timeseries Graph |
80 (3 Low) | 12 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *1 | 17/08/2026 06:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 24 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 17/08/2026 06:00:00 |
| Charlton Mackrell Timeseries Graph |
85 (3 Low) | 6 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 17/08/2026 01:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 17/08/2026 01:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 19 (1 Low) | n/m | 4 (1 Low) | n/m | 17/08/2026 01:00:00 |
| Exeter Roadside Timeseries Graph |
65 (2 Low) | 18 (1 Low) | n/m | n/m | n/m | 16/08/2026 19:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 10 (1 Low) *2 | 17/08/2026 04:00:00 |
| Honiton Timeseries Graph |
82 (3 Low) | 7 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 01:00:00 |
| Plymouth Centre Timeseries Graph |
63 (2 Low) | 8 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 17/08/2026 01:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/m | n/m | 16/08/2026 16:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 1 (1 Low) | 10 (1 Low) *1 | 17/08/2026 05:00:00 |
| Swindon Walcot Timeseries Graph |
86 (3 Low) | 9 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 06:00:00 |
| Yarner Wood Timeseries Graph |
n/a | n/a | n/m | n/a | n/a | 14/08/2026 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 |
70 (3 Low) | n/m | n/m | n/m | n/m | 16/08/2026 05:00:00 |
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) | 9 (1 Low) *2 | 17/08/2026 01:00:00 |
| Birmingham A4540 Roadside Timeseries Graph |
67 (3 Low) | 33 (1 Low) | n/m | 5 (1 Low) | 13 (1 Low) *2 | 17/08/2026 06:00:00 |
| Birmingham Hall Green Timeseries Graph |
89 (3 Low) | 24 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 17/08/2026 01:00:00 |
| Birmingham Ladywood Timeseries Graph |
76 (3 Low) | 17 (1 Low) | 4 (1 Low) | 4 (1 Low) | 9 (1 Low) *2 | 16/08/2026 11:45:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 8 (1 Low) *2 | 17/08/2026 01:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
83 (3 Low) | 13 (1 Low) | n/m | 3 (1 Low) | 8 (1 Low) *2 | 17/08/2026 06:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 15 (1 Low) | n/m | 3 (1 Low) | n/m | 17/08/2026 01:00:00 |
| Coventry Allesley Timeseries Graph |
83 (3 Low) | 13 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 17/08/2026 01:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 39 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 17/08/2026 01:00:00 |
| Leamington Spa Timeseries Graph |
90 (3 Low) | 12 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 01:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 13 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 17/08/2026 01:00:00 |
| Leominster Timeseries Graph |
83 (3 Low) | 6 (1 Low) | n/m | n/m | n/m | 16/08/2026 20:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 27 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 17/08/2026 01:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 7 (1 Low) *2 | 17/08/2026 01:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 46 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 17/08/2026 06:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
71 (3 Low) | 21 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 17/08/2026 01:00:00 |
| Telford Hollinswood Timeseries Graph |
91 (3 Low) | 16 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 17/08/2026 01:00:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 17/08/2026 01:00:00 |
| Walsall Woodlands Timeseries Graph |
87 (3 Low) | 9 (1 Low) | n/m | n/m | n/m | 16/08/2026 21:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
76 (3 Low) | 15 (1 Low) | n/m | n/m | n/m | 16/08/2026 22:00:00 |
| Wolverhampton East Park Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 17/08/2026 01:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 17/08/2026 01:00:00 |
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 |
87 (3 Low) | 13 (1 Low) | 1 (1 Low) | n/a | n/a | 16/08/2026 16:00:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 35 (1 Low) | n/m | n/m | n/m | 16/08/2026 24:00: |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 17/08/2026 06:00:00 |
| Bradford West Park Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 06:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
74 (3 Low) | 12 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 17/08/2026 06:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 31 (1 Low) | n/m | 4 (1 Low) | n/m | 17/08/2026 06:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 17/08/2026 06:00:00 |
| High Muffles Timeseries Graph |
57 (2 Low) | 3 (1 Low) | n/m | 2 (1 Low) | 4 (1 Low) *2 | 17/08/2026 06:00:00 |
| Hull Freetown Timeseries Graph |
66 (2 Low) | 16 (1 Low) | 1 (1 Low) | 3 (1 Low) | 8 (1 Low) *2 | 16/08/2026 20:45:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 21 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 17/08/2026 03:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
66 (2 Low) | 10 (1 Low) | n/m | 3 (1 Low) | 8 (1 Low) *2 | 17/08/2026 03:00:00 |
| Leeds Centre Timeseries Graph |
69 (3 Low) | 18 (1 Low) | 2 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 16/08/2026 20:00:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | n/a | n/m | n/a | n/a | 14/08/2026 01:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 17/08/2026 06:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 15 (1 Low) | 2 (1 Low) | 5 (1 Low) | 9 (1 Low) *1 | 16/08/2026 14:30:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 41 (1 Low) | n/m | 6 (1 Low) | n/m | 17/08/2026 06:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
78 (3 Low) | 12 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 17/08/2026 06:00:00 |
| Sheffield Tinsley Timeseries Graph |
70 (3 Low) | 18 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 17/08/2026 06:00:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 17/08/2026 06:00:00 |
| York Bootham Timeseries Graph |
58 (2 Low) | 14 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *1 | 17/08/2026 06:00:00 |
| York Fishergate Timeseries Graph |
n/m | 22 (1 Low) | n/m | 3 (1 Low) | 11 (1 Low) *1 | 17/08/2026 02:00:00 |
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