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 3am Mon 4th May 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 |
81 (3 Low) | n/m | n/m | 5 (1 Low) | 7 (1 Low) *2 | 04/05/2026 04:00:00 |
| Bush Estate Timeseries Graph |
97 (3 Low) | 6 (1 Low) | n/m | n/m | n/m | 03/05/2026 08:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 11 (1 Low) | n/m | n/m | n/m | 03/05/2026 12:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 03/05/2026 24:00: |
| Edinburgh St Leonards Timeseries Graph |
97 (3 Low) | 20 (1 Low) | 2 (1 Low) | 7 (1 Low) | 13 (1 Low) *2 | 03/05/2026 07:15:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 35 (1 Low) | n/m | n/m | n/m | 03/05/2026 24:00: |
| Glasgow High Street Timeseries Graph |
n/m | 15 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 04/05/2026 04:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 74 (2 Low) | n/m | n/m | n/m | 03/05/2026 13:00:00 |
| Glasgow Townhead Timeseries Graph |
91 (3 Low) | 16 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 04/05/2026 04:00:00 |
| Grangemouth Timeseries Graph |
n/m | 11 (1 Low) | 3 (1 Low) | 5 (1 Low) | 11 (1 Low) *1 | 03/05/2026 08:45:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 11 (1 Low) | n/m | n/m | n/m | 04/05/2026 02:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 36 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 04/05/2026 01:00:00 |
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 |
70 (3 Low) | 11 (1 Low) | n/m | 8 (1 Low) | 10 (1 Low) *2 | 04/05/2026 01:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 10 (1 Low) | n/m | 9 (1 Low) | 11 (1 Low) *2 | 04/05/2026 01:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 35 (1 Low) | n/m | 10 (1 Low) | n/m | 04/05/2026 01:00:00 |
| Derby Stockbrook Park Timeseries Graph |
68 (3 Low) | n/m | n/m | 8 (1 Low) | 10 (1 Low) *2 | 04/05/2026 01:00:00 |
| Ladybower Timeseries Graph |
91 (3 Low) | 5 (1 Low) | 1 (1 Low) | 3 (1 Low) | 3 (1 Low) *2 | 03/05/2026 19:30:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 36 (1 Low) | n/m | 10 (1 Low) | 14 (1 Low) *2 | 04/05/2026 03:00:00 |
| Leicester University Timeseries Graph |
76 (3 Low) | 23 (1 Low) | n/m | 10 (1 Low) | 12 (1 Low) *2 | 04/05/2026 04:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 58 (1 Low) | n/m | n/m | n/m | 03/05/2026 16:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 12 (1 Low) *2 | 04/05/2026 03:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 14 (1 Low) *2 | 04/05/2026 01:00:00 |
| Northampton Spring Park Timeseries Graph |
88 (3 Low) | 10 (1 Low) | n/m | 13 (2 Low) | n/m | 04/05/2026 04:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 12 (1 Low) *2 | 04/05/2026 01:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
72 (3 Low) | 15 (1 Low) | 1 (1 Low) | 11 (1 Low) | 14 (1 Low) *2 | 03/05/2026 03:15:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 26 (1 Low) | n/m | 10 (1 Low) | 13 (1 Low) *2 | 04/05/2026 01:00:00 |
| Tallington Timeseries Graph |
86 (3 Low) | n/m | n/m | 12 (2 Low) | 15 (1 Low) *2 | 04/05/2026 01:00:00 |
| Toft Newton Timeseries Graph |
92 (3 Low) | 9 (1 Low) | n/m | 15 (2 Low) | 18 (2 Low) *2 | 04/05/2026 01:00:00 |
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 | 23 (1 Low) | n/m | 9 (1 Low) | 12 (1 Low) *2 | 04/05/2026 02:00:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 15 (1 Low) *2 | 04/05/2026 03:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 30 (1 Low) | n/m | n/m | n/m | 03/05/2026 22:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 63 (1 Low) | n/m | 11 (1 Low) | n/m | 04/05/2026 03:00:00 |
| Norwich Lakenfields Timeseries Graph |
86 (3 Low) | 16 (1 Low) | n/m | 15 (2 Low) | 18 (2 Low) *2 | 04/05/2026 04:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 15 (1 Low) *2 | 04/05/2026 01:00:00 |
| Sibton Timeseries Graph |
90 (3 Low) | n/m | n/m | 14 (2 Low) | 17 (2 Low) *2 | 04/05/2026 01:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 16 (1 Low) *2 | 04/05/2026 01:00:00 |
| Southend-on-Sea Timeseries Graph |
84 (3 Low) | 15 (1 Low) | n/m | 13 (2 Low) | 17 (2 Low) *2 | 04/05/2026 01:00:00 |
| St Osyth Timeseries Graph |
83 (3 Low) | 17 (1 Low) | n/m | 15 (2 Low) | 20 (2 Low) *2 | 04/05/2026 01:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 20 (1 Low) | n/m | 15 (2 Low) | 14 (1 Low) *1 | 04/05/2026 01:00:00 |
| Stevenage St Georges Way South Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | n/m | 04/05/2026 03:00:00 |
| Thurrock Timeseries Graph |
n/a | n/a | 3 (1 Low) | 11 (1 Low) | 16 (1 Low) *2 | 03/05/2026 22:30:00 |
| Weybourne Timeseries Graph |
83 (3 Low) | n/m | n/m | 18 (2 Low) | 22 (2 Low) *2 | 04/05/2026 01:00:00 |
| Wicken Fen Timeseries Graph |
79 (3 Low) | 7 (1 Low) | 2 (1 Low) | 12 (2 Low) | 15 (1 Low) *2 | 04/05/2026 03:45:00 |
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 | 38 (1 Low) | n/m | 12 (2 Low) | 14 (1 Low) *1 | 04/05/2026 04:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 17 (2 Low) *1 | 04/05/2026 01:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | n/m | n/m | 04/05/2026 01:00:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | n/m | 04/05/2026 03:00:00 |
| London Bexley Timeseries Graph |
n/m | 14 (1 Low) | n/m | 9 (1 Low) | 12 (1 Low) *2 | 04/05/2026 01:00:00 |
| London Bloomsbury Timeseries Graph |
86 (3 Low) | 15 (1 Low) | 2 (1 Low) | 8 (1 Low) | 11 (1 Low) *2 | 03/05/2026 19:00:00 |
| London Farringdon Street Timeseries Graph |
n/m | 30 (1 Low) | n/m | 10 (1 Low) | n/m | 04/05/2026 01:00:00 |
| London Haringey Priory Park South Timeseries Graph |
84 (3 Low) | 20 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) *2 | 04/05/2026 03:00:00 |
| London Harlington Timeseries Graph |
88 (3 Low) | 36 (1 Low) | n/m | 11 (1 Low) | 16 (1 Low) *2 | 03/05/2026 03:00:00 |
| London Hillingdon Timeseries Graph |
71 (3 Low) | 50 (1 Low) | n/m | 10 (1 Low) | 14 (1 Low) *2 | 04/05/2026 01:00:00 |
| London Honor Oak Park Timeseries Graph |
102 (4 Moderate) | n/m | n/m | 9 (1 Low) | 12 (1 Low) *2 | 04/05/2026 01:00:00 |
| London Marylebone Road Timeseries Graph |
69 (3 Low) | 37 (1 Low) | 5 (1 Low) | n/a | n/a | 03/05/2026 18:15:00 |
| London N. Kensington Timeseries Graph |
87 (3 Low) | 18 (1 Low) | 3 (1 Low) | 8 (1 Low) | 11 (1 Low) *2 | 03/05/2026 13:45:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 13 (1 Low) *2 | 04/05/2026 01:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | n/a | n/a | 27/04/2026 05:00:00 |
| London Westminster Timeseries Graph |
82 (3 Low) | 12 (1 Low) | n/m | n/m | n/m | 03/05/2026 20:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 5 (1 Low) | n/m | n/m | 15 (1 Low) *1 | 03/05/2026 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 |
68 (3 Low) | 11 (1 Low) | n/m | n/m | n/m | 03/05/2026 05:00:00 |
| Inverness Timeseries Graph |
n/m | 9 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 04/05/2026 01:00:00 |
| Lerwick Timeseries Graph |
98 (3 Low) | n/m | n/m | n/m | n/m | 03/05/2026 21:00:00 |
| Strathvaich Timeseries Graph |
97 (3 Low) | n/m | n/m | n/m | n/m | 03/05/2026 22:00:00 |
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 | 5 (1 Low) | 6 (1 Low) *2 | 04/05/2026 01:00:00 |
| Hartlepool St Abbs Walk Timeseries Graph |
106 (4 Moderate) | 11 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) *2 | 04/05/2026 01:00:00 |
| Kielder Water Timeseries Graph |
82 (3 Low) | n/m | n/m | 3 (1 Low) | 4 (1 Low) *2 | 04/05/2026 01:00:00 |
| Middlesbrough Timeseries Graph |
87 (3 Low) | 17 (1 Low) | 2 (1 Low) | 7 (1 Low) | 11 (1 Low) *1 | 03/05/2026 05:30:00 |
| Newcastle Centre Timeseries Graph |
75 (3 Low) | 18 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *1 | 04/05/2026 03:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 20 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 04/05/2026 03:00:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 13 (1 Low) *2 | 04/05/2026 01:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | 8 (1 Low) | n/m | 04/05/2026 01:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 19 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) *1 | 04/05/2026 01:00:00 |
| Sunderland Silksworth Timeseries Graph |
99 (3 Low) | 15 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *2 | 04/05/2026 01:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 7 (1 Low) | n/m | 6 (1 Low) | n/m | 04/05/2026 01:00:00 |
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 |
87 (3 Low) | 18 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 04/05/2026 04:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 38 (1 Low) | n/m | n/m | n/m | 03/05/2026 05:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/m | n/m | 03/05/2026 12:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 9 (1 Low) | n/m | n/m | n/m | 03/05/2026 12:00:00 |
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 |
86 (3 Low) | 7 (1 Low) | n/m | n/m | n/m | 03/05/2026 18:00:00 |
| Wrexham Timeseries Graph |
n/m | 22 (1 Low) | 5 (1 Low) | 6 (1 Low) | 8 (1 Low) *2 | 03/05/2026 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 | 17 (1 Low) | n/m | 5 (1 Low) | n/m | 04/05/2026 01:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/m | n/m | 03/05/2026 17:00:00 |
| Blackburn Audley Park Timeseries Graph |
79 (3 Low) | n/m | n/m | 3 (1 Low) | 4 (1 Low) *2 | 04/05/2026 01:00:00 |
| Blackpool Marton Timeseries Graph |
82 (3 Low) | 4 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 04/05/2026 01:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | n/m | 04/05/2026 01:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 12 (1 Low) | n/m | n/m | 8 (1 Low) *1 | 03/05/2026 20:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 15 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *1 | 04/05/2026 01:00:00 |
| Crewe Coppenhall Timeseries Graph |
71 (3 Low) | 11 (1 Low) | n/m | 7 (1 Low) | 9 (1 Low) *2 | 04/05/2026 01:00:00 |
| Glazebury Timeseries Graph |
65 (2 Low) | 10 (1 Low) | n/m | 4 (1 Low) | 5 (1 Low) *2 | 04/05/2026 01:00:00 |
| Liverpool Speke Timeseries Graph |
78 (3 Low) | 20 (1 Low) | 3 (1 Low) | 8 (1 Low) | 11 (1 Low) *1 | 03/05/2026 15:15:00 |
| Liverpool Thirlmere Park Timeseries Graph |
78 (3 Low) | n/m | n/m | 5 (1 Low) | 6 (1 Low) *2 | 04/05/2026 01:00:00 |
| Manchester Piccadilly Timeseries Graph |
68 (3 Low) | 18 (1 Low) | 2 (1 Low) | 8 (1 Low) | 10 (1 Low) *2 | 03/05/2026 16:45:00 |
| Manchester Sharston Timeseries Graph |
74 (3 Low) | 9 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 04/05/2026 01:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 04/05/2026 01:00:00 |
| Preston Timeseries Graph |
80 (3 Low) | 14 (1 Low) | n/m | 4 (1 Low) | 5 (1 Low) *2 | 04/05/2026 01:00:00 |
| Salford Eccles Timeseries Graph |
84 (3 Low) | 15 (1 Low) | n/m | 5 (1 Low) | 7 (1 Low) *2 | 04/05/2026 01:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 14 (1 Low) | n/m | n/m | n/m | 03/05/2026 18:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/m | 6 (1 Low) *1 | 03/05/2026 11:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 04/05/2026 01:00:00 |
| Warrington Timeseries Graph |
n/m | 15 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *1 | 04/05/2026 01:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 03/05/2026 14:00:00 |
| Wigan Centre Timeseries Graph |
87 (3 Low) | n/a | n/m | 4 (1 Low) | 6 (1 Low) *2 | 04/05/2026 01:00:00 |
| Wirral Tranmere Timeseries Graph |
77 (3 Low) | 13 (1 Low) | n/m | 5 (1 Low) | 7 (1 Low) *2 | 04/05/2026 01:00:00 |
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 | 16 (1 Low) | n/m | n/m | 17 (2 Low) *1 | 03/05/2026 16:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/m | n/m | 03/05/2026 22:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 14 (1 Low) | 2 (1 Low) | n/m | n/m | 03/05/2026 07:15:00 |
| Belfast Centre Timeseries Graph |
68 (3 Low) | 39 (1 Low) | 1 (1 Low) | 9 (1 Low) | 13 (1 Low) *2 | 04/05/2026 01:00:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 42 (1 Low) | n/m | n/m | 17 (2 Low) *1 | 04/05/2026 02:00:00 |
| Derry Rosemount Timeseries Graph |
75 (3 Low) | 10 (1 Low) | 3 (1 Low) | n/a | n/a | 03/05/2026 23:15:00 |
| Lough Navar Timeseries Graph |
72 (3 Low) | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 04/05/2026 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 | 20 (1 Low) | n/m | n/m | n/m | 03/05/2026 16:00:00 |
| Eskdalemuir Timeseries Graph |
85 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 03/05/2026 11:00:00 |
| Peebles Timeseries Graph |
83 (3 Low) | 3 (1 Low) | n/m | n/m | n/m | 03/05/2026 11:00:00 |
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 | 8 (1 Low) | n/m | 04/05/2026 01:00:00 |
| Brighton Preston Park Timeseries Graph |
82 (3 Low) | 27 (1 Low) | n/m | 15 (2 Low) | 19 (2 Low) *2 | 04/05/2026 01:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 23 (1 Low) | n/m | 11 (1 Low) | 24 (2 Low) *1 | 04/05/2026 01:00:00 |
| Chilbolton Observatory Timeseries Graph |
91 (3 Low) | 7 (1 Low) | 2 (1 Low) | 10 (1 Low) | 12 (1 Low) *2 | 03/05/2026 07:15:00 |
| Eastbourne Timeseries Graph |
92 (3 Low) | 19 (1 Low) | n/m | 12 (2 Low) | 15 (1 Low) *2 | 04/05/2026 01:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 12 (1 Low) *2 | 04/05/2026 03:00:00 |
| Horley Timeseries Graph |
n/m | 23 (1 Low) | n/m | 13 (2 Low) | 17 (2 Low) *2 | 04/05/2026 01:00:00 |
| Lullington Heath Timeseries Graph |
95 (3 Low) | 24 (1 Low) | 105 (2 Low) | 13 (2 Low) | 16 (1 Low) *2 | 03/05/2026 18:45:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | 27 (2 Low) *2 | 04/05/2026 01:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
85 (3 Low) | n/m | n/m | 10 (1 Low) | 12 (1 Low) *2 | 04/05/2026 03:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 20 (1 Low) | n/m | n/m | n/m | 03/05/2026 21:00:00 |
| Oxford St Ebbes Timeseries Graph |
86 (3 Low) | 20 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *2 | 04/05/2026 04:00:00 |
| Portsmouth Timeseries Graph |
82 (3 Low) | 12 (1 Low) | n/m | 11 (1 Low) | 13 (1 Low) *2 | 04/05/2026 01:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 32 (1 Low) | n/m | 11 (1 Low) | 15 (1 Low) *2 | 04/05/2026 01:00:00 |
| Reading London Road Timeseries Graph |
n/m | 19 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 03/05/2026 20:00:00 |
| Reading New Town Timeseries Graph |
78 (3 Low) | 10 (1 Low) | n/m | 8 (1 Low) | 10 (1 Low) *2 | 04/05/2026 01:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | n/m | 04/05/2026 01:00:00 |
| Rochester Stoke Timeseries Graph |
84 (3 Low) | 26 (1 Low) | 1 (1 Low) | 13 (2 Low) | 16 (1 Low) *2 | 03/05/2026 23:30:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 14 (1 Low) *2 | 04/05/2026 01:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 38 (1 Low) | n/m | 9 (1 Low) | 12 (1 Low) *2 | 04/05/2026 01:00:00 |
| Southampton Centre Timeseries Graph |
79 (3 Low) | 25 (1 Low) | 5 (1 Low) | 12 (2 Low) | 15 (1 Low) *2 | 03/05/2026 24:45: |
| Storrington Roadside Timeseries Graph |
n/m | 18 (1 Low) | n/m | 15 (2 Low) | 19 (2 Low) *2 | 04/05/2026 01:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 20 (1 Low) | n/m | 15 (2 Low) | n/m | 04/05/2026 01:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 17 (2 Low) *2 | 04/05/2026 01:00:00 |
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 |
n/a | n/a | n/a | n/a | n/a | 30/04/2026 15:15:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 27 (1 Low) | n/m | n/m | 12 (1 Low) *1 | 03/05/2026 24:00: |
| Chepstow A48 Timeseries Graph |
n/m | 28 (1 Low) | n/m | 10 (1 Low) | 10 (1 Low) *1 | 04/05/2026 01:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
94 (3 Low) | 9 (1 Low) | n/m | n/m | n/m | 03/05/2026 18:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 03/05/2026 14:00:00 |
| Narberth Timeseries Graph |
71 (3 Low) | 3 (1 Low) | 2 (1 Low) | 8 (1 Low) | 10 (1 Low) *2 | 03/05/2026 21:15:00 |
| Newport Timeseries Graph |
n/m | 19 (1 Low) | n/m | 8 (1 Low) | 10 (1 Low) *2 | 04/05/2026 04:00:00 |
| Port Talbot Margam Timeseries Graph |
80 (3 Low) | 20 (1 Low) | 1 (1 Low) | 6 (1 Low) | 8 (1 Low) *3 | 03/05/2026 23:30:00 |
| Swansea Roadside Timeseries Graph |
n/m | 31 (1 Low) | n/m | 10 (1 Low) | 9 (1 Low) *1 | 04/05/2026 01:00:00 |
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 | 6 (1 Low) | 8 (1 Low) *2 | 04/05/2026 01:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 22/03/2026 17:00:00 |
| Bournemouth Timeseries Graph |
93 (3 Low) | 9 (1 Low) | n/m | 10 (1 Low) | n/m | 04/05/2026 01:00:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 12 (1 Low) *2 | 04/05/2026 03:00:00 |
| Bristol St Paul's Timeseries Graph |
81 (3 Low) | 25 (1 Low) | n/m | 9 (1 Low) | 19 (2 Low) *1 | 04/05/2026 01:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 32 (1 Low) | n/m | 9 (1 Low) | 12 (1 Low) *2 | 04/05/2026 03:00:00 |
| Charlton Mackrell Timeseries Graph |
78 (3 Low) | 9 (1 Low) | n/m | 9 (1 Low) | 11 (1 Low) *2 | 04/05/2026 03:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 04/05/2026 03:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 15 (1 Low) | n/m | 10 (1 Low) | n/m | 04/05/2026 01:00:00 |
| Exeter Roadside Timeseries Graph |
78 (3 Low) | 32 (1 Low) | n/m | n/m | n/m | 03/05/2026 20:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 12 (1 Low) *2 | 04/05/2026 03:00:00 |
| Honiton Timeseries Graph |
86 (3 Low) | 5 (1 Low) | n/m | 9 (1 Low) | 11 (1 Low) *2 | 04/05/2026 04:00:00 |
| Plymouth Centre Timeseries Graph |
77 (3 Low) | 20 (1 Low) | n/m | 10 (1 Low) | 13 (1 Low) *2 | 04/05/2026 03:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 11 (1 Low) | n/m | n/m | n/m | 03/05/2026 21:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 12 (1 Low) *1 | 04/05/2026 04:00:00 |
| Swindon Walcot Timeseries Graph |
90 (3 Low) | 9 (1 Low) | n/m | 7 (1 Low) | 9 (1 Low) *2 | 04/05/2026 01:00:00 |
| Yarner Wood Timeseries Graph |
78 (3 Low) | 8 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 04/05/2026 03:00:00 |
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 |
87 (3 Low) | n/m | n/m | n/m | n/m | 03/05/2026 16:00:00 |
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 |
| Birmingham A4540 Roadside Timeseries Graph |
77 (3 Low) | 24 (1 Low) | n/m | 10 (1 Low) | 13 (1 Low) *2 | 04/05/2026 03:00:00 |
| Birmingham Hall Green Timeseries Graph |
95 (3 Low) | 15 (1 Low) | n/m | 11 (1 Low) | 16 (1 Low) *2 | 03/05/2026 09:00:00 |
| Birmingham Ladywood Timeseries Graph |
n/a | 12 (1 Low) | 2 (1 Low) | 10 (1 Low) | 12 (1 Low) *2 | 03/05/2026 11:15:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 12 (1 Low) *2 | 04/05/2026 03:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
76 (3 Low) | 14 (1 Low) | n/m | 9 (1 Low) | 11 (1 Low) *2 | 04/05/2026 01:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 14 (1 Low) | n/m | 12 (2 Low) | n/m | 04/05/2026 02:00:00 |
| Coventry Allesley Timeseries Graph |
84 (3 Low) | 9 (1 Low) | n/m | 9 (1 Low) | 12 (1 Low) *2 | 04/05/2026 04:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 25 (1 Low) | n/m | 10 (1 Low) | 13 (1 Low) *2 | 04/05/2026 03:00:00 |
| Leamington Spa Timeseries Graph |
94 (3 Low) | 14 (1 Low) | n/m | 9 (1 Low) | 12 (1 Low) *2 | 04/05/2026 04:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 11 (1 Low) | n/m | 9 (1 Low) | 11 (1 Low) *2 | 04/05/2026 04:00:00 |
| Leominster Timeseries Graph |
85 (3 Low) | 7 (1 Low) | n/m | n/m | n/m | 03/05/2026 18:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 21 (1 Low) | n/m | 10 (1 Low) | 13 (1 Low) *2 | 04/05/2026 02:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 10 (1 Low) *2 | 04/05/2026 01:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 46 (1 Low) | n/m | 8 (1 Low) | 10 (1 Low) *2 | 04/05/2026 01:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
65 (2 Low) | 27 (1 Low) | n/m | 6 (1 Low) | 8 (1 Low) *2 | 04/05/2026 01:00:00 |
| Telford Hollinswood Timeseries Graph |
87 (3 Low) | 15 (1 Low) | n/m | 10 (1 Low) | 12 (1 Low) *2 | 04/05/2026 03:00:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 14 (1 Low) *2 | 04/05/2026 02:00:00 |
| Walsall Woodlands Timeseries Graph |
82 (3 Low) | 11 (1 Low) | n/m | n/m | n/m | 03/05/2026 19:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
82 (3 Low) | 13 (1 Low) | n/m | n/m | n/m | 03/05/2026 19:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 11 (1 Low) *2 | 04/05/2026 03:00:00 |
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 |
76 (3 Low) | 6 (1 Low) | 1 (1 Low) | 7 (1 Low) | 8 (1 Low) *2 | 03/05/2026 09:00:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 61 (1 Low) | n/m | n/m | n/m | 03/05/2026 15:00:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 7 (1 Low) *2 | 04/05/2026 01:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
75 (3 Low) | 13 (1 Low) | n/m | 6 (1 Low) | 7 (1 Low) *2 | 04/05/2026 01:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 26 (1 Low) | n/m | 16 (2 Low) | n/m | 04/05/2026 01:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 7 (1 Low) *2 | 04/05/2026 01:00:00 |
| High Muffles Timeseries Graph |
82 (3 Low) | 4 (1 Low) | n/m | 5 (1 Low) | 5 (1 Low) *2 | 04/05/2026 01:00:00 |
| Hull Freetown Timeseries Graph |
81 (3 Low) | 9 (1 Low) | 1 (1 Low) | 17 (2 Low) | 22 (2 Low) *2 | 03/05/2026 07:30:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 18 (1 Low) | n/m | 14 (2 Low) | 18 (2 Low) *2 | 04/05/2026 01:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
95 (3 Low) | 27 (1 Low) | n/m | 15 (2 Low) | 18 (2 Low) *2 | 04/05/2026 01:00:00 |
| Leeds Centre Timeseries Graph |
86 (3 Low) | 10 (1 Low) | 3 (1 Low) | 6 (1 Low) | 7 (1 Low) *2 | 03/05/2026 09:15:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 24 (1 Low) | n/m | 11 (1 Low) | 10 (1 Low) *1 | 04/05/2026 01:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 17 (2 Low) *2 | 04/05/2026 01:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 13 (1 Low) | 2 (1 Low) | 15 (2 Low) | 21 (2 Low) *1 | 03/05/2026 10:15:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 40 (1 Low) | n/m | 11 (1 Low) | n/m | 04/05/2026 01:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
67 (3 Low) | 13 (1 Low) | n/m | 10 (1 Low) | 12 (1 Low) *2 | 04/05/2026 01:00:00 |
| Sheffield Tinsley Timeseries Graph |
68 (3 Low) | 10 (1 Low) | n/m | 11 (1 Low) | 13 (1 Low) *2 | 04/05/2026 01:00:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 9 (1 Low) *2 | 04/05/2026 01:00:00 |
| York Bootham Timeseries Graph |
69 (3 Low) | 20 (1 Low) | n/m | 11 (1 Low) | 14 (1 Low) *1 | 04/05/2026 01:00:00 |
| York Fishergate Timeseries Graph |
n/m | 25 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *1 | 04/05/2026 01:00:00 |
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