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 2pm Mon 25th 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 |
72 (3 Low) | n/m | n/m | 3 (1 Low) | 4 (1 Low) *2 | 25/05/2026 01:00:00 |
| Bush Estate Timeseries Graph |
78 (3 Low) | 3 (1 Low) | n/m | n/m | n/m | 25/05/2026 14:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 21 (1 Low) | n/m | n/m | n/m | 25/05/2026 07:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 53 (1 Low) | n/m | n/m | n/m | 25/05/2026 09:00:00 |
| Edinburgh St Leonards Timeseries Graph |
76 (3 Low) | 20 (1 Low) | 2 (1 Low) | 4 (1 Low) | 6 (1 Low) *2 | 24/05/2026 21:45:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 26 (1 Low) | n/m | n/m | n/m | 25/05/2026 04:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 44 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 25/05/2026 08:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 56 (1 Low) | n/m | n/m | n/m | 25/05/2026 08:00:00 |
| Glasgow Townhead Timeseries Graph |
83 (3 Low) | 41 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 25/05/2026 01:00:00 |
| Grangemouth Timeseries Graph |
n/m | 11 (1 Low) | 2 (1 Low) | 5 (1 Low) | 9 (1 Low) *1 | 25/05/2026 11:15:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 11 (1 Low) | n/m | n/m | n/m | 25/05/2026 07:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 28 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 25/05/2026 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 |
104 (4 Moderate) | 14 (1 Low) | n/m | 3 (1 Low) | 8 (1 Low) *2 | 25/05/2026 01:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 23 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 25/05/2026 01:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 59 (1 Low) | n/m | 4 (1 Low) | n/m | 25/05/2026 01:00:00 |
| Derby Stockbrook Park Timeseries Graph |
100 (3 Low) | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 25/05/2026 01:00:00 |
| Ladybower Timeseries Graph |
120 (4 Moderate) | 11 (1 Low) | 2 (1 Low) | 3 (1 Low) | 10 (1 Low) *2 | 25/05/2026 02:30:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 86 (2 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 25/05/2026 14:00:00 |
| Leicester University Timeseries Graph |
99 (3 Low) | 62 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 25/05/2026 14:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 12/05/2026 10:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 25/05/2026 14:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 11 (1 Low) *2 | 25/05/2026 14:00:00 |
| Northampton Spring Park Timeseries Graph |
91 (3 Low) | 27 (1 Low) | n/m | 8 (1 Low) | n/m | 25/05/2026 14:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 25/05/2026 14:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
107 (4 Moderate) | 33 (1 Low) | 2 (1 Low) | 5 (1 Low) | 11 (1 Low) *2 | 25/05/2026 08:30:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 45 (1 Low) | n/m | 7 (1 Low) | 15 (1 Low) *2 | 25/05/2026 14:00:00 |
| Tallington Timeseries Graph |
106 (4 Moderate) | n/m | n/m | 6 (1 Low) | 11 (1 Low) *2 | 25/05/2026 14:00:00 |
| Toft Newton Timeseries Graph |
113 (4 Moderate) | 14 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 25/05/2026 14:00:00 |
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 | 22 (1 Low) | n/m | 15 (2 Low) | 26 (2 Low) *2 | 25/05/2026 14:00:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 20 (2 Low) *2 | 25/05/2026 14:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 29 (1 Low) | n/m | n/m | n/m | 24/05/2026 18:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 55 (1 Low) | n/m | 14 (2 Low) | n/m | 25/05/2026 14:00:00 |
| Norwich Lakenfields Timeseries Graph |
99 (3 Low) | 15 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 25/05/2026 14:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 19 (2 Low) *2 | 25/05/2026 14:00:00 |
| Sibton Timeseries Graph |
90 (3 Low) | n/m | n/m | 6 (1 Low) | 9 (1 Low) *2 | 25/05/2026 06:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | 19 (2 Low) *2 | 25/05/2026 07:00:00 |
| Southend-on-Sea Timeseries Graph |
114 (4 Moderate) | 30 (1 Low) | n/m | 22 (2 Low) | 29 (2 Low) *2 | 25/05/2026 08:00:00 |
| St Osyth Timeseries Graph |
117 (4 Moderate) | 43 (1 Low) | n/m | 12 (2 Low) | 20 (2 Low) *2 | 25/05/2026 07:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | n/a | n/m | 27 (3 Low) | 28 (2 Low) *1 | 25/05/2026 08:00:00 |
| Stevenage St Georges Way South Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | n/m | 25/05/2026 14:00:00 |
| Thurrock Timeseries Graph |
n/a | n/a | 2 (1 Low) | 22 (2 Low) | 30 (2 Low) *2 | 25/05/2026 09:30:00 |
| Weybourne Timeseries Graph |
96 (3 Low) | n/m | n/m | 7 (1 Low) | 12 (1 Low) *2 | 25/05/2026 13:00:00 |
| Wicken Fen Timeseries Graph |
113 (4 Moderate) | 11 (1 Low) | n/a | 10 (1 Low) | 17 (2 Low) *2 | 24/05/2026 05:45:00 |
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 | 47 (1 Low) | n/m | 24 (3 Low) | 39 (3 Low) *1 | 25/05/2026 14:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 40 (3 Low) *1 | 25/05/2026 14:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 46 (1 Low) | n/m | n/m | n/m | 25/05/2026 02:00:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | n/m | 25/05/2026 10:00:00 |
| London Bexley Timeseries Graph |
n/m | 90 (2 Low) | n/m | 18 (2 Low) | 25 (2 Low) *2 | 25/05/2026 09:00:00 |
| London Bloomsbury Timeseries Graph |
124 (5 Moderate) | 56 (1 Low) | 2 (1 Low) | 17 (2 Low) | 27 (2 Low) *2 | 24/05/2026 20:15:00 |
| London Farringdon Street Timeseries Graph |
n/m | 69 (2 Low) | n/m | 22 (2 Low) | n/m | 25/05/2026 10:00:00 |
| London Haringey Priory Park South Timeseries Graph |
148 (6 Moderate) | 35 (1 Low) | n/m | 16 (2 Low) | 26 (2 Low) *2 | 25/05/2026 14:00:00 |
| London Harlington Timeseries Graph |
117 (4 Moderate) | 48 (1 Low) | n/m | 14 (2 Low) | 27 (2 Low) *2 | 25/05/2026 14:00:00 |
| London Hillingdon Timeseries Graph |
120 (4 Moderate) | 67 (1 Low) | n/m | 18 (2 Low) | 31 (2 Low) *2 | 25/05/2026 14:00:00 |
| London Honor Oak Park Timeseries Graph |
151 (6 Moderate) | n/m | n/m | 17 (2 Low) | 26 (2 Low) *2 | 25/05/2026 10:00:00 |
| London Marylebone Road Timeseries Graph |
115 (4 Moderate) | 63 (1 Low) | 5 (1 Low) | 21 (2 Low) | 39 (3 Low) *1 | 24/05/2026 19:45:00 |
| London N. Kensington Timeseries Graph |
140 (5 Moderate) | 50 (1 Low) | 3 (1 Low) | 17 (2 Low) | 27 (2 Low) *2 | 25/05/2026 09:00:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | 26 (2 Low) *2 | 25/05/2026 14:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 28 (2 Low) *2 | 25/05/2026 03:00:00 |
| London Westminster Timeseries Graph |
126 (5 Moderate) | 63 (1 Low) | n/m | n/m | n/m | 24/05/2026 20:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 65 (1 Low) | n/m | n/m | 43 (3 Low) *1 | 24/05/2026 24:00: |
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 |
55 (2 Low) | 24 (1 Low) | n/m | n/m | n/m | 24/05/2026 15:00:00 |
| Inverness Timeseries Graph |
n/m | 8 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 25/05/2026 01:00:00 |
| Lerwick Timeseries Graph |
79 (3 Low) | n/m | n/m | n/m | n/m | 24/05/2026 17:00:00 |
| Strathvaich Timeseries Graph |
83 (3 Low) | n/m | n/m | n/m | n/m | 24/05/2026 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) | 6 (1 Low) *2 | 25/05/2026 14:00:00 |
| Hartlepool St Abbs Walk Timeseries Graph |
89 (3 Low) | 10 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 25/05/2026 14:00:00 |
| Kielder Water Timeseries Graph |
76 (3 Low) | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 25/05/2026 01:00:00 |
| Middlesbrough Timeseries Graph |
88 (3 Low) | 10 (1 Low) | 2 (1 Low) | 3 (1 Low) | 8 (1 Low) *1 | 25/05/2026 10:30:00 |
| Newcastle Centre Timeseries Graph |
79 (3 Low) | 23 (1 Low) | n/m | 9 (1 Low) | 13 (1 Low) *1 | 25/05/2026 02:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 33 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 25/05/2026 04:00:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 10 (1 Low) *2 | 25/05/2026 14:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 14 (1 Low) | n/m | 4 (1 Low) | n/m | 25/05/2026 14:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/a | 7 (1 Low) *1 | 21/05/2026 08:00:00 |
| Sunderland Silksworth Timeseries Graph |
93 (3 Low) | 17 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 25/05/2026 05:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 47 (1 Low) | n/m | 4 (1 Low) | n/m | 25/05/2026 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 |
64 (2 Low) | 25 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 25/05/2026 01:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 42 (1 Low) | n/m | n/m | n/m | 25/05/2026 01:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 6 (1 Low) | n/m | n/m | n/m | 25/05/2026 08:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 30 (1 Low) | n/m | n/m | n/m | 25/05/2026 01:00:00 |
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 |
81 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 25/05/2026 06:00:00 |
| Wrexham Timeseries Graph |
n/m | 26 (1 Low) | 2 (1 Low) | 5 (1 Low) | 12 (1 Low) *2 | 25/05/2026 07:30:00 |
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 | 41 (1 Low) | n/m | 7 (1 Low) | n/m | 25/05/2026 14:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 32 (1 Low) | n/m | n/m | n/m | 24/05/2026 23:00:00 |
| Blackburn Audley Park Timeseries Graph |
85 (3 Low) | n/m | n/m | 5 (1 Low) | 11 (1 Low) *2 | 25/05/2026 14:00:00 |
| Blackpool Marton Timeseries Graph |
83 (3 Low) | 14 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 25/05/2026 01:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 25/05/2026 01:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 31 (1 Low) | n/m | n/m | 18 (2 Low) *1 | 24/05/2026 24:00: |
| Carlisle Morton A595 Timeseries Graph |
n/m | 14 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *1 | 25/05/2026 01:00:00 |
| Crewe Coppenhall Timeseries Graph |
89 (3 Low) | 17 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 25/05/2026 14:00:00 |
| Glazebury Timeseries Graph |
101 (4 Moderate) | 23 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 25/05/2026 14:00:00 |
| Liverpool Speke Timeseries Graph |
94 (3 Low) | 38 (1 Low) | 68 (1 Low) | 9 (1 Low) | 17 (2 Low) *1 | 25/05/2026 09:30:00 |
| Liverpool Thirlmere Park Timeseries Graph |
73 (3 Low) | n/m | n/m | 5 (1 Low) | 13 (1 Low) *2 | 25/05/2026 14:00:00 |
| Manchester Piccadilly Timeseries Graph |
93 (3 Low) | 63 (1 Low) | 5 (1 Low) | 8 (1 Low) | 16 (1 Low) *2 | 24/05/2026 17:15:00 |
| Manchester Sharston Timeseries Graph |
97 (3 Low) | 56 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 25/05/2026 02:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 25/05/2026 14:00:00 |
| Preston Timeseries Graph |
87 (3 Low) | 25 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 25/05/2026 01:00:00 |
| Salford Eccles Timeseries Graph |
117 (4 Moderate) | 38 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 25/05/2026 01:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 27 (1 Low) | n/m | n/m | n/m | 25/05/2026 12:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 46 (1 Low) | n/m | n/m | 14 (1 Low) *1 | 25/05/2026 01:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 25/05/2026 02:00:00 |
| Warrington Timeseries Graph |
n/m | 21 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *1 | 25/05/2026 14:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 34 (1 Low) | n/m | n/m | n/m | 25/05/2026 01:00:00 |
| Wigan Centre Timeseries Graph |
89 (3 Low) | 26 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 25/05/2026 14:00:00 |
| Wirral Tranmere Timeseries Graph |
85 (3 Low) | 32 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 25/05/2026 14:00:00 |
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 | 38 (1 Low) | n/m | n/m | 14 (1 Low) *1 | 25/05/2026 09:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 24/05/2026 21:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 28 (1 Low) | 3 (1 Low) | n/m | n/m | 25/05/2026 06:45:00 |
| Belfast Centre Timeseries Graph |
70 (3 Low) | 25 (1 Low) | 1 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 24/05/2026 15:45:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 50 (1 Low) | n/m | n/m | 15 (1 Low) *1 | 25/05/2026 07:00:00 |
| Derry Rosemount Timeseries Graph |
62 (2 Low) | 11 (1 Low) | 1 (1 Low) | 2 (1 Low) | 7 (1 Low) *1 | 25/05/2026 07:15:00 |
| Lough Navar Timeseries Graph |
60 (2 Low) | n/m | n/m | 3 (1 Low) | 4 (1 Low) *2 | 25/05/2026 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 | 24 (1 Low) | n/m | n/m | n/m | 25/05/2026 10:00:00 |
| Eskdalemuir Timeseries Graph |
74 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 24/05/2026 20:00:00 |
| Peebles Timeseries Graph |
74 (3 Low) | 8 (1 Low) | n/m | n/m | n/m | 24/05/2026 21:00:00 |
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 | 10 (1 Low) | n/m | 25/05/2026 14:00:00 |
| Brighton Preston Park Timeseries Graph |
n/a | 33 (1 Low) | n/m | 14 (2 Low) | 22 (2 Low) *2 | 25/05/2026 07:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 41 (1 Low) | n/m | 18 (2 Low) | 33 (2 Low) *1 | 25/05/2026 01:00:00 |
| Chilbolton Observatory Timeseries Graph |
114 (4 Moderate) | 18 (1 Low) | 3 (1 Low) | 11 (1 Low) | 30 (2 Low) *2 | 24/05/2026 19:45:00 |
| Eastbourne Timeseries Graph |
95 (3 Low) | 39 (1 Low) | n/m | 17 (2 Low) | 25 (2 Low) *2 | 25/05/2026 03:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 29 (2 Low) *2 | 25/05/2026 14:00:00 |
| Horley Timeseries Graph |
n/m | 33 (1 Low) | n/m | 15 (2 Low) | 30 (2 Low) *2 | 25/05/2026 07:00:00 |
| Lullington Heath Timeseries Graph |
121 (5 Moderate) | 19 (1 Low) | 2 (1 Low) | 12 (2 Low) | 19 (2 Low) *2 | 24/05/2026 11:15:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 23 (2 Low) | 35 (3 Low) *2 | 25/05/2026 01:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
98 (3 Low) | n/m | n/m | 9 (1 Low) | 19 (2 Low) *2 | 25/05/2026 14:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 60 (1 Low) | n/m | n/m | n/m | 24/05/2026 24:00: |
| Oxford St Ebbes Timeseries Graph |
97 (3 Low) | 44 (1 Low) | n/m | 6 (1 Low) | 17 (2 Low) *2 | 25/05/2026 14:00:00 |
| Portsmouth Timeseries Graph |
84 (3 Low) | 74 (2 Low) | n/m | 13 (2 Low) | 24 (2 Low) *2 | 25/05/2026 14:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 69 (2 Low) | n/m | 15 (2 Low) | 27 (2 Low) *2 | 25/05/2026 13:00:00 |
| Reading London Road Timeseries Graph |
n/m | 62 (1 Low) | n/m | n/m | 27 (2 Low) *1 | 24/05/2026 23:00:00 |
| Reading New Town Timeseries Graph |
106 (4 Moderate) | 46 (1 Low) | n/m | 12 (2 Low) | 25 (2 Low) *2 | 25/05/2026 14:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | n/m | 25/05/2026 14:00:00 |
| Rochester Stoke Timeseries Graph |
97 (3 Low) | 65 (1 Low) | 9 (1 Low) | 18 (2 Low) | 23 (2 Low) *2 | 24/05/2026 14:45:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 16 (2 Low) | 32 (2 Low) *2 | 25/05/2026 14:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 85 (2 Low) | n/m | 12 (2 Low) | 28 (2 Low) *2 | 25/05/2026 14:00:00 |
| Southampton Centre Timeseries Graph |
106 (4 Moderate) | 60 (1 Low) | 9 (1 Low) | 16 (2 Low) | 32 (2 Low) *2 | 24/05/2026 15:30:00 |
| Storrington Roadside Timeseries Graph |
n/m | 27 (1 Low) | n/m | 12 (2 Low) | 24 (2 Low) *2 | 25/05/2026 14:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 45 (1 Low) | n/m | 18 (2 Low) | n/m | 25/05/2026 10:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 28 (2 Low) *2 | 25/05/2026 07:00:00 |
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 |
81 (3 Low) | 49 (1 Low) | 7 (1 Low) | 14 (2 Low) | 25 (2 Low) *1 | 25/05/2026 10:45:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 43 (1 Low) | n/m | n/m | 25 (2 Low) *1 | 24/05/2026 23:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 35 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *1 | 25/05/2026 07:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
93 (3 Low) | 29 (1 Low) | n/m | n/m | n/m | 24/05/2026 20:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 44 (1 Low) | n/m | n/m | n/m | 24/05/2026 21:00:00 |
| Narberth Timeseries Graph |
88 (3 Low) | 12 (1 Low) | 3 (1 Low) | 6 (1 Low) | 20 (2 Low) *2 | 25/05/2026 11:30:00 |
| Newport Timeseries Graph |
n/m | 45 (1 Low) | n/m | 7 (1 Low) | 25 (2 Low) *2 | 25/05/2026 14:00:00 |
| Port Talbot Margam Timeseries Graph |
75 (3 Low) | 29 (1 Low) | 3 (1 Low) | 7 (1 Low) | 24 (2 Low) *3 | 24/05/2026 18:00:00 |
| Swansea Roadside Timeseries Graph |
n/m | 44 (1 Low) | n/m | 15 (2 Low) | 23 (2 Low) *1 | 25/05/2026 14:00:00 |
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 | 9 (1 Low) | 26 (2 Low) *2 | 25/05/2026 14:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 30 (1 Low) | n/m | n/m | n/m | 24/05/2026 21:00:00 |
| Bournemouth Timeseries Graph |
105 (4 Moderate) | 27 (1 Low) | n/m | 17 (2 Low) | n/m | 25/05/2026 13:00:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 20 (2 Low) *2 | 25/05/2026 14:00:00 |
| Bristol St Paul's Timeseries Graph |
98 (3 Low) | 83 (2 Low) | n/m | 14 (2 Low) | 26 (2 Low) *1 | 25/05/2026 14:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 70 (2 Low) | n/m | 9 (1 Low) | 20 (2 Low) *2 | 25/05/2026 14:00:00 |
| Charlton Mackrell Timeseries Graph |
86 (3 Low) | 7 (1 Low) | n/m | 9 (1 Low) | 25 (2 Low) *2 | 25/05/2026 13:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | n/m | 25/05/2026 14:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 37 (1 Low) | n/m | 13 (2 Low) | n/m | 25/05/2026 14:00:00 |
| Exeter Roadside Timeseries Graph |
89 (3 Low) | 49 (1 Low) | n/m | n/m | n/m | 24/05/2026 21:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 26 (2 Low) *2 | 25/05/2026 14:00:00 |
| Honiton Timeseries Graph |
101 (4 Moderate) | 12 (1 Low) | n/m | 9 (1 Low) | 28 (2 Low) *2 | 25/05/2026 14:00:00 |
| Plymouth Centre Timeseries Graph |
72 (3 Low) | 38 (1 Low) | n/m | 10 (1 Low) | 40 (3 Low) *2 | 25/05/2026 14:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 13 (1 Low) | n/m | n/m | n/m | 25/05/2026 08:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 27 (2 Low) *1 | 25/05/2026 14:00:00 |
| Swindon Walcot Timeseries Graph |
98 (3 Low) | 25 (1 Low) | n/m | 8 (1 Low) | 23 (2 Low) *2 | 25/05/2026 14:00:00 |
| Yarner Wood Timeseries Graph |
90 (3 Low) | 11 (1 Low) | n/m | 6 (1 Low) | 20 (2 Low) *2 | 25/05/2026 11:00:00 |
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 |
82 (3 Low) | n/m | n/m | n/m | n/m | 24/05/2026 17:00:00 |
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 |
80 (3 Low) | 77 (2 Low) | n/m | 11 (1 Low) | 22 (2 Low) *2 | 25/05/2026 14:00:00 |
| Birmingham Hall Green Timeseries Graph |
103 (4 Moderate) | 61 (1 Low) | n/m | 8 (1 Low) | 20 (2 Low) *2 | 25/05/2026 14:00:00 |
| Birmingham Ladywood Timeseries Graph |
96 (3 Low) | 77 (2 Low) | 3 (1 Low) | 7 (1 Low) | 17 (2 Low) *2 | 25/05/2026 01:15:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 14 (1 Low) *2 | 25/05/2026 14:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
97 (3 Low) | 59 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 25/05/2026 03:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 46 (1 Low) | n/m | 4 (1 Low) | n/m | 25/05/2026 14:00:00 |
| Coventry Allesley Timeseries Graph |
90 (3 Low) | 44 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 25/05/2026 14:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 87 (2 Low) | n/m | 8 (1 Low) | 17 (2 Low) *2 | 25/05/2026 14:00:00 |
| Leamington Spa Timeseries Graph |
97 (3 Low) | 17 (1 Low) | n/m | 5 (1 Low) | 13 (1 Low) *2 | 25/05/2026 14:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 36 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 25/05/2026 14:00:00 |
| Leominster Timeseries Graph |
89 (3 Low) | 9 (1 Low) | n/m | n/m | n/m | 24/05/2026 20:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 73 (2 Low) | n/m | 27 (3 Low) | 39 (3 Low) *2 | 25/05/2026 14:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 12 (1 Low) *2 | 25/05/2026 14:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 77 (2 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 25/05/2026 01:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
80 (3 Low) | 52 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 25/05/2026 01:00:00 |
| Telford Hollinswood Timeseries Graph |
94 (3 Low) | 36 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *2 | 25/05/2026 14:00:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 21 (2 Low) | 35 (3 Low) *2 | 25/05/2026 14:00:00 |
| Walsall Woodlands Timeseries Graph |
96 (3 Low) | 54 (1 Low) | n/m | n/m | n/m | 24/05/2026 18:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
87 (3 Low) | 82 (2 Low) | n/m | n/m | n/m | 24/05/2026 20:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 13 (1 Low) *2 | 25/05/2026 14:00:00 |
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 |
106 (4 Moderate) | 21 (1 Low) | 2 (1 Low) | 4 (1 Low) | 10 (1 Low) *2 | 24/05/2026 18:00:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 56 (1 Low) | n/m | n/m | n/m | 25/05/2026 01:00:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 14 (1 Low) *2 | 25/05/2026 14:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
109 (4 Moderate) | 48 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 25/05/2026 14:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 72 (2 Low) | n/m | 6 (1 Low) | n/m | 25/05/2026 14:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 25/05/2026 14:00:00 |
| High Muffles Timeseries Graph |
101 (4 Moderate) | 5 (1 Low) | n/m | 2 (1 Low) | 5 (1 Low) *2 | 25/05/2026 14:00:00 |
| Hull Freetown Timeseries Graph |
88 (3 Low) | 27 (1 Low) | 3 (1 Low) | 11 (1 Low) | 19 (2 Low) *2 | 24/05/2026 15:15:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 42 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) *2 | 25/05/2026 14:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
89 (3 Low) | 50 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) *2 | 25/05/2026 14:00:00 |
| Leeds Centre Timeseries Graph |
108 (4 Moderate) | 39 (1 Low) | 4 (1 Low) | 5 (1 Low) | 12 (1 Low) *2 | 24/05/2026 15:30:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 30 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *1 | 25/05/2026 14:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 21 (2 Low) *2 | 25/05/2026 06:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 33 (1 Low) | 2 (1 Low) | 11 (1 Low) | 21 (2 Low) *1 | 24/05/2026 21:45:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 61 (1 Low) | n/m | 8 (1 Low) | n/m | 25/05/2026 07:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
112 (4 Moderate) | 38 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 25/05/2026 01:00:00 |
| Sheffield Tinsley Timeseries Graph |
99 (3 Low) | 55 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 25/05/2026 14:00:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 14 (1 Low) *2 | 25/05/2026 01:00:00 |
| York Bootham Timeseries Graph |
98 (3 Low) | 52 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *1 | 25/05/2026 14:00:00 |
| York Fishergate Timeseries Graph |
n/m | 30 (1 Low) | n/m | 4 (1 Low) | 18 (2 Low) *1 | 25/05/2026 14:00:00 |
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