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 9pm Sat 25th Apr 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 |
78 (3 Low) | n/m | n/m | 6 (1 Low) | 9 (1 Low) *2 | 25/04/2026 19:00:00 |
| Bush Estate Timeseries Graph |
93 (3 Low) | 19 (1 Low) | n/m | n/m | n/m | 25/04/2026 21:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 29 (1 Low) | n/m | n/m | n/m | 24/04/2026 23:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 23 (1 Low) | n/m | n/m | n/m | 25/04/2026 09:00:00 |
| Edinburgh St Leonards Timeseries Graph |
92 (3 Low) | 27 (1 Low) | 2 (1 Low) | 12 (2 Low) | 15 (1 Low) *2 | 25/04/2026 17:15:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 52 (1 Low) | n/m | n/m | n/m | 25/04/2026 03:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 63 (1 Low) | n/m | 11 (1 Low) | 19 (2 Low) *2 | 25/04/2026 20:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 86 (2 Low) | n/m | n/m | n/m | 25/04/2026 01:00:00 |
| Glasgow Townhead Timeseries Graph |
99 (3 Low) | 61 (1 Low) | n/m | 10 (1 Low) | 17 (2 Low) *2 | 25/04/2026 20:00:00 |
| Grangemouth Timeseries Graph |
n/m | 16 (1 Low) | 3 (1 Low) | 7 (1 Low) | 16 (1 Low) *1 | 25/04/2026 02:45:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 20 (1 Low) | n/m | n/m | n/m | 25/04/2026 02:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 35 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 25/04/2026 21:00:00 |
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) | 21 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 25/04/2026 01:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 31 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 25/04/2026 01:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 60 (1 Low) | n/m | 7 (1 Low) | n/m | 25/04/2026 21:00:00 |
| Derby Stockbrook Park Timeseries Graph |
109 (4 Moderate) | n/m | n/m | 7 (1 Low) | 12 (1 Low) *2 | 25/04/2026 02:00:00 |
| Ladybower Timeseries Graph |
118 (4 Moderate) | 9 (1 Low) | 7 (1 Low) | 6 (1 Low) | 11 (1 Low) *2 | 25/04/2026 13:00:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 80 (2 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 25/04/2026 21:00:00 |
| Leicester University Timeseries Graph |
110 (4 Moderate) | 54 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 25/04/2026 21:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 74 (2 Low) | n/m | n/m | n/m | 25/04/2026 13:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 13 (1 Low) *2 | 25/04/2026 21:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 16 (1 Low) *2 | 25/04/2026 21:00:00 |
| Northampton Spring Park Timeseries Graph |
110 (4 Moderate) | 24 (1 Low) | n/m | 10 (1 Low) | n/m | 25/04/2026 01:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 25/04/2026 21:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
92 (3 Low) | 31 (1 Low) | 2 (1 Low) | 8 (1 Low) | 14 (1 Low) *2 | 25/04/2026 09:15:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 41 (1 Low) | n/m | 9 (1 Low) | 18 (2 Low) *2 | 25/04/2026 21:00:00 |
| Tallington Timeseries Graph |
106 (4 Moderate) | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 25/04/2026 21:00:00 |
| Toft Newton Timeseries Graph |
94 (3 Low) | 8 (1 Low) | n/m | 9 (1 Low) | 12 (1 Low) *2 | 25/04/2026 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 | n/a | n/m | 6 (1 Low) | 10 (1 Low) *2 | 25/04/2026 11:00:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 13 (1 Low) *2 | 25/04/2026 21:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 33 (1 Low) | n/m | n/m | n/m | 25/04/2026 15:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 105 (2 Low) | n/m | 6 (1 Low) | n/m | 25/04/2026 01:00:00 |
| Norwich Lakenfields Timeseries Graph |
91 (3 Low) | 12 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *2 | 25/04/2026 21:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 25/04/2026 21:00:00 |
| Sibton Timeseries Graph |
89 (3 Low) | n/m | n/m | 5 (1 Low) | 7 (1 Low) *2 | 25/04/2026 04:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 8 (1 Low) *2 | 25/04/2026 14:00:00 |
| Southend-on-Sea Timeseries Graph |
90 (3 Low) | 29 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *2 | 25/04/2026 14:00:00 |
| St Osyth Timeseries Graph |
111 (4 Moderate) | 15 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 25/04/2026 05:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 48 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *1 | 25/04/2026 06:00:00 |
| Thurrock Timeseries Graph |
n/a | n/a | 2 (1 Low) | 7 (1 Low) | 11 (1 Low) *2 | 25/04/2026 06:00:00 |
| Weybourne Timeseries Graph |
84 (3 Low) | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 25/04/2026 19:00:00 |
| Wicken Fen Timeseries Graph |
99 (3 Low) | 7 (1 Low) | 2 (1 Low) | 7 (1 Low) | 12 (1 Low) *2 | 25/04/2026 16:00:00 |
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 | 49 (1 Low) | n/m | 12 (2 Low) | 27 (2 Low) *1 | 25/04/2026 21:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 29 (2 Low) *1 | 25/04/2026 11:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 54 (1 Low) | n/m | n/m | n/m | 24/04/2026 22:00:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | n/m | 25/04/2026 21:00:00 |
| London Bexley Timeseries Graph |
n/m | 45 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 25/04/2026 13:00:00 |
| London Bloomsbury Timeseries Graph |
84 (3 Low) | 42 (1 Low) | 2 (1 Low) | 9 (1 Low) | 15 (1 Low) *2 | 25/04/2026 02:30:00 |
| London Farringdon Street Timeseries Graph |
n/m | 54 (1 Low) | n/m | 12 (2 Low) | n/m | 25/04/2026 21:00:00 |
| London Haringey Priory Park South Timeseries Graph |
101 (4 Moderate) | 34 (1 Low) | n/m | 9 (1 Low) | 19 (2 Low) *2 | 25/04/2026 11:00:00 |
| London Harlington Timeseries Graph |
88 (3 Low) | 52 (1 Low) | n/m | 8 (1 Low) | 17 (2 Low) *2 | 25/04/2026 21:00:00 |
| London Hillingdon Timeseries Graph |
89 (3 Low) | 64 (1 Low) | n/m | 10 (1 Low) | 18 (2 Low) *2 | 25/04/2026 21:00:00 |
| London Honor Oak Park Timeseries Graph |
102 (4 Moderate) | n/m | n/m | 8 (1 Low) | 12 (1 Low) *2 | 25/04/2026 21:00:00 |
| London Marylebone Road Timeseries Graph |
70 (3 Low) | 50 (1 Low) | 3 (1 Low) | 10 (1 Low) | 20 (2 Low) *1 | 24/04/2026 14:00:00 |
| London N. Kensington Timeseries Graph |
93 (3 Low) | 40 (1 Low) | 3 (1 Low) | 10 (1 Low) | 14 (1 Low) *2 | 24/04/2026 21:15:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 13 (1 Low) *2 | 25/04/2026 21:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 15 (1 Low) *2 | 25/04/2026 21:00:00 |
| London Westminster Timeseries Graph |
83 (3 Low) | 47 (1 Low) | n/m | n/m | n/m | 25/04/2026 20:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 50 (1 Low) | n/m | n/m | 30 (2 Low) *1 | 25/04/2026 12:00:00 |
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 |
95 (3 Low) | 15 (1 Low) | n/m | n/m | n/m | 24/04/2026 22:00:00 |
| Inverness Timeseries Graph |
n/m | 13 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 25/04/2026 12:00:00 |
| Lerwick Timeseries Graph |
100 (3 Low) | n/m | n/m | n/m | n/m | 24/04/2026 22:00:00 |
| Strathvaich Timeseries Graph |
106 (4 Moderate) | n/m | n/m | n/m | n/m | 24/04/2026 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 |
| Hartlepool St Abbs Walk Timeseries Graph |
92 (3 Low) | 45 (1 Low) | n/m | 11 (1 Low) | 21 (2 Low) *2 | 25/04/2026 11:00:00 |
| Kielder Water Timeseries Graph |
83 (3 Low) | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 25/04/2026 21:00:00 |
| Middlesbrough Timeseries Graph |
88 (3 Low) | 63 (1 Low) | 1 (1 Low) | 9 (1 Low) | 26 (2 Low) *1 | 25/04/2026 15:15:00 |
| Newcastle Centre Timeseries Graph |
87 (3 Low) | 66 (1 Low) | n/m | 11 (1 Low) | 24 (2 Low) *1 | 25/04/2026 02:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 75 (2 Low) | n/m | 11 (1 Low) | 20 (2 Low) *2 | 25/04/2026 02:00:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 27 (2 Low) *2 | 25/04/2026 07:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 70 (2 Low) | n/m | 10 (1 Low) | n/m | 25/04/2026 16:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 23 (1 Low) | n/m | 7 (1 Low) | 20 (2 Low) *1 | 24/04/2026 09:00:00 |
| Sunderland Silksworth Timeseries Graph |
89 (3 Low) | 63 (1 Low) | n/m | 14 (2 Low) | 22 (2 Low) *2 | 25/04/2026 06:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 63 (1 Low) | n/m | 12 (2 Low) | n/m | 25/04/2026 04:00:00 |
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 |
90 (3 Low) | 20 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) *2 | 25/04/2026 08:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 72 (2 Low) | n/m | n/m | n/m | 24/04/2026 23:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 14 (1 Low) | n/m | n/m | n/m | 24/04/2026 22:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 14 (1 Low) | n/m | n/m | n/m | 24/04/2026 22:00:00 |
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 |
111 (4 Moderate) | 6 (1 Low) | n/m | n/m | n/m | 25/04/2026 20:00:00 |
| Wrexham Timeseries Graph |
n/m | 42 (1 Low) | 3 (1 Low) | 8 (1 Low) | 15 (1 Low) *2 | 25/04/2026 16:45:00 |
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 | 57 (1 Low) | n/m | 12 (2 Low) | n/m | 25/04/2026 12:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 70 (2 Low) | n/m | n/m | n/m | 24/04/2026 23:00:00 |
| Blackburn Audley Park Timeseries Graph |
101 (4 Moderate) | n/m | n/m | 12 (2 Low) | 19 (2 Low) *2 | 25/04/2026 20:00:00 |
| Blackpool Marton Timeseries Graph |
104 (4 Moderate) | 30 (1 Low) | n/m | 14 (2 Low) | 21 (2 Low) *2 | 25/04/2026 17:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | n/m | 25/04/2026 03:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 65 (1 Low) | n/m | n/m | 23 (2 Low) *1 | 24/04/2026 24:00: |
| Carlisle Morton A595 Timeseries Graph |
n/m | 30 (1 Low) | n/m | 6 (1 Low) | 16 (1 Low) *1 | 25/04/2026 21:00:00 |
| Crewe Coppenhall Timeseries Graph |
120 (4 Moderate) | 39 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *2 | 25/04/2026 21:00:00 |
| Glazebury Timeseries Graph |
111 (4 Moderate) | 45 (1 Low) | n/m | 9 (1 Low) | 20 (2 Low) *2 | 25/04/2026 21:00:00 |
| Liverpool Speke Timeseries Graph |
102 (4 Moderate) | 57 (1 Low) | 18 (1 Low) | 13 (2 Low) | 23 (2 Low) *1 | 25/04/2026 11:30:00 |
| Liverpool Thirlmere Park Timeseries Graph |
93 (3 Low) | n/m | n/m | 10 (1 Low) | 18 (2 Low) *2 | 25/04/2026 21:00:00 |
| Manchester Piccadilly Timeseries Graph |
85 (3 Low) | 67 (1 Low) | 3 (1 Low) | 15 (2 Low) | 37 (3 Low) *2 | 25/04/2026 16:30:00 |
| Manchester Sharston Timeseries Graph |
104 (4 Moderate) | 64 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 25/04/2026 21:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | n/m | 25/04/2026 21:00:00 |
| Preston Timeseries Graph |
102 (4 Moderate) | 68 (2 Low) | n/m | 14 (2 Low) | 22 (2 Low) *2 | 25/04/2026 19:00:00 |
| Salford Eccles Timeseries Graph |
115 (4 Moderate) | 89 (2 Low) | n/m | 14 (2 Low) | 25 (2 Low) *2 | 25/04/2026 21:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 36 (1 Low) | n/m | n/m | n/m | 25/04/2026 13:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 77 (2 Low) | n/m | n/m | 25 (2 Low) *1 | 24/04/2026 23:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 25/04/2026 01:00:00 |
| Warrington Timeseries Graph |
n/m | 45 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *1 | 25/04/2026 21:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 59 (1 Low) | n/m | n/m | n/m | 24/04/2026 24:00: |
| Wigan Centre Timeseries Graph |
102 (4 Moderate) | 42 (1 Low) | n/m | 13 (2 Low) | 23 (2 Low) *2 | 25/04/2026 21:00:00 |
| Wirral Tranmere Timeseries Graph |
107 (4 Moderate) | 33 (1 Low) | n/m | 11 (1 Low) | 18 (2 Low) *2 | 25/04/2026 21:00:00 |
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 | 58 (1 Low) | n/m | n/m | 26 (2 Low) *1 | 24/04/2026 23:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 43 (1 Low) | n/m | n/m | n/m | 25/04/2026 10:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 37 (1 Low) | 14 (1 Low) | n/m | n/m | 25/04/2026 10:15:00 |
| Belfast Centre Timeseries Graph |
70 (3 Low) | 91 (2 Low) | 9 (1 Low) | 14 (2 Low) | 27 (2 Low) *2 | 25/04/2026 11:45:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 91 (2 Low) | n/m | n/m | 33 (2 Low) *1 | 24/04/2026 22:00:00 |
| Derry Rosemount Timeseries Graph |
98 (3 Low) | 39 (1 Low) | 7 (1 Low) | 8 (1 Low) | 21 (2 Low) *1 | 25/04/2026 21:00:00 |
| Lough Navar Timeseries Graph |
92 (3 Low) | n/m | n/m | 7 (1 Low) | 11 (1 Low) *2 | 25/04/2026 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 | 38 (1 Low) | n/m | n/m | n/m | 24/04/2026 22:00:00 |
| Eskdalemuir Timeseries Graph |
95 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 24/04/2026 22:00:00 |
| Peebles Timeseries Graph |
97 (3 Low) | 14 (1 Low) | n/m | n/m | n/m | 24/04/2026 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 | 5 (1 Low) | n/m | 25/04/2026 02:00:00 |
| Brighton Preston Park Timeseries Graph |
83 (3 Low) | 27 (1 Low) | n/m | 6 (1 Low) | 9 (1 Low) *2 | 25/04/2026 21:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 15 (1 Low) | n/m | 7 (1 Low) | 19 (2 Low) *1 | 25/04/2026 16:00:00 |
| Chilbolton Observatory Timeseries Graph |
111 (4 Moderate) | 14 (1 Low) | 4 (1 Low) | 6 (1 Low) | 11 (1 Low) *2 | 25/04/2026 21:00:00 |
| Eastbourne Timeseries Graph |
94 (3 Low) | 50 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *2 | 25/04/2026 17:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 11 (1 Low) *2 | 25/04/2026 10:00:00 |
| Horley Timeseries Graph |
n/m | 19 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 25/04/2026 12:00:00 |
| Lullington Heath Timeseries Graph |
95 (3 Low) | 31 (1 Low) | 3 (1 Low) | 5 (1 Low) | 8 (1 Low) *2 | 24/04/2026 21:15:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 20 (2 Low) *2 | 25/04/2026 12:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
101 (4 Moderate) | n/m | n/m | 7 (1 Low) | 12 (1 Low) *2 | 25/04/2026 01:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 66 (1 Low) | n/m | n/m | n/m | 25/04/2026 21:00:00 |
| Oxford St Ebbes Timeseries Graph |
101 (4 Moderate) | 69 (2 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 25/04/2026 01:00:00 |
| Portsmouth Timeseries Graph |
88 (3 Low) | 49 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 25/04/2026 21:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 54 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 25/04/2026 21:00:00 |
| Reading London Road Timeseries Graph |
n/m | 75 (2 Low) | n/m | n/m | 17 (2 Low) *1 | 24/04/2026 22:00:00 |
| Reading New Town Timeseries Graph |
94 (3 Low) | 39 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 25/04/2026 11:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 25/04/2026 01:00:00 |
| Rochester Stoke Timeseries Graph |
98 (3 Low) | 10 (1 Low) | 1 (1 Low) | 6 (1 Low) | 8 (1 Low) *2 | 25/04/2026 20:45:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 22 (2 Low) *2 | 25/04/2026 21:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 90 (2 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 25/04/2026 02:00:00 |
| Southampton Centre Timeseries Graph |
80 (3 Low) | 74 (2 Low) | 3 (1 Low) | 7 (1 Low) | 14 (1 Low) *2 | 25/04/2026 13:45:00 |
| Storrington Roadside Timeseries Graph |
n/m | 37 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 25/04/2026 21:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 33 (1 Low) | n/m | 9 (1 Low) | n/m | 25/04/2026 16:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 12 (1 Low) *2 | 25/04/2026 17:00:00 |
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 |
110 (4 Moderate) | 43 (1 Low) | 3 (1 Low) | 10 (1 Low) | 15 (1 Low) *1 | 25/04/2026 13:15:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 70 (2 Low) | n/m | n/m | 26 (2 Low) *1 | 24/04/2026 22:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 91 (2 Low) | n/m | 9 (1 Low) | 12 (1 Low) *1 | 25/04/2026 01:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
117 (4 Moderate) | 27 (1 Low) | n/m | n/m | n/m | 25/04/2026 20:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 61 (1 Low) | n/m | n/m | n/m | 25/04/2026 20:00:00 |
| Narberth Timeseries Graph |
110 (4 Moderate) | 11 (1 Low) | 3 (1 Low) | 6 (1 Low) | 19 (2 Low) *2 | 25/04/2026 08:15:00 |
| Newport Timeseries Graph |
n/m | 52 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 25/04/2026 01:00:00 |
| Port Talbot Margam Timeseries Graph |
110 (4 Moderate) | 25 (1 Low) | 3 (1 Low) | 6 (1 Low) | 12 (1 Low) *3 | 25/04/2026 10:30:00 |
| Swansea Roadside Timeseries Graph |
n/m | 73 (2 Low) | n/m | 12 (2 Low) | 18 (2 Low) *1 | 25/04/2026 21:00:00 |
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) | 13 (1 Low) *2 | 25/04/2026 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 |
94 (3 Low) | 21 (1 Low) | n/m | 9 (1 Low) | n/m | 25/04/2026 21:00:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 12 (1 Low) *2 | 25/04/2026 01:00:00 |
| Bristol St Paul's Timeseries Graph |
108 (4 Moderate) | 70 (2 Low) | n/m | 10 (1 Low) | 19 (2 Low) *1 | 25/04/2026 21:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 71 (2 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 25/04/2026 02:00:00 |
| Charlton Mackrell Timeseries Graph |
108 (4 Moderate) | 9 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 25/04/2026 21:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 25/04/2026 02:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 39 (1 Low) | n/m | 7 (1 Low) | n/m | 25/04/2026 21:00:00 |
| Exeter Roadside Timeseries Graph |
97 (3 Low) | 71 (2 Low) | n/m | n/m | n/m | 25/04/2026 21:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 15 (1 Low) *2 | 25/04/2026 01:00:00 |
| Honiton Timeseries Graph |
113 (4 Moderate) | 19 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 25/04/2026 21:00:00 |
| Plymouth Centre Timeseries Graph |
85 (3 Low) | 78 (2 Low) | n/m | 11 (1 Low) | 45 (3 Low) *2 | 25/04/2026 01:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 55 (1 Low) | n/m | n/m | n/m | 25/04/2026 08:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 19 (2 Low) *1 | 25/04/2026 21:00:00 |
| Swindon Walcot Timeseries Graph |
108 (4 Moderate) | 27 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 25/04/2026 02:00:00 |
| Yarner Wood Timeseries Graph |
107 (4 Moderate) | 7 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 25/04/2026 21:00:00 |
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 |
111 (4 Moderate) | n/m | n/m | n/m | n/m | 24/04/2026 21:00:00 |
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 |
99 (3 Low) | 82 (2 Low) | n/m | 11 (1 Low) | 19 (2 Low) *2 | 25/04/2026 21:00:00 |
| Birmingham Hall Green Timeseries Graph |
118 (4 Moderate) | 68 (2 Low) | n/m | 8 (1 Low) | 17 (2 Low) *2 | 25/04/2026 18:00:00 |
| Birmingham Ladywood Timeseries Graph |
59 (2 Low) | 91 (2 Low) | 3 (1 Low) | 8 (1 Low) | 16 (1 Low) *2 | 25/04/2026 08:30:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 25/04/2026 21:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
116 (4 Moderate) | 39 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 25/04/2026 21:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 56 (1 Low) | n/m | 7 (1 Low) | n/m | 25/04/2026 21:00:00 |
| Coventry Allesley Timeseries Graph |
111 (4 Moderate) | 59 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 25/04/2026 21:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 85 (2 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 25/04/2026 21:00:00 |
| Leamington Spa Timeseries Graph |
119 (4 Moderate) | 31 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 25/04/2026 01:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 45 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 25/04/2026 19:00:00 |
| Leominster Timeseries Graph |
114 (4 Moderate) | 15 (1 Low) | n/m | n/m | n/m | 25/04/2026 20:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 92 (2 Low) | n/m | 11 (1 Low) | 19 (2 Low) *2 | 25/04/2026 21:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 25/04/2026 03:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 95 (2 Low) | n/m | 10 (1 Low) | 20 (2 Low) *2 | 25/04/2026 21:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
97 (3 Low) | 41 (1 Low) | n/m | 8 (1 Low) | 16 (1 Low) *2 | 25/04/2026 21:00:00 |
| Telford Hollinswood Timeseries Graph |
116 (4 Moderate) | 62 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 25/04/2026 21:00:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 19 (2 Low) *2 | 25/04/2026 21:00:00 |
| Walsall Woodlands Timeseries Graph |
116 (4 Moderate) | 43 (1 Low) | n/m | n/m | n/m | 25/04/2026 20:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
106 (4 Moderate) | 74 (2 Low) | n/m | n/m | n/m | 25/04/2026 20:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 11 (1 Low) *2 | 25/04/2026 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 |
97 (3 Low) | 40 (1 Low) | 6 (1 Low) | 13 (2 Low) | 25 (2 Low) *2 | 25/04/2026 14:45:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 85 (2 Low) | n/m | n/m | n/m | 24/04/2026 24:00: |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | 33 (2 Low) *2 | 25/04/2026 02:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
89 (3 Low) | 70 (2 Low) | n/m | 18 (2 Low) | 28 (2 Low) *2 | 25/04/2026 02:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 53 (1 Low) | n/m | 13 (2 Low) | n/m | 25/04/2026 01:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 19 (2 Low) *2 | 25/04/2026 08:00:00 |
| High Muffles Timeseries Graph |
91 (3 Low) | 6 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 25/04/2026 20:00:00 |
| Hull Freetown Timeseries Graph |
85 (3 Low) | 59 (1 Low) | 3 (1 Low) | 8 (1 Low) | 15 (1 Low) *2 | 25/04/2026 10:15:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 45 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 25/04/2026 01:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
82 (3 Low) | 16 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 25/04/2026 03:00:00 |
| Leeds Centre Timeseries Graph |
86 (3 Low) | 88 (2 Low) | 8 (1 Low) | 20 (2 Low) | 34 (3 Low) *2 | 24/04/2026 21:45:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 54 (1 Low) | n/m | 20 (2 Low) | 33 (2 Low) *1 | 25/04/2026 03:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 19 (2 Low) *2 | 25/04/2026 01:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 22 (1 Low) | 9 (1 Low) | 13 (2 Low) | 27 (2 Low) *1 | 25/04/2026 09:45:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 81 (2 Low) | n/m | 16 (2 Low) | n/m | 25/04/2026 03:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
108 (4 Moderate) | 53 (1 Low) | n/m | 13 (2 Low) | 22 (2 Low) *2 | 25/04/2026 01:00:00 |
| Sheffield Tinsley Timeseries Graph |
94 (3 Low) | 79 (2 Low) | n/m | 15 (2 Low) | 30 (2 Low) *2 | 25/04/2026 01:00:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 31 (2 Low) *2 | 25/04/2026 03:00:00 |
| York Bootham Timeseries Graph |
77 (3 Low) | 33 (1 Low) | n/m | 11 (1 Low) | 19 (2 Low) *1 | 25/04/2026 21:00:00 |
| York Fishergate Timeseries Graph |
n/m | 34 (1 Low) | n/m | 8 (1 Low) | 24 (2 Low) *1 | 25/04/2026 21:00:00 |
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