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 4am Sat 2nd 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 |
78 (3 Low) | n/m | n/m | 7 (1 Low) | 14 (1 Low) *2 | 02/05/2026 04:00:00 |
| Bush Estate Timeseries Graph |
83 (3 Low) | 20 (1 Low) | n/m | n/m | n/m | 02/05/2026 02:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 30 (1 Low) | n/m | n/m | n/m | 01/05/2026 09:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 59 (1 Low) | n/m | n/m | n/m | 01/05/2026 19:00:00 |
| Edinburgh St Leonards Timeseries Graph |
80 (3 Low) | 28 (1 Low) | 3 (1 Low) | 9 (1 Low) | 18 (2 Low) *2 | 01/05/2026 12:00:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 36 (1 Low) | n/m | n/m | n/m | 01/05/2026 17:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 31 (1 Low) | n/m | 11 (1 Low) | 25 (2 Low) *2 | 02/05/2026 04:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 93 (2 Low) | n/m | n/m | n/m | 01/05/2026 10:00:00 |
| Glasgow Townhead Timeseries Graph |
87 (3 Low) | 37 (1 Low) | n/m | 10 (1 Low) | 22 (2 Low) *2 | 02/05/2026 04:00:00 |
| Grangemouth Timeseries Graph |
n/m | 34 (1 Low) | 5 (1 Low) | 10 (1 Low) | 21 (2 Low) *1 | 01/05/2026 13:15:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 35 (1 Low) | n/m | n/m | n/m | 01/05/2026 16:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 41 (1 Low) | n/m | 9 (1 Low) | 21 (2 Low) *2 | 02/05/2026 04:00:00 |
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 |
107 (4 Moderate) | 35 (1 Low) | n/m | 11 (1 Low) | 23 (2 Low) *2 | 02/05/2026 04:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 45 (1 Low) | n/m | 12 (2 Low) | 27 (2 Low) *2 | 02/05/2026 04:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 54 (1 Low) | n/m | 14 (2 Low) | n/m | 02/05/2026 04:00:00 |
| Derby Stockbrook Park Timeseries Graph |
102 (4 Moderate) | n/m | n/m | 12 (2 Low) | 26 (2 Low) *2 | 02/05/2026 04:00:00 |
| Ladybower Timeseries Graph |
118 (4 Moderate) | 14 (1 Low) | 6 (1 Low) | 16 (2 Low) | 28 (2 Low) *2 | 01/05/2026 14:00:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 54 (1 Low) | n/m | 12 (2 Low) | 27 (2 Low) *2 | 02/05/2026 04:00:00 |
| Leicester University Timeseries Graph |
109 (4 Moderate) | 29 (1 Low) | n/m | 11 (1 Low) | 22 (2 Low) *2 | 02/05/2026 04:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 77 (2 Low) | n/m | n/m | n/m | 01/05/2026 08:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 23 (2 Low) *2 | 02/05/2026 04:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 27 (2 Low) *2 | 02/05/2026 04:00:00 |
| Northampton Spring Park Timeseries Graph |
110 (4 Moderate) | 23 (1 Low) | n/m | n/a | n/m | 02/05/2026 01:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 26 (2 Low) *2 | 02/05/2026 04:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
104 (4 Moderate) | 19 (1 Low) | 3 (1 Low) | 15 (2 Low) | 29 (2 Low) *2 | 01/05/2026 09:00:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 55 (1 Low) | n/m | 14 (2 Low) | 28 (2 Low) *2 | 02/05/2026 04:00:00 |
| Tallington Timeseries Graph |
124 (5 Moderate) | n/m | n/m | 11 (1 Low) | 26 (2 Low) *2 | 02/05/2026 04:00:00 |
| Toft Newton Timeseries Graph |
128 (5 Moderate) | 14 (1 Low) | n/m | 10 (1 Low) | 24 (2 Low) *2 | 02/05/2026 04:00:00 |
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 | 24 (1 Low) | n/m | 8 (1 Low) | 21 (2 Low) *2 | 02/05/2026 04:00:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 23 (2 Low) *2 | 02/05/2026 04:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 46 (1 Low) | n/m | n/m | n/m | 01/05/2026 17:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 47 (1 Low) | n/m | 8 (1 Low) | n/m | 02/05/2026 04:00:00 |
| Norwich Lakenfields Timeseries Graph |
102 (4 Moderate) | 22 (1 Low) | n/m | 8 (1 Low) | 19 (2 Low) *2 | 02/05/2026 04:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 28 (2 Low) *2 | 02/05/2026 01:00:00 |
| Sibton Timeseries Graph |
100 (3 Low) | n/m | n/m | 9 (1 Low) | 21 (2 Low) *2 | 02/05/2026 04:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 19 (2 Low) *2 | 02/05/2026 04:00:00 |
| Southend-on-Sea Timeseries Graph |
100 (3 Low) | 22 (1 Low) | n/m | 8 (1 Low) | 21 (2 Low) *2 | 02/05/2026 04:00:00 |
| St Osyth Timeseries Graph |
102 (4 Moderate) | 19 (1 Low) | n/m | 10 (1 Low) | 26 (2 Low) *2 | 02/05/2026 03:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 61 (1 Low) | n/m | 11 (1 Low) | 22 (2 Low) *1 | 02/05/2026 04:00:00 |
| Stevenage St Georges Way South Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 02/05/2026 04:00:00 |
| Thurrock Timeseries Graph |
n/a | n/a | 2 (1 Low) | 8 (1 Low) | 22 (2 Low) *2 | 01/05/2026 13:45:00 |
| Weybourne Timeseries Graph |
112 (4 Moderate) | n/m | n/m | 7 (1 Low) | 18 (2 Low) *2 | 02/05/2026 04:00:00 |
| Wicken Fen Timeseries Graph |
105 (4 Moderate) | 11 (1 Low) | 4 (1 Low) | 8 (1 Low) | 22 (2 Low) *2 | 01/05/2026 07:45:00 |
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 | 70 (2 Low) | n/m | 12 (2 Low) | 32 (2 Low) *1 | 02/05/2026 04:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 39 (3 Low) *1 | 02/05/2026 01:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 53 (1 Low) | n/m | n/m | n/m | 01/05/2026 08:00:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | n/m | 02/05/2026 04:00:00 |
| London Bexley Timeseries Graph |
n/m | 71 (2 Low) | n/m | 8 (1 Low) | 27 (2 Low) *2 | 01/05/2026 12:00:00 |
| London Bloomsbury Timeseries Graph |
99 (3 Low) | 49 (1 Low) | 2 (1 Low) | 9 (1 Low) | 23 (2 Low) *2 | 01/05/2026 10:15:00 |
| London Farringdon Street Timeseries Graph |
n/m | 59 (1 Low) | n/m | 10 (1 Low) | n/m | 02/05/2026 04:00:00 |
| London Haringey Priory Park South Timeseries Graph |
109 (4 Moderate) | 40 (1 Low) | n/m | 8 (1 Low) | 21 (2 Low) *2 | 02/05/2026 04:00:00 |
| London Harlington Timeseries Graph |
103 (4 Moderate) | 62 (1 Low) | n/m | 7 (1 Low) | 27 (2 Low) *2 | 01/05/2026 02:00:00 |
| London Hillingdon Timeseries Graph |
89 (3 Low) | 62 (1 Low) | n/m | 10 (1 Low) | 27 (2 Low) *2 | 02/05/2026 04:00:00 |
| London Honor Oak Park Timeseries Graph |
117 (4 Moderate) | n/m | n/m | 7 (1 Low) | 17 (2 Low) *2 | 02/05/2026 04:00:00 |
| London Marylebone Road Timeseries Graph |
70 (3 Low) | 80 (2 Low) | 6 (1 Low) | 14 (2 Low) | 43 (3 Low) *1 | 01/05/2026 11:00:00 |
| London N. Kensington Timeseries Graph |
108 (4 Moderate) | 42 (1 Low) | 3 (1 Low) | 8 (1 Low) | 19 (2 Low) *2 | 01/05/2026 10:45:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 17 (2 Low) *2 | 02/05/2026 04:00:00 |
| 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 |
96 (3 Low) | 37 (1 Low) | n/m | n/m | n/m | 01/05/2026 20:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 55 (1 Low) | n/m | n/m | 31 (2 Low) *1 | 01/05/2026 07:00:00 |
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 |
98 (3 Low) | 30 (1 Low) | n/m | n/m | n/m | 02/05/2026 04:00:00 |
| Inverness Timeseries Graph |
n/m | 25 (1 Low) | n/m | 5 (1 Low) | 15 (1 Low) *2 | 02/05/2026 04:00:00 |
| Lerwick Timeseries Graph |
97 (3 Low) | n/m | n/m | n/m | n/m | 01/05/2026 07:00:00 |
| Strathvaich Timeseries Graph |
117 (4 Moderate) | n/m | n/m | n/m | n/m | 01/05/2026 21:00:00 |
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 | 10 (1 Low) | 21 (2 Low) *2 | 02/05/2026 01:00:00 |
| Hartlepool St Abbs Walk Timeseries Graph |
91 (3 Low) | 33 (1 Low) | n/m | 13 (2 Low) | 31 (2 Low) *2 | 02/05/2026 01:00:00 |
| Kielder Water Timeseries Graph |
96 (3 Low) | n/m | n/m | 7 (1 Low) | 15 (1 Low) *2 | 02/05/2026 04:00:00 |
| Middlesbrough Timeseries Graph |
111 (4 Moderate) | 27 (1 Low) | 3 (1 Low) | 9 (1 Low) | 27 (2 Low) *1 | 01/05/2026 15:15:00 |
| Newcastle Centre Timeseries Graph |
72 (3 Low) | 63 (1 Low) | n/m | 15 (2 Low) | 32 (2 Low) *1 | 02/05/2026 04:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 80 (2 Low) | n/m | 12 (2 Low) | 26 (2 Low) *2 | 02/05/2026 04:00:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 33 (2 Low) *2 | 02/05/2026 03:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | 10 (1 Low) | n/m | 02/05/2026 04:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 14 (1 Low) | n/m | 9 (1 Low) | 24 (2 Low) *1 | 02/05/2026 03:00:00 |
| Sunderland Silksworth Timeseries Graph |
86 (3 Low) | 50 (1 Low) | n/m | 14 (2 Low) | 29 (2 Low) *2 | 02/05/2026 04:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 31 (1 Low) | n/m | 12 (2 Low) | n/m | 02/05/2026 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 |
83 (3 Low) | 21 (1 Low) | n/m | 8 (1 Low) | 22 (2 Low) *2 | 02/05/2026 01:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 54 (1 Low) | n/m | n/m | n/m | 01/05/2026 09:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 29 (1 Low) | n/m | n/m | n/m | 01/05/2026 16:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 42 (1 Low) | n/m | n/m | n/m | 01/05/2026 20:00:00 |
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 |
96 (3 Low) | 9 (1 Low) | n/m | n/m | n/m | 01/05/2026 05:00:00 |
| Wrexham Timeseries Graph |
n/m | 40 (1 Low) | 4 (1 Low) | 12 (2 Low) | 24 (2 Low) *2 | 01/05/2026 15:30:00 |
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 | 45 (1 Low) | n/m | 13 (2 Low) | n/m | 02/05/2026 01:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 32 (1 Low) | n/m | n/m | n/m | 01/05/2026 10:00:00 |
| Blackburn Audley Park Timeseries Graph |
85 (3 Low) | n/m | n/m | 12 (2 Low) | 23 (2 Low) *2 | 02/05/2026 04:00:00 |
| Blackpool Marton Timeseries Graph |
81 (3 Low) | 29 (1 Low) | n/m | 13 (2 Low) | 24 (2 Low) *2 | 02/05/2026 03:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | n/m | 02/05/2026 03:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 35 (1 Low) | n/m | n/m | 34 (3 Low) *1 | 01/05/2026 08:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 26 (1 Low) | n/m | 12 (2 Low) | 25 (2 Low) *1 | 02/05/2026 04:00:00 |
| Crewe Coppenhall Timeseries Graph |
86 (3 Low) | 27 (1 Low) | n/m | 14 (2 Low) | 27 (2 Low) *2 | 02/05/2026 04:00:00 |
| Glazebury Timeseries Graph |
90 (3 Low) | 34 (1 Low) | n/m | 12 (2 Low) | 24 (2 Low) *2 | 02/05/2026 04:00:00 |
| Liverpool Speke Timeseries Graph |
76 (3 Low) | 51 (1 Low) | 15 (1 Low) | 17 (2 Low) | 30 (2 Low) *1 | 01/05/2026 11:30:00 |
| Liverpool Thirlmere Park Timeseries Graph |
76 (3 Low) | n/m | n/m | 12 (2 Low) | 27 (2 Low) *2 | 02/05/2026 01:00:00 |
| Manchester Piccadilly Timeseries Graph |
83 (3 Low) | 57 (1 Low) | 10 (1 Low) | 18 (2 Low) | 34 (3 Low) *2 | 01/05/2026 07:45:00 |
| Manchester Sharston Timeseries Graph |
93 (3 Low) | 47 (1 Low) | n/m | 13 (2 Low) | 26 (2 Low) *2 | 02/05/2026 03:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | n/m | 02/05/2026 04:00:00 |
| Preston Timeseries Graph |
84 (3 Low) | 27 (1 Low) | n/m | 13 (2 Low) | 24 (2 Low) *2 | 02/05/2026 04:00:00 |
| Salford Eccles Timeseries Graph |
97 (3 Low) | 59 (1 Low) | n/m | 16 (2 Low) | 34 (3 Low) *2 | 02/05/2026 04:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 59 (1 Low) | n/m | n/m | n/m | 01/05/2026 08:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 52 (1 Low) | n/m | n/m | 26 (2 Low) *1 | 01/05/2026 07:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 17 (2 Low) | n/m | 02/05/2026 04:00:00 |
| Warrington Timeseries Graph |
n/m | 35 (1 Low) | n/m | 12 (2 Low) | 26 (2 Low) *1 | 02/05/2026 04:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 51 (1 Low) | n/m | n/m | n/m | 01/05/2026 08:00:00 |
| Wigan Centre Timeseries Graph |
83 (3 Low) | n/a | n/m | 15 (2 Low) | 31 (2 Low) *2 | 02/05/2026 01:00:00 |
| Wirral Tranmere Timeseries Graph |
79 (3 Low) | 23 (1 Low) | n/m | 12 (2 Low) | 23 (2 Low) *2 | 02/05/2026 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 | 42 (1 Low) | n/m | n/m | 26 (2 Low) *1 | 01/05/2026 15:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | n/m | 01/05/2026 08:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 25 (1 Low) | 5 (1 Low) | n/m | n/m | 01/05/2026 14:15:00 |
| Belfast Centre Timeseries Graph |
84 (3 Low) | 45 (1 Low) | 2 (1 Low) | 16 (2 Low) | 28 (2 Low) *2 | 01/05/2026 07:15:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 79 (2 Low) | n/m | n/m | 35 (3 Low) *1 | 01/05/2026 08:00:00 |
| Derry Rosemount Timeseries Graph |
86 (3 Low) | 15 (1 Low) | 2 (1 Low) | 8 (1 Low) | 23 (2 Low) *1 | 02/05/2026 01:30:00 |
| Lough Navar Timeseries Graph |
87 (3 Low) | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 02/05/2026 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 | 51 (1 Low) | n/m | n/m | n/m | 01/05/2026 11:00:00 |
| Eskdalemuir Timeseries Graph |
102 (4 Moderate) | 6 (1 Low) | n/m | n/m | n/m | 01/05/2026 17:00:00 |
| Peebles Timeseries Graph |
93 (3 Low) | 9 (1 Low) | n/m | n/m | n/m | 01/05/2026 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 | 8 (1 Low) | n/m | 02/05/2026 04:00:00 |
| Brighton Preston Park Timeseries Graph |
89 (3 Low) | 23 (1 Low) | n/m | 10 (1 Low) | 18 (2 Low) *2 | 02/05/2026 04:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 42 (1 Low) | n/m | 8 (1 Low) | 28 (2 Low) *1 | 02/05/2026 04:00:00 |
| Chilbolton Observatory Timeseries Graph |
100 (3 Low) | 13 (1 Low) | 3 (1 Low) | 9 (1 Low) | 19 (2 Low) *2 | 01/05/2026 13:30:00 |
| Eastbourne Timeseries Graph |
87 (3 Low) | 11 (1 Low) | n/m | 10 (1 Low) | 17 (2 Low) *2 | 02/05/2026 04:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 17 (2 Low) *2 | 02/05/2026 04:00:00 |
| Horley Timeseries Graph |
n/m | 18 (1 Low) | n/m | 9 (1 Low) | 19 (2 Low) *2 | 02/05/2026 04:00:00 |
| Lullington Heath Timeseries Graph |
101 (4 Moderate) | 12 (1 Low) | 18 (1 Low) | 10 (1 Low) | 16 (1 Low) *2 | 01/05/2026 19:30:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 29 (2 Low) *2 | 02/05/2026 04:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
110 (4 Moderate) | n/m | n/m | 9 (1 Low) | 23 (2 Low) *2 | 02/05/2026 04:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 47 (1 Low) | n/m | n/m | n/m | 01/05/2026 07:00:00 |
| Oxford St Ebbes Timeseries Graph |
95 (3 Low) | 15 (1 Low) | n/m | 8 (1 Low) | 17 (2 Low) *2 | 02/05/2026 04:00:00 |
| Portsmouth Timeseries Graph |
86 (3 Low) | 28 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) *2 | 02/05/2026 04:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 41 (1 Low) | n/m | 10 (1 Low) | 21 (2 Low) *2 | 02/05/2026 04:00:00 |
| Reading London Road Timeseries Graph |
n/m | 54 (1 Low) | n/m | n/m | 23 (2 Low) *1 | 01/05/2026 07:00:00 |
| Reading New Town Timeseries Graph |
99 (3 Low) | 44 (1 Low) | n/m | 9 (1 Low) | 19 (2 Low) *2 | 02/05/2026 04:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 02/05/2026 04:00:00 |
| Rochester Stoke Timeseries Graph |
95 (3 Low) | 31 (1 Low) | 3 (1 Low) | 9 (1 Low) | 21 (2 Low) *2 | 01/05/2026 13:15:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 25 (2 Low) *2 | 02/05/2026 04:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 86 (2 Low) | n/m | 10 (1 Low) | 22 (2 Low) *2 | 02/05/2026 04:00:00 |
| Southampton Centre Timeseries Graph |
89 (3 Low) | 36 (1 Low) | 10 (1 Low) | 11 (1 Low) | 23 (2 Low) *2 | 01/05/2026 12:45:00 |
| Storrington Roadside Timeseries Graph |
n/m | 58 (1 Low) | n/m | 11 (1 Low) | 24 (2 Low) *2 | 02/05/2026 04:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | 13 (2 Low) | n/m | 02/05/2026 04:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 22 (2 Low) *2 | 02/05/2026 04:00:00 |
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 |
105 (4 Moderate) | 30 (1 Low) | 3 (1 Low) | 10 (1 Low) | 26 (2 Low) *1 | 30/04/2026 15:15:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 55 (1 Low) | n/m | n/m | 24 (2 Low) *1 | 01/05/2026 09:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 50 (1 Low) | n/m | 13 (2 Low) | 25 (2 Low) *1 | 02/05/2026 01:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
87 (3 Low) | 25 (1 Low) | n/m | n/m | n/m | 01/05/2026 22:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 57 (1 Low) | n/m | n/m | n/m | 01/05/2026 21:00:00 |
| Narberth Timeseries Graph |
93 (3 Low) | 6 (1 Low) | 2 (1 Low) | 10 (1 Low) | 16 (1 Low) *2 | 01/05/2026 14:15:00 |
| Newport Timeseries Graph |
n/m | 29 (1 Low) | n/m | 11 (1 Low) | 27 (2 Low) *2 | 02/05/2026 04:00:00 |
| Port Talbot Margam Timeseries Graph |
94 (3 Low) | 20 (1 Low) | 5 (1 Low) | 9 (1 Low) | 20 (2 Low) *3 | 01/05/2026 06:15:00 |
| Swansea Roadside Timeseries Graph |
n/m | 36 (1 Low) | n/m | 12 (2 Low) | 21 (2 Low) *1 | 02/05/2026 03:00:00 |
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 | 10 (1 Low) | 17 (2 Low) *2 | 02/05/2026 04:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 22/03/2026 17:00:00 |
| Bournemouth Timeseries Graph |
100 (3 Low) | 14 (1 Low) | n/m | 12 (2 Low) | n/m | 02/05/2026 04:00:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 21 (2 Low) *2 | 02/05/2026 04:00:00 |
| Bristol St Paul's Timeseries Graph |
84 (3 Low) | 35 (1 Low) | n/m | 10 (1 Low) | 25 (2 Low) *1 | 02/05/2026 04:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 63 (1 Low) | n/m | 10 (1 Low) | 21 (2 Low) *2 | 02/05/2026 04:00:00 |
| Charlton Mackrell Timeseries Graph |
92 (3 Low) | 14 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 02/05/2026 04:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 02/05/2026 04:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 23 (1 Low) | n/m | 10 (1 Low) | n/m | 02/05/2026 04:00:00 |
| Exeter Roadside Timeseries Graph |
90 (3 Low) | 44 (1 Low) | n/m | n/m | n/m | 01/05/2026 05:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 25 (2 Low) *2 | 02/05/2026 04:00:00 |
| Honiton Timeseries Graph |
91 (3 Low) | 20 (1 Low) | n/m | 11 (1 Low) | 19 (2 Low) *2 | 02/05/2026 03:00:00 |
| Plymouth Centre Timeseries Graph |
89 (3 Low) | 61 (1 Low) | n/m | 18 (2 Low) | 54 (4 Moderate) *2 | 02/05/2026 04:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 31 (1 Low) | n/m | n/m | n/m | 01/05/2026 08:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 22 (2 Low) *1 | 02/05/2026 04:00:00 |
| Swindon Walcot Timeseries Graph |
84 (3 Low) | 20 (1 Low) | n/m | 9 (1 Low) | 20 (2 Low) *2 | 02/05/2026 04:00:00 |
| Yarner Wood Timeseries Graph |
97 (3 Low) | 14 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 02/05/2026 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 |
107 (4 Moderate) | n/m | n/m | n/m | n/m | 01/05/2026 23:00:00 |
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 |
84 (3 Low) | 71 (2 Low) | n/m | 12 (2 Low) | 29 (2 Low) *2 | 02/05/2026 04:00:00 |
| Birmingham Hall Green Timeseries Graph |
106 (4 Moderate) | 40 (1 Low) | n/m | 10 (1 Low) | 26 (2 Low) *2 | 02/05/2026 03:00:00 |
| Birmingham Ladywood Timeseries Graph |
98 (3 Low) | 62 (1 Low) | 3 (1 Low) | 10 (1 Low) | 24 (2 Low) *2 | 01/05/2026 08:00:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 23 (2 Low) *2 | 02/05/2026 04:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
107 (4 Moderate) | 59 (1 Low) | n/m | 12 (2 Low) | 25 (2 Low) *2 | 02/05/2026 01:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 42 (1 Low) | n/m | 13 (2 Low) | n/m | 02/05/2026 04:00:00 |
| Coventry Allesley Timeseries Graph |
99 (3 Low) | 15 (1 Low) | n/m | 9 (1 Low) | 23 (2 Low) *2 | 02/05/2026 04:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 44 (1 Low) | n/m | 10 (1 Low) | 24 (2 Low) *2 | 02/05/2026 04:00:00 |
| Leamington Spa Timeseries Graph |
103 (4 Moderate) | 22 (1 Low) | n/m | 9 (1 Low) | 22 (2 Low) *2 | 02/05/2026 04:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 26 (1 Low) | n/m | 9 (1 Low) | 19 (2 Low) *2 | 02/05/2026 04:00:00 |
| Leominster Timeseries Graph |
76 (3 Low) | 21 (1 Low) | n/m | n/m | n/m | 01/05/2026 05:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 70 (2 Low) | n/m | 12 (2 Low) | 28 (2 Low) *2 | 02/05/2026 04:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 16 (2 Low) | 29 (2 Low) *2 | 02/05/2026 03:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 72 (2 Low) | n/m | 16 (2 Low) | 33 (2 Low) *2 | 02/05/2026 03:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
86 (3 Low) | 29 (1 Low) | n/m | 16 (2 Low) | 33 (2 Low) *2 | 02/05/2026 03:00:00 |
| Telford Hollinswood Timeseries Graph |
91 (3 Low) | 34 (1 Low) | n/m | 11 (1 Low) | 25 (2 Low) *2 | 02/05/2026 04:00:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 24 (2 Low) *2 | 02/05/2026 04:00:00 |
| Walsall Woodlands Timeseries Graph |
104 (4 Moderate) | 37 (1 Low) | n/m | n/m | n/m | 01/05/2026 19:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
90 (3 Low) | 57 (1 Low) | n/m | n/m | n/m | 01/05/2026 19:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 22 (2 Low) *2 | 02/05/2026 04:00:00 |
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 |
104 (4 Moderate) | 33 (1 Low) | 7 (1 Low) | 12 (2 Low) | 28 (2 Low) *2 | 01/05/2026 09:00:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 64 (1 Low) | n/m | n/m | n/m | 01/05/2026 09:00:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 39 (3 Low) *2 | 02/05/2026 01:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
91 (3 Low) | 41 (1 Low) | n/m | 13 (2 Low) | 28 (2 Low) *2 | 02/05/2026 01:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 56 (1 Low) | n/m | 12 (2 Low) | n/m | 02/05/2026 04:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 23 (2 Low) *2 | 02/05/2026 04:00:00 |
| High Muffles Timeseries Graph |
106 (4 Moderate) | 7 (1 Low) | n/m | 8 (1 Low) | 23 (2 Low) *2 | 02/05/2026 02:00:00 |
| Hull Freetown Timeseries Graph |
94 (3 Low) | 41 (1 Low) | 3 (1 Low) | 12 (2 Low) | 28 (2 Low) *2 | 01/05/2026 10:15:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 55 (1 Low) | n/m | 9 (1 Low) | 22 (2 Low) *2 | 02/05/2026 04:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
95 (3 Low) | 37 (1 Low) | n/m | 11 (1 Low) | 26 (2 Low) *2 | 02/05/2026 04:00:00 |
| Leeds Centre Timeseries Graph |
92 (3 Low) | 48 (1 Low) | 7 (1 Low) | 14 (2 Low) | 30 (2 Low) *2 | 01/05/2026 09:45:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 56 (1 Low) | n/m | 17 (2 Low) | 35 (3 Low) *1 | 02/05/2026 04:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 28 (2 Low) *2 | 02/05/2026 04:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 49 (1 Low) | 6 (1 Low) | 13 (2 Low) | 36 (3 Low) *1 | 01/05/2026 20:45:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 77 (2 Low) | n/m | 16 (2 Low) | n/m | 02/05/2026 04:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
113 (4 Moderate) | 48 (1 Low) | n/m | 14 (2 Low) | 29 (2 Low) *2 | 02/05/2026 04:00:00 |
| Sheffield Tinsley Timeseries Graph |
97 (3 Low) | 46 (1 Low) | n/m | 13 (2 Low) | 28 (2 Low) *2 | 02/05/2026 04:00:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 29 (2 Low) *2 | 02/05/2026 04:00:00 |
| York Bootham Timeseries Graph |
100 (3 Low) | 20 (1 Low) | n/m | 11 (1 Low) | 26 (2 Low) *1 | 02/05/2026 04:00:00 |
| York Fishergate Timeseries Graph |
n/m | 29 (1 Low) | n/m | 8 (1 Low) | 33 (2 Low) *1 | 02/05/2026 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