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 11am 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 | 9 (1 Low) | 15 (1 Low) *2 | 02/05/2026 11:00:00 |
| 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 | 19 (1 Low) | n/m | n/m | n/m | 01/05/2026 17:00:00 |
| 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) | 10 (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 | 13 (2 Low) | 26 (2 Low) *2 | 02/05/2026 11:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 77 (2 Low) | n/m | n/m | n/m | 01/05/2026 24:00: |
| Glasgow Townhead Timeseries Graph |
87 (3 Low) | 37 (1 Low) | n/m | 12 (2 Low) | 22 (2 Low) *2 | 02/05/2026 11:00:00 |
| Grangemouth Timeseries Graph |
n/m | 34 (1 Low) | 5 (1 Low) | 11 (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 | 37 (1 Low) | n/m | 11 (1 Low) | 21 (2 Low) *2 | 02/05/2026 11:00:00 |
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) | 22 (1 Low) | n/m | 13 (2 Low) | 24 (2 Low) *2 | 02/05/2026 11:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 29 (1 Low) | n/m | 14 (2 Low) | 27 (2 Low) *2 | 02/05/2026 11:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 48 (1 Low) | n/m | 14 (2 Low) | n/m | 02/05/2026 06:00:00 |
| Derby Stockbrook Park Timeseries Graph |
102 (4 Moderate) | n/m | n/m | 12 (2 Low) | 26 (2 Low) *2 | 02/05/2026 06:00:00 |
| Ladybower Timeseries Graph |
118 (4 Moderate) | 14 (1 Low) | 6 (1 Low) | 18 (2 Low) | 28 (2 Low) *2 | 01/05/2026 14:00:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 54 (1 Low) | n/m | 13 (2 Low) | 27 (2 Low) *2 | 02/05/2026 11:00:00 |
| Leicester University Timeseries Graph |
109 (4 Moderate) | 29 (1 Low) | n/m | 12 (2 Low) | 22 (2 Low) *2 | 02/05/2026 11:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 72 (2 Low) | n/m | n/m | n/m | 01/05/2026 20:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 23 (2 Low) *2 | 02/05/2026 05:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | 27 (2 Low) *2 | 02/05/2026 11:00:00 |
| Northampton Spring Park Timeseries Graph |
110 (4 Moderate) | 19 (1 Low) | n/m | 16 (2 Low) | n/m | 02/05/2026 10:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 26 (2 Low) *2 | 02/05/2026 06:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
104 (4 Moderate) | 15 (1 Low) | 2 (1 Low) | 15 (2 Low) | 29 (2 Low) *2 | 01/05/2026 13:00:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 35 (1 Low) | n/m | 14 (2 Low) | 28 (2 Low) *2 | 02/05/2026 07:00:00 |
| Tallington Timeseries Graph |
124 (5 Moderate) | n/m | n/m | 12 (2 Low) | 26 (2 Low) *2 | 02/05/2026 07:00:00 |
| Toft Newton Timeseries Graph |
128 (5 Moderate) | 14 (1 Low) | n/m | 11 (1 Low) | 24 (2 Low) *2 | 02/05/2026 11:00:00 |
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 | 21 (1 Low) | n/m | 12 (2 Low) | 21 (2 Low) *2 | 02/05/2026 11:00:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 23 (2 Low) *2 | 02/05/2026 11:00:00 |
| 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 | 37 (1 Low) | n/m | 11 (1 Low) | n/m | 02/05/2026 11:00:00 |
| Norwich Lakenfields Timeseries Graph |
102 (4 Moderate) | 14 (1 Low) | n/m | 11 (1 Low) | 20 (2 Low) *2 | 02/05/2026 11:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 28 (2 Low) *2 | 02/05/2026 11:00:00 |
| Sibton Timeseries Graph |
100 (3 Low) | n/m | n/m | 12 (2 Low) | 21 (2 Low) *2 | 02/05/2026 11:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 19 (2 Low) *2 | 02/05/2026 11:00:00 |
| Southend-on-Sea Timeseries Graph |
100 (3 Low) | 24 (1 Low) | n/m | 11 (1 Low) | 21 (2 Low) *2 | 02/05/2026 11:00:00 |
| St Osyth Timeseries Graph |
102 (4 Moderate) | 18 (1 Low) | n/m | 12 (2 Low) | 26 (2 Low) *2 | 02/05/2026 11:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 20 (1 Low) | n/m | 13 (2 Low) | 22 (2 Low) *1 | 02/05/2026 11:00:00 |
| Stevenage St Georges Way South Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | n/m | 02/05/2026 11:00:00 |
| Thurrock Timeseries Graph |
n/a | n/a | 2 (1 Low) | 11 (1 Low) | 22 (2 Low) *2 | 02/05/2026 05:15:00 |
| Weybourne Timeseries Graph |
112 (4 Moderate) | n/m | n/m | 12 (2 Low) | 21 (2 Low) *2 | 02/05/2026 11:00:00 |
| Wicken Fen Timeseries Graph |
105 (4 Moderate) | 10 (1 Low) | 2 (1 Low) | 10 (1 Low) | 22 (2 Low) *2 | 01/05/2026 15:45:00 |
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 | 49 (1 Low) | n/m | 14 (2 Low) | 32 (2 Low) *1 | 02/05/2026 11:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 43 (3 Low) *1 | 02/05/2026 11:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 33 (1 Low) | n/m | n/m | n/m | 01/05/2026 12:00:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | n/m | 02/05/2026 11:00:00 |
| London Bexley Timeseries Graph |
n/m | 24 (1 Low) | n/m | 9 (1 Low) | 20 (2 Low) *2 | 02/05/2026 11:00:00 |
| London Bloomsbury Timeseries Graph |
99 (3 Low) | 33 (1 Low) | 2 (1 Low) | 11 (1 Low) | 23 (2 Low) *2 | 01/05/2026 11:15:00 |
| London Farringdon Street Timeseries Graph |
n/m | 40 (1 Low) | n/m | 14 (2 Low) | n/m | 02/05/2026 11:00:00 |
| London Haringey Priory Park South Timeseries Graph |
109 (4 Moderate) | 30 (1 Low) | n/m | 11 (1 Low) | 22 (2 Low) *2 | 02/05/2026 11:00:00 |
| London Harlington Timeseries Graph |
103 (4 Moderate) | 37 (1 Low) | n/m | 9 (1 Low) | 19 (2 Low) *2 | 02/05/2026 09:00:00 |
| London Hillingdon Timeseries Graph |
89 (3 Low) | 45 (1 Low) | n/m | 13 (2 Low) | 27 (2 Low) *2 | 02/05/2026 11:00:00 |
| London Honor Oak Park Timeseries Graph |
117 (4 Moderate) | n/m | n/m | 10 (1 Low) | 17 (2 Low) *2 | 02/05/2026 11:00:00 |
| London Marylebone Road Timeseries Graph |
70 (3 Low) | 80 (2 Low) | 6 (1 Low) | 14 (2 Low) | 43 (3 Low) *1 | 01/05/2026 11:15:00 |
| London N. Kensington Timeseries Graph |
108 (4 Moderate) | 34 (1 Low) | 3 (1 Low) | 11 (1 Low) | 19 (2 Low) *2 | 01/05/2026 15:45:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 17 (2 Low) *2 | 02/05/2026 11:00:00 |
| 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) | 26 (1 Low) | n/m | n/m | n/m | 01/05/2026 20:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 30 (1 Low) | n/m | n/m | 31 (2 Low) *1 | 01/05/2026 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 |
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 | 6 (1 Low) | 15 (1 Low) *2 | 02/05/2026 11:00:00 |
| Lerwick Timeseries Graph |
95 (3 Low) | n/m | n/m | n/m | n/m | 01/05/2026 12:00:00 |
| 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) | 29 (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 | 8 (1 Low) | 15 (1 Low) *2 | 02/05/2026 11:00:00 |
| Middlesbrough Timeseries Graph |
111 (4 Moderate) | 25 (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) | 28 (1 Low) | n/m | 15 (2 Low) | 32 (2 Low) *1 | 02/05/2026 05:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 64 (1 Low) | n/m | 12 (2 Low) | 26 (2 Low) *2 | 02/05/2026 07:00:00 |
| 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 | 16 (1 Low) | n/m | 10 (1 Low) | n/m | 02/05/2026 06:00:00 |
| 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 | 15 (2 Low) | 29 (2 Low) *2 | 02/05/2026 07:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 28 (1 Low) | n/m | 13 (2 Low) | n/m | 02/05/2026 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 |
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 | 38 (1 Low) | n/m | n/m | n/m | 01/05/2026 19:00:00 |
| 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 |
87 (3 Low) | 8 (1 Low) | n/m | n/m | n/m | 02/05/2026 07:00:00 |
| 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 | 29 (1 Low) | n/m | 13 (2 Low) | n/m | 02/05/2026 01:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 31 (1 Low) | n/m | n/m | n/m | 01/05/2026 19:00:00 |
| Blackburn Audley Park Timeseries Graph |
85 (3 Low) | n/m | n/m | 13 (2 Low) | 23 (2 Low) *2 | 02/05/2026 06:00:00 |
| 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 | 23 (1 Low) | n/m | n/m | 34 (3 Low) *1 | 01/05/2026 16:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 25 (1 Low) | n/m | 12 (2 Low) | 25 (2 Low) *1 | 02/05/2026 07:00:00 |
| Crewe Coppenhall Timeseries Graph |
86 (3 Low) | 22 (1 Low) | n/m | 14 (2 Low) | 27 (2 Low) *2 | 02/05/2026 04:00:00 |
| Glazebury Timeseries Graph |
90 (3 Low) | 25 (1 Low) | n/m | 13 (2 Low) | 24 (2 Low) *2 | 02/05/2026 06:00:00 |
| Liverpool Speke Timeseries Graph |
76 (3 Low) | 51 (1 Low) | 74 (1 Low) | 17 (2 Low) | 30 (2 Low) *1 | 02/05/2026 08:45:00 |
| 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) | 23 (1 Low) | 3 (1 Low) | 19 (2 Low) | 34 (3 Low) *2 | 01/05/2026 16:00:00 |
| Manchester Sharston Timeseries Graph |
93 (3 Low) | 24 (1 Low) | n/m | 15 (2 Low) | 27 (2 Low) *2 | 02/05/2026 11:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | n/m | 02/05/2026 06:00:00 |
| Preston Timeseries Graph |
84 (3 Low) | 27 (1 Low) | n/m | 13 (2 Low) | 24 (2 Low) *2 | 02/05/2026 06:00:00 |
| Salford Eccles Timeseries Graph |
97 (3 Low) | 33 (1 Low) | n/m | 16 (2 Low) | 34 (3 Low) *2 | 02/05/2026 05:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 51 (1 Low) | n/m | n/m | n/m | 01/05/2026 17:00:00 |
| 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 | 20 (1 Low) | n/m | 12 (2 Low) | 26 (2 Low) *1 | 02/05/2026 11:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 46 (1 Low) | n/m | n/m | n/m | 01/05/2026 14:00:00 |
| 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 |
77 (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 | 26 (1 Low) | n/m | n/m | n/m | 01/05/2026 22:00:00 |
| 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) | 27 (1 Low) | 2 (1 Low) | 17 (2 Low) | 28 (2 Low) *2 | 01/05/2026 12:15:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 58 (1 Low) | n/m | n/m | 35 (3 Low) *1 | 01/05/2026 16:00:00 |
| Derry Rosemount Timeseries Graph |
86 (3 Low) | 10 (1 Low) | 2 (1 Low) | 8 (1 Low) | 23 (2 Low) *1 | 02/05/2026 02:45:00 |
| 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 | 38 (1 Low) | n/m | n/m | n/m | 01/05/2026 13:00:00 |
| 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) | 8 (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 | 11 (1 Low) | n/m | 02/05/2026 11:00:00 |
| Brighton Preston Park Timeseries Graph |
86 (3 Low) | 23 (1 Low) | n/m | 12 (2 Low) | 19 (2 Low) *2 | 02/05/2026 11:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 21 (1 Low) | n/m | 9 (1 Low) | 28 (2 Low) *1 | 02/05/2026 09:00:00 |
| Chilbolton Observatory Timeseries Graph |
100 (3 Low) | 12 (1 Low) | 3 (1 Low) | 11 (1 Low) | 19 (2 Low) *2 | 01/05/2026 13:30:00 |
| Eastbourne Timeseries Graph |
87 (3 Low) | 11 (1 Low) | n/m | 11 (1 Low) | 18 (2 Low) *2 | 02/05/2026 11:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 17 (2 Low) *2 | 02/05/2026 11:00:00 |
| Horley Timeseries Graph |
n/m | 29 (1 Low) | n/m | 13 (2 Low) | 21 (2 Low) *2 | 02/05/2026 11:00:00 |
| Lullington Heath Timeseries Graph |
93 (3 Low) | 12 (1 Low) | 18 (1 Low) | 12 (2 Low) | 17 (2 Low) *2 | 01/05/2026 19:30:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | 29 (2 Low) *2 | 02/05/2026 11:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
110 (4 Moderate) | n/m | n/m | 11 (1 Low) | 23 (2 Low) *2 | 02/05/2026 11:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/m | n/m | 01/05/2026 13:00:00 |
| Oxford St Ebbes Timeseries Graph |
95 (3 Low) | 24 (1 Low) | n/m | 11 (1 Low) | 18 (2 Low) *2 | 02/05/2026 11:00:00 |
| Portsmouth Timeseries Graph |
86 (3 Low) | 28 (1 Low) | n/m | 13 (2 Low) | 20 (2 Low) *2 | 02/05/2026 11:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 41 (1 Low) | n/m | 13 (2 Low) | 21 (2 Low) *2 | 02/05/2026 11:00:00 |
| Reading London Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | 23 (2 Low) *1 | 01/05/2026 12:00:00 |
| Reading New Town Timeseries Graph |
99 (3 Low) | 13 (1 Low) | n/m | 11 (1 Low) | 19 (2 Low) *2 | 02/05/2026 11:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | n/m | 02/05/2026 11:00:00 |
| Rochester Stoke Timeseries Graph |
95 (3 Low) | 31 (1 Low) | 3 (1 Low) | 12 (2 Low) | 21 (2 Low) *2 | 01/05/2026 13:15:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 25 (2 Low) *2 | 02/05/2026 11:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 86 (2 Low) | n/m | 13 (2 Low) | 22 (2 Low) *2 | 02/05/2026 11:00:00 |
| Southampton Centre Timeseries Graph |
87 (3 Low) | 90 (2 Low) | 10 (1 Low) | 16 (2 Low) | 25 (2 Low) *2 | 01/05/2026 12:45:00 |
| Storrington Roadside Timeseries Graph |
n/m | 26 (1 Low) | n/m | 15 (2 Low) | 24 (2 Low) *2 | 02/05/2026 11:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 28 (1 Low) | n/m | 15 (2 Low) | n/m | 02/05/2026 09:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 22 (2 Low) *2 | 02/05/2026 11:00:00 |
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 | 30 (1 Low) | n/m | n/m | 24 (2 Low) *1 | 02/05/2026 10:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 50 (1 Low) | n/m | 14 (2 Low) | 25 (2 Low) *1 | 02/05/2026 03:00:00 |
| 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) | 5 (1 Low) | 2 (1 Low) | 11 (1 Low) | 17 (2 Low) *2 | 01/05/2026 14:15:00 |
| Newport Timeseries Graph |
n/m | 26 (1 Low) | n/m | 12 (2 Low) | 27 (2 Low) *2 | 02/05/2026 11:00:00 |
| Port Talbot Margam Timeseries Graph |
91 (3 Low) | 20 (1 Low) | 1 (1 Low) | 9 (1 Low) | 20 (2 Low) *3 | 01/05/2026 11:15:00 |
| Swansea Roadside Timeseries Graph |
n/m | 22 (1 Low) | n/m | 12 (2 Low) | 21 (2 Low) *1 | 02/05/2026 07:00:00 |
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 11:00:00 |
| 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) | 11 (1 Low) | n/m | 14 (2 Low) | n/m | 02/05/2026 11:00:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 21 (2 Low) *2 | 02/05/2026 08:00:00 |
| Bristol St Paul's Timeseries Graph |
84 (3 Low) | 56 (1 Low) | n/m | 12 (2 Low) | 25 (2 Low) *1 | 02/05/2026 10:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 54 (1 Low) | n/m | 11 (1 Low) | 21 (2 Low) *2 | 02/05/2026 11:00:00 |
| Charlton Mackrell Timeseries Graph |
92 (3 Low) | 11 (1 Low) | n/m | 11 (1 Low) | 17 (2 Low) *2 | 02/05/2026 11:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | n/m | 02/05/2026 10:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 15 (1 Low) | n/m | 12 (2 Low) | n/m | 02/05/2026 11:00:00 |
| Exeter Roadside Timeseries Graph |
76 (3 Low) | 38 (1 Low) | n/m | n/m | n/m | 01/05/2026 24:00: |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | 25 (2 Low) *2 | 02/05/2026 11:00:00 |
| Honiton Timeseries Graph |
90 (3 Low) | 13 (1 Low) | n/m | 11 (1 Low) | 19 (2 Low) *2 | 02/05/2026 11:00:00 |
| Plymouth Centre Timeseries Graph |
89 (3 Low) | 61 (1 Low) | n/m | 19 (2 Low) | 55 (4 Moderate) *2 | 02/05/2026 08:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 01/05/2026 24:00: |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 23 (2 Low) *1 | 02/05/2026 11:00:00 |
| Swindon Walcot Timeseries Graph |
84 (3 Low) | 12 (1 Low) | n/m | 11 (1 Low) | 20 (2 Low) *2 | 02/05/2026 11:00:00 |
| Yarner Wood Timeseries Graph |
97 (3 Low) | 12 (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) | 35 (1 Low) | n/m | 12 (2 Low) | 29 (2 Low) *2 | 02/05/2026 11:00:00 |
| Birmingham Hall Green Timeseries Graph |
106 (4 Moderate) | 16 (1 Low) | n/m | 11 (1 Low) | 26 (2 Low) *2 | 02/05/2026 11:00:00 |
| Birmingham Ladywood Timeseries Graph |
69 (3 Low) | 18 (1 Low) | 2 (1 Low) | 11 (1 Low) | 24 (2 Low) *2 | 01/05/2026 11:15:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 23 (2 Low) *2 | 02/05/2026 11:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
107 (4 Moderate) | 31 (1 Low) | n/m | 12 (2 Low) | 25 (2 Low) *2 | 02/05/2026 01:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 25 (1 Low) | n/m | 14 (2 Low) | n/m | 02/05/2026 11:00:00 |
| Coventry Allesley Timeseries Graph |
99 (3 Low) | 11 (1 Low) | n/m | 11 (1 Low) | 23 (2 Low) *2 | 02/05/2026 11:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 41 (1 Low) | n/m | 11 (1 Low) | 24 (2 Low) *2 | 02/05/2026 11:00:00 |
| Leamington Spa Timeseries Graph |
103 (4 Moderate) | 22 (1 Low) | n/m | 12 (2 Low) | 22 (2 Low) *2 | 02/05/2026 11:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | 12 (2 Low) | 19 (2 Low) *2 | 02/05/2026 11:00:00 |
| Leominster Timeseries Graph |
71 (3 Low) | 10 (1 Low) | n/m | n/m | n/m | 01/05/2026 16:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 37 (1 Low) | n/m | 12 (2 Low) | 28 (2 Low) *2 | 02/05/2026 11:00:00 |
| 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 |
81 (3 Low) | 29 (1 Low) | n/m | 16 (2 Low) | 33 (2 Low) *2 | 02/05/2026 10:00:00 |
| Telford Hollinswood Timeseries Graph |
91 (3 Low) | 16 (1 Low) | n/m | 11 (1 Low) | 25 (2 Low) *2 | 02/05/2026 11:00:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 24 (2 Low) *2 | 02/05/2026 11:00:00 |
| Walsall Woodlands Timeseries Graph |
104 (4 Moderate) | 19 (1 Low) | n/m | n/m | n/m | 01/05/2026 19:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
90 (3 Low) | 21 (1 Low) | n/m | n/m | n/m | 01/05/2026 19:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 22 (2 Low) *2 | 02/05/2026 11:00:00 |
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) | 19 (1 Low) | 4 (1 Low) | 12 (2 Low) | 28 (2 Low) *2 | 01/05/2026 20:15:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 49 (1 Low) | n/m | n/m | n/m | 01/05/2026 17:00:00 |
| 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) | 18 (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 | 39 (1 Low) | n/m | 12 (2 Low) | n/m | 02/05/2026 07:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 23 (2 Low) *2 | 02/05/2026 05:00:00 |
| 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 11:15:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 55 (1 Low) | n/m | 10 (1 Low) | 22 (2 Low) *2 | 02/05/2026 07:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
95 (3 Low) | 23 (1 Low) | n/m | 12 (2 Low) | 26 (2 Low) *2 | 02/05/2026 11:00:00 |
| Leeds Centre Timeseries Graph |
92 (3 Low) | 30 (1 Low) | 6 (1 Low) | 14 (2 Low) | 30 (2 Low) *2 | 01/05/2026 11:30:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 39 (1 Low) | n/m | 17 (2 Low) | 35 (3 Low) *1 | 02/05/2026 06:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 28 (2 Low) *2 | 02/05/2026 08:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 22 (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 | 42 (1 Low) | n/m | 17 (2 Low) | n/m | 02/05/2026 08:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
113 (4 Moderate) | 21 (1 Low) | n/m | 16 (2 Low) | 29 (2 Low) *2 | 02/05/2026 09:00:00 |
| Sheffield Tinsley Timeseries Graph |
97 (3 Low) | 30 (1 Low) | n/m | 14 (2 Low) | 28 (2 Low) *2 | 02/05/2026 08:00:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 29 (2 Low) *2 | 02/05/2026 08:00:00 |
| York Bootham Timeseries Graph |
100 (3 Low) | 18 (1 Low) | n/m | 11 (1 Low) | 26 (2 Low) *1 | 02/05/2026 04:00:00 |
| York Fishergate Timeseries Graph |
n/m | 27 (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