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 11pm Mon 27th 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 |
82 (3 Low) | n/m | n/m | 9 (1 Low) | 11 (1 Low) *2 | 27/04/2026 09:00:00 |
| Bush Estate Timeseries Graph |
92 (3 Low) | 5 (1 Low) | n/m | n/m | n/m | 27/04/2026 20:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 31 (1 Low) | n/m | n/m | n/m | 27/04/2026 07:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 41 (1 Low) | n/m | n/m | n/m | 27/04/2026 10:00:00 |
| Edinburgh St Leonards Timeseries Graph |
83 (3 Low) | 17 (1 Low) | 2 (1 Low) | 9 (1 Low) | 12 (1 Low) *2 | 27/04/2026 15:45:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 31 (1 Low) | n/m | n/m | n/m | 27/04/2026 08:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 36 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *2 | 27/04/2026 01:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 72 (2 Low) | n/m | n/m | n/m | 27/04/2026 21:00:00 |
| Glasgow Townhead Timeseries Graph |
96 (3 Low) | 30 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 27/04/2026 01:00:00 |
| Grangemouth Timeseries Graph |
n/m | 21 (1 Low) | 2 (1 Low) | 5 (1 Low) | 12 (1 Low) *1 | 27/04/2026 08:30:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 23 (1 Low) | n/m | n/m | n/m | 27/04/2026 09:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 40 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 27/04/2026 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 |
94 (3 Low) | 11 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 27/04/2026 12:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 19 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) *2 | 27/04/2026 12:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 52 (1 Low) | n/m | 12 (2 Low) | n/m | 27/04/2026 10:00:00 |
| Derby Stockbrook Park Timeseries Graph |
94 (3 Low) | n/m | n/m | 11 (1 Low) | 17 (2 Low) *2 | 27/04/2026 10:00:00 |
| Ladybower Timeseries Graph |
105 (4 Moderate) | 8 (1 Low) | 1 (1 Low) | 11 (1 Low) | 15 (1 Low) *2 | 27/04/2026 02:45:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 72 (2 Low) | n/m | 11 (1 Low) | 21 (2 Low) *2 | 27/04/2026 20:00:00 |
| Leicester University Timeseries Graph |
99 (3 Low) | 40 (1 Low) | n/m | 10 (1 Low) | 17 (2 Low) *2 | 27/04/2026 20:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 74 (2 Low) | n/m | n/m | n/m | 27/04/2026 13:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 18 (2 Low) *2 | 27/04/2026 19:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 19 (2 Low) *2 | 27/04/2026 12:00:00 |
| Northampton Spring Park Timeseries Graph |
105 (4 Moderate) | 33 (1 Low) | n/m | 15 (2 Low) | n/m | 27/04/2026 01:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 17 (2 Low) *2 | 27/04/2026 14:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
95 (3 Low) | 35 (1 Low) | 2 (1 Low) | 13 (2 Low) | 20 (2 Low) *2 | 27/04/2026 17:45:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 60 (1 Low) | n/m | 13 (2 Low) | 26 (2 Low) *2 | 27/04/2026 15:00:00 |
| Tallington Timeseries Graph |
102 (4 Moderate) | n/m | n/m | 11 (1 Low) | 17 (2 Low) *2 | 27/04/2026 23:00:00 |
| Toft Newton Timeseries Graph |
97 (3 Low) | 9 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) *2 | 27/04/2026 22:00:00 |
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 | 12 (2 Low) | 19 (2 Low) *2 | 27/04/2026 22:00:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 19 (2 Low) *2 | 27/04/2026 23:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 35 (1 Low) | n/m | n/m | n/m | 27/04/2026 14:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 102 (2 Low) | n/m | 14 (2 Low) | n/m | 27/04/2026 20:00:00 |
| Norwich Lakenfields Timeseries Graph |
97 (3 Low) | 18 (1 Low) | n/m | 11 (1 Low) | 16 (1 Low) *2 | 27/04/2026 23:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 19 (2 Low) *2 | 27/04/2026 23:00:00 |
| Sibton Timeseries Graph |
93 (3 Low) | n/m | n/m | 8 (1 Low) | 13 (1 Low) *2 | 27/04/2026 23:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 13 (1 Low) *2 | 27/04/2026 11:00:00 |
| Southend-on-Sea Timeseries Graph |
93 (3 Low) | 24 (1 Low) | n/m | 11 (1 Low) | 16 (1 Low) *2 | 27/04/2026 11:00:00 |
| St Osyth Timeseries Graph |
118 (4 Moderate) | 10 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 27/04/2026 11:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 45 (1 Low) | n/m | 14 (2 Low) | 23 (2 Low) *1 | 27/04/2026 01:00:00 |
| Thurrock Timeseries Graph |
n/a | n/a | 8 (1 Low) | 12 (2 Low) | 19 (2 Low) *2 | 27/04/2026 16:15:00 |
| Weybourne Timeseries Graph |
92 (3 Low) | n/m | n/m | 11 (1 Low) | 17 (2 Low) *2 | 27/04/2026 23:00:00 |
| Wicken Fen Timeseries Graph |
97 (3 Low) | 8 (1 Low) | 2 (1 Low) | 12 (2 Low) | 18 (2 Low) *2 | 27/04/2026 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 | 47 (1 Low) | n/m | 14 (2 Low) | 31 (2 Low) *1 | 27/04/2026 05:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 52 (4 Moderate) *1 | 27/04/2026 23:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 43 (1 Low) | n/m | n/m | n/m | 27/04/2026 08:00:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | n/m | 27/04/2026 22:00:00 |
| London Bexley Timeseries Graph |
n/m | 46 (1 Low) | n/m | 10 (1 Low) | 17 (2 Low) *2 | 27/04/2026 04:00:00 |
| London Bloomsbury Timeseries Graph |
106 (4 Moderate) | 41 (1 Low) | 2 (1 Low) | 13 (2 Low) | 20 (2 Low) *2 | 27/04/2026 07:45:00 |
| London Farringdon Street Timeseries Graph |
n/m | 39 (1 Low) | n/m | 15 (2 Low) | n/m | 27/04/2026 05:00:00 |
| London Haringey Priory Park South Timeseries Graph |
123 (5 Moderate) | 31 (1 Low) | n/m | 12 (2 Low) | 18 (2 Low) *2 | 27/04/2026 05:00:00 |
| London Harlington Timeseries Graph |
119 (4 Moderate) | 38 (1 Low) | n/m | 11 (1 Low) | 18 (2 Low) *2 | 27/04/2026 22:00:00 |
| London Hillingdon Timeseries Graph |
124 (5 Moderate) | 36 (1 Low) | n/m | 14 (2 Low) | 24 (2 Low) *2 | 27/04/2026 22:00:00 |
| London Honor Oak Park Timeseries Graph |
125 (5 Moderate) | n/m | n/m | 11 (1 Low) | 18 (2 Low) *2 | 27/04/2026 12:00:00 |
| London Marylebone Road Timeseries Graph |
107 (4 Moderate) | 42 (1 Low) | 3 (1 Low) | 14 (2 Low) | 24 (2 Low) *1 | 27/04/2026 13:45:00 |
| London N. Kensington Timeseries Graph |
125 (5 Moderate) | 30 (1 Low) | 3 (1 Low) | 12 (2 Low) | 18 (2 Low) *2 | 27/04/2026 09:45:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 17 (2 Low) *2 | 27/04/2026 01:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 17 (2 Low) *2 | 27/04/2026 05:00:00 |
| London Westminster Timeseries Graph |
101 (4 Moderate) | 41 (1 Low) | n/m | n/m | n/m | 27/04/2026 19:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 62 (1 Low) | n/m | n/m | 35 (3 Low) *1 | 27/04/2026 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 |
77 (3 Low) | 8 (1 Low) | n/m | n/m | n/m | 26/04/2026 24:00: |
| Inverness Timeseries Graph |
n/m | 19 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 27/04/2026 10:00:00 |
| Lerwick Timeseries Graph |
88 (3 Low) | n/m | n/m | n/m | n/m | 27/04/2026 19:00:00 |
| Strathvaich Timeseries Graph |
101 (4 Moderate) | n/m | n/m | n/m | n/m | 27/04/2026 18:00:00 |
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 |
86 (3 Low) | 29 (1 Low) | n/m | 17 (2 Low) | 34 (3 Low) *2 | 27/04/2026 10:00:00 |
| Kielder Water Timeseries Graph |
88 (3 Low) | n/m | n/m | 8 (1 Low) | 11 (1 Low) *2 | 27/04/2026 05:00:00 |
| Middlesbrough Timeseries Graph |
82 (3 Low) | 24 (1 Low) | 1 (1 Low) | 10 (1 Low) | 22 (2 Low) *1 | 27/04/2026 10:45:00 |
| Newcastle Centre Timeseries Graph |
75 (3 Low) | 20 (1 Low) | n/m | 15 (2 Low) | 24 (2 Low) *1 | 27/04/2026 10:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 28 (1 Low) | n/m | 15 (2 Low) | 22 (2 Low) *2 | 27/04/2026 10:00:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | 30 (2 Low) *2 | 27/04/2026 11:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 39 (1 Low) | n/m | 12 (2 Low) | n/m | 27/04/2026 20:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 23 (1 Low) | n/m | n/a | 24 (2 Low) *1 | 24/04/2026 09:00:00 |
| Sunderland Silksworth Timeseries Graph |
86 (3 Low) | 22 (1 Low) | n/m | 14 (2 Low) | 22 (2 Low) *2 | 27/04/2026 10:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 42 (1 Low) | n/m | 13 (2 Low) | n/m | 27/04/2026 10:00:00 |
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 |
77 (3 Low) | 35 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) *2 | 27/04/2026 10:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 65 (1 Low) | n/m | n/m | n/m | 26/04/2026 24:00: |
| Dundee Mains Loan Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/m | n/m | 27/04/2026 21:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 34 (1 Low) | n/m | n/m | n/m | 27/04/2026 02:00:00 |
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 |
91 (3 Low) | 7 (1 Low) | n/m | n/m | n/m | 27/04/2026 04:00:00 |
| Wrexham Timeseries Graph |
n/m | 41 (1 Low) | 3 (1 Low) | 17 (2 Low) | 24 (2 Low) *2 | 26/04/2026 23:15:00 |
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 | 25 (1 Low) | n/m | 18 (2 Low) | n/m | 27/04/2026 07:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | n/m | 27/04/2026 22:00:00 |
| Blackburn Audley Park Timeseries Graph |
76 (3 Low) | n/m | n/m | 16 (2 Low) | 22 (2 Low) *2 | 27/04/2026 14:00:00 |
| Blackpool Marton Timeseries Graph |
95 (3 Low) | 12 (1 Low) | n/m | 17 (2 Low) | 23 (2 Low) *2 | 27/04/2026 09:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 17 (2 Low) | n/m | 27/04/2026 09:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | 25 (2 Low) *1 | 27/04/2026 23:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 20 (1 Low) | n/m | 13 (2 Low) | 24 (2 Low) *1 | 27/04/2026 11:00:00 |
| Crewe Coppenhall Timeseries Graph |
94 (3 Low) | 19 (1 Low) | n/m | 18 (2 Low) | 25 (2 Low) *2 | 27/04/2026 12:00:00 |
| Glazebury Timeseries Graph |
88 (3 Low) | 12 (1 Low) | n/m | 15 (2 Low) | 21 (2 Low) *2 | 27/04/2026 13:00:00 |
| Liverpool Speke Timeseries Graph |
81 (3 Low) | 44 (1 Low) | 3 (1 Low) | 20 (2 Low) | 28 (2 Low) *1 | 27/04/2026 11:15:00 |
| Liverpool Thirlmere Park Timeseries Graph |
81 (3 Low) | n/m | n/m | 19 (2 Low) | 25 (2 Low) *2 | 27/04/2026 08:00:00 |
| Manchester Piccadilly Timeseries Graph |
72 (3 Low) | 31 (1 Low) | 2 (1 Low) | 19 (2 Low) | 32 (2 Low) *2 | 26/04/2026 23:15:00 |
| Manchester Sharston Timeseries Graph |
87 (3 Low) | 31 (1 Low) | n/m | 17 (2 Low) | 24 (2 Low) *2 | 27/04/2026 13:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | n/m | 27/04/2026 12:00:00 |
| Preston Timeseries Graph |
82 (3 Low) | 36 (1 Low) | n/m | 17 (2 Low) | 23 (2 Low) *2 | 27/04/2026 12:00:00 |
| Salford Eccles Timeseries Graph |
88 (3 Low) | 25 (1 Low) | n/m | 20 (2 Low) | 29 (2 Low) *2 | 27/04/2026 14:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 41 (1 Low) | n/m | n/m | n/m | 27/04/2026 07:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | 23 (2 Low) *1 | 27/04/2026 09:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | n/m | 27/04/2026 12:00:00 |
| Warrington Timeseries Graph |
n/m | 22 (1 Low) | n/m | 13 (2 Low) | 21 (2 Low) *1 | 27/04/2026 02:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | n/m | 27/04/2026 23:00:00 |
| Wigan Centre Timeseries Graph |
86 (3 Low) | 13 (1 Low) | n/m | 18 (2 Low) | 26 (2 Low) *2 | 27/04/2026 12:00:00 |
| Wirral Tranmere Timeseries Graph |
89 (3 Low) | 22 (1 Low) | n/m | 16 (2 Low) | 21 (2 Low) *2 | 27/04/2026 07:00:00 |
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 | 33 (1 Low) | n/m | n/m | 28 (2 Low) *1 | 27/04/2026 08:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 32 (1 Low) | n/m | n/m | n/m | 27/04/2026 08:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 24 (1 Low) | 11 (1 Low) | n/m | n/m | 27/04/2026 03:45:00 |
| Belfast Centre Timeseries Graph |
70 (3 Low) | 41 (1 Low) | 2 (1 Low) | 16 (2 Low) | 24 (2 Low) *2 | 27/04/2026 14:30:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 72 (2 Low) | n/m | n/m | 25 (2 Low) *1 | 27/04/2026 09:00:00 |
| Derry Rosemount Timeseries Graph |
85 (3 Low) | 14 (1 Low) | 3 (1 Low) | 4 (1 Low) | 12 (1 Low) *1 | 26/04/2026 24:30: |
| Lough Navar Timeseries Graph |
73 (3 Low) | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 27/04/2026 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 | 34 (1 Low) | n/m | n/m | n/m | 27/04/2026 17:00:00 |
| Eskdalemuir Timeseries Graph |
87 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 27/04/2026 18:00:00 |
| Peebles Timeseries Graph |
82 (3 Low) | 8 (1 Low) | n/m | n/m | n/m | 27/04/2026 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 | 27/04/2026 01:00:00 |
| Brighton Preston Park Timeseries Graph |
95 (3 Low) | 26 (1 Low) | n/m | 11 (1 Low) | 15 (1 Low) *2 | 27/04/2026 09:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 30 (1 Low) | n/m | 11 (1 Low) | 26 (2 Low) *1 | 27/04/2026 01:00:00 |
| Chilbolton Observatory Timeseries Graph |
129 (5 Moderate) | 27 (1 Low) | 2 (1 Low) | 10 (1 Low) | 17 (2 Low) *2 | 27/04/2026 15:00:00 |
| Eastbourne Timeseries Graph |
103 (4 Moderate) | 23 (1 Low) | n/m | 12 (2 Low) | 16 (1 Low) *2 | 27/04/2026 09:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 18 (2 Low) *2 | 27/04/2026 23:00:00 |
| Horley Timeseries Graph |
n/m | 22 (1 Low) | n/m | 12 (2 Low) | 17 (2 Low) *2 | 27/04/2026 01:00:00 |
| Lullington Heath Timeseries Graph |
108 (4 Moderate) | 15 (1 Low) | 4 (1 Low) | 10 (1 Low) | 13 (1 Low) *2 | 27/04/2026 10:15:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | 24 (2 Low) *2 | 27/04/2026 01:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
114 (4 Moderate) | n/m | n/m | 12 (2 Low) | 17 (2 Low) *2 | 27/04/2026 01:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 46 (1 Low) | n/m | n/m | n/m | 27/04/2026 10:00:00 |
| Oxford St Ebbes Timeseries Graph |
114 (4 Moderate) | 41 (1 Low) | n/m | 12 (2 Low) | 17 (2 Low) *2 | 27/04/2026 01:00:00 |
| Portsmouth Timeseries Graph |
102 (4 Moderate) | 29 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 27/04/2026 19:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 47 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *2 | 27/04/2026 18:00:00 |
| Reading London Road Timeseries Graph |
n/m | 35 (1 Low) | n/m | n/m | 20 (2 Low) *1 | 27/04/2026 07:00:00 |
| Reading New Town Timeseries Graph |
118 (4 Moderate) | 32 (1 Low) | n/m | 11 (1 Low) | 17 (2 Low) *2 | 27/04/2026 22:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | n/m | 27/04/2026 20:00:00 |
| Rochester Stoke Timeseries Graph |
95 (3 Low) | 23 (1 Low) | 7 (1 Low) | 10 (1 Low) | 13 (1 Low) *2 | 27/04/2026 20:15:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 29 (2 Low) *2 | 27/04/2026 22:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 73 (2 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 27/04/2026 20:00:00 |
| Southampton Centre Timeseries Graph |
122 (5 Moderate) | 52 (1 Low) | 7 (1 Low) | 11 (1 Low) | 18 (2 Low) *2 | 27/04/2026 21:45:00 |
| Storrington Roadside Timeseries Graph |
n/m | 32 (1 Low) | n/m | 11 (1 Low) | 18 (2 Low) *2 | 27/04/2026 15:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 46 (1 Low) | n/m | 12 (2 Low) | n/m | 27/04/2026 13:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 17 (2 Low) *2 | 27/04/2026 10:00:00 |
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 |
104 (4 Moderate) | 36 (1 Low) | 3 (1 Low) | 14 (2 Low) | 19 (2 Low) *1 | 27/04/2026 13:45:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 61 (1 Low) | n/m | n/m | 34 (3 Low) *1 | 27/04/2026 09:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 43 (1 Low) | n/m | 13 (2 Low) | 20 (2 Low) *1 | 27/04/2026 04:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
108 (4 Moderate) | 27 (1 Low) | n/m | n/m | n/m | 27/04/2026 19:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 48 (1 Low) | n/m | n/m | n/m | 27/04/2026 08:00:00 |
| Narberth Timeseries Graph |
99 (3 Low) | 5 (1 Low) | 2 (1 Low) | 10 (1 Low) | 17 (2 Low) *2 | 27/04/2026 10:30:00 |
| Newport Timeseries Graph |
n/m | 39 (1 Low) | n/m | 14 (2 Low) | 22 (2 Low) *2 | 27/04/2026 20:00:00 |
| Port Talbot Margam Timeseries Graph |
95 (3 Low) | 49 (1 Low) | 5 (1 Low) | 16 (2 Low) | 23 (2 Low) *3 | 27/04/2026 11:30:00 |
| Swansea Roadside Timeseries Graph |
n/m | 42 (1 Low) | n/m | 17 (2 Low) | 25 (2 Low) *1 | 27/04/2026 17:00:00 |
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 | 15 (2 Low) | 21 (2 Low) *2 | 27/04/2026 02:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 22/03/2026 17:00:00 |
| Bournemouth Timeseries Graph |
104 (4 Moderate) | 27 (1 Low) | n/m | 11 (1 Low) | n/m | 27/04/2026 01:00:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 20 (2 Low) *2 | 27/04/2026 20:00:00 |
| Bristol St Paul's Timeseries Graph |
109 (4 Moderate) | 76 (2 Low) | n/m | 16 (2 Low) | 25 (2 Low) *1 | 27/04/2026 20:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 68 (2 Low) | n/m | 14 (2 Low) | 23 (2 Low) *2 | 27/04/2026 21:00:00 |
| Charlton Mackrell Timeseries Graph |
119 (4 Moderate) | 9 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) *2 | 27/04/2026 22:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | n/m | 27/04/2026 20:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 43 (1 Low) | n/m | 9 (1 Low) | n/m | 27/04/2026 23:00:00 |
| Exeter Roadside Timeseries Graph |
99 (3 Low) | 59 (1 Low) | n/m | n/m | n/m | 27/04/2026 20:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 21 (2 Low) *2 | 27/04/2026 20:00:00 |
| Honiton Timeseries Graph |
121 (5 Moderate) | 15 (1 Low) | n/m | 11 (1 Low) | 15 (1 Low) *2 | 27/04/2026 10:00:00 |
| Plymouth Centre Timeseries Graph |
104 (4 Moderate) | 87 (2 Low) | n/m | 13 (2 Low) | 37 (3 Low) *2 | 27/04/2026 01:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 68 (2 Low) | n/m | n/m | n/m | 27/04/2026 08:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 21 (2 Low) *1 | 27/04/2026 01:00:00 |
| Swindon Walcot Timeseries Graph |
116 (4 Moderate) | 27 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) *2 | 27/04/2026 23:00:00 |
| Yarner Wood Timeseries Graph |
126 (5 Moderate) | 8 (1 Low) | n/m | 9 (1 Low) | 13 (1 Low) *2 | 27/04/2026 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 |
89 (3 Low) | n/m | n/m | n/m | n/m | 26/04/2026 22:00:00 |
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 |
83 (3 Low) | 87 (2 Low) | n/m | 16 (2 Low) | 31 (2 Low) *2 | 27/04/2026 17:00:00 |
| Birmingham Hall Green Timeseries Graph |
98 (3 Low) | 49 (1 Low) | n/m | 17 (2 Low) | 29 (2 Low) *2 | 27/04/2026 17:00:00 |
| Birmingham Ladywood Timeseries Graph |
64 (2 Low) | 46 (1 Low) | 5 (1 Low) | 14 (2 Low) | 21 (2 Low) *2 | 27/04/2026 19:15:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | 22 (2 Low) *2 | 27/04/2026 15:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
84 (3 Low) | 47 (1 Low) | n/m | 12 (2 Low) | 18 (2 Low) *2 | 27/04/2026 14:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 41 (1 Low) | n/m | 15 (2 Low) | n/m | 27/04/2026 17:00:00 |
| Coventry Allesley Timeseries Graph |
97 (3 Low) | 42 (1 Low) | n/m | 11 (1 Low) | 18 (2 Low) *2 | 27/04/2026 21:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 60 (1 Low) | n/m | 11 (1 Low) | 19 (2 Low) *2 | 27/04/2026 21:00:00 |
| Leamington Spa Timeseries Graph |
105 (4 Moderate) | 28 (1 Low) | n/m | 11 (1 Low) | 18 (2 Low) *2 | 27/04/2026 22:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 28 (1 Low) | n/m | 11 (1 Low) | 16 (1 Low) *2 | 27/04/2026 21:00:00 |
| Leominster Timeseries Graph |
98 (3 Low) | 15 (1 Low) | n/m | n/m | n/m | 27/04/2026 18:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 55 (1 Low) | n/m | 21 (2 Low) | 34 (3 Low) *2 | 27/04/2026 16:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 16 (2 Low) | 22 (2 Low) *2 | 27/04/2026 11:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 68 (2 Low) | n/m | 19 (2 Low) | 28 (2 Low) *2 | 27/04/2026 19:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
74 (3 Low) | 57 (1 Low) | n/m | 17 (2 Low) | 27 (2 Low) *2 | 27/04/2026 17:00:00 |
| Telford Hollinswood Timeseries Graph |
91 (3 Low) | 39 (1 Low) | n/m | 15 (2 Low) | 22 (2 Low) *2 | 27/04/2026 16:00:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 26 (2 Low) *2 | 27/04/2026 16:00:00 |
| Walsall Woodlands Timeseries Graph |
88 (3 Low) | 45 (1 Low) | n/m | n/m | n/m | 27/04/2026 19:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
85 (3 Low) | 45 (1 Low) | n/m | n/m | n/m | 27/04/2026 20:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 18 (2 Low) *2 | 27/04/2026 22:00:00 |
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 |
86 (3 Low) | 24 (1 Low) | 3 (1 Low) | 12 (2 Low) | 20 (2 Low) *2 | 26/04/2026 23:15:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 60 (1 Low) | n/m | n/m | n/m | 26/04/2026 24:00: |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 62 (8 High) | 349 (10 Very High) *2 | 27/04/2026 12:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
78 (3 Low) | 38 (1 Low) | n/m | 14 (2 Low) | 21 (2 Low) *2 | 27/04/2026 11:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 44 (1 Low) | n/m | 14 (2 Low) | n/m | 27/04/2026 12:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 16 (1 Low) *2 | 27/04/2026 10:00:00 |
| High Muffles Timeseries Graph |
89 (3 Low) | 4 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 27/04/2026 10:00:00 |
| Hull Freetown Timeseries Graph |
79 (3 Low) | 34 (1 Low) | 2 (1 Low) | 12 (2 Low) | 22 (2 Low) *2 | 27/04/2026 01:15:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 41 (1 Low) | n/m | 10 (1 Low) | 17 (2 Low) *2 | 27/04/2026 22:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
83 (3 Low) | 30 (1 Low) | n/m | 11 (1 Low) | 22 (2 Low) *2 | 27/04/2026 23:00:00 |
| Leeds Centre Timeseries Graph |
81 (3 Low) | 31 (1 Low) | 3 (1 Low) | 15 (2 Low) | 23 (2 Low) *2 | 27/04/2026 01:45:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 37 (1 Low) | n/m | 17 (2 Low) | 26 (2 Low) *1 | 27/04/2026 11:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 21 (2 Low) *2 | 27/04/2026 12:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 20 (1 Low) | 3 (1 Low) | 12 (2 Low) | 18 (2 Low) *1 | 27/04/2026 09:00:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 57 (1 Low) | n/m | 13 (2 Low) | n/m | 27/04/2026 12:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
94 (3 Low) | 24 (1 Low) | n/m | 12 (2 Low) | 19 (2 Low) *2 | 27/04/2026 12:00:00 |
| Sheffield Tinsley Timeseries Graph |
82 (3 Low) | 50 (1 Low) | n/m | 11 (1 Low) | 22 (2 Low) *2 | 27/04/2026 12:00:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | 24 (2 Low) *2 | 27/04/2026 11:00:00 |
| York Bootham Timeseries Graph |
73 (3 Low) | 19 (1 Low) | n/m | 11 (1 Low) | 20 (2 Low) *1 | 27/04/2026 09:00:00 |
| York Fishergate Timeseries Graph |
n/m | 29 (1 Low) | n/m | 6 (1 Low) | 25 (2 Low) *1 | 27/04/2026 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