24 Hour Summary, based on data provided by Environment Agency
Here you can view the detailed data behind the latest measurement summary displayed on UK-AIR, and also a summary of information that has been displayed over the previous 24 hours. The detailed data tabulated below are from monitoring sites within the AURN. Graphs of hourly monitoring data are also available to view as weekly time series. You can also subscribe to this information as an email alert.
- View the legend
- Maximum pollutant levels displayed on UK-AIR for the 24 hour period up to 2pm Wed 30th Sep 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 |
64 (2 Low) | n/m | n/m | 7 (1 Low) | 10 (1 Low) *2 | 30/09/2026 08:00:00 |
| Bush Estate Timeseries Graph |
75 (3 Low) | 4 (1 Low) | n/m | n/m | n/m | 29/09/2026 22:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 12 (1 Low) | n/m | n/m | n/m | 29/09/2026 15:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 69 (2 Low) | n/m | n/m | n/m | 30/09/2026 11:00:00 |
| Edinburgh St Leonards Timeseries Graph |
71 (3 Low) | 7 (1 Low) | 3 (1 Low) | 8 (1 Low) | 11 (1 Low) *2 | 30/09/2026 11:45:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 51 (1 Low) | n/m | n/m | n/m | 30/09/2026 09:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 23 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 30/09/2026 06:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 85 (2 Low) | n/m | n/m | n/m | 29/09/2026 19:00:00 |
| Glasgow Townhead Timeseries Graph |
65 (2 Low) | 11 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 30/09/2026 06:00:00 |
| Grangemouth Timeseries Graph |
n/m | 9 (1 Low) | n/a | 8 (1 Low) | 10 (1 Low) *1 | 28/09/2026 19:45:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/m | n/m | 29/09/2026 17:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 55 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 30/09/2026 14:00:00 |
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 |
57 (2 Low) | 17 (1 Low) | n/m | 12 (2 Low) | 20 (2 Low) *2 | 30/09/2026 10:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 38 (1 Low) | n/m | 13 (2 Low) | 22 (2 Low) *2 | 30/09/2026 10:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 49 (1 Low) | n/m | 13 (2 Low) | n/m | 30/09/2026 09:00:00 |
| Derby Stockbrook Park Timeseries Graph |
70 (3 Low) | n/m | n/m | 12 (2 Low) | 19 (2 Low) *2 | 30/09/2026 09:00:00 |
| Ladybower Timeseries Graph |
67 (3 Low) | 7 (1 Low) | 2 (1 Low) | 10 (1 Low) | 16 (1 Low) *2 | 30/09/2026 09:15:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | 14 (2 Low) | 23 (2 Low) *2 | 30/09/2026 09:00:00 |
| Leicester University Timeseries Graph |
83 (3 Low) | 13 (1 Low) | n/m | 13 (2 Low) | 19 (2 Low) *2 | 30/09/2026 10:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 27 (1 Low) | n/m | n/m | n/m | 30/09/2026 09:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 21 (2 Low) *2 | 30/09/2026 10:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 20 (2 Low) *2 | 30/09/2026 10:00:00 |
| Northampton Spring Park Timeseries Graph |
85 (3 Low) | 21 (1 Low) | n/m | 15 (2 Low) | n/m | 30/09/2026 11:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 19 (2 Low) *2 | 30/09/2026 10:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
70 (3 Low) | 17 (1 Low) | 2 (1 Low) | 15 (2 Low) | 23 (2 Low) *2 | 30/09/2026 02:30:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 18 (1 Low) | n/m | 12 (2 Low) | 21 (2 Low) *2 | 30/09/2026 10:00:00 |
| Tallington Timeseries Graph |
93 (3 Low) | n/m | n/m | 15 (2 Low) | 23 (2 Low) *2 | 30/09/2026 11:00:00 |
| Toft Newton Timeseries Graph |
85 (3 Low) | 8 (1 Low) | n/m | 17 (2 Low) | 23 (2 Low) *2 | 30/09/2026 12:00:00 |
| Wigston Centre Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 22 (2 Low) *2 | 30/09/2026 10:00:00 |
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 | 37 (1 Low) | n/m | 15 (2 Low) | 24 (2 Low) *2 | 30/09/2026 03:00:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 27 (2 Low) *2 | 30/09/2026 08:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | n/m | n/m | 30/09/2026 10:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 31 (1 Low) | n/m | 15 (2 Low) | n/m | 30/09/2026 04:00:00 |
| Norwich Lakenfields Timeseries Graph |
63 (2 Low) | 21 (1 Low) | n/m | 20 (2 Low) | 28 (2 Low) *2 | 30/09/2026 09:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 16 (2 Low) | 26 (2 Low) *2 | 30/09/2026 11:00:00 |
| Sibton Timeseries Graph |
61 (2 Low) | n/m | n/m | 21 (2 Low) | 29 (2 Low) *2 | 30/09/2026 07:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | n/a | n/a | 09/09/2026 01:00:00 |
| Southend-on-Sea Timeseries Graph |
55 (2 Low) | 26 (1 Low) | n/m | 24 (3 Low) | 33 (2 Low) *2 | 30/09/2026 04:00:00 |
| St Osyth Timeseries Graph |
63 (2 Low) | 28 (1 Low) | n/m | 25 (3 Low) | 35 (3 Low) *2 | 30/09/2026 05:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 55 (1 Low) | n/m | 30 (3 Low) | 29 (2 Low) *1 | 30/09/2026 04:00:00 |
| Stevenage St Georges Way South Timeseries Graph |
n/m | n/m | n/m | n/a | n/m | 04/09/2026 01:00:00 |
| Thurrock Timeseries Graph |
48 (2 Low) | 38 (1 Low) | 2 (1 Low) | 25 (3 Low) | 35 (3 Low) *2 | 29/09/2026 22:15:00 |
| Weybourne Timeseries Graph |
n/a | n/m | n/m | 21 (2 Low) | 28 (2 Low) *2 | 30/09/2026 09:00:00 |
| Wicken Fen Timeseries Graph |
91 (3 Low) | 13 (1 Low) | 3 (1 Low) | 16 (2 Low) | 25 (2 Low) *2 | 30/09/2026 08:00:00 |
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 | 57 (1 Low) | n/m | 17 (2 Low) | 30 (2 Low) *1 | 30/09/2026 06:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 34 (3 Low) *1 | 30/09/2026 14:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 46 (1 Low) | n/m | n/m | n/m | 29/09/2026 20:00:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | n/m | 30/09/2026 05:00:00 |
| London Bexley Timeseries Graph |
n/m | 46 (1 Low) | n/m | 21 (2 Low) | 31 (2 Low) *2 | 30/09/2026 04:00:00 |
| London Bloomsbury Timeseries Graph |
56 (2 Low) | 50 (1 Low) | 2 (1 Low) | 14 (2 Low) | 24 (2 Low) *2 | 29/09/2026 15:45:00 |
| London Farringdon Street Timeseries Graph |
n/m | 50 (1 Low) | n/m | 19 (2 Low) | n/m | 30/09/2026 02:00:00 |
| London Haringey Priory Park South Timeseries Graph |
56 (2 Low) | 62 (1 Low) | n/m | 16 (2 Low) | 25 (2 Low) *2 | 30/09/2026 04:00:00 |
| London Harlington Timeseries Graph |
85 (3 Low) | 36 (1 Low) | n/m | 9 (1 Low) | 20 (2 Low) *2 | 30/09/2026 02:00:00 |
| London Hillingdon Timeseries Graph |
68 (3 Low) | 43 (1 Low) | n/m | 11 (1 Low) | 25 (2 Low) *2 | 30/09/2026 03:00:00 |
| London Honor Oak Park Timeseries Graph |
91 (3 Low) | n/m | n/m | 12 (2 Low) | 19 (2 Low) *2 | 30/09/2026 02:00:00 |
| London Marylebone Road Timeseries Graph |
58 (2 Low) | 72 (2 Low) | 18 (1 Low) | 16 (2 Low) | 31 (2 Low) *1 | 30/09/2026 14:00:00 |
| London N. Kensington Timeseries Graph |
65 (2 Low) | 35 (1 Low) | 2 (1 Low) | 13 (2 Low) | 22 (2 Low) *2 | 30/09/2026 11:00:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 17 (2 Low) *2 | 30/09/2026 02:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 16 (1 Low) *2 | 30/09/2026 03:00:00 |
| London Westminster Timeseries Graph |
60 (2 Low) | 40 (1 Low) | n/m | n/m | n/m | 30/09/2026 05:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 68 (2 Low) | n/m | n/m | 36 (3 Low) *1 | 29/09/2026 17:00:00 |
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) | 18 (1 Low) | n/m | n/m | n/m | 30/09/2026 01:00:00 |
| Inverness Timeseries Graph |
n/m | 26 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 30/09/2026 08:00:00 |
| Lerwick Timeseries Graph |
76 (3 Low) | n/m | n/m | n/m | n/m | 29/09/2026 20:00:00 |
| Strathvaich Timeseries Graph |
81 (3 Low) | n/m | n/m | n/m | n/m | 30/09/2026 11:00:00 |
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 | 14 (2 Low) | 20 (2 Low) *2 | 30/09/2026 10:00:00 |
| Hartlepool St Abbs Walk Timeseries Graph |
71 (3 Low) | 17 (1 Low) | n/m | 18 (2 Low) | 35 (3 Low) *2 | 30/09/2026 11:00:00 |
| Kielder Water Timeseries Graph |
63 (2 Low) | n/m | n/m | 12 (2 Low) | 16 (1 Low) *2 | 30/09/2026 08:00:00 |
| Middlesbrough Timeseries Graph |
51 (2 Low) | 25 (1 Low) | 2 (1 Low) | 12 (2 Low) | 19 (2 Low) *1 | 29/09/2026 14:30:00 |
| Newcastle Centre Timeseries Graph |
62 (2 Low) | 30 (1 Low) | n/m | 14 (2 Low) | 26 (2 Low) *1 | 30/09/2026 09:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 68 (2 Low) | n/m | 17 (2 Low) | 23 (2 Low) *2 | 30/09/2026 09:00:00 |
| North Shields Chirton Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 24 (2 Low) *2 | 30/09/2026 10:00:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | 22 (2 Low) *2 | 30/09/2026 11:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 25 (1 Low) | n/m | 11 (1 Low) | n/m | 30/09/2026 14:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 20 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) *1 | 30/09/2026 10:00:00 |
| Sunderland Silksworth Timeseries Graph |
73 (3 Low) | 12 (1 Low) | n/m | 16 (2 Low) | 23 (2 Low) *2 | 30/09/2026 10:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 25 (1 Low) | n/m | 17 (2 Low) | n/m | 30/09/2026 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 |
73 (3 Low) | 37 (1 Low) | n/m | 18 (2 Low) | 30 (2 Low) *2 | 30/09/2026 14:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 30 (1 Low) | n/m | n/m | n/m | 29/09/2026 19:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 9 (1 Low) | n/m | n/m | n/m | 30/09/2026 13:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | n/m | 30/09/2026 10:00:00 |
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 |
77 (3 Low) | 6 (1 Low) | n/m | n/m | n/m | 29/09/2026 23:00:00 |
| Wrexham Timeseries Graph |
n/m | 37 (1 Low) | n/a | 8 (1 Low) | 13 (1 Low) *2 | 14/09/2026 16:30:00 |
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 | 38 (1 Low) | n/m | 8 (1 Low) | n/m | 30/09/2026 05:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 35 (1 Low) | n/m | n/m | n/m | 30/09/2026 10:00:00 |
| Blackburn Audley Park Timeseries Graph |
70 (3 Low) | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 30/09/2026 06:00:00 |
| Blackpool Marton Timeseries Graph |
66 (2 Low) | 12 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 30/09/2026 06:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 30/09/2026 06:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 19 (1 Low) | n/m | n/m | 15 (1 Low) *1 | 30/09/2026 09:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 11 (1 Low) | n/m | 12 (2 Low) | 11 (1 Low) *1 | 30/09/2026 06:00:00 |
| Crewe Coppenhall Timeseries Graph |
66 (2 Low) | 11 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 30/09/2026 07:00:00 |
| Glazebury Timeseries Graph |
62 (2 Low) | 19 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 30/09/2026 07:00:00 |
| Liverpool Speke Timeseries Graph |
71 (3 Low) | 18 (1 Low) | 10 (1 Low) | 10 (1 Low) | 14 (1 Low) *1 | 30/09/2026 11:45:00 |
| Liverpool Thirlmere Park Timeseries Graph |
66 (2 Low) | n/m | n/m | 7 (1 Low) | 12 (1 Low) *2 | 30/09/2026 06:00:00 |
| Manchester Piccadilly Timeseries Graph |
53 (2 Low) | 28 (1 Low) | 2 (1 Low) | 10 (1 Low) | 20 (2 Low) *2 | 30/09/2026 02:30:00 |
| Manchester Sharston Timeseries Graph |
63 (2 Low) | 14 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 30/09/2026 09:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | n/m | 30/09/2026 07:00:00 |
| Preston Timeseries Graph |
65 (2 Low) | 16 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 30/09/2026 06:00:00 |
| Rochdale Belfield Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 15 (1 Low) *2 | 30/09/2026 06:00:00 |
| Salford Eccles Timeseries Graph |
66 (2 Low) | 25 (1 Low) | n/m | 9 (1 Low) | 20 (2 Low) *2 | 30/09/2026 08:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 38 (1 Low) | n/m | n/m | n/m | 30/09/2026 09:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 34 (1 Low) | n/m | n/m | 14 (1 Low) *1 | 30/09/2026 09:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 30/09/2026 13:00:00 |
| Warrington St. Peter's Park Timeseries Graph |
n/m | 20 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 30/09/2026 07:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 54 (1 Low) | n/m | n/m | n/m | 30/09/2026 09:00:00 |
| Wigan Centre Timeseries Graph |
63 (2 Low) | 24 (1 Low) | n/m | 9 (1 Low) | 18 (2 Low) *2 | 30/09/2026 06:00:00 |
| Wirral Tranmere Timeseries Graph |
67 (3 Low) | 18 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 30/09/2026 06:00:00 |
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 | 26 (1 Low) | n/m | n/m | 15 (1 Low) *1 | 30/09/2026 09:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/m | n/m | 30/09/2026 09:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 16 (1 Low) | 4 (1 Low) | n/m | n/m | 30/09/2026 02:30:00 |
| Belfast Centre Timeseries Graph |
81 (3 Low) | 16 (1 Low) | 2 (1 Low) | 9 (1 Low) | 18 (2 Low) *2 | 30/09/2026 02:30:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 67 (1 Low) | n/m | n/m | 14 (1 Low) *1 | 30/09/2026 08:00:00 |
| Derry Rosemount Timeseries Graph |
75 (3 Low) | 10 (1 Low) | 2 (1 Low) | 4 (1 Low) | 11 (1 Low) *1 | 29/09/2026 20:15:00 |
| Lough Navar Timeseries Graph |
61 (2 Low) | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 30/09/2026 09:00:00 |
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 | 22 (1 Low) | n/m | n/m | n/m | 29/09/2026 16:00:00 |
| Eskdalemuir Timeseries Graph |
69 (3 Low) | 3 (1 Low) | n/m | n/m | n/m | 30/09/2026 14:00:00 |
| Peebles Timeseries Graph |
72 (3 Low) | 6 (1 Low) | n/m | n/m | n/m | 30/09/2026 14:00:00 |
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 | 30/09/2026 04:00:00 |
| Brighton Preston Park Timeseries Graph |
73 (3 Low) | 17 (1 Low) | n/m | 11 (1 Low) | 21 (2 Low) *2 | 30/09/2026 01:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 33 (1 Low) | n/m | 11 (1 Low) | 26 (2 Low) *1 | 30/09/2026 03:00:00 |
| Chilbolton Observatory Timeseries Graph |
81 (3 Low) | 9 (1 Low) | 2 (1 Low) | 10 (1 Low) | 16 (1 Low) *2 | 29/09/2026 17:30:00 |
| Eastbourne Timeseries Graph |
64 (2 Low) | 27 (1 Low) | n/m | 14 (2 Low) | 21 (2 Low) *2 | 30/09/2026 01:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 17 (2 Low) *2 | 30/09/2026 05:00:00 |
| Horley Timeseries Graph |
n/m | 40 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 29/09/2026 11:00:00 |
| Lullington Heath Timeseries Graph |
77 (3 Low) | 9 (1 Low) | 2 (1 Low) | 10 (1 Low) | 15 (1 Low) *2 | 30/09/2026 02:30:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 23 (2 Low) *2 | 30/09/2026 03:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
81 (3 Low) | n/m | n/m | 13 (2 Low) | 21 (2 Low) *2 | 30/09/2026 05:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 20 (1 Low) | n/m | n/m | n/m | 29/09/2026 19:00:00 |
| Oxford St Ebbes Timeseries Graph |
88 (3 Low) | 11 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 30/09/2026 05:00:00 |
| Portsmouth Timeseries Graph |
58 (2 Low) | 23 (1 Low) | n/m | 10 (1 Low) | 18 (2 Low) *2 | 30/09/2026 03:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 32 (1 Low) | n/m | 15 (2 Low) | 27 (2 Low) *2 | 30/09/2026 03:00:00 |
| Reading London Road Timeseries Graph |
n/m | 11 (1 Low) | n/m | n/m | 21 (2 Low) *1 | 29/09/2026 19:00:00 |
| Reading New Town Timeseries Graph |
83 (3 Low) | 13 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 30/09/2026 04:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | n/m | 30/09/2026 04:00:00 |
| Rochester Stoke Timeseries Graph |
59 (2 Low) | 38 (1 Low) | 3 (1 Low) | 37 (4 Moderate) | 46 (3 Low) *2 | 29/09/2026 14:15:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 22 (2 Low) *2 | 30/09/2026 03:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 67 (1 Low) | n/m | 11 (1 Low) | 20 (2 Low) *2 | 30/09/2026 04:00:00 |
| Southampton Centre Timeseries Graph |
62 (2 Low) | 26 (1 Low) | 2 (1 Low) | 11 (1 Low) | 21 (2 Low) *2 | 30/09/2026 03:30:00 |
| Storrington Roadside Timeseries Graph |
n/m | 20 (1 Low) | n/m | 12 (2 Low) | 21 (2 Low) *2 | 30/09/2026 03:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 28 (1 Low) | n/m | 12 (2 Low) | n/m | 30/09/2026 05:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 23 (2 Low) *2 | 30/09/2026 01:00:00 |
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 |
72 (3 Low) | 19 (1 Low) | 2 (1 Low) | 10 (1 Low) | 19 (2 Low) *1 | 30/09/2026 02:30:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | 26 (2 Low) *1 | 29/09/2026 23:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 37 (1 Low) | n/m | 6 (1 Low) | 15 (1 Low) *1 | 30/09/2026 07:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
68 (3 Low) | 20 (1 Low) | n/m | n/m | n/m | 29/09/2026 19:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 50 (1 Low) | n/m | n/m | n/m | 29/09/2026 17:00:00 |
| Narberth Timeseries Graph |
77 (3 Low) | 4 (1 Low) | 2 (1 Low) | 10 (1 Low) | 18 (2 Low) *2 | 29/09/2026 20:30:00 |
| Newport Timeseries Graph |
n/m | 23 (1 Low) | n/m | 9 (1 Low) | 18 (2 Low) *2 | 30/09/2026 06:00:00 |
| Port Talbot Margam Timeseries Graph |
80 (3 Low) | 34 (1 Low) | 2 (1 Low) | 10 (1 Low) | n/a | 30/09/2026 13:15:00 |
| Swansea Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) *1 | 30/09/2026 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 | 8 (1 Low) | 15 (1 Low) *2 | 30/09/2026 03:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 32 (1 Low) | n/m | n/m | n/m | 30/09/2026 09:00:00 |
| Bournemouth Timeseries Graph |
70 (3 Low) | 14 (1 Low) | n/m | 10 (1 Low) | n/m | 30/09/2026 08:00:00 |
| Bournemouth Bourne Valley Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 19 (2 Low) *2 | 30/09/2026 05:00:00 |
| Bridgwater A372 Westonzoyland Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | n/m | 30/09/2026 02:00:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 17 (2 Low) *2 | 30/09/2026 06:00:00 |
| Bristol St Paul's Timeseries Graph |
68 (3 Low) | 29 (1 Low) | n/m | 8 (1 Low) | 20 (2 Low) *1 | 30/09/2026 01:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 37 (1 Low) | n/m | 9 (1 Low) | 18 (2 Low) *2 | 30/09/2026 02:00:00 |
| Charlton Mackrell Timeseries Graph |
75 (3 Low) | 9 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 30/09/2026 05:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 30/09/2026 06:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 23 (1 Low) | n/m | 6 (1 Low) | n/m | 30/09/2026 08:00:00 |
| Exeter Roadside Timeseries Graph |
75 (3 Low) | 27 (1 Low) | n/m | n/m | n/m | 29/09/2026 23:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 15 (1 Low) *2 | 30/09/2026 06:00:00 |
| Honiton Timeseries Graph |
86 (3 Low) | 7 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 30/09/2026 05:00:00 |
| Plymouth Centre Timeseries Graph |
67 (3 Low) | 17 (1 Low) | n/m | 10 (1 Low) | 21 (2 Low) *2 | 30/09/2026 12:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 10 (1 Low) | n/m | n/m | n/m | 30/09/2026 10:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 18 (2 Low) *1 | 30/09/2026 14:00:00 |
| Swindon Walcot Timeseries Graph |
75 (3 Low) | 8 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *2 | 30/09/2026 07:00:00 |
| Yarner Wood Timeseries Graph |
80 (3 Low) | n/a | n/m | 5 (1 Low) | 7 (1 Low) *2 | 30/09/2026 04:00:00 |
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 |
87 (3 Low) | n/m | n/m | n/m | n/m | 30/09/2026 02:00:00 |
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 |
| Bedworth Collycroft Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 18 (2 Low) *2 | 30/09/2026 09:00:00 |
| Birmingham A4540 Roadside Timeseries Graph |
57 (2 Low) | 56 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 30/09/2026 08:00:00 |
| Birmingham Hall Green Timeseries Graph |
76 (3 Low) | 26 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 30/09/2026 08:00:00 |
| Birmingham Ladywood Timeseries Graph |
58 (2 Low) | 33 (1 Low) | 3 (1 Low) | 9 (1 Low) | 16 (1 Low) *2 | 29/09/2026 15:45:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 30/09/2026 08:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
72 (3 Low) | 18 (1 Low) | n/m | 12 (2 Low) | 19 (2 Low) *2 | 30/09/2026 09:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 28 (1 Low) | n/m | 9 (1 Low) | n/m | 30/09/2026 08:00:00 |
| Coventry Allesley Timeseries Graph |
76 (3 Low) | 16 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 30/09/2026 09:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 59 (1 Low) | n/m | 10 (1 Low) | 18 (2 Low) *2 | 30/09/2026 08:00:00 |
| Leamington Spa Timeseries Graph |
86 (3 Low) | 20 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 30/09/2026 09:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 23 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 30/09/2026 09:00:00 |
| Leominster Timeseries Graph |
80 (3 Low) | 7 (1 Low) | n/m | n/m | n/m | 29/09/2026 22:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 44 (1 Low) | n/m | 10 (1 Low) | 17 (2 Low) *2 | 30/09/2026 08:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 13 (1 Low) *2 | 30/09/2026 04:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | n/a | n/m | 12 (2 Low) | 19 (2 Low) *2 | 30/09/2026 09:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
63 (2 Low) | 25 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) *2 | 30/09/2026 08:00:00 |
| Telford Hollinswood Timeseries Graph |
73 (3 Low) | 19 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 30/09/2026 07:00:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 15 (1 Low) *2 | 30/09/2026 08:00:00 |
| Walsall Woodlands Timeseries Graph |
70 (3 Low) | 26 (1 Low) | n/m | n/m | n/m | 29/09/2026 23:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
68 (3 Low) | 27 (1 Low) | n/m | n/m | n/m | 29/09/2026 23:00:00 |
| Wolverhampton East Park Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 15 (1 Low) *2 | 30/09/2026 08:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 13 (1 Low) *2 | 30/09/2026 07:00:00 |
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 |
61 (2 Low) | 23 (1 Low) | 3 (1 Low) | 14 (2 Low) | 21 (2 Low) *2 | 30/09/2026 12:30:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 48 (1 Low) | n/m | n/m | n/m | 29/09/2026 18:00:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 17 (2 Low) | 26 (2 Low) *2 | 30/09/2026 09:00:00 |
| Bradford West Park Timeseries Graph |
n/m | n/m | n/m | 17 (2 Low) | 27 (2 Low) *2 | 30/09/2026 09:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
65 (2 Low) | 29 (1 Low) | n/m | 14 (2 Low) | 23 (2 Low) *2 | 30/09/2026 09:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 27 (1 Low) | n/m | 16 (2 Low) | n/m | 30/09/2026 11:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 17 (2 Low) | 23 (2 Low) *2 | 30/09/2026 10:00:00 |
| High Muffles Timeseries Graph |
66 (2 Low) | 7 (1 Low) | n/m | 15 (2 Low) | 19 (2 Low) *2 | 30/09/2026 12:00:00 |
| Hull Freetown Timeseries Graph |
69 (3 Low) | 20 (1 Low) | 2 (1 Low) | 23 (2 Low) | 34 (3 Low) *2 | 30/09/2026 11:15:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 32 (1 Low) | n/m | 25 (3 Low) | 37 (3 Low) *2 | 30/09/2026 13:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
71 (3 Low) | 20 (1 Low) | n/m | 21 (2 Low) | 28 (2 Low) *2 | 30/09/2026 13:00:00 |
| Leeds Centre Timeseries Graph |
67 (3 Low) | 30 (1 Low) | 2 (1 Low) | 17 (2 Low) | 26 (2 Low) *2 | 30/09/2026 09:30:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 42 (1 Low) | n/m | 16 (2 Low) | 31 (2 Low) *1 | 30/09/2026 11:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | 22 (2 Low) *2 | 30/09/2026 09:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 26 (1 Low) | 5 (1 Low) | 19 (2 Low) | 41 (3 Low) *1 | 29/09/2026 20:15:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 59 (1 Low) | n/m | 16 (2 Low) | n/m | 30/09/2026 10:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
56 (2 Low) | 48 (1 Low) | n/m | 13 (2 Low) | 21 (2 Low) *2 | 30/09/2026 09:00:00 |
| Sheffield Tinsley Timeseries Graph |
62 (2 Low) | 29 (1 Low) | n/m | 14 (2 Low) | 22 (2 Low) *2 | 30/09/2026 08:00:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | 23 (2 Low) *2 | 30/09/2026 09:00:00 |
| York Bootham Timeseries Graph |
61 (2 Low) | 12 (1 Low) | n/m | 13 (2 Low) | 22 (2 Low) *1 | 30/09/2026 14:00:00 |
| York Fishergate Timeseries Graph |
n/m | 18 (1 Low) | n/m | 12 (2 Low) | 28 (2 Low) *1 | 30/09/2026 12:00:00 |
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