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 9am Mon 31st Mar 2025
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 |
80 (3 Low) | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 31/03/2025 01:00:00 |
| Bush Estate Timeseries Graph |
85 (3 Low) | 4 (1 Low) | n/m | n/m | n/m | 30/03/2025 10:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 18 (1 Low) | n/m | n/m | n/m | 30/03/2025 22:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 46 (1 Low) | n/m | n/m | n/m | 31/03/2025 08:00:00 |
| Edinburgh St Leonards Timeseries Graph |
61 (2 Low) | 35 (1 Low) | n/a | 6 (1 Low) | 11 (1 Low) *2 | 15/03/2025 22:00:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 51 (1 Low) | n/m | n/m | n/m | 31/03/2025 09:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 43 (1 Low) | n/m | 7 (1 Low) | 17 (2 Low) *2 | 31/03/2025 01:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 75 (2 Low) | n/m | n/m | n/m | 31/03/2025 08:00:00 |
| Glasgow Townhead Timeseries Graph |
84 (3 Low) | 44 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 31/03/2025 01:00:00 |
| Grangemouth Timeseries Graph |
n/m | 28 (1 Low) | 2 (1 Low) | 7 (1 Low) | 9 (1 Low) *1 | 30/03/2025 18:15:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 20 (1 Low) | n/m | n/m | n/m | 31/03/2025 08:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 69 (2 Low) | n/m | 7 (1 Low) | 15 (1 Low) *2 | 31/03/2025 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 |
86 (3 Low) | 16 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 31/03/2025 02:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 37 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) *2 | 31/03/2025 02:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 44 (1 Low) | n/m | 10 (1 Low) | n/m | 31/03/2025 03:00:00 |
| Derby Stockbrook Park Timeseries Graph |
80 (3 Low) | n/m | n/m | 10 (1 Low) | 18 (2 Low) *2 | 31/03/2025 03:00:00 |
| Ladybower Timeseries Graph |
90 (3 Low) | 6 (1 Low) | 2 (1 Low) | 9 (1 Low) | 17 (2 Low) *2 | 30/03/2025 09:45:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 63 (1 Low) | n/m | 11 (1 Low) | 22 (2 Low) *2 | 31/03/2025 09:00:00 |
| Leicester University Timeseries Graph |
83 (3 Low) | 45 (1 Low) | n/m | 10 (1 Low) | 18 (2 Low) *2 | 31/03/2025 05:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 41 (1 Low) | n/m | n/m | n/m | 31/03/2025 08:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 18 (2 Low) *2 | 31/03/2025 02:00:00 |
| Northampton Spring Park Timeseries Graph |
85 (3 Low) | 26 (1 Low) | n/m | 9 (1 Low) | n/m | 31/03/2025 08:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 18 (2 Low) *2 | 31/03/2025 03:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
86 (3 Low) | 50 (1 Low) | 4 (1 Low) | 11 (1 Low) | 22 (2 Low) *2 | 31/03/2025 08:45:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 46 (1 Low) | n/m | 11 (1 Low) | 21 (2 Low) *2 | 31/03/2025 03:00:00 |
| Tallington Timeseries Graph |
89 (3 Low) | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 31/03/2025 04:00:00 |
| Toft Newton Timeseries Graph |
95 (3 Low) | 9 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 31/03/2025 01:00:00 |
Eastern
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Borehamwood Meadow Park Timeseries Graph |
n/m | 36 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 31/03/2025 09:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 46 (1 Low) | n/m | n/m | n/m | 31/03/2025 07:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 77 (2 Low) | n/m | 9 (1 Low) | n/m | 31/03/2025 09:00:00 |
| Norwich Lakenfields Timeseries Graph |
81 (3 Low) | 22 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 31/03/2025 07:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 15 (1 Low) *2 | 31/03/2025 05:00:00 |
| Sibton Timeseries Graph |
85 (3 Low) | n/m | n/m | 7 (1 Low) | 14 (1 Low) *2 | 31/03/2025 07:00:00 |
| Southend-on-Sea Timeseries Graph |
84 (3 Low) | 27 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 31/03/2025 09:00:00 |
| St Osyth Timeseries Graph |
96 (3 Low) | 9 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 31/03/2025 08:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 52 (1 Low) | n/m | 13 (2 Low) | 24 (2 Low) *1 | 31/03/2025 09:00:00 |
| Thurrock Timeseries Graph |
90 (3 Low) | 65 (1 Low) | 6 (1 Low) | 10 (1 Low) | 19 (2 Low) *2 | 31/03/2025 07:45:00 |
| Weybourne Timeseries Graph |
79 (3 Low) | n/m | n/m | 11 (1 Low) | 22 (2 Low) *2 | 31/03/2025 05:00:00 |
| Wicken Fen Timeseries Graph |
77 (3 Low) | 18 (1 Low) | 6 (1 Low) | 7 (1 Low) | 14 (1 Low) *2 | 31/03/2025 08:45:00 |
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 | 72 (2 Low) | n/m | 10 (1 Low) | 26 (2 Low) *1 | 31/03/2025 09:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 36 (3 Low) *1 | 31/03/2025 09:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 62 (1 Low) | n/m | n/m | n/m | 31/03/2025 09:00:00 |
| London Bexley Timeseries Graph |
n/m | 14 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 30/03/2025 13:00:00 |
| London Bloomsbury Timeseries Graph |
75 (3 Low) | 40 (1 Low) | 2 (1 Low) | 7 (1 Low) | 14 (1 Low) *2 | 31/03/2025 06:45:00 |
| London Haringey Priory Park South Timeseries Graph |
90 (3 Low) | 46 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 31/03/2025 09:00:00 |
| London Harlington Timeseries Graph |
67 (3 Low) | 47 (1 Low) | n/m | 9 (1 Low) | 21 (2 Low) *2 | 31/03/2025 09:00:00 |
| London Hillingdon Timeseries Graph |
82 (3 Low) | 45 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 31/03/2025 09:00:00 |
| London Honor Oak Park Timeseries Graph |
91 (3 Low) | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 31/03/2025 09:00:00 |
| London Marylebone Road Timeseries Graph |
55 (2 Low) | 41 (1 Low) | 1 (1 Low) | 9 (1 Low) | 19 (2 Low) *1 | 31/03/2025 06:30:00 |
| London N. Kensington Timeseries Graph |
89 (3 Low) | 59 (1 Low) | 1 (1 Low) | 8 (1 Low) | 15 (1 Low) *2 | 31/03/2025 07:15:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 17 (2 Low) *2 | 31/03/2025 09:00:00 |
| London Westminster Timeseries Graph |
78 (3 Low) | 55 (1 Low) | n/m | 8 (1 Low) | n/m | 31/03/2025 09:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 64 (1 Low) | n/m | n/m | 25 (2 Low) *1 | 31/03/2025 08:00:00 |
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 |
82 (3 Low) | 14 (1 Low) | n/m | n/m | n/m | 30/03/2025 10:00:00 |
| Inverness Timeseries Graph |
n/m | 17 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 31/03/2025 01:00:00 |
| Lerwick Timeseries Graph |
82 (3 Low) | n/m | n/m | n/m | n/m | 30/03/2025 10:00:00 |
| Strathvaich Timeseries Graph |
87 (3 Low) | n/m | n/m | n/m | n/m | 30/03/2025 10:00:00 |
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 |
81 (3 Low) | 16 (1 Low) | n/m | 10 (1 Low) | 17 (2 Low) *2 | 31/03/2025 02:00:00 |
| Kielder Water Timeseries Graph |
77 (3 Low) | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 31/03/2025 01:00:00 |
| Middlesbrough Timeseries Graph |
78 (3 Low) | 40 (1 Low) | 1 (1 Low) | 6 (1 Low) | 19 (2 Low) *1 | 30/03/2025 18:30:00 |
| Newcastle Centre Timeseries Graph |
79 (3 Low) | 61 (1 Low) | n/m | 9 (1 Low) | 20 (2 Low) *1 | 31/03/2025 01:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 103 (2 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 31/03/2025 01:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 33 (1 Low) | n/m | 7 (1 Low) | n/m | 30/03/2025 23:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 12 (1 Low) | n/m | 6 (1 Low) | 19 (2 Low) *1 | 31/03/2025 01:00:00 |
| Sunderland Silksworth Timeseries Graph |
81 (3 Low) | 45 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 31/03/2025 01:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 38 (1 Low) | n/m | 7 (1 Low) | n/m | 31/03/2025 01:00:00 |
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) | 57 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 31/03/2025 01:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 53 (1 Low) | n/m | n/m | n/m | 30/03/2025 21:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/m | n/m | 30/03/2025 22:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 43 (1 Low) | n/m | n/m | n/m | 30/03/2025 21:00:00 |
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 |
80 (3 Low) | 3 (1 Low) | n/m | n/m | n/m | 30/03/2025 20:00:00 |
| Wrexham Timeseries Graph |
n/m | 38 (1 Low) | 6 (1 Low) | 9 (1 Low) | 17 (2 Low) *2 | 31/03/2025 09:00:00 |
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 | 40 (1 Low) | n/m | 12 (2 Low) | n/m | 31/03/2025 01:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 57 (1 Low) | n/m | n/m | n/m | 31/03/2025 09:00:00 |
| Blackburn Audley Park Timeseries Graph |
78 (3 Low) | n/m | n/m | 11 (1 Low) | 21 (2 Low) *2 | 31/03/2025 01:00:00 |
| Blackpool Marton Timeseries Graph |
83 (3 Low) | 26 (1 Low) | n/m | 13 (2 Low) | 25 (2 Low) *2 | 31/03/2025 01:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | n/m | 31/03/2025 01:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 39 (1 Low) | n/m | n/m | 28 (2 Low) *1 | 31/03/2025 09:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 12 (1 Low) | n/m | 7 (1 Low) | 16 (1 Low) *1 | 31/03/2025 01:00:00 |
| Crewe Coppenhall Timeseries Graph |
87 (3 Low) | 34 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) *2 | 31/03/2025 02:00:00 |
| Glazebury Timeseries Graph |
83 (3 Low) | 32 (1 Low) | n/m | 10 (1 Low) | 18 (2 Low) *2 | 31/03/2025 01:00:00 |
| Liverpool Speke Timeseries Graph |
72 (3 Low) | 41 (1 Low) | 1 (1 Low) | 11 (1 Low) | 29 (2 Low) *1 | 31/03/2025 06:30:00 |
| Liverpool Thirlmere Park Timeseries Graph |
80 (3 Low) | n/m | n/m | 12 (2 Low) | 23 (2 Low) *2 | 31/03/2025 01:00:00 |
| Manchester Piccadilly Timeseries Graph |
79 (3 Low) | 56 (1 Low) | 4 (1 Low) | 12 (2 Low) | 24 (2 Low) *2 | 31/03/2025 09:00:00 |
| Manchester Sharston Timeseries Graph |
79 (3 Low) | 57 (1 Low) | n/m | 12 (2 Low) | 23 (2 Low) *2 | 31/03/2025 02:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | n/m | 31/03/2025 02:00:00 |
| Preston Timeseries Graph |
79 (3 Low) | 42 (1 Low) | n/m | 12 (2 Low) | 23 (2 Low) *2 | 31/03/2025 01:00:00 |
| Salford Eccles Timeseries Graph |
86 (3 Low) | 53 (1 Low) | n/m | 13 (2 Low) | 26 (2 Low) *2 | 31/03/2025 02:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 50 (1 Low) | n/m | n/m | n/m | 31/03/2025 09:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 42 (1 Low) | n/m | n/m | n/a | 30/03/2025 23:00:00 |
| Warrington Timeseries Graph |
n/m | 27 (1 Low) | n/m | 10 (1 Low) | 27 (2 Low) *1 | 31/03/2025 02:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 53 (1 Low) | n/m | n/m | n/m | 31/03/2025 09:00:00 |
| Wigan Centre Timeseries Graph |
82 (3 Low) | 47 (1 Low) | n/m | 12 (2 Low) | 22 (2 Low) *2 | 31/03/2025 02:00:00 |
| Wirral Tranmere Timeseries Graph |
81 (3 Low) | 23 (1 Low) | n/m | 12 (2 Low) | 22 (2 Low) *2 | 31/03/2025 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 | 43 (1 Low) | n/m | n/m | 26 (2 Low) *1 | 31/03/2025 09:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 39 (1 Low) | n/m | n/m | n/m | 31/03/2025 08:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | n/a | n/a | n/m | n/m | 26/02/2025 10:15:00 |
| Belfast Centre Timeseries Graph |
55 (2 Low) | 43 (1 Low) | 2 (1 Low) | 9 (1 Low) | 19 (2 Low) *2 | 31/03/2025 08:30:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 59 (1 Low) | n/m | n/m | 33 (2 Low) *1 | 31/03/2025 07:00:00 |
| Derry Rosemount Timeseries Graph |
83 (3 Low) | 19 (1 Low) | 7 (1 Low) | 5 (1 Low) | 20 (2 Low) *1 | 30/03/2025 22:30:00 |
| Lough Navar Timeseries Graph |
77 (3 Low) | n/m | n/m | 8 (1 Low) | 15 (1 Low) *2 | 31/03/2025 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 | 40 (1 Low) | n/m | n/m | n/m | 31/03/2025 09:00:00 |
| Eskdalemuir Timeseries Graph |
83 (3 Low) | 1 (1 Low) | n/m | n/m | n/m | 30/03/2025 10:00:00 |
| Peebles Timeseries Graph |
85 (3 Low) | 19 (1 Low) | n/m | n/m | n/m | 30/03/2025 10:00:00 |
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 |
| Brighton Preston Park Timeseries Graph |
71 (3 Low) | 38 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 31/03/2025 09:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 43 (1 Low) | n/m | 10 (1 Low) | 28 (2 Low) *1 | 31/03/2025 09:00:00 |
| Chilbolton Observatory Timeseries Graph |
93 (3 Low) | 14 (1 Low) | 2 (1 Low) | 7 (1 Low) | 13 (1 Low) *2 | 31/03/2025 05:15:00 |
| Eastbourne Timeseries Graph |
85 (3 Low) | 16 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 31/03/2025 09:00:00 |
| Horley Timeseries Graph |
n/m | 28 (1 Low) | n/m | 8 (1 Low) | n/a | 31/03/2025 09:00:00 |
| Lullington Heath Timeseries Graph |
90 (3 Low) | 7 (1 Low) | 2 (1 Low) | 7 (1 Low) | 11 (1 Low) *2 | 30/03/2025 19:15:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 19 (2 Low) *2 | 31/03/2025 09:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
90 (3 Low) | n/m | n/m | n/a | n/a | 01/02/2025 01:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 54 (1 Low) | n/m | n/m | n/m | 31/03/2025 07:00:00 |
| Oxford St Ebbes Timeseries Graph |
85 (3 Low) | 34 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 31/03/2025 09:00:00 |
| Portsmouth Timeseries Graph |
78 (3 Low) | 63 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 31/03/2025 09:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 61 (1 Low) | n/m | 8 (1 Low) | 17 (2 Low) *2 | 31/03/2025 09:00:00 |
| Reading London Road Timeseries Graph |
n/m | n/a | n/m | n/m | 22 (2 Low) *1 | 11/03/2025 20:00:00 |
| Reading New Town Timeseries Graph |
79 (3 Low) | 40 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 31/03/2025 09:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 31/03/2025 09:00:00 |
| Rochester Stoke Timeseries Graph |
88 (3 Low) | 22 (1 Low) | 3 (1 Low) | 8 (1 Low) | 13 (1 Low) *2 | 30/03/2025 21:30:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 23 (2 Low) *2 | 31/03/2025 09:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 62 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 31/03/2025 09:00:00 |
| Southampton Centre Timeseries Graph |
77 (3 Low) | 54 (1 Low) | 4 (1 Low) | 9 (1 Low) | 16 (1 Low) *2 | 31/03/2025 07:15:00 |
| Storrington Roadside Timeseries Graph |
n/m | 42 (1 Low) | n/m | 8 (1 Low) | 16 (1 Low) *2 | 31/03/2025 09:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 41 (1 Low) | n/m | 11 (1 Low) | n/m | 31/03/2025 09:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 15 (1 Low) *2 | 31/03/2025 09:00:00 |
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 |
n/a | n/a | n/a | n/a | n/a | 25/02/2025 10:30:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 46 (1 Low) | n/m | n/m | 23 (2 Low) *1 | 31/03/2025 08:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 30 (1 Low) | n/m | 10 (1 Low) | 20 (2 Low) *1 | 31/03/2025 06:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
87 (3 Low) | 20 (1 Low) | n/m | n/m | n/m | 30/03/2025 20:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 47 (1 Low) | n/m | n/m | n/m | 31/03/2025 07:00:00 |
| Narberth Timeseries Graph |
81 (3 Low) | 3 (1 Low) | 3 (1 Low) | 11 (1 Low) | 22 (2 Low) *2 | 30/03/2025 09:15:00 |
| Newport Timeseries Graph |
n/m | 23 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 31/03/2025 05:00:00 |
| Port Talbot Margam Timeseries Graph |
80 (3 Low) | 42 (1 Low) | 3 (1 Low) | 8 (1 Low) | 19 (2 Low) *3 | 31/03/2025 01:15:00 |
| Swansea Roadside Timeseries Graph |
n/m | 26 (1 Low) | n/m | 9 (1 Low) | 23 (2 Low) *1 | 31/03/2025 09:00:00 |
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 | 13 (2 Low) | 25 (2 Low) *2 | 31/03/2025 03:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 11 (1 Low) | n/m | n/m | n/m | 31/03/2025 09:00:00 |
| Bournemouth Timeseries Graph |
75 (3 Low) | 22 (1 Low) | n/m | 12 (2 Low) | n/m | 31/03/2025 08:00:00 |
| Bristol St Paul's Timeseries Graph |
79 (3 Low) | 42 (1 Low) | n/m | 10 (1 Low) | 22 (2 Low) *1 | 31/03/2025 09:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 51 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) *2 | 31/03/2025 09:00:00 |
| Charlton Mackrell Timeseries Graph |
79 (3 Low) | 6 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) *2 | 31/03/2025 05:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 32 (1 Low) | n/m | 10 (1 Low) | n/m | 31/03/2025 09:00:00 |
| Exeter Roadside Timeseries Graph |
70 (3 Low) | 37 (1 Low) | n/m | n/m | n/m | 30/03/2025 19:00:00 |
| Honiton Timeseries Graph |
76 (3 Low) | 19 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *2 | 31/03/2025 06:00:00 |
| Plymouth Centre Timeseries Graph |
73 (3 Low) | 68 (2 Low) | n/m | 12 (2 Low) | 22 (2 Low) *2 | 31/03/2025 09:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 83 (2 Low) | n/m | n/m | n/m | 31/03/2025 08:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 26 (2 Low) *1 | 31/03/2025 09:00:00 |
| Swindon Walcot Timeseries Graph |
79 (3 Low) | 54 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 31/03/2025 09:00:00 |
| Yarner Wood Timeseries Graph |
82 (3 Low) | 2 (1 Low) | n/m | 10 (1 Low) | 17 (2 Low) *2 | 31/03/2025 06:00:00 |
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 |
88 (3 Low) | n/m | n/m | n/m | n/m | 30/03/2025 09:00:00 |
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 |
80 (3 Low) | 72 (2 Low) | n/m | 9 (1 Low) | 21 (2 Low) *2 | 31/03/2025 05:00:00 |
| Birmingham Ladywood Timeseries Graph |
83 (3 Low) | 19 (1 Low) | 3 (1 Low) | 9 (1 Low) | 17 (2 Low) *2 | 31/03/2025 08:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
84 (3 Low) | 50 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 31/03/2025 03:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 60 (1 Low) | n/m | 9 (1 Low) | n/m | 31/03/2025 05:00:00 |
| Coventry Allesley Timeseries Graph |
82 (3 Low) | 43 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 31/03/2025 07:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 53 (1 Low) | n/m | 9 (1 Low) | 18 (2 Low) *2 | 31/03/2025 07:00:00 |
| Leamington Spa Timeseries Graph |
90 (3 Low) | 28 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 31/03/2025 07:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 47 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 31/03/2025 09:00:00 |
| Leominster Timeseries Graph |
85 (3 Low) | 19 (1 Low) | n/m | n/m | n/m | 30/03/2025 19:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 85 (2 Low) | n/m | n/m | n/m | 31/03/2025 08:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 16 (1 Low) *2 | 31/03/2025 03:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 95 (2 Low) | n/m | 11 (1 Low) | 21 (2 Low) *2 | 31/03/2025 02:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
75 (3 Low) | 44 (1 Low) | n/m | 11 (1 Low) | 26 (2 Low) *2 | 31/03/2025 02:00:00 |
| Telford Hollinswood Timeseries Graph |
90 (3 Low) | 36 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 31/03/2025 03:00:00 |
| Walsall Woodlands Timeseries Graph |
89 (3 Low) | 28 (1 Low) | n/m | n/m | n/m | 30/03/2025 19:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
84 (3 Low) | 57 (1 Low) | n/m | n/m | n/m | 30/03/2025 19:00:00 |
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 |
82 (3 Low) | 68 (2 Low) | 5 (1 Low) | 10 (1 Low) | 19 (2 Low) *2 | 31/03/2025 08:15:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 67 (1 Low) | n/m | n/m | n/m | 31/03/2025 03:00:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 23 (2 Low) *2 | 31/03/2025 02:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
82 (3 Low) | 39 (1 Low) | n/m | 11 (1 Low) | 22 (2 Low) *2 | 31/03/2025 04:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 49 (1 Low) | n/m | 11 (1 Low) | n/m | 31/03/2025 09:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 15 (1 Low) *2 | 31/03/2025 01:00:00 |
| High Muffles Timeseries Graph |
80 (3 Low) | 1 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 31/03/2025 01:00:00 |
| Hull Freetown Timeseries Graph |
82 (3 Low) | 70 (2 Low) | 4 (1 Low) | 8 (1 Low) | 15 (1 Low) *2 | 31/03/2025 08:45:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 75 (2 Low) | n/m | 8 (1 Low) | 16 (1 Low) *2 | 31/03/2025 02:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
81 (3 Low) | 32 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 31/03/2025 02:00:00 |
| Leeds Centre Timeseries Graph |
82 (3 Low) | 46 (1 Low) | 2 (1 Low) | 11 (1 Low) | 21 (2 Low) *2 | 30/03/2025 22:15:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 41 (1 Low) | n/m | 12 (2 Low) | 27 (2 Low) *1 | 31/03/2025 03:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 22 (2 Low) *2 | 31/03/2025 05:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 43 (1 Low) | 3 (1 Low) | n/m | 24 (2 Low) *1 | 31/03/2025 06:45:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 56 (1 Low) | n/m | 9 (1 Low) | n/m | 31/03/2025 01:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
77 (3 Low) | 43 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) *2 | 31/03/2025 02:00:00 |
| Sheffield Tinsley Timeseries Graph |
80 (3 Low) | 50 (1 Low) | n/m | 10 (1 Low) | 21 (2 Low) *2 | 31/03/2025 02:00:00 |
| York Bootham Timeseries Graph |
76 (3 Low) | 34 (1 Low) | n/m | 9 (1 Low) | 19 (2 Low) *1 | 31/03/2025 01:00:00 |
| York Fishergate Timeseries Graph |
n/m | 36 (1 Low) | n/m | 7 (1 Low) | 27 (2 Low) *1 | 31/03/2025 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