Latest measured levels based on data provided by the 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
- Pollutant levels recorded for the hour up to 3pm Mon 24th Mar 2025
Central Scotland
| Latest measured levels based on data provided by the 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 |
70 (3 Low) | n/m | n/m | 13 (2 Low) | 20 (2 Low) *2 | 24/03/2025 15:00 |
| Bush Estate Timeseries Graph |
79 (3 Low) | 3 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 14 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 14 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Edinburgh St Leonards Timeseries Graph |
48 (2 Low) | 12 (1 Low) | n/a | 16 (2 Low) | 28 (2 Low) *2 | 24/03/2025 15:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 11 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Glasgow High Street Timeseries Graph |
n/m | 24 (1 Low) | n/m | 12 (2 Low) | 22 (2 Low) *2 | 24/03/2025 15:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Glasgow Townhead Timeseries Graph |
67 (3 Low) | 11 (1 Low) | n/m | 12 (2 Low) | 21 (2 Low) *2 | 24/03/2025 15:00 |
| Grangemouth Timeseries Graph |
n/m | 8 (1 Low) | 2 (1 Low) | 14 (2 Low) | 27 (2 Low) *1 | 24/03/2025 15:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 4 (1 Low) | n/m | n/m | n/m | 24/03/2025 14:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 16 (1 Low) | n/m | 10 (1 Low) | 21 (2 Low) *2 | 24/03/2025 15:00 |
East Midlands
| Latest measured levels based on data provided by the 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 |
77 (3 Low) | 7 (1 Low) | n/m | 28 (3 Low) | 39 (3 Low) *2 | 24/03/2025 15:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 19 (1 Low) | n/m | 28 (3 Low) | 40 (3 Low) *2 | 24/03/2025 15:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 34 (1 Low) | n/m | 30 (3 Low) | n/m | 24/03/2025 15:00 |
| Derby Stockbrook Park Timeseries Graph |
73 (3 Low) | n/m | n/m | 28 (3 Low) | 39 (3 Low) *2 | 24/03/2025 15:00 |
| Ladybower Timeseries Graph |
84 (3 Low) | 18 (1 Low) | 1 (1 Low) | 24 (3 Low) | 31 (2 Low) *2 | 24/03/2025 15:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 29 (1 Low) | n/m | 31 (3 Low) | 43 (3 Low) *2 | 24/03/2025 15:00 |
| Leicester University Timeseries Graph |
76 (3 Low) | 18 (1 Low) | n/m | 29 (3 Low) | 40 (3 Low) *2 | 24/03/2025 15:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 45 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 29 (3 Low) | 39 (3 Low) *2 | 24/03/2025 15:00 |
| Northampton Spring Park Timeseries Graph |
85 (3 Low) | 18 (1 Low) | n/m | 28 (3 Low) | n/m | 24/03/2025 15:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 29 (3 Low) | 39 (3 Low) *2 | 24/03/2025 15:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
82 (3 Low) | 14 (1 Low) | 1 (1 Low) | 31 (3 Low) | 45 (3 Low) *2 | 24/03/2025 15:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 27 (1 Low) | n/m | 30 (3 Low) | 43 (3 Low) *2 | 24/03/2025 15:00 |
| Tallington Timeseries Graph |
91 (3 Low) | n/m | n/m | 28 (3 Low) | 37 (3 Low) *2 | 24/03/2025 15:00 |
| Toft Newton Timeseries Graph |
92 (3 Low) | 9 (1 Low) | n/m | 29 (3 Low) | 38 (3 Low) *2 | 24/03/2025 15:00 |
Eastern
| Latest measured levels based on data provided by the 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 | 5 (1 Low) | n/m | 32 (3 Low) | 41 (3 Low) *2 | 24/03/2025 15:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 23 (1 Low) | n/m | n/m | n/m | 24/03/2025 14:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 46 (1 Low) | n/m | 33 (3 Low) | n/m | 24/03/2025 15:00 |
| Norwich Lakenfields Timeseries Graph |
89 (3 Low) | 12 (1 Low) | n/m | 28 (3 Low) | 37 (3 Low) *2 | 24/03/2025 15:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 29 (3 Low) | 39 (3 Low) *2 | 24/03/2025 15:00 |
| Sibton Timeseries Graph |
90 (3 Low) | n/m | n/m | 31 (3 Low) | 39 (3 Low) *2 | 24/03/2025 15:00 |
| Southend-on-Sea Timeseries Graph |
74 (3 Low) | 11 (1 Low) | n/m | 34 (3 Low) | 43 (3 Low) *2 | 24/03/2025 15:00 |
| St Osyth Timeseries Graph |
91 (3 Low) | 7 (1 Low) | n/m | 36 (4 Moderate) | 44 (3 Low) *2 | 24/03/2025 15:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/a | n/a | 24/03/2025 15:00 |
| Thurrock Timeseries Graph |
79 (3 Low) | 16 (1 Low) | 2 (1 Low) | 35 (3 Low) | 47 (3 Low) *2 | 24/03/2025 15:00 |
| Weybourne Timeseries Graph |
91 (3 Low) | n/m | n/m | 32 (3 Low) | 47 (3 Low) *2 | 24/03/2025 15:00 |
| Wicken Fen Timeseries Graph |
84 (3 Low) | 8 (1 Low) | 2 (1 Low) | 35 (3 Low) | 45 (3 Low) *2 | 24/03/2025 15:00 |
Greater London
| Latest measured levels based on data provided by the 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 | 52 (1 Low) | n/m | 34 (3 Low) | 57 (4 Moderate) *1 | 24/03/2025 15:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 53 (4 Moderate) *1 | 24/03/2025 15:00 |
| Haringey Roadside Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| London Bexley Timeseries Graph |
n/m | 32 (1 Low) | n/m | 39 (4 Moderate) | 51 (4 Moderate) *2 | 24/03/2025 15:00 |
| London Bloomsbury Timeseries Graph |
69 (3 Low) | 21 (1 Low) | 1 (1 Low) | 33 (3 Low) | 44 (3 Low) *2 | 24/03/2025 15:00 |
| London Haringey Priory Park South Timeseries Graph |
90 (3 Low) | 6 (1 Low) | n/m | 30 (3 Low) | 40 (3 Low) *2 | 24/03/2025 15:00 |
| London Harlington Timeseries Graph |
n/a | 27 (1 Low) | n/m | 37 (4 Moderate) | 50 (3 Low) *2 | 24/03/2025 15:00 |
| London Hillingdon Timeseries Graph |
78 (3 Low) | 8 (1 Low) | n/m | 33 (3 Low) | 42 (3 Low) *2 | 24/03/2025 15:00 |
| London Honor Oak Park Timeseries Graph |
87 (3 Low) | n/m | n/m | 32 (3 Low) | 43 (3 Low) *2 | 24/03/2025 15:00 |
| London Marylebone Road Timeseries Graph |
n/a | n/a | n/a | n/a | n/a | 24/03/2025 11:00 |
| London N. Kensington Timeseries Graph |
87 (3 Low) | 10 (1 Low) | 1 (1 Low) | 33 (3 Low) | 42 (3 Low) *2 | 24/03/2025 15:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 34 (3 Low) | 45 (3 Low) *2 | 24/03/2025 15:00 |
| London Westminster Timeseries Graph |
72 (3 Low) | 18 (1 Low) | n/m | 32 (3 Low) | n/m | 24/03/2025 15:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 32 (1 Low) | n/m | n/m | 52 (4 Moderate) *1 | 24/03/2025 15:00 |
Highland
| Latest measured levels based on data provided by the 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 |
64 (2 Low) | 5 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Inverness Timeseries Graph |
n/m | 7 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 24/03/2025 15:00 |
| Lerwick Timeseries Graph |
88 (3 Low) | n/m | n/m | n/m | n/m | 24/03/2025 15:00 |
| Strathvaich Timeseries Graph |
85 (3 Low) | n/m | n/m | n/m | n/m | 24/03/2025 15:00 |
North East
| Latest measured levels based on data provided by the 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 |
58 (2 Low) | 11 (1 Low) | n/m | 23 (2 Low) | 37 (3 Low) *2 | 24/03/2025 15:00 |
| Kielder Water Timeseries Graph |
57 (2 Low) | n/m | n/m | 10 (1 Low) | 14 (1 Low) *2 | 24/03/2025 15:00 |
| Middlesbrough Timeseries Graph |
64 (2 Low) | 7 (1 Low) | 2 (1 Low) | 16 (2 Low) | 31 (2 Low) *1 | 24/03/2025 15:00 |
| Newcastle Centre Timeseries Graph |
51 (2 Low) | 10 (1 Low) | n/m | 17 (2 Low) | 30 (2 Low) *1 | 24/03/2025 15:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 25 (1 Low) | n/m | 19 (2 Low) | 30 (2 Low) *2 | 24/03/2025 15:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 8 (1 Low) | n/m | 17 (2 Low) | n/m | 24/03/2025 15:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 1 (1 Low) | n/m | 16 (2 Low) | 30 (2 Low) *1 | 24/03/2025 15:00 |
| Sunderland Silksworth Timeseries Graph |
63 (2 Low) | 28 (1 Low) | n/m | 19 (2 Low) | 28 (2 Low) *2 | 24/03/2025 15:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 13 (1 Low) | n/m | 19 (2 Low) | n/m | 24/03/2025 15:00 |
North East Scotland
| Latest measured levels based on data provided by the 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 |
35 (2 Low) | 25 (1 Low) | n/m | 10 (1 Low) | 29 (2 Low) *2 | 24/03/2025 15:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 39 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 3 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
North Wales
| Latest measured levels based on data provided by the 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) | 13 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Wrexham Timeseries Graph |
n/m | 20 (1 Low) | n/a | 30 (3 Low) | 39 (3 Low) *2 | 24/03/2025 15:00 |
North West & Merseyside
| Latest measured levels based on data provided by the 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 | 17 (1 Low) | n/m | 29 (3 Low) | n/m | 24/03/2025 15:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Blackburn Audley Park Timeseries Graph |
56 (2 Low) | n/m | n/m | 23 (2 Low) | 32 (2 Low) *2 | 24/03/2025 15:00 |
| Blackpool Marton Timeseries Graph |
71 (3 Low) | 13 (1 Low) | n/m | 25 (3 Low) | 34 (3 Low) *2 | 24/03/2025 15:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 27 (3 Low) | n/m | 24/03/2025 15:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 14 (1 Low) | n/m | n/m | 34 (3 Low) *1 | 24/03/2025 15:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 2 (1 Low) | n/m | 16 (2 Low) | 27 (2 Low) *1 | 24/03/2025 15:00 |
| Crewe Coppenhall Timeseries Graph |
69 (3 Low) | 9 (1 Low) | n/m | 29 (3 Low) | 38 (3 Low) *2 | 24/03/2025 15:00 |
| Glazebury Timeseries Graph |
69 (3 Low) | 7 (1 Low) | n/m | 23 (2 Low) | 31 (2 Low) *2 | 24/03/2025 15:00 |
| Liverpool Speke Timeseries Graph |
58 (2 Low) | 11 (1 Low) | 0 (1 Low) | 24 (3 Low) | 38 (3 Low) *1 | 24/03/2025 15:00 |
| Liverpool Thirlmere Park Timeseries Graph |
63 (2 Low) | n/m | n/m | 28 (3 Low) | 39 (3 Low) *2 | 24/03/2025 15:00 |
| Manchester Piccadilly Timeseries Graph |
53 (2 Low) | 21 (1 Low) | 2 (1 Low) | 28 (3 Low) | 42 (3 Low) *2 | 24/03/2025 15:00 |
| Manchester Sharston Timeseries Graph |
54 (2 Low) | 11 (1 Low) | n/m | 31 (3 Low) | 42 (3 Low) *2 | 24/03/2025 15:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 29 (3 Low) | n/m | 24/03/2025 15:00 |
| Preston Timeseries Graph |
54 (2 Low) | 13 (1 Low) | n/m | 23 (2 Low) | 33 (2 Low) *2 | 24/03/2025 15:00 |
| Salford Eccles Timeseries Graph |
69 (3 Low) | 13 (1 Low) | n/m | 30 (3 Low) | 43 (3 Low) *2 | 24/03/2025 15:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| St Helens Linkway Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | 30 (2 Low) *1 | 24/03/2025 15:00 |
| Warrington Timeseries Graph |
n/m | 7 (1 Low) | n/m | 22 (2 Low) | 35 (3 Low) *1 | 24/03/2025 15:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 27 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Wigan Centre Timeseries Graph |
58 (2 Low) | 7 (1 Low) | n/m | 25 (3 Low) | 33 (2 Low) *2 | 24/03/2025 15:00 |
| Wirral Tranmere Timeseries Graph |
71 (3 Low) | 6 (1 Low) | n/m | 27 (3 Low) | 36 (3 Low) *2 | 24/03/2025 15:00 |
Northern Ireland
| Latest measured levels based on data provided by the 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 | 20 (1 Low) | n/m | n/m | 20 (2 Low) *1 | 24/03/2025 15:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | n/a | n/a | n/m | n/m | 27/02/2025 08:00 |
| Belfast Centre Timeseries Graph |
48 (2 Low) | 11 (1 Low) | 1 (1 Low) | 5 (1 Low) | 10 (1 Low) *2 | 24/03/2025 15:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 41 (1 Low) | n/m | n/m | 22 (2 Low) *1 | 24/03/2025 15:00 |
| Derry Rosemount Timeseries Graph |
67 (3 Low) | 6 (1 Low) | 2 (1 Low) | 11 (1 Low) | 13 (1 Low) *1 | 24/03/2025 15:00 |
| Lough Navar Timeseries Graph |
57 (2 Low) | n/m | n/m | 2 (1 Low) | 4 (1 Low) *2 | 24/03/2025 15:00 |
Scottish Borders
| Latest measured levels based on data provided by the 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 | 24/03/2025 15:00 |
| Eskdalemuir Timeseries Graph |
58 (2 Low) | 1 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Peebles Timeseries Graph |
68 (3 Low) | 3 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
South East
| Latest measured levels based on data provided by the 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 |
55 (2 Low) | n/a | n/m | n/a | n/a | 24/03/2025 15:00 |
| Chatham Roadside Timeseries Graph |
n/m | 17 (1 Low) | n/m | 36 (4 Moderate) | 56 (4 Moderate) *1 | 24/03/2025 15:00 |
| Chilbolton Observatory Timeseries Graph |
86 (3 Low) | 7 (1 Low) | 1 (1 Low) | 32 (3 Low) | 39 (3 Low) *2 | 24/03/2025 15:00 |
| Eastbourne Timeseries Graph |
63 (2 Low) | 10 (1 Low) | n/m | 24 (3 Low) | 29 (2 Low) *2 | 24/03/2025 15:00 |
| Horley Timeseries Graph |
n/m | 11 (1 Low) | n/m | 33 (3 Low) | n/a | 24/03/2025 15:00 |
| Lullington Heath Timeseries Graph |
71 (3 Low) | 9 (1 Low) | 2 (1 Low) | 27 (3 Low) | 32 (2 Low) *2 | 24/03/2025 15:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 34 (3 Low) | 46 (3 Low) *2 | 24/03/2025 15:00 |
| Milton Keynes Civic Centre Timeseries Graph |
88 (3 Low) | n/m | n/m | n/a | n/a | 24/03/2025 15:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 18 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Oxford St Ebbes Timeseries Graph |
90 (3 Low) | 2 (1 Low) | n/m | 30 (3 Low) | 38 (3 Low) *2 | 24/03/2025 15:00 |
| Portsmouth Timeseries Graph |
67 (3 Low) | 15 (1 Low) | n/m | 30 (3 Low) | 37 (3 Low) *2 | 24/03/2025 15:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 29 (1 Low) | n/m | 31 (3 Low) | 41 (3 Low) *2 | 24/03/2025 15:00 |
| Reading London Road Timeseries Graph |
n/m | n/a | n/m | n/m | 42 (3 Low) *1 | 24/03/2025 15:00 |
| Reading New Town Timeseries Graph |
78 (3 Low) | 7 (1 Low) | n/m | 33 (3 Low) | 41 (3 Low) *2 | 24/03/2025 15:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 33 (3 Low) | n/m | 24/03/2025 15:00 |
| Rochester Stoke Timeseries Graph |
79 (3 Low) | 8 (1 Low) | 2 (1 Low) | 38 (4 Moderate) | 47 (3 Low) *2 | 24/03/2025 15:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 36 (4 Moderate) | 56 (4 Moderate) *2 | 24/03/2025 15:00 |
| Southampton A33 Timeseries Graph |
n/m | 6 (1 Low) | n/m | 30 (3 Low) | 37 (3 Low) *2 | 24/03/2025 15:00 |
| Southampton Centre Timeseries Graph |
71 (3 Low) | 12 (1 Low) | 1 (1 Low) | 32 (3 Low) | 40 (3 Low) *2 | 24/03/2025 15:00 |
| Storrington Roadside Timeseries Graph |
n/m | 33 (1 Low) | n/m | 34 (3 Low) | 47 (3 Low) *2 | 24/03/2025 15:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 40 (1 Low) | n/m | 33 (3 Low) | n/m | 24/03/2025 15:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 33 (3 Low) | 41 (3 Low) *2 | 24/03/2025 15:00 |
South Wales
| Latest measured levels based on data provided by the 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 | 26/02/2025 15:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 33 (1 Low) | n/m | n/m | 44 (3 Low) *1 | 24/03/2025 15:00 |
| Chepstow A48 Timeseries Graph |
n/m | 28 (1 Low) | n/m | 27 (3 Low) | 46 (3 Low) *1 | 24/03/2025 15:00 |
| Cwmbran Crownbridge Timeseries Graph |
79 (3 Low) | 7 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 20/03/2025 06:00 |
| Narberth Timeseries Graph |
69 (3 Low) | 9 (1 Low) | 2 (1 Low) | 21 (2 Low) | 30 (2 Low) *2 | 24/03/2025 15:00 |
| Newport Timeseries Graph |
n/m | 11 (1 Low) | n/m | 32 (3 Low) | 42 (3 Low) *2 | 24/03/2025 15:00 |
| Port Talbot Margam Timeseries Graph |
57 (2 Low) | 10 (1 Low) | 1 (1 Low) | 22 (2 Low) | 40 (3 Low) *3 | 24/03/2025 15:00 |
| Swansea Roadside Timeseries Graph |
n/m | 17 (1 Low) | n/m | 22 (2 Low) | 34 (3 Low) *1 | 24/03/2025 15:00 |
South West
| Latest measured levels based on data provided by the 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 | 27 (3 Low) | 36 (3 Low) *2 | 24/03/2025 15:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Bournemouth Timeseries Graph |
69 (3 Low) | 7 (1 Low) | n/m | 30 (3 Low) | n/m | 24/03/2025 15:00 |
| Bristol St Paul's Timeseries Graph |
71 (3 Low) | 16 (1 Low) | n/m | 31 (3 Low) | 44 (3 Low) *1 | 24/03/2025 15:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 28 (1 Low) | n/m | 36 (4 Moderate) | 50 (3 Low) *2 | 24/03/2025 15:00 |
| Charlton Mackrell Timeseries Graph |
73 (3 Low) | 7 (1 Low) | n/m | 29 (3 Low) | 36 (3 Low) *2 | 24/03/2025 15:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 19 (1 Low) | n/m | 30 (3 Low) | n/m | 24/03/2025 15:00 |
| Exeter Roadside Timeseries Graph |
56 (2 Low) | 11 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Honiton Timeseries Graph |
68 (3 Low) | 8 (1 Low) | n/m | 28 (3 Low) | 34 (3 Low) *2 | 24/03/2025 15:00 |
| Plymouth Centre Timeseries Graph |
61 (2 Low) | 13 (1 Low) | n/m | 24 (3 Low) | 32 (2 Low) *2 | 24/03/2025 15:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 9 (1 Low) | n/m | n/m | n/m | 24/03/2025 14:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | 34 (3 Low) *1 | 24/03/2025 15:00 |
| Swindon Walcot Timeseries Graph |
79 (3 Low) | 6 (1 Low) | n/m | 32 (3 Low) | 42 (3 Low) *2 | 24/03/2025 15:00 |
| Yarner Wood Timeseries Graph |
79 (3 Low) | 7 (1 Low) | n/m | 23 (2 Low) | 29 (2 Low) *2 | 24/03/2025 15:00 |
West Ireland
| Latest measured levels based on data provided by the 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 | 24/03/2025 15:00 |
West Midlands
| Latest measured levels based on data provided by the 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 |
71 (3 Low) | 33 (1 Low) | n/m | 31 (3 Low) | 43 (3 Low) *2 | 24/03/2025 15:00 |
| Birmingham Ladywood Timeseries Graph |
80 (3 Low) | 20 (1 Low) | 1 (1 Low) | 32 (3 Low) | 43 (3 Low) *2 | 24/03/2025 15:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
80 (3 Low) | 11 (1 Low) | n/m | 29 (3 Low) | 39 (3 Low) *2 | 24/03/2025 15:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 12 (1 Low) | n/m | 31 (3 Low) | n/m | 24/03/2025 15:00 |
| Coventry Allesley Timeseries Graph |
81 (3 Low) | 6 (1 Low) | n/m | 29 (3 Low) | 39 (3 Low) *2 | 24/03/2025 15:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 19 (1 Low) | n/m | 30 (3 Low) | 40 (3 Low) *2 | 24/03/2025 15:00 |
| Leamington Spa Timeseries Graph |
87 (3 Low) | 17 (1 Low) | n/m | 31 (3 Low) | 40 (3 Low) *2 | 24/03/2025 15:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 19 (1 Low) | n/m | 31 (3 Low) | 41 (3 Low) *2 | 24/03/2025 15:00 |
| Leominster Timeseries Graph |
84 (3 Low) | 5 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 31 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 30 (3 Low) | 40 (3 Low) *2 | 24/03/2025 15:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 20 (1 Low) | n/m | 33 (3 Low) | 45 (3 Low) *2 | 24/03/2025 15:00 |
| Stoke-on-Trent Centre Timeseries Graph |
61 (2 Low) | 22 (1 Low) | n/m | 31 (3 Low) | 43 (3 Low) *2 | 24/03/2025 15:00 |
| Telford Hollinswood Timeseries Graph |
85 (3 Low) | 9 (1 Low) | n/m | 29 (3 Low) | 39 (3 Low) *2 | 24/03/2025 15:00 |
| Walsall Woodlands Timeseries Graph |
85 (3 Low) | 7 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
| West Bromwich Kenrick Park Timeseries Graph |
79 (3 Low) | 18 (1 Low) | n/m | n/m | n/m | 24/03/2025 15:00 |
Yorkshire & Humberside
| Latest measured levels based on data provided by the 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 |
75 (3 Low) | 13 (1 Low) | 1 (1 Low) | 24 (3 Low) | 34 (3 Low) *2 | 24/03/2025 15:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 29 (1 Low) | n/m | n/m | n/m | 24/03/2025 14:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 22 (2 Low) | 40 (3 Low) *2 | 24/03/2025 15:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
76 (3 Low) | 7 (1 Low) | n/m | 23 (2 Low) | 34 (3 Low) *2 | 24/03/2025 15:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 41 (1 Low) | n/m | 27 (3 Low) | n/m | 24/03/2025 15:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 21 (2 Low) | 29 (2 Low) *2 | 24/03/2025 15:00 |
| High Muffles Timeseries Graph |
80 (3 Low) | 6 (1 Low) | n/m | 18 (2 Low) | 24 (2 Low) *2 | 24/03/2025 15:00 |
| Hull Freetown Timeseries Graph |
79 (3 Low) | 18 (1 Low) | 1 (1 Low) | 25 (3 Low) | 37 (3 Low) *2 | 24/03/2025 15:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 25 (1 Low) | n/m | 26 (3 Low) | 38 (3 Low) *2 | 24/03/2025 15:00 |
| Immingham Woodlands Avenue Timeseries Graph |
85 (3 Low) | 7 (1 Low) | n/m | 24 (3 Low) | 35 (3 Low) *2 | 24/03/2025 15:00 |
| Leeds Centre Timeseries Graph |
73 (3 Low) | 25 (1 Low) | 2 (1 Low) | 23 (2 Low) | 33 (2 Low) *2 | 24/03/2025 15:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 25 (1 Low) | n/m | 22 (2 Low) | 43 (3 Low) *1 | 24/03/2025 15:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 28 (3 Low) | 38 (3 Low) *2 | 24/03/2025 15:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 14 (1 Low) | 1 (1 Low) | n/m | 37 (3 Low) *1 | 24/03/2025 15:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 34 (1 Low) | n/m | 23 (2 Low) | n/m | 24/03/2025 15:00 |
| Sheffield Devonshire Green Timeseries Graph |
66 (2 Low) | 14 (1 Low) | n/m | 28 (3 Low) | 39 (3 Low) *2 | 24/03/2025 15:00 |
| Sheffield Tinsley Timeseries Graph |
70 (3 Low) | 17 (1 Low) | n/m | 27 (3 Low) | 38 (3 Low) *2 | 24/03/2025 15:00 |
| York Bootham Timeseries Graph |
62 (2 Low) | 3 (1 Low) | n/m | 22 (2 Low) | 34 (3 Low) *1 | 24/03/2025 15:00 |
| York Fishergate Timeseries Graph |
n/m | 28 (1 Low) | n/m | 20 (2 Low) | 45 (3 Low) *1 | 24/03/2025 15:00 |
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