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 5pm Wed 23rd Apr 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 | 6 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Bush Estate Timeseries Graph |
73 (3 Low) | 4 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 8 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 6 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Edinburgh St Leonards Timeseries Graph |
60 (2 Low) | 5 (1 Low) | 1 (1 Low) | 7 (1 Low) | 11 (1 Low) *2 | 23/04/2025 17:00:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 7 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 54 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Glasgow Townhead Timeseries Graph |
82 (3 Low) | 6 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 23/04/2025 17:00:00 |
| Grangemouth Timeseries Graph |
n/m | 10 (1 Low) | 2 (1 Low) | 5 (1 Low) | 11 (1 Low) *1 | 23/04/2025 17:00:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 27 (1 Low) | n/m | n/m | n/m | 23/04/2025 16:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
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) | 4 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 18 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 23/04/2025 17:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 24 (1 Low) | n/m | 6 (1 Low) | n/m | 23/04/2025 17:00:00 |
| Derby Stockbrook Park Timeseries Graph |
68 (3 Low) | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Ladybower Timeseries Graph |
91 (3 Low) | 4 (1 Low) | 3 (1 Low) | 5 (1 Low) | 7 (1 Low) *2 | 23/04/2025 17:00:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 15 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Leicester University Timeseries Graph |
85 (3 Low) | 4 (1 Low) | n/m | 5 (1 Low) | 7 (1 Low) *2 | 23/04/2025 17:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 34 (1 Low) | n/m | n/m | n/m | 23/04/2025 16:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Northampton Spring Park Timeseries Graph |
69 (3 Low) | 8 (1 Low) | n/m | 7 (1 Low) | n/m | 23/04/2025 17:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 23/04/2025 17:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
77 (3 Low) | 5 (1 Low) | 2 (1 Low) | 5 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 13 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Tallington Timeseries Graph |
78 (3 Low) | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 23/04/2025 17:00:00 |
| Toft Newton Timeseries Graph |
96 (3 Low) | 3 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 23/04/2025 17:00:00 |
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 | 6 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 19 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 44 (1 Low) | n/m | 5 (1 Low) | n/m | 23/04/2025 17:00:00 |
| Norwich Lakenfields Timeseries Graph |
70 (3 Low) | 8 (1 Low) | n/m | 6 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 11 (1 Low) *2 | 23/04/2025 17:00:00 |
| Sibton Timeseries Graph |
72 (3 Low) | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 23/04/2025 17:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 23/04/2025 17:00:00 |
| Southend-on-Sea Timeseries Graph |
82 (3 Low) | 6 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 23/04/2025 17:00:00 |
| St Osyth Timeseries Graph |
97 (3 Low) | 5 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 23/04/2025 17:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 37 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *1 | 23/04/2025 17:00:00 |
| Thurrock Timeseries Graph |
80 (3 Low) | 17 (1 Low) | 2 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 23/04/2025 17:00:00 |
| Weybourne Timeseries Graph |
51 (2 Low) | n/m | n/m | 7 (1 Low) | 11 (1 Low) *2 | 23/04/2025 17:00:00 |
| Wicken Fen Timeseries Graph |
70 (3 Low) | 5 (1 Low) | n/a | 7 (1 Low) | 11 (1 Low) *2 | 23/04/2025 17:00:00 |
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 | 31 (1 Low) | n/m | 6 (1 Low) | 15 (1 Low) *1 | 23/04/2025 17:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 16 (1 Low) *1 | 23/04/2025 17:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 18 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| London Bexley Timeseries Graph |
n/m | 19 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/04/2025 17:00:00 |
| London Bloomsbury Timeseries Graph |
62 (2 Low) | 20 (1 Low) | 1 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 23/04/2025 17:00:00 |
| London Haringey Priory Park South Timeseries Graph |
78 (3 Low) | 9 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| London Harlington Timeseries Graph |
n/a | 9 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 23/04/2025 16:00:00 |
| London Hillingdon Timeseries Graph |
67 (3 Low) | 9 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| London Honor Oak Park Timeseries Graph |
83 (3 Low) | n/m | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| London Marylebone Road Timeseries Graph |
50 (2 Low) | 24 (1 Low) | 1 (1 Low) | 7 (1 Low) | 21 (2 Low) *1 | 23/04/2025 17:00:00 |
| London N. Kensington Timeseries Graph |
80 (3 Low) | 10 (1 Low) | 1 (1 Low) | 3 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/04/2025 17:00:00 |
| London Westminster Timeseries Graph |
65 (2 Low) | 19 (1 Low) | n/m | 4 (1 Low) | n/m | 23/04/2025 17:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 31 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 23/04/2025 17:00:00 |
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 |
66 (2 Low) | 3 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Inverness Timeseries Graph |
n/m | 4 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Lerwick Timeseries Graph |
90 (3 Low) | n/m | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Strathvaich Timeseries Graph |
82 (3 Low) | n/m | n/m | n/m | n/m | 23/04/2025 17:00:00 |
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 |
68 (3 Low) | 7 (1 Low) | n/m | 11 (1 Low) | 22 (2 Low) *2 | 23/04/2025 17:00:00 |
| Kielder Water Timeseries Graph |
80 (3 Low) | n/m | n/m | 5 (1 Low) | 7 (1 Low) *2 | 23/04/2025 17:00:00 |
| Middlesbrough Timeseries Graph |
59 (2 Low) | 20 (1 Low) | 1 (1 Low) | 9 (1 Low) | 23 (2 Low) *1 | 23/04/2025 17:00:00 |
| Newcastle Centre Timeseries Graph |
73 (3 Low) | 18 (1 Low) | n/m | 11 (1 Low) | 23 (2 Low) *1 | 23/04/2025 17:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 32 (1 Low) | n/m | 11 (1 Low) | 18 (2 Low) *2 | 23/04/2025 17:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | 10 (1 Low) | n/m | 23/04/2025 17:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 16 (1 Low) | n/m | 12 (2 Low) | 24 (2 Low) *1 | 23/04/2025 17:00:00 |
| Sunderland Silksworth Timeseries Graph |
63 (2 Low) | 21 (1 Low) | n/m | 11 (1 Low) | 18 (2 Low) *2 | 23/04/2025 17:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 9 (1 Low) | n/m | 10 (1 Low) | n/m | 23/04/2025 17:00:00 |
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 |
n/a | 7 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 23/04/2025 17:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 39 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 2 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 10 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
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 |
72 (3 Low) | 5 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Wrexham Timeseries Graph |
n/m | 15 (1 Low) | 4 (1 Low) | 5 (1 Low) | 13 (1 Low) *2 | 23/04/2025 17:00:00 |
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 | 15 (1 Low) | n/m | 4 (1 Low) | n/m | 23/04/2025 17:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Blackburn Audley Park Timeseries Graph |
78 (3 Low) | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Blackpool Marton Timeseries Graph |
81 (3 Low) | 5 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 23/04/2025 17:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 23/04/2025 17:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 10 (1 Low) | n/m | n/m | 12 (1 Low) *1 | 23/04/2025 17:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 6 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *1 | 23/04/2025 17:00:00 |
| Crewe Coppenhall Timeseries Graph |
81 (3 Low) | 3 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| Glazebury Timeseries Graph |
72 (3 Low) | 9 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| Liverpool Speke Timeseries Graph |
67 (3 Low) | 11 (1 Low) | 1 (1 Low) | 7 (1 Low) | 10 (1 Low) *1 | 23/04/2025 17:00:00 |
| Liverpool Thirlmere Park Timeseries Graph |
77 (3 Low) | n/m | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| Manchester Piccadilly Timeseries Graph |
73 (3 Low) | 26 (1 Low) | 2 (1 Low) | 5 (1 Low) | 10 (1 Low) *2 | 23/04/2025 17:00:00 |
| Manchester Sharston Timeseries Graph |
67 (3 Low) | 8 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 23/04/2025 17:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 23/04/2025 17:00:00 |
| Preston Timeseries Graph |
79 (3 Low) | 12 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 23/04/2025 17:00:00 |
| Salford Eccles Timeseries Graph |
81 (3 Low) | 18 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 23/04/2025 17:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 12 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 68 (2 Low) | n/m | n/m | 8 (1 Low) *1 | 23/04/2025 17:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 23/04/2025 17:00:00 |
| Warrington Timeseries Graph |
n/m | 12 (1 Low) | n/m | 3 (1 Low) | 10 (1 Low) *1 | 23/04/2025 17:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 55 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Wigan Centre Timeseries Graph |
75 (3 Low) | 16 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/04/2025 17:00:00 |
| Wirral Tranmere Timeseries Graph |
78 (3 Low) | 9 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
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 | 11 (1 Low) | n/m | n/m | 10 (1 Low) *1 | 23/04/2025 17:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 6 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | n/a | n/a | n/m | n/m | 27/02/2025 09:00:00 |
| Belfast Centre Timeseries Graph |
48 (2 Low) | 26 (1 Low) | 2 (1 Low) | 6 (1 Low) | 13 (1 Low) *2 | 23/04/2025 17:00:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 21 (1 Low) | n/m | n/m | 14 (1 Low) *1 | 23/04/2025 17:00:00 |
| Derry Rosemount Timeseries Graph |
74 (3 Low) | 14 (1 Low) | 2 (1 Low) | 3 (1 Low) | 12 (1 Low) *1 | 23/04/2025 17:00:00 |
| Lough Navar Timeseries Graph |
74 (3 Low) | n/m | n/m | 2 (1 Low) | 4 (1 Low) *2 | 23/04/2025 17:00:00 |
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 | 69 (2 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Eskdalemuir Timeseries Graph |
86 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Peebles Timeseries Graph |
79 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
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 |
54 (2 Low) | 6 (1 Low) | n/m | n/a | n/a | 23/04/2025 17:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 11 (1 Low) | n/m | 3 (1 Low) | 15 (1 Low) *1 | 23/04/2025 17:00:00 |
| Chilbolton Observatory Timeseries Graph |
73 (3 Low) | 7 (1 Low) | 1 (1 Low) | 4 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| Eastbourne Timeseries Graph |
65 (2 Low) | 4 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| Horley Timeseries Graph |
n/m | 6 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| Lullington Heath Timeseries Graph |
66 (2 Low) | 4 (1 Low) | 2 (1 Low) | 5 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
83 (3 Low) | n/m | n/m | n/a | n/a | 23/04/2025 17:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 16 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Oxford St Ebbes Timeseries Graph |
82 (3 Low) | 3 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 23/04/2025 17:00:00 |
| Portsmouth Timeseries Graph |
63 (2 Low) | 12 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | n/a | n/m | 5 (1 Low) | 10 (1 Low) *2 | 23/04/2025 17:00:00 |
| Reading London Road Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 23/04/2025 17:00:00 |
| Reading New Town Timeseries Graph |
68 (3 Low) | 6 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 23/04/2025 17:00:00 |
| Rochester Stoke Timeseries Graph |
84 (3 Low) | 6 (1 Low) | 1 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 23/04/2025 17:00:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 10 (1 Low) *2 | 23/04/2025 17:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 9 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Southampton Centre Timeseries Graph |
63 (2 Low) | 13 (1 Low) | 0 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 23/04/2025 17:00:00 |
| Storrington Roadside Timeseries Graph |
n/m | 37 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 23/04/2025 17:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 17 (1 Low) | n/m | 8 (1 Low) | n/m | 23/04/2025 17:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 14 (1 Low) *2 | 23/04/2025 17:00:00 |
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 16:00:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 33 (1 Low) | n/m | n/m | 23 (2 Low) *1 | 23/04/2025 17:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 46 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *1 | 23/04/2025 17:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
76 (3 Low) | 5 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 26 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Narberth Timeseries Graph |
66 (2 Low) | 2 (1 Low) | 1 (1 Low) | 4 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Newport Timeseries Graph |
n/m | 17 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| Port Talbot Margam Timeseries Graph |
70 (3 Low) | 14 (1 Low) | 1 (1 Low) | 2 (1 Low) | 10 (1 Low) *3 | 23/04/2025 17:00:00 |
| Swansea Roadside Timeseries Graph |
n/m | 29 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *1 | 23/04/2025 17:00:00 |
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 | 5 (1 Low) | 11 (1 Low) *2 | 23/04/2025 17:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 42 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Bournemouth Timeseries Graph |
n/a | n/a | n/m | n/a | n/m | 02/04/2025 16:00:00 |
| Bristol St Paul's Timeseries Graph |
66 (2 Low) | 11 (1 Low) | n/m | 3 (1 Low) | 11 (1 Low) *1 | 23/04/2025 17:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 26 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 23/04/2025 17:00:00 |
| Charlton Mackrell Timeseries Graph |
69 (3 Low) | 4 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 23/04/2025 17:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 27 (1 Low) | n/m | 6 (1 Low) | n/m | 23/04/2025 17:00:00 |
| Exeter Roadside Timeseries Graph |
47 (2 Low) | 21 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 23/04/2025 17:00:00 |
| Honiton Timeseries Graph |
73 (3 Low) | 2 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 23/04/2025 17:00:00 |
| Plymouth Centre Timeseries Graph |
68 (3 Low) | 15 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 23/04/2025 17:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 23/04/2025 16:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 2 (1 Low) | 10 (1 Low) *1 | 23/04/2025 17:00:00 |
| Swindon Walcot Timeseries Graph |
73 (3 Low) | 4 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| Yarner Wood Timeseries Graph |
76 (3 Low) | 2 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) *2 | 23/04/2025 17:00:00 |
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 |
79 (3 Low) | n/m | n/m | n/m | n/m | 23/04/2025 17:00:00 |
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 |
59 (2 Low) | 19 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 23/04/2025 17:00:00 |
| Birmingham Ladywood Timeseries Graph |
65 (2 Low) | 14 (1 Low) | 1 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 23/04/2025 17:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
77 (3 Low) | 12 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 23/04/2025 17:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 21 (1 Low) | n/m | 4 (1 Low) | n/m | 23/04/2025 17:00:00 |
| Coventry Allesley Timeseries Graph |
66 (2 Low) | 7 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 20 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/04/2025 17:00:00 |
| Leamington Spa Timeseries Graph |
72 (3 Low) | 14 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 9 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| Leominster Timeseries Graph |
76 (3 Low) | 7 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 18/04/2025 04:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 54 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 23/04/2025 17:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
77 (3 Low) | 9 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 23/04/2025 17:00:00 |
| Telford Hollinswood Timeseries Graph |
79 (3 Low) | 10 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
| Walsall Woodlands Timeseries Graph |
78 (3 Low) | 11 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
66 (2 Low) | 23 (1 Low) | n/m | n/m | n/m | 23/04/2025 17:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 23/04/2025 17:00:00 |
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 |
82 (3 Low) | 7 (1 Low) | 1 (1 Low) | 6 (1 Low) | 11 (1 Low) *2 | 23/04/2025 17:00:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 85 (2 Low) | n/m | n/m | n/m | 23/04/2025 16:00:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 16 (1 Low) *2 | 23/04/2025 17:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
77 (3 Low) | 13 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 23/04/2025 17:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 19 (1 Low) | n/m | 7 (1 Low) | n/m | 23/04/2025 17:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 14 (1 Low) *2 | 23/04/2025 17:00:00 |
| High Muffles Timeseries Graph |
75 (3 Low) | 3 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *2 | 23/04/2025 17:00:00 |
| Hull Freetown Timeseries Graph |
79 (3 Low) | 10 (1 Low) | 2 (1 Low) | 11 (1 Low) | 19 (2 Low) *2 | 23/04/2025 17:00:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 13 (1 Low) | n/m | 12 (2 Low) | 19 (2 Low) *2 | 23/04/2025 17:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
80 (3 Low) | 10 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 23/04/2025 17:00:00 |
| Leeds Centre Timeseries Graph |
79 (3 Low) | 14 (1 Low) | 2 (1 Low) | 8 (1 Low) | 14 (1 Low) *2 | 23/04/2025 17:00:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 29 (1 Low) | n/m | 10 (1 Low) | 28 (2 Low) *1 | 23/04/2025 17:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 23/04/2025 17:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 8 (1 Low) | 2 (1 Low) | 10 (1 Low) | 21 (2 Low) *1 | 23/04/2025 17:00:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 43 (1 Low) | n/m | 8 (1 Low) | n/m | 23/04/2025 17:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
65 (2 Low) | 9 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 23/04/2025 17:00:00 |
| Sheffield Tinsley Timeseries Graph |
70 (3 Low) | 6 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 23/04/2025 17:00:00 |
| York Bootham Timeseries Graph |
74 (3 Low) | 6 (1 Low) | n/m | 11 (1 Low) | 18 (2 Low) *1 | 23/04/2025 17:00:00 |
| York Fishergate Timeseries Graph |
n/m | 12 (1 Low) | n/m | 9 (1 Low) | 24 (2 Low) *1 | 23/04/2025 17:00:00 |
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