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 10am Sat 29th 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 |
63 (2 Low) | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 29/03/2025 10:00 |
| Bush Estate Timeseries Graph |
76 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 1 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 4 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Edinburgh St Leonards Timeseries Graph |
54 (2 Low) | 4 (1 Low) | n/a | 4 (1 Low) | 9 (1 Low) *2 | 29/03/2025 10:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 10 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Glasgow High Street Timeseries Graph |
n/m | 9 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 29/03/2025 10:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Glasgow Townhead Timeseries Graph |
71 (3 Low) | 14 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 29/03/2025 10:00 |
| Grangemouth Timeseries Graph |
n/m | 2 (1 Low) | 1 (1 Low) | 4 (1 Low) | 6 (1 Low) *1 | 29/03/2025 10:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 2 (1 Low) | n/m | n/m | n/m | 29/03/2025 09:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 15 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 29/03/2025 10:00 |
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 |
65 (2 Low) | 4 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 29/03/2025 10:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 9 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 29/03/2025 10:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 24 (1 Low) | n/m | 5 (1 Low) | n/m | 29/03/2025 10:00 |
| Derby Stockbrook Park Timeseries Graph |
45 (2 Low) | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 29/03/2025 10:00 |
| Ladybower Timeseries Graph |
74 (3 Low) | 2 (1 Low) | 1 (1 Low) | 5 (1 Low) | 11 (1 Low) *2 | 29/03/2025 10:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 23 (1 Low) | n/m | 5 (1 Low) | 13 (1 Low) *2 | 29/03/2025 10:00 |
| Leicester University Timeseries Graph |
37 (2 Low) | 8 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 13 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 11 (1 Low) *2 | 29/03/2025 10:00 |
| Northampton Spring Park Timeseries Graph |
56 (2 Low) | 6 (1 Low) | n/m | n/a | n/m | 29/03/2025 10:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
48 (2 Low) | 7 (1 Low) | 1 (1 Low) | 6 (1 Low) | 17 (2 Low) *2 | 29/03/2025 10:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 13 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 29/03/2025 10:00 |
| Tallington Timeseries Graph |
55 (2 Low) | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 29/03/2025 10:00 |
| Toft Newton Timeseries Graph |
49 (2 Low) | 4 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 29/03/2025 10:00 |
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 | 3 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 29/03/2025 10:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/m | n/m | 29/03/2025 08:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 21 (1 Low) | n/m | 4 (1 Low) | n/m | 29/03/2025 10:00 |
| Norwich Lakenfields Timeseries Graph |
46 (2 Low) | 2 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| Sibton Timeseries Graph |
50 (2 Low) | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| Southend-on-Sea Timeseries Graph |
57 (2 Low) | 5 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| St Osyth Timeseries Graph |
62 (2 Low) | 5 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 29/03/2025 10:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 14 (1 Low) | n/m | 8 (1 Low) | 16 (1 Low) *1 | 29/03/2025 10:00 |
| Thurrock Timeseries Graph |
46 (2 Low) | 15 (1 Low) | 3 (1 Low) | 4 (1 Low) | 11 (1 Low) *2 | 29/03/2025 10:00 |
| Weybourne Timeseries Graph |
48 (2 Low) | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| Wicken Fen Timeseries Graph |
39 (2 Low) | 5 (1 Low) | 2 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
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 | 13 (1 Low) | n/m | 7 (1 Low) | 17 (2 Low) *1 | 29/03/2025 10:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 52 (4 Moderate) *1 | 29/03/2025 10:00 |
| Haringey Roadside Timeseries Graph |
n/m | 13 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| London Bexley Timeseries Graph |
n/m | 19 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 29/03/2025 10:00 |
| London Bloomsbury Timeseries Graph |
47 (2 Low) | 18 (1 Low) | 1 (1 Low) | 4 (1 Low) | 9 (1 Low) *2 | 29/03/2025 10:00 |
| London Haringey Priory Park South Timeseries Graph |
58 (2 Low) | 7 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 29/03/2025 10:00 |
| London Harlington Timeseries Graph |
42 (2 Low) | 12 (1 Low) | n/m | 5 (1 Low) | 13 (1 Low) *2 | 29/03/2025 10:00 |
| London Hillingdon Timeseries Graph |
41 (2 Low) | 14 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| London Honor Oak Park Timeseries Graph |
54 (2 Low) | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| London Marylebone Road Timeseries Graph |
n/a | n/a | n/a | n/a | n/a | 28/03/2025 24:00 |
| London N. Kensington Timeseries Graph |
49 (2 Low) | 11 (1 Low) | 1 (1 Low) | 4 (1 Low) | 10 (1 Low) *2 | 29/03/2025 10:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 29/03/2025 10:00 |
| London Westminster Timeseries Graph |
45 (2 Low) | 14 (1 Low) | n/m | 6 (1 Low) | n/m | 29/03/2025 10:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | 18 (2 Low) *1 | 29/03/2025 10:00 |
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 |
69 (3 Low) | 22 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Inverness Timeseries Graph |
n/m | 7 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 29/03/2025 10:00 |
| Lerwick Timeseries Graph |
69 (3 Low) | n/m | n/m | n/m | n/m | 29/03/2025 10:00 |
| Strathvaich Timeseries Graph |
78 (3 Low) | n/m | n/m | n/m | n/m | 29/03/2025 10:00 |
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 |
57 (2 Low) | 5 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| Kielder Water Timeseries Graph |
59 (2 Low) | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 29/03/2025 10:00 |
| Middlesbrough Timeseries Graph |
57 (2 Low) | 4 (1 Low) | 1 (1 Low) | 3 (1 Low) | 12 (1 Low) *1 | 29/03/2025 10:00 |
| Newcastle Centre Timeseries Graph |
57 (2 Low) | 16 (1 Low) | n/m | 6 (1 Low) | 15 (1 Low) *1 | 29/03/2025 10:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 25 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 29/03/2025 10:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 5 (1 Low) | n/m | 4 (1 Low) | n/m | 29/03/2025 10:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 1 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *1 | 29/03/2025 10:00 |
| Sunderland Silksworth Timeseries Graph |
66 (2 Low) | 6 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 6 (1 Low) | n/m | 4 (1 Low) | n/m | 29/03/2025 10:00 |
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 |
53 (2 Low) | 7 (1 Low) | n/m | 2 (1 Low) | 6 (1 Low) *2 | 29/03/2025 10:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 10 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 3 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 12 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
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 |
69 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Wrexham Timeseries Graph |
n/m | 10 (1 Low) | 5 (1 Low) | 5 (1 Low) | 9 (1 Low) *2 | 29/03/2025 10:00 |
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 | 6 (1 Low) | n/m | 7 (1 Low) | n/m | 29/03/2025 10:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Blackburn Audley Park Timeseries Graph |
60 (2 Low) | n/m | n/m | 6 (1 Low) | 13 (1 Low) *2 | 29/03/2025 10:00 |
| Blackpool Marton Timeseries Graph |
72 (3 Low) | 5 (1 Low) | n/m | 7 (1 Low) | 17 (2 Low) *2 | 29/03/2025 10:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | n/m | 29/03/2025 10:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 13 (1 Low) | n/m | n/m | 19 (2 Low) *1 | 29/03/2025 10:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | n/a | n/m | n/a | n/a | 28/03/2025 14:00 |
| Crewe Coppenhall Timeseries Graph |
52 (2 Low) | 6 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 29/03/2025 10:00 |
| Glazebury Timeseries Graph |
54 (2 Low) | 9 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 29/03/2025 10:00 |
| Liverpool Speke Timeseries Graph |
54 (2 Low) | 3 (1 Low) | 1 (1 Low) | 5 (1 Low) | 17 (2 Low) *1 | 29/03/2025 10:00 |
| Liverpool Thirlmere Park Timeseries Graph |
62 (2 Low) | n/m | n/m | 6 (1 Low) | 14 (1 Low) *2 | 29/03/2025 10:00 |
| Manchester Piccadilly Timeseries Graph |
44 (2 Low) | 20 (1 Low) | 2 (1 Low) | 8 (1 Low) | 19 (2 Low) *2 | 29/03/2025 10:00 |
| Manchester Sharston Timeseries Graph |
41 (2 Low) | 10 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 29/03/2025 10:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 29/03/2025 10:00 |
| Preston Timeseries Graph |
64 (2 Low) | 8 (1 Low) | n/m | 6 (1 Low) | 15 (1 Low) *2 | 29/03/2025 10:00 |
| Salford Eccles Timeseries Graph |
51 (2 Low) | 13 (1 Low) | n/m | 8 (1 Low) | 18 (2 Low) *2 | 29/03/2025 10:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 21 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| St Helens Linkway Timeseries Graph |
n/m | 27 (1 Low) | n/m | n/m | 22 (2 Low) *1 | 29/03/2025 10:00 |
| Warrington Timeseries Graph |
n/m | 11 (1 Low) | n/m | 5 (1 Low) | 14 (1 Low) *1 | 29/03/2025 10:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 35 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Wigan Centre Timeseries Graph |
53 (2 Low) | 15 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 29/03/2025 10:00 |
| Wirral Tranmere Timeseries Graph |
63 (2 Low) | 4 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 29/03/2025 10:00 |
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 | 24 (1 Low) | n/m | n/m | 20 (2 Low) *1 | 29/03/2025 10:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | n/a | n/a | n/m | n/m | 27/02/2025 08:00 |
| Belfast Centre Timeseries Graph |
36 (2 Low) | 17 (1 Low) | 1 (1 Low) | 6 (1 Low) | 13 (1 Low) *2 | 29/03/2025 10:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | 21 (2 Low) *1 | 29/03/2025 10:00 |
| Derry Rosemount Timeseries Graph |
66 (2 Low) | 4 (1 Low) | 1 (1 Low) | 4 (1 Low) | 14 (1 Low) *1 | 29/03/2025 10:00 |
| Lough Navar Timeseries Graph |
49 (2 Low) | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 29/03/2025 10:00 |
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 | 22 (1 Low) | n/m | n/m | n/m | 29/03/2025 08:00 |
| Eskdalemuir Timeseries Graph |
54 (2 Low) | 1 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Peebles Timeseries Graph |
74 (3 Low) | 1 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
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 |
50 (2 Low) | 2 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| Chatham Roadside Timeseries Graph |
n/m | 17 (1 Low) | n/m | 6 (1 Low) | 19 (2 Low) *1 | 29/03/2025 10:00 |
| Chilbolton Observatory Timeseries Graph |
72 (3 Low) | 4 (1 Low) | 1 (1 Low) | 6 (1 Low) | 10 (1 Low) *2 | 29/03/2025 10:00 |
| Eastbourne Timeseries Graph |
56 (2 Low) | 3 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 29/03/2025 10:00 |
| Horley Timeseries Graph |
n/m | 0 (1 Low) | n/m | 4 (1 Low) | n/a | 29/03/2025 10:00 |
| Lullington Heath Timeseries Graph |
66 (2 Low) | 2 (1 Low) | 1 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 29/03/2025 10:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 12 (1 Low) *2 | 29/03/2025 10:00 |
| Milton Keynes Civic Centre Timeseries Graph |
56 (2 Low) | n/m | n/m | n/a | n/a | 29/03/2025 10:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 3 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Oxford St Ebbes Timeseries Graph |
47 (2 Low) | 2 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 29/03/2025 10:00 |
| Portsmouth Timeseries Graph |
45 (2 Low) | 13 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 29/03/2025 10:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | n/a | n/m | 6 (1 Low) | 15 (1 Low) *2 | 29/03/2025 10:00 |
| Reading London Road Timeseries Graph |
n/m | n/a | n/m | n/m | 17 (2 Low) *1 | 29/03/2025 10:00 |
| Reading New Town Timeseries Graph |
34 (2 Low) | 4 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 29/03/2025 10:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 29/03/2025 10:00 |
| Rochester Stoke Timeseries Graph |
51 (2 Low) | 13 (1 Low) | 2 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 12 (1 Low) *2 | 29/03/2025 10:00 |
| Southampton A33 Timeseries Graph |
n/m | 23 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 29/03/2025 10:00 |
| Southampton Centre Timeseries Graph |
42 (2 Low) | 18 (1 Low) | 3 (1 Low) | 5 (1 Low) | 10 (1 Low) *2 | 29/03/2025 10:00 |
| Storrington Roadside Timeseries Graph |
n/m | 17 (1 Low) | n/m | 6 (1 Low) | 15 (1 Low) *2 | 29/03/2025 10:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | 9 (1 Low) | n/m | 29/03/2025 10:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 29/03/2025 10:00 |
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 | 9 (1 Low) | n/m | n/m | 14 (1 Low) *1 | 29/03/2025 10:00 |
| Chepstow A48 Timeseries Graph |
n/m | 36 (1 Low) | n/m | 6 (1 Low) | 17 (2 Low) *1 | 29/03/2025 10:00 |
| Cwmbran Crownbridge Timeseries Graph |
42 (2 Low) | 3 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 14 (1 Low) | n/m | n/m | n/m | 29/03/2025 08:00 |
| Narberth Timeseries Graph |
64 (2 Low) | 1 (1 Low) | 3 (1 Low) | 5 (1 Low) | 12 (1 Low) *2 | 29/03/2025 10:00 |
| Newport Timeseries Graph |
n/m | 7 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| Port Talbot Margam Timeseries Graph |
27 (1 Low) | 7 (1 Low) | 2 (1 Low) | 4 (1 Low) | 13 (1 Low) *3 | 29/03/2025 10:00 |
| Swansea Roadside Timeseries Graph |
n/m | 22 (1 Low) | n/m | 6 (1 Low) | 17 (2 Low) *1 | 29/03/2025 10:00 |
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 | 6 (1 Low) | 15 (1 Low) *2 | 29/03/2025 10:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Bournemouth Timeseries Graph |
47 (2 Low) | 3 (1 Low) | n/m | 8 (1 Low) | n/m | 29/03/2025 10:00 |
| Bristol St Paul's Timeseries Graph |
29 (1 Low) | 6 (1 Low) | n/m | 6 (1 Low) | 15 (1 Low) *1 | 29/03/2025 10:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 17 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 29/03/2025 10:00 |
| Charlton Mackrell Timeseries Graph |
52 (2 Low) | 1 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 29/03/2025 10:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 8 (1 Low) | n/m | 7 (1 Low) | n/m | 29/03/2025 10:00 |
| Exeter Roadside Timeseries Graph |
30 (1 Low) | 16 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Honiton Timeseries Graph |
36 (2 Low) | 2 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 29/03/2025 10:00 |
| Plymouth Centre Timeseries Graph |
14 (1 Low) | 19 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 29/03/2025 10:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 13 (1 Low) | n/m | n/m | n/m | 29/03/2025 09:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 19 (2 Low) *1 | 29/03/2025 10:00 |
| Swindon Walcot Timeseries Graph |
55 (2 Low) | 3 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 29/03/2025 10:00 |
| Yarner Wood Timeseries Graph |
51 (2 Low) | 2 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 29/03/2025 10:00 |
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 |
96 (3 Low) | n/m | n/m | n/m | n/m | 29/03/2025 10:00 |
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 |
49 (2 Low) | 14 (1 Low) | n/m | 5 (1 Low) | 13 (1 Low) *2 | 29/03/2025 10:00 |
| Birmingham Ladywood Timeseries Graph |
59 (2 Low) | 5 (1 Low) | 2 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
43 (2 Low) | 4 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 7 (1 Low) | n/m | 4 (1 Low) | n/m | 29/03/2025 10:00 |
| Coventry Allesley Timeseries Graph |
47 (2 Low) | 6 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 18 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 29/03/2025 10:00 |
| Leamington Spa Timeseries Graph |
53 (2 Low) | 8 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 4 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 29/03/2025 10:00 |
| Leominster Timeseries Graph |
56 (2 Low) | 0 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 29/03/2025 10:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 31 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 29/03/2025 10:00 |
| Stoke-on-Trent Centre Timeseries Graph |
48 (2 Low) | 8 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 29/03/2025 10:00 |
| Telford Hollinswood Timeseries Graph |
65 (2 Low) | 4 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 29/03/2025 10:00 |
| Walsall Woodlands Timeseries Graph |
52 (2 Low) | 5 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
| West Bromwich Kenrick Park Timeseries Graph |
51 (2 Low) | 10 (1 Low) | n/m | n/m | n/m | 29/03/2025 10:00 |
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 |
61 (2 Low) | 11 (1 Low) | 1 (1 Low) | 5 (1 Low) | 11 (1 Low) *2 | 29/03/2025 10:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 16 (1 Low) | n/m | n/m | n/m | 29/03/2025 09:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 17 (2 Low) *2 | 29/03/2025 10:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
56 (2 Low) | 8 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 29/03/2025 10:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 8 (1 Low) | n/m | 6 (1 Low) | n/m | 29/03/2025 10:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 37 (3 Low) *2 | 29/03/2025 10:00 |
| High Muffles Timeseries Graph |
61 (2 Low) | 1 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 29/03/2025 10:00 |
| Hull Freetown Timeseries Graph |
45 (2 Low) | 11 (1 Low) | 3 (1 Low) | 6 (1 Low) | 13 (1 Low) *2 | 29/03/2025 10:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | 6 (1 Low) | 18 (2 Low) *2 | 29/03/2025 10:00 |
| Immingham Woodlands Avenue Timeseries Graph |
51 (2 Low) | 4 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 29/03/2025 10:00 |
| Leeds Centre Timeseries Graph |
60 (2 Low) | 10 (1 Low) | 1 (1 Low) | 6 (1 Low) | 15 (1 Low) *2 | 29/03/2025 10:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 8 (1 Low) | n/m | 8 (1 Low) | 20 (2 Low) *1 | 29/03/2025 10:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 12 (1 Low) *2 | 29/03/2025 10:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 9 (1 Low) | 2 (1 Low) | n/m | 16 (1 Low) *1 | 29/03/2025 10:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 20 (1 Low) | n/m | 5 (1 Low) | n/m | 29/03/2025 10:00 |
| Sheffield Devonshire Green Timeseries Graph |
58 (2 Low) | 6 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 29/03/2025 10:00 |
| Sheffield Tinsley Timeseries Graph |
54 (2 Low) | 13 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 29/03/2025 10:00 |
| York Bootham Timeseries Graph |
42 (2 Low) | 6 (1 Low) | n/m | 6 (1 Low) | 15 (1 Low) *1 | 29/03/2025 10:00 |
| York Fishergate Timeseries Graph |
n/m | 12 (1 Low) | n/m | 4 (1 Low) | 28 (2 Low) *1 | 29/03/2025 10:00 |
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