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 9pm Thu 11th Dec 2025
A
| 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) | 14 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 11/12/2025 21:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 11 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Armagh Roadside Timeseries Graph |
n/m | 48 (1 Low) | n/m | n/m | 20 (2 Low) *1 | 11/12/2025 21:00 |
| Aston Hill Timeseries Graph |
67 (3 Low) | 3 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Auchencorth Moss Timeseries Graph |
72 (3 Low) | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 11/12/2025 21:00 |
| Aylesbury A4157 Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | n/m | 11/12/2025 21:00 |
B
| 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 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 24 (1 Low) | 2 (1 Low) | n/m | n/m | 11/12/2025 21:00 |
| Barnsley Gawber Timeseries Graph |
53 (2 Low) | 14 (1 Low) | 2 (1 Low) | 7 (1 Low) | 12 (1 Low) *2 | 11/12/2025 21:00 |
| Barnstaple A39 Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 11 (1 Low) *2 | 11/12/2025 21:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 12 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Belfast Centre Timeseries Graph |
42 (2 Low) | 31 (1 Low) | 1 (1 Low) | 10 (1 Low) | 17 (2 Low) *2 | 11/12/2025 21:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 58 (1 Low) | n/m | n/m | 26 (2 Low) *1 | 11/12/2025 21:00 |
| Birkenhead Borough Road Timeseries Graph |
n/m | 13 (1 Low) | n/m | 7 (1 Low) | n/m | 11/12/2025 21:00 |
| Birmingham A4540 Roadside Timeseries Graph |
36 (2 Low) | 41 (1 Low) | n/m | 8 (1 Low) | 19 (2 Low) *2 | 11/12/2025 21:00 |
| Birmingham Hall Green Timeseries Graph |
61 (2 Low) | 7 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
| Birmingham Ladywood Timeseries Graph |
n/a | 12 (1 Low) | 1 (1 Low) | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 12 (1 Low) *2 | 11/12/2025 21:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Blackburn Audley Park Timeseries Graph |
48 (2 Low) | n/m | n/m | 8 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Blackpool Marton Timeseries Graph |
45 (2 Low) | 10 (1 Low) | n/m | 8 (1 Low) | 17 (2 Low) *2 | 11/12/2025 21:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | n/m | 11/12/2025 21:00 |
| Borehamwood Meadow Park Timeseries Graph |
n/m | n/a | n/m | 8 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
| Bournemouth Timeseries Graph |
58 (2 Low) | 4 (1 Low) | n/m | 8 (1 Low) | n/m | 11/12/2025 21:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 46 (1 Low) | n/m | n/m | n/m | 11/12/2025 20:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 20 (2 Low) *2 | 11/12/2025 21:00 |
| Brighton Preston Park Timeseries Graph |
51 (2 Low) | 6 (1 Low) | n/m | 8 (1 Low) | 16 (1 Low) *2 | 11/12/2025 21:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Bristol St Paul's Timeseries Graph |
48 (2 Low) | 15 (1 Low) | n/m | 6 (1 Low) | 18 (2 Low) *1 | 11/12/2025 21:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 20 (1 Low) | n/m | 8 (1 Low) | 16 (1 Low) *2 | 11/12/2025 21:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
52 (2 Low) | 18 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 12 (1 Low) | n/m | n/m | 19 (2 Low) *1 | 11/12/2025 21:00 |
| Bush Estate Timeseries Graph |
75 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
C
| 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 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Camden Kerbside Timeseries Graph |
n/m | 29 (1 Low) | n/m | 11 (1 Low) | 24 (2 Low) *1 | 11/12/2025 21:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 8 (1 Low) | n/m | 7 (1 Low) | n/m | 11/12/2025 21:00 |
| Cardiff Centre Timeseries Graph |
53 (2 Low) | 15 (1 Low) | 1 (1 Low) | 9 (1 Low) | 18 (2 Low) *1 | 11/12/2025 21:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 21 (1 Low) | n/m | n/m | 20 (2 Low) *1 | 11/12/2025 21:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 7 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) *1 | 11/12/2025 21:00 |
| Charlton Mackrell Timeseries Graph |
61 (2 Low) | 4 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 11/12/2025 21:00 |
| Chatham Roadside Timeseries Graph |
n/m | 8 (1 Low) | n/m | 7 (1 Low) | 22 (2 Low) *1 | 11/12/2025 21:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 11/12/2025 21:00 |
| Chepstow A48 Timeseries Graph |
n/m | 19 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) *1 | 11/12/2025 21:00 |
| Chesterfield Loundsley Green Timeseries Graph |
51 (2 Low) | 13 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 11 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Chilbolton Observatory Timeseries Graph |
62 (2 Low) | 4 (1 Low) | 1 (1 Low) | 7 (1 Low) | 11 (1 Low) *2 | 11/12/2025 21:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 4 (1 Low) | n/m | 8 (1 Low) | n/m | 11/12/2025 21:00 |
| Coventry Allesley Timeseries Graph |
49 (2 Low) | 11 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 20 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
| Crewe Coppenhall Timeseries Graph |
51 (2 Low) | 14 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Cwmbran Crownbridge Timeseries Graph |
59 (2 Low) | 6 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
D
| 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 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 54 (1 Low) | n/m | 8 (1 Low) | n/m | 11/12/2025 21:00 |
| Derby Stockbrook Park Timeseries Graph |
48 (2 Low) | n/m | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Derry Rosemount Timeseries Graph |
48 (2 Low) | 11 (1 Low) | 5 (1 Low) | 6 (1 Low) | 15 (1 Low) *1 | 11/12/2025 21:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
45 (2 Low) | 45 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 33 (1 Low) | n/m | 9 (1 Low) | n/m | 11/12/2025 21:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 4 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Dumfries Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 8 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
E
| 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 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 22 (2 Low) *1 | 11/12/2025 21:00 |
| Eastbourne Timeseries Graph |
56 (2 Low) | 6 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 12 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Edinburgh St Leonards Timeseries Graph |
66 (2 Low) | 3 (1 Low) | 0 (1 Low) | 8 (1 Low) | 16 (1 Low) *2 | 11/12/2025 21:00 |
| Eskdalemuir Timeseries Graph |
63 (2 Low) | 3 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Exeter Roadside Timeseries Graph |
49 (2 Low) | 12 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
F
| 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 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 12 (1 Low) *2 | 11/12/2025 21:00 |
| Fort William Timeseries Graph |
69 (3 Low) | 7 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
G
| 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 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Glasgow High Street Timeseries Graph |
n/m | 15 (1 Low) | n/m | 10 (1 Low) | 18 (2 Low) *2 | 11/12/2025 21:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 29 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Glasgow Townhead Timeseries Graph |
67 (3 Low) | 21 (1 Low) | n/m | 10 (1 Low) | 18 (2 Low) *2 | 11/12/2025 21:00 |
| Glazebury Timeseries Graph |
52 (2 Low) | 5 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 11/12/2025 21:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Grangemouth Timeseries Graph |
n/m | 3 (1 Low) | 0 (1 Low) | 9 (1 Low) | 17 (2 Low) *1 | 11/12/2025 21:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 4 (1 Low) | n/m | n/m | n/m | 11/12/2025 20:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 11 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) *2 | 11/12/2025 21:00 |
H
| 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 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 30 (1 Low) | n/m | n/m | n/m | 11/12/2025 19:00 |
| Haringey Roadside Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 12 (1 Low) *2 | 11/12/2025 21:00 |
| Hartlepool St Abbs Walk Timeseries Graph |
36 (2 Low) | 18 (1 Low) | n/m | 9 (1 Low) | 16 (1 Low) *2 | 11/12/2025 21:00 |
| High Muffles Timeseries Graph |
51 (2 Low) | 7 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 11/12/2025 21:00 |
| Honiton Timeseries Graph |
61 (2 Low) | 3 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Horley Timeseries Graph |
n/m | 20 (1 Low) | n/m | 8 (1 Low) | 16 (1 Low) *2 | 11/12/2025 21:00 |
| Hull Freetown Timeseries Graph |
43 (2 Low) | 27 (1 Low) | 3 (1 Low) | 9 (1 Low) | 18 (2 Low) *2 | 11/12/2025 21:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 38 (1 Low) | n/m | 9 (1 Low) | 18 (2 Low) *2 | 11/12/2025 21:00 |
I
| 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 |
| Immingham Woodlands Avenue Timeseries Graph |
54 (2 Low) | 15 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 11/12/2025 21:00 |
| Inverness Timeseries Graph |
n/m | 10 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 11/12/2025 21:00 |
K
| 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 |
| Kielder Water Timeseries Graph |
47 (2 Low) | n/m | n/m | 8 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
L
| 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 |
| Ladybower Timeseries Graph |
62 (2 Low) | 9 (1 Low) | 2 (1 Low) | 6 (1 Low) | 10 (1 Low) *2 | 11/12/2025 21:00 |
| Leamington Spa Timeseries Graph |
53 (2 Low) | 10 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 10 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 11/12/2025 21:00 |
| Leeds Centre Timeseries Graph |
32 (1 Low) | 35 (1 Low) | 3 (1 Low) | 8 (1 Low) | 16 (1 Low) *2 | 11/12/2025 21:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 52 (1 Low) | n/m | 10 (1 Low) | 24 (2 Low) *1 | 11/12/2025 21:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 38 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 11/12/2025 21:00 |
| Leicester University Timeseries Graph |
54 (2 Low) | 12 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Leominster Timeseries Graph |
63 (2 Low) | 5 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Lerwick Timeseries Graph |
67 (3 Low) | n/m | n/m | n/m | n/m | 11/12/2025 21:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 16 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Liverpool Speke Timeseries Graph |
50 (2 Low) | 6 (1 Low) | 1 (1 Low) | 6 (1 Low) | 18 (2 Low) *1 | 11/12/2025 21:00 |
| Liverpool Thirlmere Park Timeseries Graph |
46 (2 Low) | n/m | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| London Bexley Timeseries Graph |
n/m | 13 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
| London Bloomsbury Timeseries Graph |
46 (2 Low) | 24 (1 Low) | 2 (1 Low) | 9 (1 Low) | 17 (2 Low) *2 | 11/12/2025 21:00 |
| London Farringdon Street Timeseries Graph |
n/m | 27 (1 Low) | n/m | 10 (1 Low) | n/m | 11/12/2025 21:00 |
| London Haringey Priory Park South Timeseries Graph |
52 (2 Low) | 19 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| London Harlington Timeseries Graph |
33 (1 Low) | 22 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 11/12/2025 21:00 |
| London Hillingdon Timeseries Graph |
21 (1 Low) | 48 (1 Low) | n/m | 8 (1 Low) | 17 (2 Low) *2 | 11/12/2025 21:00 |
| London Honor Oak Park Timeseries Graph |
61 (2 Low) | n/m | n/m | 7 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
| London Marylebone Road Timeseries Graph |
25 (1 Low) | 47 (1 Low) | 2 (1 Low) | 12 (2 Low) | 25 (2 Low) *1 | 11/12/2025 21:00 |
| London N. Kensington Timeseries Graph |
52 (2 Low) | 17 (1 Low) | 1 (1 Low) | 7 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 12 (1 Low) *2 | 11/12/2025 21:00 |
| London Westminster Timeseries Graph |
46 (2 Low) | 24 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Lough Navar Timeseries Graph |
51 (2 Low) | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 11/12/2025 21:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 11 (1 Low) *2 | 11/12/2025 21:00 |
| Lullington Heath Timeseries Graph |
65 (2 Low) | 9 (1 Low) | 2 (1 Low) | n/a | n/a | 11/12/2025 21:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 36 (1 Low) | n/m | 9 (1 Low) | n/m | 11/12/2025 21:00 |
M
| 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 |
85 (3 Low) | n/m | n/m | n/m | n/m | 11/12/2025 21:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 15 (1 Low) *2 | 11/12/2025 21:00 |
| Manchester Piccadilly Timeseries Graph |
41 (2 Low) | 29 (1 Low) | 1 (1 Low) | 9 (1 Low) | 12 (1 Low) *2 | 11/12/2025 21:00 |
| Manchester Sharston Timeseries Graph |
59 (2 Low) | 9 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 12 (1 Low) *2 | 11/12/2025 21:00 |
| Middlesbrough Timeseries Graph |
54 (2 Low) | 11 (1 Low) | 1 (1 Low) | 4 (1 Low) | 16 (1 Low) *1 | 11/12/2025 21:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | n/m | 11/12/2025 21:00 |
| Milton Keynes Civic Centre Timeseries Graph |
48 (2 Low) | n/m | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
N
| 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 |
| Narberth Timeseries Graph |
68 (3 Low) | 2 (1 Low) | 1 (1 Low) | 8 (1 Low) | 15 (1 Low) *2 | 11/12/2025 21:00 |
| Newcastle Centre Timeseries Graph |
31 (1 Low) | 30 (1 Low) | n/m | 9 (1 Low) | 23 (2 Low) *1 | 11/12/2025 21:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 30 (1 Low) | n/m | 8 (1 Low) | 16 (1 Low) *2 | 11/12/2025 21:00 |
| Newport Timeseries Graph |
n/m | 5 (1 Low) | n/m | 7 (1 Low) | 15 (1 Low) *2 | 11/12/2025 21:00 |
| Northampton Spring Park Timeseries Graph |
53 (2 Low) | 13 (1 Low) | n/m | 9 (1 Low) | n/m | 11/12/2025 21:00 |
| Norwich Lakenfields Timeseries Graph |
52 (2 Low) | 7 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
40 (2 Low) | 25 (1 Low) | 1 (1 Low) | 8 (1 Low) | 16 (1 Low) *2 | 11/12/2025 21:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 18 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
O
| 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 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 18 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 20/08/2025 08:00 |
| Oxford St Ebbes Timeseries Graph |
48 (2 Low) | 17 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 11/12/2025 21:00 |
P
| 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 |
| Peebles Timeseries Graph |
73 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 6 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Plymouth Centre Timeseries Graph |
58 (2 Low) | 9 (1 Low) | n/m | 11 (1 Low) | 26 (2 Low) *2 | 11/12/2025 21:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 8 (1 Low) | n/m | n/m | n/m | 11/12/2025 20:00 |
| Port Talbot Margam Timeseries Graph |
57 (2 Low) | 6 (1 Low) | 1 (1 Low) | 5 (1 Low) | 19 (2 Low) *3 | 11/12/2025 21:00 |
| Portsmouth Timeseries Graph |
53 (2 Low) | 7 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 11/12/2025 21:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 13 (1 Low) | n/m | 8 (1 Low) | 16 (1 Low) *2 | 11/12/2025 21:00 |
| Preston Timeseries Graph |
50 (2 Low) | 9 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
R
| 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 |
| Reading London Road Timeseries Graph |
n/m | 6 (1 Low) | n/m | n/m | 19 (2 Low) *1 | 11/12/2025 21:00 |
| Reading New Town Timeseries Graph |
50 (2 Low) | 6 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 11/12/2025 21:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | n/m | 11/12/2025 21:00 |
| Rochester Stoke Timeseries Graph |
61 (2 Low) | 7 (1 Low) | 1 (1 Low) | 8 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
S
| 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 |
| Salford Eccles Timeseries Graph |
51 (2 Low) | 18 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) *2 | 11/12/2025 21:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 23 (2 Low) *1 | 11/12/2025 21:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 25 (1 Low) | 1 (1 Low) | 9 (1 Low) | 18 (2 Low) *1 | 11/12/2025 21:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 10 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 31 (1 Low) | n/m | 7 (1 Low) | n/m | 11/12/2025 21:00 |
| Sheffield Devonshire Green Timeseries Graph |
42 (2 Low) | 21 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Sheffield Tinsley Timeseries Graph |
39 (2 Low) | 23 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 11 (1 Low) *2 | 11/12/2025 21:00 |
| Sibton Timeseries Graph |
57 (2 Low) | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 11/12/2025 21:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 16 (1 Low) *2 | 11/12/2025 21:00 |
| Southampton A33 Timeseries Graph |
n/m | 31 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 11/12/2025 21:00 |
| Southampton Centre Timeseries Graph |
35 (2 Low) | 21 (1 Low) | 2 (1 Low) | 10 (1 Low) | 19 (2 Low) *2 | 11/12/2025 21:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Southend-on-Sea Timeseries Graph |
54 (2 Low) | 11 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 13 (1 Low) | n/m | n/m | 21 (2 Low) *1 | 11/12/2025 21:00 |
| St Helens Linkway Timeseries Graph |
n/m | 21 (1 Low) | n/m | n/m | 26 (2 Low) *1 | 11/12/2025 21:00 |
| St Osyth Timeseries Graph |
66 (2 Low) | 4 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 10 (1 Low) | n/m | 11 (1 Low) | 18 (2 Low) *1 | 11/12/2025 21:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 12 (1 Low) | n/m | 7 (1 Low) | n/m | 11/12/2025 21:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 12 (1 Low) | n/m | 8 (1 Low) | n/a | 11/12/2025 21:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 25 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
| Stoke-on-Trent Centre Timeseries Graph |
43 (2 Low) | 14 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
| Storrington Roadside Timeseries Graph |
n/m | 7 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 11/12/2025 21:00 |
| Strathvaich Timeseries Graph |
73 (3 Low) | n/m | n/m | n/m | n/m | 11/12/2025 21:00 |
| Sunderland Silksworth Timeseries Graph |
44 (2 Low) | 13 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 17 (1 Low) | n/m | 8 (1 Low) | n/m | 11/12/2025 21:00 |
| Swansea Roadside Timeseries Graph |
n/m | 23 (1 Low) | n/m | 7 (1 Low) | 23 (2 Low) *1 | 11/12/2025 21:00 |
| Swindon Walcot Timeseries Graph |
62 (2 Low) | 4 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 11/12/2025 21:00 |
T
| 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 |
| Tallington Timeseries Graph |
52 (2 Low) | n/m | n/m | 8 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 11/12/2025 21:00 |
| Telford Hollinswood Timeseries Graph |
59 (2 Low) | 9 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 11/12/2025 21:00 |
| Thurrock Timeseries Graph |
53 (2 Low) | 13 (1 Low) | 2 (1 Low) | 7 (1 Low) | 14 (1 Low) *2 | 11/12/2025 21:00 |
| Toft Newton Timeseries Graph |
49 (2 Low) | 8 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 11/12/2025 21:00 |
W
| 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 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 15 (1 Low) *2 | 11/12/2025 21:00 |
| Walsall Woodlands Timeseries Graph |
56 (2 Low) | 11 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Warrington Timeseries Graph |
n/m | 12 (1 Low) | n/m | 8 (1 Low) | 18 (2 Low) *1 | 11/12/2025 21:00 |
| West Bromwich Kenrick Park Timeseries Graph |
57 (2 Low) | 9 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Weybourne Timeseries Graph |
52 (2 Low) | n/m | n/m | 7 (1 Low) | 10 (1 Low) *2 | 11/12/2025 21:00 |
| Wicken Fen Timeseries Graph |
52 (2 Low) | 7 (1 Low) | 2 (1 Low) | 7 (1 Low) | 11 (1 Low) *2 | 11/12/2025 21:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | n/m | 11/12/2025 21:00 |
| Wigan Centre Timeseries Graph |
42 (2 Low) | 13 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 11/12/2025 21:00 |
| Wirral Tranmere Timeseries Graph |
52 (2 Low) | 12 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 11/12/2025 21:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 13 (1 Low) *2 | 11/12/2025 21:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 14 (1 Low) | n/m | 12 (2 Low) | n/m | 11/12/2025 21:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 22 (2 Low) *2 | 11/12/2025 21:00 |
| Wrexham Timeseries Graph |
n/m | 18 (1 Low) | 1 (1 Low) | 6 (1 Low) | 11 (1 Low) *2 | 11/12/2025 21:00 |
Y
| 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 |
| Yarner Wood Timeseries Graph |
64 (2 Low) | 3 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 11/12/2025 21:00 |
| York Bootham Timeseries Graph |
42 (2 Low) | 10 (1 Low) | n/m | 10 (1 Low) | 21 (2 Low) *1 | 11/12/2025 21:00 |
| York Fishergate Timeseries Graph |
n/m | 15 (1 Low) | n/m | 7 (1 Low) | 28 (2 Low) *1 | 11/12/2025 21:00 |
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