24 Hour Summary, based on data provided by Environment Agency
Here you can view the detailed data behind the latest measurement summary displayed on UK-AIR, and also a summary of information that has been displayed over the previous 24 hours. The detailed data tabulated below are from monitoring sites within the AURN. Graphs of hourly monitoring data are also available to view as weekly time series. You can also subscribe to this information as an email alert.
- View the legend
- Maximum pollutant levels displayed on UK-AIR for the 24 hour period up to 8pm Sat 31st Oct 2026
A
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Aberdeen Erroll Park Timeseries Graph |
42 (2 Low) | 39 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *2 | 31/10/2026 20:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 30 (1 Low) | n/m | n/m | n/m | 31/10/2026 08:00 |
| Armagh Roadside Timeseries Graph |
n/m | 53 (1 Low) | n/m | n/m | 22 (2 Low) *1 | 31/10/2026 09:00 |
| Ashington Centre Timeseries Graph |
n/m | n/m | n/m | 23 (2 Low) | 27 (2 Low) *2 | 31/10/2026 13:00 |
| Aston Hill Timeseries Graph |
51 (2 Low) | 9 (1 Low) | n/m | n/m | n/m | 30/10/2026 21:00 |
| Auchencorth Moss Timeseries Graph |
55 (2 Low) | n/m | n/m | 11 (1 Low) | 13 (1 Low) *2 | 31/10/2026 20:00 |
| Aylesbury A4157 Timeseries Graph |
n/m | n/m | n/m | 17 (2 Low) | n/m | 31/10/2026 20:00 |
B
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Ballymena Antrim Road Timeseries Graph |
n/m | 29 (1 Low) | n/m | n/m | n/m | 30/10/2026 21:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 18 (1 Low) | 20 (1 Low) | n/m | n/m | 31/10/2026 18:45 |
| Barnsley Gawber Timeseries Graph |
36 (2 Low) | 35 (1 Low) | 2 (1 Low) | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| Barnstaple A39 Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 16 (1 Low) *2 | 31/10/2026 20:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | n/m | 31/10/2026 18:00 |
| Bedworth Collycroft Timeseries Graph |
n/m | n/m | n/m | n/a | n/a | 07/10/2026 24:00 |
| Belfast Centre Timeseries Graph |
63 (2 Low) | 37 (1 Low) | 2 (1 Low) | 11 (1 Low) | 20 (2 Low) *2 | 31/10/2026 13:15 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 61 (1 Low) | n/m | n/m | 28 (2 Low) *1 | 31/10/2026 18:00 |
| Birkenhead Borough Road Timeseries Graph |
n/m | 43 (1 Low) | n/m | 22 (2 Low) | n/m | 31/10/2026 20:00 |
| Birmingham A4540 Roadside Timeseries Graph |
33 (1 Low) | 69 (2 Low) | n/m | 23 (2 Low) | 28 (2 Low) *2 | 31/10/2026 20:00 |
| Birmingham Hall Green Timeseries Graph |
42 (2 Low) | 47 (1 Low) | n/m | 21 (2 Low) | 31 (2 Low) *2 | 31/10/2026 20:00 |
| Birmingham Ladywood Timeseries Graph |
38 (2 Low) | 52 (1 Low) | 5 (1 Low) | 21 (2 Low) | 26 (2 Low) *2 | 31/10/2026 19:30 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 62 (1 Low) | n/m | n/m | n/m | 31/10/2026 19:00 |
| Blackburn Audley Park Timeseries Graph |
31 (1 Low) | n/m | n/m | 16 (2 Low) | 20 (2 Low) *2 | 31/10/2026 20:00 |
| Blackpool Marton Timeseries Graph |
35 (2 Low) | 40 (1 Low) | n/m | 20 (2 Low) | 24 (2 Low) *2 | 31/10/2026 20:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 23 (2 Low) | n/m | 31/10/2026 20:00 |
| Borehamwood Meadow Park Timeseries Graph |
n/m | 40 (1 Low) | n/m | 19 (2 Low) | 23 (2 Low) *2 | 31/10/2026 20:00 |
| Bournemouth Timeseries Graph |
53 (2 Low) | 37 (1 Low) | n/m | 16 (2 Low) | n/m | 31/10/2026 20:00 |
| Bournemouth Bourne Valley Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 61 (1 Low) | n/m | n/m | n/m | 31/10/2026 19:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 21 (2 Low) | 27 (2 Low) *2 | 31/10/2026 20:00 |
| Bradford West Park Timeseries Graph |
n/m | n/m | n/m | 24 (3 Low) | 29 (2 Low) *2 | 31/10/2026 20:00 |
| Bridgwater A372 Westonzoyland Timeseries Graph |
n/m | n/m | n/m | 22 (2 Low) | n/m | 31/10/2026 20:00 |
| Brighton Preston Park Timeseries Graph |
43 (2 Low) | 61 (1 Low) | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 21 (2 Low) | 25 (2 Low) *2 | 31/10/2026 20:00 |
| Bristol St Paul's Timeseries Graph |
n/a | 46 (1 Low) | n/m | 23 (2 Low) | 32 (2 Low) *1 | 31/10/2026 20:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 49 (1 Low) | n/m | 24 (3 Low) | 31 (2 Low) *2 | 31/10/2026 20:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
38 (2 Low) | 44 (1 Low) | n/m | 19 (2 Low) | 23 (2 Low) *2 | 31/10/2026 18:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 44 (1 Low) | n/m | n/m | 24 (2 Low) *1 | 31/10/2026 18:00 |
| Bush Estate Timeseries Graph |
63 (2 Low) | 7 (1 Low) | n/m | n/m | n/m | 30/10/2026 21:00 |
C
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 17 (2 Low) *2 | 31/10/2026 20:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 38 (1 Low) | n/m | n/m | n/m | 30/10/2026 22:00 |
| Camden Kerbside Timeseries Graph |
n/m | 43 (1 Low) | n/m | 23 (2 Low) | 32 (2 Low) *1 | 31/10/2026 20:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 48 (1 Low) | n/m | 18 (2 Low) | n/m | 31/10/2026 20:00 |
| Cardiff Centre Timeseries Graph |
n/a | 41 (1 Low) | 1 (1 Low) | n/a | 23 (2 Low) *1 | 31/10/2026 18:45 |
| Cardiff Newport Road Timeseries Graph |
n/m | 58 (1 Low) | n/m | n/m | 25 (2 Low) *1 | 31/10/2026 19:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 35 (1 Low) | n/m | 19 (2 Low) | 23 (2 Low) *1 | 31/10/2026 20:00 |
| Charlton Mackrell Timeseries Graph |
53 (2 Low) | 11 (1 Low) | n/m | 19 (2 Low) | 24 (2 Low) *2 | 31/10/2026 20:00 |
| Chatham Roadside Timeseries Graph |
n/m | 36 (1 Low) | n/m | 18 (2 Low) | 33 (2 Low) *1 | 31/10/2026 20:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 27 (3 Low) | n/m | 31/10/2026 18:00 |
| Chepstow A48 Timeseries Graph |
n/m | 35 (1 Low) | n/m | 16 (2 Low) | 19 (2 Low) *1 | 31/10/2026 20:00 |
| Chesterfield Loundsley Green Timeseries Graph |
40 (2 Low) | 24 (1 Low) | n/m | 18 (2 Low) | 21 (2 Low) *2 | 31/10/2026 20:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 32 (1 Low) | n/m | 20 (2 Low) | 24 (2 Low) *2 | 31/10/2026 20:00 |
| Chilbolton Observatory Timeseries Graph |
51 (2 Low) | 21 (1 Low) | 1 (1 Low) | 16 (2 Low) | 20 (2 Low) *2 | 31/10/2026 03:30 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 59 (1 Low) | n/m | 16 (2 Low) | n/m | 31/10/2026 20:00 |
| Coventry Allesley Timeseries Graph |
37 (2 Low) | 40 (1 Low) | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 49 (1 Low) | n/m | 20 (2 Low) | 25 (2 Low) *2 | 31/10/2026 20:00 |
| Crewe Coppenhall Timeseries Graph |
40 (2 Low) | 46 (1 Low) | n/m | 20 (2 Low) | 24 (2 Low) *2 | 31/10/2026 20:00 |
| Cwmbran Crownbridge Timeseries Graph |
46 (2 Low) | 26 (1 Low) | n/m | n/m | n/m | 31/10/2026 17:00 |
D
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Darlington Firthmoor Timeseries Graph |
n/m | n/m | n/m | 23 (2 Low) | 26 (2 Low) *2 | 31/10/2026 20:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 51 (1 Low) | n/m | 21 (2 Low) | n/m | 31/10/2026 20:00 |
| Derby Stockbrook Park Timeseries Graph |
32 (1 Low) | n/m | n/m | 21 (2 Low) | 25 (2 Low) *2 | 31/10/2026 20:00 |
| Derry Rosemount Timeseries Graph |
56 (2 Low) | 13 (1 Low) | 3 (1 Low) | 7 (1 Low) | 16 (1 Low) *1 | 30/10/2026 23:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
34 (2 Low) | 47 (1 Low) | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 53 (1 Low) | n/m | 19 (2 Low) | n/m | 31/10/2026 13:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 20 (1 Low) | n/m | n/m | n/m | 30/10/2026 23:00 |
| Dumfries Timeseries Graph |
n/m | 34 (1 Low) | n/m | n/m | n/m | 31/10/2026 20:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | n/m | 30/10/2026 21:00 |
E
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 36 (3 Low) *1 | 31/10/2026 11:00 |
| Eastbourne Timeseries Graph |
47 (2 Low) | 30 (1 Low) | n/m | 17 (2 Low) | 21 (2 Low) *2 | 31/10/2026 20:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 49 (1 Low) | n/m | n/m | n/m | 30/10/2026 21:00 |
| Edinburgh St Leonards Timeseries Graph |
45 (2 Low) | 42 (1 Low) | 2 (1 Low) | 13 (2 Low) | 17 (2 Low) *2 | 31/10/2026 13:00 |
| Eskdalemuir Timeseries Graph |
46 (2 Low) | 6 (1 Low) | n/m | n/m | n/m | 31/10/2026 20:00 |
| Exeter Roadside Timeseries Graph |
38 (2 Low) | 50 (1 Low) | n/m | n/m | n/m | 30/10/2026 21:00 |
F
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 24 (2 Low) *2 | 31/10/2026 20:00 |
| Fort William Timeseries Graph |
61 (2 Low) | 17 (1 Low) | n/m | n/m | n/m | 30/10/2026 21:00 |
G
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Glasgow Great Western Road Timeseries Graph |
n/m | 58 (1 Low) | n/m | n/m | n/m | 30/10/2026 21:00 |
| Glasgow High Street Timeseries Graph |
n/m | 46 (1 Low) | n/m | 17 (2 Low) | 23 (2 Low) *2 | 31/10/2026 20:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 64 (1 Low) | n/m | n/m | n/m | 30/10/2026 21:00 |
| Glasgow Townhead Timeseries Graph |
37 (2 Low) | 44 (1 Low) | n/m | 14 (2 Low) | 19 (2 Low) *2 | 31/10/2026 20:00 |
| Glazebury Timeseries Graph |
42 (2 Low) | 33 (1 Low) | n/m | 16 (2 Low) | 19 (2 Low) *2 | 31/10/2026 20:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 24 (3 Low) | 30 (2 Low) *2 | 31/10/2026 20:00 |
| Grangemouth Timeseries Graph |
n/m | 29 (1 Low) | 2 (1 Low) | 14 (2 Low) | 20 (2 Low) *1 | 31/10/2026 09:30 |
| Grangemouth Moray Timeseries Graph |
n/m | 35 (1 Low) | n/m | n/m | n/m | 30/10/2026 24:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 10 (1 Low) | n/m | 12 (2 Low) | 17 (2 Low) *2 | 31/10/2026 18:00 |
H
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 32 (1 Low) | n/m | n/m | n/m | 30/10/2026 21:00 |
| Haringey Roadside Timeseries Graph |
n/m | 39 (1 Low) | n/m | n/m | n/m | 31/10/2026 20:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 23 (2 Low) *2 | 31/10/2026 20:00 |
| Hartlepool St Abbs Walk Timeseries Graph |
39 (2 Low) | 31 (1 Low) | n/m | 22 (2 Low) | 25 (2 Low) *2 | 31/10/2026 20:00 |
| High Muffles Timeseries Graph |
43 (2 Low) | 11 (1 Low) | n/m | 11 (1 Low) | 13 (1 Low) *2 | 31/10/2026 20:00 |
| Honiton Timeseries Graph |
50 (2 Low) | 29 (1 Low) | n/m | 17 (2 Low) | 20 (2 Low) *2 | 31/10/2026 20:00 |
| Horley Timeseries Graph |
n/m | 32 (1 Low) | n/m | 18 (2 Low) | 23 (2 Low) *2 | 31/10/2026 20:00 |
| Hull Freetown Timeseries Graph |
31 (1 Low) | 44 (1 Low) | 5 (1 Low) | 22 (2 Low) | 27 (2 Low) *2 | 30/10/2026 20:30 |
| Hull Holderness Road Timeseries Graph |
n/m | 50 (1 Low) | n/m | 26 (3 Low) | 33 (2 Low) *2 | 31/10/2026 12:00 |
I
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Immingham Woodlands Avenue Timeseries Graph |
40 (2 Low) | 34 (1 Low) | n/m | 16 (2 Low) | 18 (2 Low) *2 | 31/10/2026 20:00 |
| Inverness Timeseries Graph |
n/m | 25 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 30/10/2026 24:00 |
K
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Kielder Water Timeseries Graph |
40 (2 Low) | n/m | n/m | 7 (1 Low) | 9 (1 Low) *2 | 31/10/2026 20:00 |
L
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Ladybower Timeseries Graph |
34 (2 Low) | 37 (1 Low) | 11 (1 Low) | 14 (2 Low) | 17 (2 Low) *2 | 31/10/2026 15:30 |
| Leamington Spa Timeseries Graph |
44 (2 Low) | 34 (1 Low) | n/m | 19 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 30 (1 Low) | n/m | 18 (2 Low) | 21 (2 Low) *2 | 31/10/2026 20:00 |
| Leeds Centre Timeseries Graph |
26 (1 Low) | 55 (1 Low) | 8 (1 Low) | 22 (2 Low) | 27 (2 Low) *2 | 31/10/2026 02:45 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 48 (1 Low) | n/m | 25 (3 Low) | 30 (2 Low) *1 | 31/10/2026 20:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 47 (1 Low) | n/m | 20 (2 Low) | 24 (2 Low) *2 | 31/10/2026 20:00 |
| Leicester University Timeseries Graph |
44 (2 Low) | 34 (1 Low) | n/m | 16 (2 Low) | 19 (2 Low) *2 | 31/10/2026 20:00 |
| Leominster Timeseries Graph |
41 (2 Low) | 29 (1 Low) | n/m | n/m | n/m | 31/10/2026 18:00 |
| Lerwick Timeseries Graph |
70 (3 Low) | n/m | n/m | n/m | n/m | 31/10/2026 09:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 65 (1 Low) | n/m | n/m | n/m | 31/10/2026 19:00 |
| Liverpool Speke Timeseries Graph |
38 (2 Low) | 39 (1 Low) | 4 (1 Low) | 18 (2 Low) | 26 (2 Low) *1 | 31/10/2026 16:45 |
| Liverpool Thirlmere Park Timeseries Graph |
34 (2 Low) | n/m | n/m | 21 (2 Low) | 25 (2 Low) *2 | 31/10/2026 20:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | n/m | 31/10/2026 20:00 |
| London Bexley Timeseries Graph |
n/m | 42 (1 Low) | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 17:00 |
| London Bloomsbury Timeseries Graph |
27 (1 Low) | 42 (1 Low) | 3 (1 Low) | 18 (2 Low) | 23 (2 Low) *2 | 31/10/2026 12:00 |
| London Farringdon Street Timeseries Graph |
n/m | 45 (1 Low) | n/m | 24 (3 Low) | n/m | 31/10/2026 20:00 |
| London Haringey Priory Park South Timeseries Graph |
38 (2 Low) | 38 (1 Low) | n/m | 19 (2 Low) | 23 (2 Low) *2 | 31/10/2026 20:00 |
| London Harlington Timeseries Graph |
33 (1 Low) | 46 (1 Low) | n/m | 17 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| London Hillingdon Timeseries Graph |
31 (1 Low) | 55 (1 Low) | n/m | 21 (2 Low) | 28 (2 Low) *2 | 31/10/2026 20:00 |
| London Honor Oak Park Timeseries Graph |
43 (2 Low) | n/m | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| London Marylebone Road Timeseries Graph |
33 (1 Low) | 49 (1 Low) | 2 (1 Low) | 24 (3 Low) | 30 (2 Low) *1 | 31/10/2026 18:30 |
| London N. Kensington Timeseries Graph |
43 (2 Low) | 46 (1 Low) | 2 (1 Low) | 20 (2 Low) | 24 (2 Low) *2 | 31/10/2026 13:15 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | 23 (2 Low) *2 | 31/10/2026 20:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | 23 (2 Low) *2 | 31/10/2026 20:00 |
| London Westminster Timeseries Graph |
36 (2 Low) | 48 (1 Low) | n/m | n/m | n/m | 30/10/2026 21:00 |
| Lough Navar Timeseries Graph |
50 (2 Low) | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 31/10/2026 07:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 24 (2 Low) *2 | 31/10/2026 20:00 |
| Lullington Heath Timeseries Graph |
52 (2 Low) | 19 (1 Low) | 1 (1 Low) | 14 (2 Low) | 18 (2 Low) *2 | 31/10/2026 15:30 |
| Luton A505 Roadside Timeseries Graph |
n/m | 46 (1 Low) | n/m | 19 (2 Low) | n/m | 31/10/2026 20:00 |
M
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Mace Head Timeseries Graph |
69 (3 Low) | n/m | n/m | n/m | n/m | 30/10/2026 20:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 22 (2 Low) | 31 (2 Low) *2 | 31/10/2026 20:00 |
| Manchester Piccadilly Timeseries Graph |
19 (1 Low) | 55 (1 Low) | 6 (1 Low) | 22 (2 Low) | 29 (2 Low) *2 | 31/10/2026 19:45 |
| Manchester Sharston Timeseries Graph |
32 (1 Low) | 38 (1 Low) | n/m | 16 (2 Low) | 24 (2 Low) *2 | 31/10/2026 16:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 24 (2 Low) *2 | 31/10/2026 20:00 |
| Middlesbrough Timeseries Graph |
39 (2 Low) | 41 (1 Low) | 1 (1 Low) | 15 (2 Low) | 19 (2 Low) *1 | 30/10/2026 20:30 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 22 (2 Low) | n/m | 31/10/2026 20:00 |
| Milton Keynes Civic Centre Timeseries Graph |
n/a | n/m | n/m | 20 (2 Low) | 24 (2 Low) *2 | 31/10/2026 20:00 |
N
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Narberth Timeseries Graph |
54 (2 Low) | 11 (1 Low) | 1 (1 Low) | 16 (2 Low) | 21 (2 Low) *2 | 31/10/2026 06:15 |
| Newcastle Centre Timeseries Graph |
28 (1 Low) | 31 (1 Low) | n/m | 17 (2 Low) | 24 (2 Low) *1 | 31/10/2026 11:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 57 (1 Low) | n/m | 19 (2 Low) | 24 (2 Low) *2 | 31/10/2026 13:00 |
| Newport Timeseries Graph |
n/m | 42 (1 Low) | n/m | 16 (2 Low) | 21 (2 Low) *2 | 31/10/2026 20:00 |
| North Shields Chirton Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 23 (2 Low) *2 | 31/10/2026 13:00 |
| Northampton Spring Park Timeseries Graph |
34 (2 Low) | 26 (1 Low) | n/m | 21 (2 Low) | n/m | 31/10/2026 20:00 |
| Norwich Lakenfields Timeseries Graph |
34 (2 Low) | 40 (1 Low) | n/m | 16 (2 Low) | 19 (2 Low) *2 | 31/10/2026 20:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 23 (2 Low) *2 | 31/10/2026 18:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
35 (2 Low) | 30 (1 Low) | 3 (1 Low) | 25 (3 Low) | 29 (2 Low) *2 | 31/10/2026 19:30 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 54 (1 Low) | n/m | 22 (2 Low) | 27 (2 Low) *2 | 31/10/2026 20:00 |
O
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 65 (1 Low) | n/m | 29 (3 Low) | 37 (3 Low) *2 | 31/10/2026 17:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 45 (1 Low) | n/m | n/m | n/m | 30/10/2026 22:00 |
| Oxford St Ebbes Timeseries Graph |
40 (2 Low) | 31 (1 Low) | n/m | 13 (2 Low) | 17 (2 Low) *2 | 31/10/2026 20:00 |
P
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Peebles Timeseries Graph |
47 (2 Low) | 23 (1 Low) | n/m | n/m | n/m | 30/10/2026 21:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 30/10/2026 22:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 25 (3 Low) | 29 (2 Low) *2 | 31/10/2026 20:00 |
| Plymouth Centre Timeseries Graph |
45 (2 Low) | 45 (1 Low) | n/m | 12 (2 Low) | 18 (2 Low) *2 | 31/10/2026 20:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 19 (1 Low) | n/m | n/m | n/m | 31/10/2026 18:00 |
| Port Talbot Margam Timeseries Graph |
45 (2 Low) | 31 (1 Low) | 2 (1 Low) | 16 (2 Low) | 23 (2 Low) *3 | 31/10/2026 16:30 |
| Portsmouth Timeseries Graph |
39 (2 Low) | 51 (1 Low) | n/m | 14 (2 Low) | 18 (2 Low) *2 | 31/10/2026 20:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 55 (1 Low) | n/m | 17 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| Preston Timeseries Graph |
31 (1 Low) | 57 (1 Low) | n/m | 19 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
R
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Reading London Road Timeseries Graph |
n/m | 52 (1 Low) | n/m | n/m | 24 (2 Low) *1 | 31/10/2026 17:00 |
| Reading New Town Timeseries Graph |
33 (1 Low) | 47 (1 Low) | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | n/m | 31/10/2026 20:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| Rochdale Belfield Timeseries Graph |
n/m | n/m | n/m | 17 (2 Low) | 21 (2 Low) *2 | 31/10/2026 20:00 |
| Rochester Stoke Timeseries Graph |
55 (2 Low) | 41 (1 Low) | 3 (1 Low) | 19 (2 Low) | 23 (2 Low) *2 | 31/10/2026 10:45 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 23 (2 Low) *2 | 31/10/2026 20:00 |
S
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Salford Eccles Timeseries Graph |
31 (1 Low) | 57 (1 Low) | n/m | 19 (2 Low) | 24 (2 Low) *2 | 31/10/2026 19:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 20 (2 Low) *1 | 31/10/2026 20:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 42 (1 Low) | 5 (1 Low) | 17 (2 Low) | 23 (2 Low) *1 | 30/10/2026 22:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 45 (1 Low) | n/m | n/m | n/m | 31/10/2026 17:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 59 (1 Low) | n/m | 20 (2 Low) | n/m | 31/10/2026 20:00 |
| Sheffield Devonshire Green Timeseries Graph |
36 (2 Low) | 43 (1 Low) | n/m | 18 (2 Low) | 21 (2 Low) *2 | 31/10/2026 20:00 |
| Sheffield Tinsley Timeseries Graph |
29 (1 Low) | 47 (1 Low) | n/m | 16 (2 Low) | 24 (2 Low) *2 | 31/10/2026 20:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 21 (2 Low) *2 | 31/10/2026 20:00 |
| Sibton Timeseries Graph |
51 (2 Low) | n/m | n/m | n/a | n/a | 20/10/2026 24:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 22 (2 Low) | 30 (2 Low) *2 | 31/10/2026 20:00 |
| Southampton A33 Timeseries Graph |
n/m | 58 (1 Low) | n/m | 15 (2 Low) | 19 (2 Low) *2 | 31/10/2026 20:00 |
| Southampton Centre Timeseries Graph |
35 (2 Low) | 61 (1 Low) | 3 (1 Low) | 18 (2 Low) | 23 (2 Low) *2 | 31/10/2026 18:15 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | n/a | n/a | 08/09/2026 24:00 |
| Southend-on-Sea Timeseries Graph |
49 (2 Low) | 37 (1 Low) | n/m | 20 (2 Low) | 25 (2 Low) *2 | 31/10/2026 20:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 59 (1 Low) | n/m | n/m | 36 (3 Low) *1 | 31/10/2026 19:00 |
| St Helens Linkway Timeseries Graph |
n/m | 60 (1 Low) | n/m | n/m | 33 (2 Low) *1 | 30/10/2026 19:00 |
| St Osyth Timeseries Graph |
58 (2 Low) | 23 (1 Low) | n/m | 17 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 41 (1 Low) | n/m | 26 (3 Low) | 22 (2 Low) *1 | 31/10/2026 19:00 |
| Stevenage St Georges Way South Timeseries Graph |
n/m | n/m | n/m | n/a | n/m | 03/09/2026 24:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 36 (1 Low) | n/m | 20 (2 Low) | n/m | 31/10/2026 20:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 14 (1 Low) | n/m | 23 (2 Low) | 25 (2 Low) *1 | 31/10/2026 20:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 75 (2 Low) | n/m | 22 (2 Low) | 27 (2 Low) *2 | 31/10/2026 20:00 |
| Stoke-on-Trent Centre Timeseries Graph |
32 (1 Low) | 48 (1 Low) | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| Storrington Roadside Timeseries Graph |
n/m | 50 (1 Low) | n/m | 19 (2 Low) | 24 (2 Low) *2 | 31/10/2026 16:00 |
| Strathvaich Timeseries Graph |
64 (2 Low) | n/m | n/m | n/m | n/m | 30/10/2026 21:00 |
| Sunderland Silksworth Timeseries Graph |
42 (2 Low) | 24 (1 Low) | n/m | 22 (2 Low) | 25 (2 Low) *2 | 31/10/2026 20:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 28 (1 Low) | n/m | 20 (2 Low) | n/m | 31/10/2026 20:00 |
| Swansea Roadside Timeseries Graph |
n/m | n/a | n/m | n/a | n/a | 22/10/2026 24:00 |
| Swindon Walcot Timeseries Graph |
42 (2 Low) | 42 (1 Low) | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
T
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Tallington Timeseries Graph |
34 (2 Low) | n/m | n/m | 16 (2 Low) | 18 (2 Low) *2 | 31/10/2026 17:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 16 (2 Low) | n/m | 31/10/2026 20:00 |
| Telford Hollinswood Timeseries Graph |
39 (2 Low) | 40 (1 Low) | n/m | 18 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| Thurrock Timeseries Graph |
43 (2 Low) | 41 (1 Low) | 3 (1 Low) | 20 (2 Low) | 26 (2 Low) *2 | 31/10/2026 07:45 |
| Toft Newton Timeseries Graph |
48 (2 Low) | 8 (1 Low) | n/m | 13 (2 Low) | 16 (1 Low) *2 | 31/10/2026 17:00 |
W
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 33 (3 Low) | 39 (3 Low) *2 | 31/10/2026 17:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 25 (2 Low) *2 | 31/10/2026 20:00 |
| Walsall Woodlands Timeseries Graph |
36 (2 Low) | 30 (1 Low) | n/m | n/m | n/m | 31/10/2026 16:00 |
| Warrington St. Peter's Park Timeseries Graph |
n/m | 55 (1 Low) | n/m | 23 (2 Low) | 27 (2 Low) *2 | 31/10/2026 20:00 |
| West Bromwich Kenrick Park Timeseries Graph |
30 (1 Low) | 56 (1 Low) | n/m | n/m | n/m | 31/10/2026 16:00 |
| Weybourne Timeseries Graph |
44 (2 Low) | n/m | n/m | 15 (2 Low) | 18 (2 Low) *2 | 31/10/2026 20:00 |
| Wicken Fen Timeseries Graph |
38 (2 Low) | 20 (1 Low) | 2 (1 Low) | 11 (1 Low) | 14 (1 Low) *2 | 31/10/2026 16:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 56 (1 Low) | n/m | n/m | n/m | 31/10/2026 18:00 |
| Wigan Centre Timeseries Graph |
35 (2 Low) | 52 (1 Low) | n/m | 24 (3 Low) | 30 (2 Low) *2 | 31/10/2026 20:00 |
| Wigston Centre Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| Wirral Tranmere Timeseries Graph |
40 (2 Low) | 39 (1 Low) | n/m | 22 (2 Low) | 26 (2 Low) *2 | 31/10/2026 20:00 |
| Wolverhampton East Park Timeseries Graph |
n/m | n/m | n/m | 25 (3 Low) | 31 (2 Low) *2 | 31/10/2026 20:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | 23 (2 Low) *2 | 31/10/2026 20:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | 20 (2 Low) | n/m | 31/10/2026 20:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 17 (2 Low) | 22 (2 Low) *2 | 31/10/2026 20:00 |
| Wrexham Timeseries Graph |
n/m | 39 (1 Low) | 2 (1 Low) | 16 (2 Low) | 19 (2 Low) *2 | 31/10/2026 20:00 |
Y
| 24 Hour Summary, based on data provided by Environment Agency | ||||||
|---|---|---|---|---|---|---|
| Monitoring site | Running 8 Hour mean Ozone (µgm-3) |
Hourly mean Nitrogen dioxide (µgm-3) |
Max 15 min mean Sulphur dioxide (µgm-3) |
Running 24 Hour mean PM2.5 Particles (µgm-3) |
Running 24 Hour mean PM10 Particles (µgm-3) |
Last updated |
| Yarner Wood Timeseries Graph |
66 (2 Low) | 8 (1 Low) | n/m | 11 (1 Low) | 16 (1 Low) *2 | 31/10/2026 20:00 |
| York Bootham Timeseries Graph |
n/a | n/a | n/m | n/a | n/a | 25/10/2026 24:00 |
| York Fishergate Timeseries Graph |
n/m | 38 (1 Low) | n/m | 17 (2 Low) | 26 (2 Low) *1 | 31/10/2026 14:00 |
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