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 11pm Thu 23rd Oct 2025
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 |
59 (2 Low) | 31 (1 Low) | n/m | 2 (1 Low) | 5 (1 Low) *2 | 23/10/2025 19:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 29 (1 Low) | n/m | n/m | n/m | 23/10/2025 17:00:00 |
| Armagh Roadside Timeseries Graph |
n/m | 60 (1 Low) | n/m | n/m | n/a | 23/10/2025 08:00:00 |
| Aston Hill Timeseries Graph |
62 (2 Low) | 7 (1 Low) | n/m | n/m | n/m | 23/10/2025 21:00:00 |
| Auchencorth Moss Timeseries Graph |
61 (2 Low) | n/m | n/m | 2 (1 Low) | 4 (1 Low) *2 | 23/10/2025 08:00:00 |
| Aylesbury A4157 Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 23/10/2025 01:00:00 |
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 | 47 (1 Low) | n/m | n/m | n/m | 23/10/2025 08:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 48 (1 Low) | 123 (2 Low) | n/m | n/m | 23/10/2025 16:30:00 |
| Barnsley Gawber Timeseries Graph |
55 (2 Low) | 36 (1 Low) | 3 (1 Low) | 7 (1 Low) | 12 (1 Low) *2 | 22/10/2025 24:15: |
| Barnstaple A39 Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 9 (1 Low) *2 | 23/10/2025 01:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | n/m | n/m | 23/10/2025 19:00:00 |
| Belfast Centre Timeseries Graph |
40 (2 Low) | 43 (1 Low) | 3 (1 Low) | 5 (1 Low) | 12 (1 Low) *2 | 22/10/2025 23:15:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 82 (2 Low) | n/m | n/m | 23 (2 Low) *1 | 23/10/2025 09:00:00 |
| Birkenhead Borough Road Timeseries Graph |
n/m | 44 (1 Low) | n/m | 6 (1 Low) | n/m | 23/10/2025 18:00:00 |
| Birmingham A4540 Roadside Timeseries Graph |
43 (2 Low) | 36 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 23/10/2025 07:00:00 |
| Birmingham Hall Green Timeseries Graph |
54 (2 Low) | 38 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 23/10/2025 16:00:00 |
| Birmingham Ladywood Timeseries Graph |
53 (2 Low) | 25 (1 Low) | 2 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 23/10/2025 13:00:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 23/10/2025 17:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 42 (1 Low) | n/m | n/m | n/m | 23/10/2025 09:00:00 |
| Blackburn Audley Park Timeseries Graph |
51 (2 Low) | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 23/10/2025 06:00:00 |
| Blackpool Marton Timeseries Graph |
64 (2 Low) | 18 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 23/10/2025 02:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 23/10/2025 01:00:00 |
| Borehamwood Meadow Park Timeseries Graph |
n/m | 11 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/10/2025 01:00:00 |
| Bournemouth Timeseries Graph |
70 (3 Low) | 8 (1 Low) | n/m | 5 (1 Low) | n/m | 23/10/2025 23:00:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 60 (1 Low) | n/m | n/m | n/m | 22/10/2025 23:00:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 14 (1 Low) *2 | 23/10/2025 06:00:00 |
| Brighton Preston Park Timeseries Graph |
58 (2 Low) | 6 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/10/2025 01:00:00 |
| Bristol St Paul's Timeseries Graph |
59 (2 Low) | 13 (1 Low) | n/m | 5 (1 Low) | 13 (1 Low) *1 | 23/10/2025 03:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 25 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 23/10/2025 01:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
60 (2 Low) | 35 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 23/10/2025 05:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 23/10/2025 09:00:00 |
| Bush Estate Timeseries Graph |
59 (2 Low) | 9 (1 Low) | n/m | n/m | n/m | 23/10/2025 20:00:00 |
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 Roadside Timeseries Graph |
n/m | 40 (1 Low) | n/m | n/m | n/m | 22/10/2025 23:00:00 |
| Camden Kerbside Timeseries Graph |
n/m | 29 (1 Low) | n/m | 9 (1 Low) | 19 (2 Low) *1 | 23/10/2025 01:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 18 (1 Low) | n/m | 5 (1 Low) | n/m | 23/10/2025 02:00:00 |
| Cardiff Centre Timeseries Graph |
60 (2 Low) | 20 (1 Low) | 3 (1 Low) | 7 (1 Low) | 11 (1 Low) *1 | 23/10/2025 21:30:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 36 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 23/10/2025 09:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 26 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *1 | 23/10/2025 13:00:00 |
| Charlton Mackrell Timeseries Graph |
68 (3 Low) | 5 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 23/10/2025 01:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 19 (1 Low) | n/m | 4 (1 Low) | 14 (1 Low) *1 | 23/10/2025 01:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 23/10/2025 23:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 40 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *1 | 23/10/2025 11:00:00 |
| Chesterfield Loundsley Green Timeseries Graph |
64 (2 Low) | 16 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 23/10/2025 03:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 15 (1 Low) | n/m | 7 (1 Low) | 16 (1 Low) *2 | 23/10/2025 03:00:00 |
| Chilbolton Observatory Timeseries Graph |
65 (2 Low) | 5 (1 Low) | 2 (1 Low) | 3 (1 Low) | 5 (1 Low) *2 | 23/10/2025 17:15:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 15 (1 Low) | n/m | 6 (1 Low) | n/m | 23/10/2025 01:00:00 |
| Coventry Allesley Timeseries Graph |
57 (2 Low) | 15 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/10/2025 07:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 30 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/10/2025 04:00:00 |
| Crewe Coppenhall Timeseries Graph |
60 (2 Low) | 20 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/10/2025 05:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
68 (3 Low) | 8 (1 Low) | n/m | n/m | n/m | 23/10/2025 08:00:00 |
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 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 31 (1 Low) | n/m | 7 (1 Low) | n/m | 23/10/2025 06:00:00 |
| Derby Stockbrook Park Timeseries Graph |
56 (2 Low) | n/m | n/m | 7 (1 Low) | 11 (1 Low) *2 | 23/10/2025 06:00:00 |
| Derry Rosemount Timeseries Graph |
59 (2 Low) | 15 (1 Low) | 5 (1 Low) | 4 (1 Low) | 9 (1 Low) *1 | 22/10/2025 23:15:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
54 (2 Low) | 44 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *2 | 23/10/2025 07:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 37 (1 Low) | n/m | 6 (1 Low) | n/m | 23/10/2025 08:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 50 (1 Low) | n/m | n/m | n/m | 23/10/2025 10:00:00 |
| Dumfries Timeseries Graph |
n/m | 26 (1 Low) | n/m | n/m | n/m | 23/10/2025 11:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 23/10/2025 09:00:00 |
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 | 27 (2 Low) *1 | 23/10/2025 01:00:00 |
| Eastbourne Timeseries Graph |
65 (2 Low) | 5 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 23/10/2025 06:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 63 (1 Low) | n/m | n/m | n/m | 23/10/2025 08:00:00 |
| Edinburgh St Leonards Timeseries Graph |
41 (2 Low) | 46 (1 Low) | 3 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 23/10/2025 09:15:00 |
| Eskdalemuir Timeseries Graph |
58 (2 Low) | 3 (1 Low) | n/m | n/m | n/m | 23/10/2025 19:00:00 |
| Exeter Roadside Timeseries Graph |
62 (2 Low) | 24 (1 Low) | n/m | n/m | n/m | 23/10/2025 07:00:00 |
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 | 4 (1 Low) | 7 (1 Low) *2 | 23/10/2025 01:00:00 |
| Fort William Timeseries Graph |
30 (1 Low) | 28 (1 Low) | n/m | n/m | n/m | 23/10/2025 18:00:00 |
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 | 59 (1 Low) | n/m | n/m | n/m | 23/10/2025 11:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 48 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 23/10/2025 23:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 73 (2 Low) | n/m | n/m | n/m | 22/10/2025 24:00: |
| Glasgow Townhead Timeseries Graph |
50 (2 Low) | 48 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 23/10/2025 23:00:00 |
| Glazebury Timeseries Graph |
64 (2 Low) | 23 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 23/10/2025 04:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/10/2025 05:00:00 |
| Grangemouth Timeseries Graph |
n/m | 22 (1 Low) | 4 (1 Low) | 5 (1 Low) | 8 (1 Low) *1 | 23/10/2025 16:15:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 41 (1 Low) | n/m | n/m | n/m | 23/10/2025 10:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 47 (1 Low) | n/m | 2 (1 Low) | 7 (1 Low) *2 | 23/10/2025 01:00:00 |
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 | 60 (1 Low) | n/m | n/m | n/m | 23/10/2025 10:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 21 (1 Low) | n/m | n/m | n/m | 22/10/2025 24:00: |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 23/10/2025 07:00:00 |
| Hartlepool St Abbs Walk Timeseries Graph |
57 (2 Low) | 26 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 23/10/2025 10:00:00 |
| High Muffles Timeseries Graph |
64 (2 Low) | 5 (1 Low) | n/m | 2 (1 Low) | 5 (1 Low) *2 | 23/10/2025 06:00:00 |
| Honiton Timeseries Graph |
67 (3 Low) | 14 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 23/10/2025 01:00:00 |
| Horley Timeseries Graph |
n/m | 6 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 23/10/2025 01:00:00 |
| Hull Freetown Timeseries Graph |
67 (3 Low) | 17 (1 Low) | 6 (1 Low) | 5 (1 Low) | 13 (1 Low) *2 | 23/10/2025 14:45:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 20 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 23/10/2025 01:00:00 |
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 |
62 (2 Low) | 46 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/10/2025 01:00:00 |
| Inverness Timeseries Graph |
n/m | 37 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/10/2025 21:00:00 |
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 |
50 (2 Low) | n/m | n/m | 2 (1 Low) | 5 (1 Low) *2 | 23/10/2025 01:00:00 |
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 |
72 (3 Low) | 14 (1 Low) | 3 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 23/10/2025 10:45:00 |
| Leamington Spa Timeseries Graph |
57 (2 Low) | 16 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 23/10/2025 04:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 23/10/2025 04:00:00 |
| Leeds Centre Timeseries Graph |
47 (2 Low) | 30 (1 Low) | 2 (1 Low) | 6 (1 Low) | 13 (1 Low) *2 | 23/10/2025 06:45:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 42 (1 Low) | n/m | 10 (1 Low) | 23 (2 Low) *1 | 23/10/2025 08:00:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 40 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) *2 | 23/10/2025 03:00:00 |
| Leicester University Timeseries Graph |
53 (2 Low) | 42 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 23/10/2025 03:00:00 |
| Leominster Timeseries Graph |
59 (2 Low) | 10 (1 Low) | n/m | n/m | n/m | 23/10/2025 19:00:00 |
| Lerwick Timeseries Graph |
72 (3 Low) | n/m | n/m | n/m | n/m | 22/10/2025 24:00: |
| Lincoln Canwick Road Timeseries Graph |
n/m | 47 (1 Low) | n/m | n/m | n/m | 23/10/2025 09:00:00 |
| Liverpool Speke Timeseries Graph |
61 (2 Low) | 47 (1 Low) | 3 (1 Low) | 7 (1 Low) | 15 (1 Low) *1 | 22/10/2025 24:45: |
| Liverpool Thirlmere Park Timeseries Graph |
63 (2 Low) | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 23/10/2025 07:00:00 |
| London Bexley Timeseries Graph |
n/m | 15 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/10/2025 01:00:00 |
| London Bloomsbury Timeseries Graph |
57 (2 Low) | 35 (1 Low) | 3 (1 Low) | 5 (1 Low) | 10 (1 Low) *2 | 23/10/2025 16:45:00 |
| London Farringdon Street Timeseries Graph |
n/m | 34 (1 Low) | n/m | 6 (1 Low) | n/m | 23/10/2025 01:00:00 |
| London Haringey Priory Park South Timeseries Graph |
64 (2 Low) | 20 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) *2 | 23/10/2025 01:00:00 |
| London Harlington Timeseries Graph |
64 (2 Low) | 21 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/10/2025 01:00:00 |
| London Hillingdon Timeseries Graph |
60 (2 Low) | 16 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 23/10/2025 01:00:00 |
| London Honor Oak Park Timeseries Graph |
72 (3 Low) | n/m | n/m | 4 (1 Low) | 7 (1 Low) *2 | 23/10/2025 01:00:00 |
| London Marylebone Road Timeseries Graph |
24 (1 Low) | 37 (1 Low) | 2 (1 Low) | 7 (1 Low) | 19 (2 Low) *1 | 23/10/2025 17:00:00 |
| London N. Kensington Timeseries Graph |
71 (3 Low) | 16 (1 Low) | 5 (1 Low) | 5 (1 Low) | 9 (1 Low) *2 | 23/10/2025 06:45:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/10/2025 01:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 23/10/2025 01:00:00 |
| London Westminster Timeseries Graph |
64 (2 Low) | 21 (1 Low) | n/m | n/a | n/m | 21/07/2025 16:00:00 |
| Lough Navar Timeseries Graph |
60 (2 Low) | n/m | n/m | 2 (1 Low) | 6 (1 Low) *2 | 23/10/2025 18:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 23/10/2025 01:00:00 |
| Lullington Heath Timeseries Graph |
72 (3 Low) | 5 (1 Low) | 3 (1 Low) | 3 (1 Low) | 6 (1 Low) *2 | 23/10/2025 01:30:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 32 (1 Low) | n/m | 6 (1 Low) | n/m | 23/10/2025 01:00:00 |
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 |
77 (3 Low) | n/m | n/m | n/m | n/m | 23/10/2025 13:00:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 11 (1 Low) *2 | 23/10/2025 01:00:00 |
| Manchester Piccadilly Timeseries Graph |
51 (2 Low) | 29 (1 Low) | 2 (1 Low) | 7 (1 Low) | 11 (1 Low) *2 | 22/10/2025 24:30: |
| Manchester Sharston Timeseries Graph |
56 (2 Low) | 29 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 23/10/2025 01:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 23/10/2025 04:00:00 |
| Middlesbrough Timeseries Graph |
47 (2 Low) | 38 (1 Low) | 3 (1 Low) | 4 (1 Low) | 12 (1 Low) *1 | 22/10/2025 23:15:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 23/10/2025 02:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
60 (2 Low) | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/10/2025 01:00:00 |
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 |
66 (2 Low) | 5 (1 Low) | 2 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 23/10/2025 02:30:00 |
| Newcastle Centre Timeseries Graph |
43 (2 Low) | 46 (1 Low) | n/m | 5 (1 Low) | 16 (1 Low) *1 | 23/10/2025 07:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 40 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 23/10/2025 05:00:00 |
| Newport Timeseries Graph |
n/m | 17 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 23/10/2025 01:00:00 |
| Northampton Spring Park Timeseries Graph |
63 (2 Low) | 12 (1 Low) | n/m | 9 (1 Low) | n/m | 23/10/2025 04:00:00 |
| Norwich Lakenfields Timeseries Graph |
63 (2 Low) | 10 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/10/2025 01:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 11 (1 Low) *2 | 23/10/2025 02:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
60 (2 Low) | 15 (1 Low) | 3 (1 Low) | 6 (1 Low) | 11 (1 Low) *2 | 23/10/2025 04:45:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 57 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 23/10/2025 02:00:00 |
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 | 32 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 23/10/2025 14:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 19/08/2025 17:00:00 |
| Oxford St Ebbes Timeseries Graph |
59 (2 Low) | 9 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 23/10/2025 02:00:00 |
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 |
62 (2 Low) | 11 (1 Low) | n/m | n/m | n/m | 23/10/2025 21:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 52 (1 Low) | n/m | n/m | n/m | 23/10/2025 20:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/10/2025 03:00:00 |
| Plymouth Centre Timeseries Graph |
60 (2 Low) | 25 (1 Low) | n/m | 5 (1 Low) | 14 (1 Low) *2 | 23/10/2025 01:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 56 (1 Low) | n/m | n/m | n/m | 23/10/2025 09:00:00 |
| Port Talbot Margam Timeseries Graph |
55 (2 Low) | 33 (1 Low) | 1 (1 Low) | 3 (1 Low) | 8 (1 Low) *3 | 23/10/2025 09:00:00 |
| Portsmouth Timeseries Graph |
59 (2 Low) | 11 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 23/10/2025 01:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 24 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/10/2025 01:00:00 |
| Preston Timeseries Graph |
55 (2 Low) | 37 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 23/10/2025 07:00:00 |
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 | 27 (1 Low) | n/m | n/m | 14 (1 Low) *1 | 23/10/2025 19:00:00 |
| Reading New Town Timeseries Graph |
56 (2 Low) | 15 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/10/2025 01:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 23/10/2025 01:00:00 |
| Rochester Stoke Timeseries Graph |
70 (3 Low) | 9 (1 Low) | 4 (1 Low) | 5 (1 Low) | 8 (1 Low) *2 | 23/10/2025 08:30:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 12 (1 Low) *2 | 23/10/2025 08:00:00 |
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 |
62 (2 Low) | 35 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 23/10/2025 04:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 12 (1 Low) *1 | 23/10/2025 01:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 18 (1 Low) | 2 (1 Low) | 6 (1 Low) | 13 (1 Low) *1 | 23/10/2025 03:15:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/m | n/m | 23/10/2025 10:00:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 41 (1 Low) | n/m | 9 (1 Low) | n/m | 23/10/2025 07:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
51 (2 Low) | 35 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *2 | 23/10/2025 05:00:00 |
| Sheffield Tinsley Timeseries Graph |
48 (2 Low) | 28 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 23/10/2025 05:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 23/10/2025 12:00:00 |
| Sibton Timeseries Graph |
65 (2 Low) | n/m | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/10/2025 05:00:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 15 (1 Low) *2 | 23/10/2025 01:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 43 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 23/10/2025 01:00:00 |
| Southampton Centre Timeseries Graph |
62 (2 Low) | 27 (1 Low) | 5 (1 Low) | 5 (1 Low) | 10 (1 Low) *2 | 22/10/2025 23:15:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 23/10/2025 01:00:00 |
| Southend-on-Sea Timeseries Graph |
64 (2 Low) | 9 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 23/10/2025 01:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | 15 (1 Low) *1 | 22/10/2025 24:00: |
| St Helens Linkway Timeseries Graph |
n/m | n/a | n/m | n/m | 12 (1 Low) *1 | 13/10/2025 21:00:00 |
| St Osyth Timeseries Graph |
70 (3 Low) | 7 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/10/2025 01:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 28 (1 Low) | n/m | 7 (1 Low) | n/a | 23/10/2025 01:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 36 (1 Low) | n/m | 5 (1 Low) | n/m | 23/10/2025 08:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 47 (1 Low) | n/m | 7 (1 Low) | n/a | 23/10/2025 15:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 23/10/2025 13:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
48 (2 Low) | 31 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 23/10/2025 04:00:00 |
| Storrington Roadside Timeseries Graph |
n/m | 28 (1 Low) | n/m | 5 (1 Low) | 14 (1 Low) *2 | 23/10/2025 01:00:00 |
| Strathvaich Timeseries Graph |
60 (2 Low) | n/m | n/m | n/m | n/m | 23/10/2025 20:00:00 |
| Sunderland Silksworth Timeseries Graph |
44 (2 Low) | 43 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 23/10/2025 15:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 32 (1 Low) | n/m | 5 (1 Low) | n/m | 23/10/2025 08:00:00 |
| Swansea Roadside Timeseries Graph |
n/m | 40 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *1 | 23/10/2025 01:00:00 |
| Swindon Walcot Timeseries Graph |
64 (2 Low) | 11 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/10/2025 01:00:00 |
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 |
67 (3 Low) | n/m | n/m | 6 (1 Low) | 9 (1 Low) *2 | 23/10/2025 03:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 23/10/2025 01:00:00 |
| Telford Hollinswood Timeseries Graph |
62 (2 Low) | 23 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/10/2025 11:00:00 |
| Thurrock Timeseries Graph |
49 (2 Low) | 19 (1 Low) | 4 (1 Low) | 5 (1 Low) | 9 (1 Low) *2 | 22/10/2025 24:45: |
| Toft Newton Timeseries Graph |
66 (2 Low) | 7 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 23/10/2025 01:00:00 |
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 | 7 (1 Low) | 13 (1 Low) *2 | 23/10/2025 07:00:00 |
| Walsall Woodlands Timeseries Graph |
60 (2 Low) | 18 (1 Low) | n/m | n/m | n/m | 23/10/2025 20:00:00 |
| Warrington Timeseries Graph |
n/m | n/a | n/m | 7 (1 Low) | 12 (1 Low) *1 | 23/10/2025 04:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
54 (2 Low) | 56 (1 Low) | n/m | n/m | n/m | 23/10/2025 21:00:00 |
| Weybourne Timeseries Graph |
77 (3 Low) | n/m | n/m | 8 (1 Low) | 13 (1 Low) *2 | 23/10/2025 23:00:00 |
| Wicken Fen Timeseries Graph |
65 (2 Low) | 8 (1 Low) | 7 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 23/10/2025 03:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 50 (1 Low) | n/m | n/m | n/m | 22/10/2025 24:00: |
| Wigan Centre Timeseries Graph |
59 (2 Low) | 15 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 23/10/2025 08:00:00 |
| Wirral Tranmere Timeseries Graph |
62 (2 Low) | 38 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) *2 | 23/10/2025 18:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/10/2025 13:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 20 (1 Low) | n/m | 7 (1 Low) | n/m | 23/10/2025 01:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 23/10/2025 01:00:00 |
| Wrexham Timeseries Graph |
n/m | 33 (1 Low) | 2 (1 Low) | 5 (1 Low) | 9 (1 Low) *2 | 23/10/2025 04:15:00 |
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) | 2 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 23/10/2025 01:00:00 |
| York Bootham Timeseries Graph |
42 (2 Low) | 22 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *1 | 23/10/2025 05:00:00 |
| York Fishergate Timeseries Graph |
n/m | 29 (1 Low) | n/m | 3 (1 Low) | 17 (2 Low) *1 | 23/10/2025 12:00:00 |
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