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 6pm Sat 1st Aug 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 |
54 (2 Low) | 44 (1 Low) | n/m | 2 (1 Low) | 4 (1 Low) *2 | 01/08/2026 18:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 47 (1 Low) | n/m | n/m | n/m | 31/07/2026 21:00:00 |
| Armagh Roadside Timeseries Graph |
n/m | 33 (1 Low) | n/m | n/m | 17 (2 Low) *1 | 31/07/2026 21:00:00 |
| Aston Hill Timeseries Graph |
76 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 31/07/2026 20:00:00 |
| Auchencorth Moss Timeseries Graph |
65 (2 Low) | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 01/08/2026 18:00:00 |
| Aylesbury A4157 Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 01/08/2026 17:00:00 |
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 | 22 (1 Low) | n/m | n/m | n/m | 31/07/2026 20:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 15 (1 Low) | 3 (1 Low) | n/m | n/m | 31/07/2026 24:15: |
| Barnsley Gawber Timeseries Graph |
82 (3 Low) | 9 (1 Low) | 1 (1 Low) | 6 (1 Low) | 19 (2 Low) *2 | 01/08/2026 12:15:00 |
| Barnstaple A39 Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 09:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 01/08/2026 18:00:00 |
| Bedworth Collycroft Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 13:00:00 |
| Belfast Centre Timeseries Graph |
60 (2 Low) | 33 (1 Low) | n/a | 6 (1 Low) | 11 (1 Low) *2 | 31/07/2026 09:45:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 40 (1 Low) | n/m | n/m | 16 (1 Low) *1 | 31/07/2026 22:00:00 |
| Birkenhead Borough Road Timeseries Graph |
n/m | 7 (1 Low) | n/m | 5 (1 Low) | n/m | 01/08/2026 09:00:00 |
| Birmingham A4540 Roadside Timeseries Graph |
60 (2 Low) | 32 (1 Low) | n/m | 5 (1 Low) | 13 (1 Low) *2 | 01/08/2026 05:00:00 |
| Birmingham Hall Green Timeseries Graph |
81 (3 Low) | 11 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 12:00:00 |
| Birmingham Ladywood Timeseries Graph |
n/a | 11 (1 Low) | 2 (1 Low) | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 13:15:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 12:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 23 (1 Low) | n/m | n/m | n/m | 31/07/2026 23:00:00 |
| Blackburn Audley Park Timeseries Graph |
67 (3 Low) | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 01/08/2026 02:00:00 |
| Blackpool Marton Timeseries Graph |
75 (3 Low) | 4 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 03:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 01/08/2026 03:00:00 |
| Borehamwood Meadow Park Timeseries Graph |
n/m | 13 (1 Low) | n/m | 4 (1 Low) | 12 (1 Low) *2 | 01/08/2026 06:00:00 |
| Bournemouth Timeseries Graph |
85 (3 Low) | 7 (1 Low) | n/m | n/a | n/m | 29/07/2026 09:00:00 |
| Bournemouth Bourne Valley Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 18:00:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 31/07/2026 22:00:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 02:00:00 |
| Bradford West Park Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 13 (1 Low) *2 | 01/08/2026 11:00:00 |
| Bridgwater A372 Westonzoyland Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 01/08/2026 04:00:00 |
| Brighton Preston Park Timeseries Graph |
64 (2 Low) | 72 (2 Low) | n/m | 8 (1 Low) | 43 (3 Low) *2 | 01/08/2026 18:00:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 12:00:00 |
| Bristol St Paul's Timeseries Graph |
80 (3 Low) | 42 (1 Low) | n/m | 7 (1 Low) | n/a | 01/08/2026 13:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 40 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 01/08/2026 13:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
77 (3 Low) | 25 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 12:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | 15 (1 Low) *1 | 31/07/2026 23:00:00 |
| Bush Estate Timeseries Graph |
69 (3 Low) | 1 (1 Low) | n/m | n/m | n/m | 31/07/2026 19:00:00 |
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 King's Hedges Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 12 (1 Low) *2 | 01/08/2026 18:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 44 (1 Low) | n/m | n/m | n/m | 01/08/2026 18:00:00 |
| Camden Kerbside Timeseries Graph |
n/m | 35 (1 Low) | n/m | 10 (1 Low) | 22 (2 Low) *1 | 01/08/2026 07:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | 5 (1 Low) | n/m | 01/08/2026 05:00:00 |
| Cardiff Centre Timeseries Graph |
70 (3 Low) | 33 (1 Low) | 1 (1 Low) | 7 (1 Low) | 16 (1 Low) *1 | 31/07/2026 22:00:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 01/08/2026 07:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 7 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) *1 | 01/08/2026 18:00:00 |
| Charlton Mackrell Timeseries Graph |
81 (3 Low) | 4 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 11:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | n/a | n/m | 4 (1 Low) | 18 (2 Low) *1 | 01/08/2026 17:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 01/08/2026 03:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 25 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *1 | 01/08/2026 17:00:00 |
| Chesterfield Loundsley Green Timeseries Graph |
83 (3 Low) | n/a | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 12:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 9 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 12:00:00 |
| Chilbolton Observatory Timeseries Graph |
97 (3 Low) | 4 (1 Low) | 5 (1 Low) | 4 (1 Low) | 12 (1 Low) *2 | 31/07/2026 11:15:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/a | n/m | 29/07/2026 01:00:00 |
| Coventry Allesley Timeseries Graph |
77 (3 Low) | 19 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 13:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 30 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 14:00:00 |
| Crewe Coppenhall Timeseries Graph |
79 (3 Low) | 9 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 02:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
81 (3 Low) | 8 (1 Low) | n/m | n/m | n/m | 31/07/2026 19:00:00 |
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 |
| Darlington Firthmoor Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 08:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 27 (1 Low) | n/m | 5 (1 Low) | n/m | 01/08/2026 12:00:00 |
| Derby Stockbrook Park Timeseries Graph |
79 (3 Low) | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 12:00:00 |
| Derry Rosemount Timeseries Graph |
65 (2 Low) | 5 (1 Low) | 1 (1 Low) | 3 (1 Low) | 12 (1 Low) *1 | 31/07/2026 19:30:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
74 (3 Low) | 23 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 09:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 36 (1 Low) | n/m | 5 (1 Low) | n/m | 01/08/2026 09:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 12 (1 Low) | n/m | n/m | n/m | 01/08/2026 16:00:00 |
| Dumfries Timeseries Graph |
n/m | 21 (1 Low) | n/m | n/m | n/m | 01/08/2026 17:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 14 (1 Low) | n/m | n/m | n/m | 31/07/2026 23:00:00 |
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 | 39 (3 Low) *1 | 01/08/2026 05:00:00 |
| Eastbourne Timeseries Graph |
96 (3 Low) | n/a | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 18:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 33 (1 Low) | n/m | n/m | n/m | 31/07/2026 20:00:00 |
| Edinburgh St Leonards Timeseries Graph |
57 (2 Low) | 18 (1 Low) | 2 (1 Low) | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 16:30:00 |
| Eskdalemuir Timeseries Graph |
60 (2 Low) | 1 (1 Low) | n/m | n/m | n/m | 31/07/2026 19:00:00 |
| Exeter Roadside Timeseries Graph |
55 (2 Low) | 30 (1 Low) | n/m | n/m | n/m | 31/07/2026 21:00:00 |
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) | 9 (1 Low) *2 | 01/08/2026 18:00:00 |
| Fort William Timeseries Graph |
64 (2 Low) | 11 (1 Low) | n/m | n/m | n/m | 01/08/2026 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 | 11 (1 Low) | n/m | n/m | n/m | 31/07/2026 24:00: |
| Glasgow High Street Timeseries Graph |
n/m | 14 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 01/08/2026 18:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 41 (1 Low) | n/m | n/m | n/m | 01/08/2026 17:00:00 |
| Glasgow Townhead Timeseries Graph |
71 (3 Low) | 10 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 18:00:00 |
| Glazebury Timeseries Graph |
74 (3 Low) | 13 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 01:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 18:00:00 |
| Grangemouth Timeseries Graph |
n/m | 3 (1 Low) | 4 (1 Low) | 8 (1 Low) | 12 (1 Low) *1 | 31/07/2026 23:15:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 4 (1 Low) | n/m | n/m | n/m | 01/08/2026 01:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 16 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 01/08/2026 18:00:00 |
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 | 18 (1 Low) | n/m | n/m | n/m | 31/07/2026 24:00: |
| Haringey Roadside Timeseries Graph |
n/m | 26 (1 Low) | n/m | n/m | n/m | 31/07/2026 23:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 10:00:00 |
| Hartlepool St Abbs Walk Timeseries Graph |
86 (3 Low) | 4 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 07:00:00 |
| High Muffles Timeseries Graph |
64 (2 Low) | 2 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 01/08/2026 09:00:00 |
| Honiton Timeseries Graph |
73 (3 Low) | 15 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 01/08/2026 08:00:00 |
| Horley Timeseries Graph |
n/m | 11 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 18:00:00 |
| Hull Freetown Timeseries Graph |
76 (3 Low) | 31 (1 Low) | 2 (1 Low) | 5 (1 Low) | 13 (1 Low) *2 | 01/08/2026 08:15:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 26 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 01/08/2026 12:00:00 |
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 |
83 (3 Low) | 11 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 12:00:00 |
| Inverness Timeseries Graph |
n/m | 19 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 01/08/2026 18:00:00 |
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 |
64 (2 Low) | n/m | n/m | 3 (1 Low) | 5 (1 Low) *2 | 01/08/2026 18:00:00 |
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 |
87 (3 Low) | 6 (1 Low) | 3 (1 Low) | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 01:45:00 |
| Leamington Spa Timeseries Graph |
84 (3 Low) | 19 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 14:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 9 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 14:00:00 |
| Leeds Centre Timeseries Graph |
68 (3 Low) | 31 (1 Low) | 2 (1 Low) | 5 (1 Low) | 10 (1 Low) *2 | 31/07/2026 19:00:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 24 (1 Low) | n/m | 8 (1 Low) | 18 (2 Low) *1 | 01/08/2026 07:00:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 62 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 01/08/2026 14:00:00 |
| Leicester University Timeseries Graph |
78 (3 Low) | 26 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 11:00:00 |
| Leominster Timeseries Graph |
77 (3 Low) | 6 (1 Low) | n/m | n/m | n/m | 31/07/2026 20:00:00 |
| Lerwick Timeseries Graph |
69 (3 Low) | n/m | n/m | n/m | n/m | 31/07/2026 20:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 29 (1 Low) | n/m | n/m | n/m | 31/07/2026 24:00: |
| Liverpool Speke Timeseries Graph |
76 (3 Low) | 7 (1 Low) | 3 (1 Low) | 6 (1 Low) | 14 (1 Low) *1 | 01/08/2026 03:45:00 |
| Liverpool Thirlmere Park Timeseries Graph |
71 (3 Low) | n/m | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 10:00:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 01/08/2026 18:00:00 |
| London Bexley Timeseries Graph |
n/m | n/a | n/m | 3 (1 Low) | 9 (1 Low) *2 | 31/07/2026 01:00:00 |
| London Bloomsbury Timeseries Graph |
85 (3 Low) | 49 (1 Low) | 2 (1 Low) | 5 (1 Low) | 13 (1 Low) *2 | 31/07/2026 21:15:00 |
| London Farringdon Street Timeseries Graph |
n/m | 44 (1 Low) | n/m | 6 (1 Low) | n/m | 01/08/2026 18:00:00 |
| London Haringey Priory Park South Timeseries Graph |
91 (3 Low) | 19 (1 Low) | n/m | 4 (1 Low) | 11 (1 Low) *2 | 01/08/2026 18:00:00 |
| London Harlington Timeseries Graph |
93 (3 Low) | 23 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 18:00:00 |
| London Hillingdon Timeseries Graph |
97 (3 Low) | 21 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 01/08/2026 18:00:00 |
| London Honor Oak Park Timeseries Graph |
110 (4 Moderate) | n/m | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 18:00:00 |
| London Marylebone Road Timeseries Graph |
86 (3 Low) | 32 (1 Low) | 5 (1 Low) | 8 (1 Low) | 16 (1 Low) *1 | 01/08/2026 04:00:00 |
| London N. Kensington Timeseries Graph |
100 (3 Low) | 15 (1 Low) | 2 (1 Low) | 4 (1 Low) | 11 (1 Low) *2 | 01/08/2026 08:00:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 12 (1 Low) *2 | 01/08/2026 18:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 16 (1 Low) *2 | 01/08/2026 18:00:00 |
| London Westminster Timeseries Graph |
92 (3 Low) | 19 (1 Low) | n/m | n/m | n/m | 31/07/2026 21:00:00 |
| Lough Navar Timeseries Graph |
60 (2 Low) | n/m | n/m | 5 (1 Low) | 8 (1 Low) *2 | 01/08/2026 18:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 12:00:00 |
| Lullington Heath Timeseries Graph |
107 (4 Moderate) | 6 (1 Low) | n/a | 4 (1 Low) | 10 (1 Low) *2 | 31/07/2026 02:15:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 50 (1 Low) | n/m | 5 (1 Low) | n/m | 01/08/2026 17:00:00 |
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 |
74 (3 Low) | n/m | n/m | n/m | n/m | 31/07/2026 18:00:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 21 (2 Low) *2 | 01/08/2026 01:00:00 |
| Manchester Piccadilly Timeseries Graph |
65 (2 Low) | 21 (1 Low) | 2 (1 Low) | 7 (1 Low) | 14 (1 Low) *2 | 01/08/2026 02:30:00 |
| Manchester Sharston Timeseries Graph |
77 (3 Low) | 32 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 06:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 12:00:00 |
| Middlesbrough Timeseries Graph |
66 (2 Low) | 6 (1 Low) | 1 (1 Low) | 3 (1 Low) | 10 (1 Low) *1 | 01/08/2026 05:30:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 01/08/2026 03:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
83 (3 Low) | n/m | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 15:00:00 |
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 |
71 (3 Low) | 1 (1 Low) | 2 (1 Low) | 4 (1 Low) | 10 (1 Low) *2 | 31/07/2026 18:45:00 |
| Newcastle Centre Timeseries Graph |
64 (2 Low) | 19 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *1 | 01/08/2026 11:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | n/a | n/m | n/a | n/a | 10/07/2026 10:00:00 |
| Newport Timeseries Graph |
n/m | 20 (1 Low) | n/m | 11 (1 Low) | 16 (1 Low) *2 | 01/08/2026 18:00:00 |
| North Shields Chirton Timeseries Graph |
n/m | n/m | n/m | 3 (1 Low) | 6 (1 Low) *2 | 01/08/2026 16:00:00 |
| Northampton Spring Park Timeseries Graph |
83 (3 Low) | 19 (1 Low) | n/m | 10 (1 Low) | n/m | 01/08/2026 17:00:00 |
| Norwich Lakenfields Timeseries Graph |
79 (3 Low) | 18 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 18:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 12:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
81 (3 Low) | 22 (1 Low) | 1 (1 Low) | 5 (1 Low) | 12 (1 Low) *2 | 01/08/2026 10:00:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 27 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 01/08/2026 11:00:00 |
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 | 26 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 01/08/2026 02:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 23 (1 Low) | n/m | n/m | n/m | 01/08/2026 07:00:00 |
| Oxford St Ebbes Timeseries Graph |
83 (3 Low) | 33 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) *2 | 01/08/2026 18:00:00 |
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 |
65 (2 Low) | 4 (1 Low) | n/m | n/m | n/m | 31/07/2026 20:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 12 (1 Low) | n/m | n/m | n/m | 01/08/2026 13:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 03:00:00 |
| Plymouth Centre Timeseries Graph |
60 (2 Low) | 36 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 06:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 01/08/2026 07:00:00 |
| Port Talbot Margam Timeseries Graph |
73 (3 Low) | 10 (1 Low) | 2 (1 Low) | 9 (1 Low) | 24 (2 Low) *3 | 01/08/2026 17:45:00 |
| Portsmouth Timeseries Graph |
85 (3 Low) | 11 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 18:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 29 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 18:00:00 |
| Preston Timeseries Graph |
70 (3 Low) | 14 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 06:00:00 |
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 | 28 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 31/07/2026 21:00:00 |
| Reading New Town Timeseries Graph |
86 (3 Low) | 9 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 18:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | n/m | 01/08/2026 18:00:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 11 (1 Low) *2 | 01/08/2026 09:00:00 |
| Rochdale Belfield Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 01/08/2026 08:00:00 |
| Rochester Stoke Timeseries Graph |
99 (3 Low) | 15 (1 Low) | 1 (1 Low) | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 08:15:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 12 (1 Low) *2 | 01/08/2026 07:00:00 |
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 |
78 (3 Low) | 13 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) *2 | 01/08/2026 02:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 2 (1 Low) | 11 (1 Low) *1 | 01/08/2026 14:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 12 (1 Low) | 2 (1 Low) | 6 (1 Low) | 12 (1 Low) *1 | 01/08/2026 08:45:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/m | n/m | 31/07/2026 22:00:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 33 (1 Low) | n/m | 6 (1 Low) | n/m | 01/08/2026 08:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
77 (3 Low) | 15 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 10:00:00 |
| Sheffield Tinsley Timeseries Graph |
72 (3 Low) | 31 (1 Low) | n/m | 5 (1 Low) | 13 (1 Low) *2 | 01/08/2026 06:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 11:00:00 |
| Sibton Timeseries Graph |
82 (3 Low) | n/m | n/m | 4 (1 Low) | 15 (1 Low) *2 | 01/08/2026 18:00:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 12 (1 Low) *2 | 01/08/2026 18:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 27 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 18:00:00 |
| Southampton Centre Timeseries Graph |
87 (3 Low) | 16 (1 Low) | 0 (1 Low) | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 16:15:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) *2 | 01/08/2026 12:00:00 |
| Southend-on-Sea Timeseries Graph |
87 (3 Low) | 14 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *2 | 01/08/2026 14:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 31 (1 Low) | n/m | n/m | 29 (2 Low) *1 | 31/07/2026 20:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/m | 12 (1 Low) *1 | 31/07/2026 11:00:00 |
| St Osyth Timeseries Graph |
97 (3 Low) | 7 (1 Low) | n/m | 4 (1 Low) | 13 (1 Low) *2 | 01/08/2026 18:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 41 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *1 | 01/08/2026 16:00:00 |
| Stevenage St Georges Way South Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | n/m | 01/08/2026 05:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 6 (1 Low) | n/m | 5 (1 Low) | n/m | 01/08/2026 08:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 3 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) *1 | 01/08/2026 07:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 35 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 05:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
65 (2 Low) | 24 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 01/08/2026 02:00:00 |
| Storrington Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | 5 (1 Low) | 21 (2 Low) *2 | 01/08/2026 09:00:00 |
| Strathvaich Timeseries Graph |
73 (3 Low) | n/m | n/m | n/m | n/m | 01/08/2026 18:00:00 |
| Sunderland Silksworth Timeseries Graph |
63 (2 Low) | 14 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) *2 | 01/08/2026 09:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 8 (1 Low) | n/m | 3 (1 Low) | n/m | 01/08/2026 07:00:00 |
| Swansea Roadside Timeseries Graph |
n/m | 14 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) *1 | 01/08/2026 10:00:00 |
| Swindon Walcot Timeseries Graph |
87 (3 Low) | 11 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 14:00:00 |
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 |
94 (3 Low) | n/m | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 01:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 01/08/2026 04:00:00 |
| Telford Hollinswood Timeseries Graph |
86 (3 Low) | 10 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 12:00:00 |
| Thurrock Timeseries Graph |
87 (3 Low) | 23 (1 Low) | 3 (1 Low) | 5 (1 Low) | 13 (1 Low) *2 | 01/08/2026 07:30:00 |
| Toft Newton Timeseries Graph |
92 (3 Low) | 6 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) *2 | 01/08/2026 12:00:00 |
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 | 6 (1 Low) | 12 (1 Low) *2 | 01/08/2026 09:00:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 13 (1 Low) *2 | 01/08/2026 03:00:00 |
| Walsall Woodlands Timeseries Graph |
80 (3 Low) | 11 (1 Low) | n/m | n/m | n/m | 31/07/2026 20:00:00 |
| Warrington Timeseries Graph |
n/m | n/a | n/m | 2 (1 Low) | 10 (1 Low) *1 | 01/08/2026 10:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
69 (3 Low) | 13 (1 Low) | n/m | n/m | n/m | 31/07/2026 21:00:00 |
| Weybourne Timeseries Graph |
73 (3 Low) | n/m | n/m | 4 (1 Low) | 8 (1 Low) *2 | 01/08/2026 18:00:00 |
| Wicken Fen Timeseries Graph |
83 (3 Low) | 11 (1 Low) | n/a | 4 (1 Low) | 11 (1 Low) *2 | 30/07/2026 05:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | n/m | 01/08/2026 08:00:00 |
| Wigan Centre Timeseries Graph |
73 (3 Low) | 24 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 01/08/2026 03:00:00 |
| Wirral Tranmere Timeseries Graph |
76 (3 Low) | 4 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) *2 | 01/08/2026 10:00:00 |
| Wolverhampton East Park Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 11 (1 Low) *2 | 01/08/2026 03:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 9 (1 Low) *2 | 01/08/2026 11:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 32 (1 Low) | n/m | 7 (1 Low) | n/m | 01/08/2026 10:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 5 (1 Low) | 12 (1 Low) *2 | 01/08/2026 18:00:00 |
| Wrexham Timeseries Graph |
n/m | 7 (1 Low) | 2 (1 Low) | 4 (1 Low) | 7 (1 Low) *2 | 01/08/2026 08:30:00 |
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 |
77 (3 Low) | 2 (1 Low) | n/m | 3 (1 Low) | 6 (1 Low) *2 | 01/08/2026 01:00:00 |
| York Bootham Timeseries Graph |
67 (3 Low) | 24 (1 Low) | n/m | 5 (1 Low) | 14 (1 Low) *1 | 01/08/2026 06:00:00 |
| York Fishergate Timeseries Graph |
n/m | 18 (1 Low) | n/m | 2 (1 Low) | 14 (1 Low) *1 | 01/08/2026 10:00:00 |
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