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 Tue 4th Aug 2026
Central Scotland
| 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 |
| Auchencorth Moss Timeseries Graph |
76 (3 Low) | n/m | n/m | 6 (1 Low) | 11 (1 Low) *2 | 04/08/2026 01:00:00 |
| Bush Estate Timeseries Graph |
77 (3 Low) | 4 (1 Low) | n/m | n/m | n/m | 03/08/2026 23:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 21 (1 Low) | n/m | n/m | n/m | 04/08/2026 10:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 35 (1 Low) | n/m | n/m | n/m | 04/08/2026 13:00:00 |
| Edinburgh St Leonards Timeseries Graph |
62 (2 Low) | 12 (1 Low) | 2 (1 Low) | 8 (1 Low) | 14 (1 Low) *2 | 04/08/2026 11:45:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 39 (1 Low) | n/m | n/m | n/m | 04/08/2026 15:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 20 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *2 | 04/08/2026 01:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 64 (1 Low) | n/m | n/m | n/m | 04/08/2026 13:00:00 |
| Glasgow Townhead Timeseries Graph |
44 (2 Low) | 16 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 04/08/2026 01:00:00 |
| Grangemouth Timeseries Graph |
n/m | 12 (1 Low) | 3 (1 Low) | 10 (1 Low) | 16 (1 Low) *1 | 03/08/2026 19:45:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 18 (1 Low) | n/m | n/m | n/m | 04/08/2026 08:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 44 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 04/08/2026 01:00:00 |
East Midlands
| 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 |
| Chesterfield Loundsley Green Timeseries Graph |
116 (4 Moderate) | n/a | n/m | 10 (1 Low) | 20 (2 Low) *2 | 04/08/2026 12:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 21 (1 Low) | n/m | 10 (1 Low) | 23 (2 Low) *2 | 04/08/2026 11:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 44 (1 Low) | n/m | 9 (1 Low) | n/m | 04/08/2026 10:00:00 |
| Derby Stockbrook Park Timeseries Graph |
111 (4 Moderate) | n/m | n/m | 8 (1 Low) | 21 (2 Low) *2 | 04/08/2026 10:00:00 |
| Ladybower Timeseries Graph |
126 (5 Moderate) | 18 (1 Low) | 9 (1 Low) | 9 (1 Low) | 19 (2 Low) *2 | 04/08/2026 08:45:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 68 (2 Low) | n/m | 9 (1 Low) | 23 (2 Low) *2 | 04/08/2026 05:00:00 |
| Leicester University Timeseries Graph |
120 (4 Moderate) | 25 (1 Low) | n/m | 7 (1 Low) | 15 (1 Low) *2 | 04/08/2026 09:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 50 (1 Low) | n/m | n/m | n/m | 04/08/2026 09:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 17 (2 Low) *2 | 04/08/2026 04:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 20 (2 Low) *2 | 04/08/2026 11:00:00 |
| Northampton Spring Park Timeseries Graph |
119 (4 Moderate) | 38 (1 Low) | n/m | 11 (1 Low) | n/m | 03/08/2026 13:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 26 (2 Low) *2 | 04/08/2026 10:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
110 (4 Moderate) | 21 (1 Low) | 1 (1 Low) | 9 (1 Low) | 21 (2 Low) *2 | 04/08/2026 10:00:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 37 (1 Low) | n/m | 8 (1 Low) | 19 (2 Low) *2 | 04/08/2026 11:00:00 |
| Tallington Timeseries Graph |
104 (4 Moderate) | n/m | n/m | 9 (1 Low) | 21 (2 Low) *2 | 04/08/2026 11:00:00 |
| Toft Newton Timeseries Graph |
110 (4 Moderate) | 5 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 04/08/2026 13:00:00 |
Eastern
| 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 |
| Borehamwood Meadow Park Timeseries Graph |
n/m | 32 (1 Low) | n/m | 9 (1 Low) | 19 (2 Low) *2 | 04/08/2026 13:00:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 19 (2 Low) *2 | 04/08/2026 14:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 49 (1 Low) | n/m | n/m | n/m | 04/08/2026 09:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 53 (1 Low) | n/m | 8 (1 Low) | n/m | 04/08/2026 09:00:00 |
| Norwich Lakenfields Timeseries Graph |
129 (5 Moderate) | 21 (1 Low) | n/m | 8 (1 Low) | 16 (1 Low) *2 | 04/08/2026 15:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 22 (2 Low) *2 | 04/08/2026 12:00:00 |
| Sibton Timeseries Graph |
141 (6 Moderate) | n/m | n/m | 9 (1 Low) | 23 (2 Low) *2 | 04/08/2026 18:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 17 (2 Low) *2 | 04/08/2026 16:00:00 |
| Southend-on-Sea Timeseries Graph |
109 (4 Moderate) | 17 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) *2 | 04/08/2026 14:00:00 |
| St Osyth Timeseries Graph |
125 (5 Moderate) | 14 (1 Low) | n/m | 11 (1 Low) | 21 (2 Low) *2 | 04/08/2026 16:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 55 (1 Low) | n/m | 11 (1 Low) | 26 (2 Low) *1 | 04/08/2026 10:00:00 |
| Stevenage St Georges Way South Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 04/08/2026 14:00:00 |
| Thurrock Timeseries Graph |
93 (3 Low) | 57 (1 Low) | 3 (1 Low) | 10 (1 Low) | 22 (2 Low) *2 | 04/08/2026 08:15:00 |
| Weybourne Timeseries Graph |
97 (3 Low) | n/m | n/m | 10 (1 Low) | 18 (2 Low) *2 | 04/08/2026 17:00:00 |
| Wicken Fen Timeseries Graph |
122 (5 Moderate) | 9 (1 Low) | 3 (1 Low) | 8 (1 Low) | 25 (2 Low) *2 | 03/08/2026 24:15: |
Greater London
| 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 |
| Camden Kerbside Timeseries Graph |
n/m | 45 (1 Low) | n/m | 15 (2 Low) | 34 (3 Low) *1 | 04/08/2026 12:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 69 (6 Moderate) *1 | 04/08/2026 17:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 51 (1 Low) | n/m | n/m | n/m | 04/08/2026 03:00:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | n/m | 04/08/2026 12:00:00 |
| London Bexley Timeseries Graph |
n/m | 33 (1 Low) | n/m | 9 (1 Low) | 23 (2 Low) *2 | 04/08/2026 09:00:00 |
| London Bloomsbury Timeseries Graph |
n/a | 7 (1 Low) | 5 (1 Low) | n/a | n/a | 04/08/2026 14:15:00 |
| London Farringdon Street Timeseries Graph |
n/m | 58 (1 Low) | n/m | 11 (1 Low) | n/m | 04/08/2026 08:00:00 |
| London Haringey Priory Park South Timeseries Graph |
129 (5 Moderate) | 31 (1 Low) | n/m | 8 (1 Low) | 17 (2 Low) *2 | 04/08/2026 11:00:00 |
| London Harlington Timeseries Graph |
132 (5 Moderate) | 66 (1 Low) | n/m | 8 (1 Low) | 19 (2 Low) *2 | 04/08/2026 11:00:00 |
| London Hillingdon Timeseries Graph |
130 (5 Moderate) | 74 (2 Low) | n/m | 11 (1 Low) | 39 (3 Low) *2 | 04/08/2026 17:00:00 |
| London Honor Oak Park Timeseries Graph |
135 (5 Moderate) | n/m | n/m | 8 (1 Low) | 18 (2 Low) *2 | 04/08/2026 10:00:00 |
| London Marylebone Road Timeseries Graph |
106 (4 Moderate) | 69 (2 Low) | 7 (1 Low) | 11 (1 Low) | 32 (2 Low) *1 | 04/08/2026 13:30:00 |
| London N. Kensington Timeseries Graph |
132 (5 Moderate) | 19 (1 Low) | 2 (1 Low) | 9 (1 Low) | 19 (2 Low) *2 | 04/08/2026 09:15:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 18 (2 Low) *2 | 04/08/2026 09:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 20 (2 Low) *2 | 04/08/2026 10:00:00 |
| London Westminster Timeseries Graph |
121 (5 Moderate) | 25 (1 Low) | n/m | n/m | n/m | 03/08/2026 20:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 33 (1 Low) | n/m | n/m | 37 (3 Low) *1 | 03/08/2026 20:00:00 |
Highland
| 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 |
| Fort William Timeseries Graph |
69 (3 Low) | 18 (1 Low) | n/m | n/m | n/m | 04/08/2026 08:00:00 |
| Inverness Timeseries Graph |
n/m | 10 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) *2 | 04/08/2026 07:00:00 |
| Lerwick Timeseries Graph |
67 (3 Low) | n/m | n/m | n/m | n/m | 03/08/2026 22:00:00 |
| Strathvaich Timeseries Graph |
72 (3 Low) | n/m | n/m | n/m | n/m | 04/08/2026 13:00:00 |
North East
| 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 | 11 (1 Low) | 19 (2 Low) *2 | 04/08/2026 16:00:00 |
| Hartlepool St Abbs Walk Timeseries Graph |
79 (3 Low) | 10 (1 Low) | n/m | 13 (2 Low) | 34 (3 Low) *2 | 04/08/2026 17:00:00 |
| Kielder Water Timeseries Graph |
75 (3 Low) | n/m | n/m | 7 (1 Low) | 11 (1 Low) *2 | 04/08/2026 13:00:00 |
| Middlesbrough Timeseries Graph |
75 (3 Low) | 14 (1 Low) | 6 (1 Low) | 8 (1 Low) | 27 (2 Low) *1 | 04/08/2026 10:30:00 |
| Newcastle Centre Timeseries Graph |
77 (3 Low) | 22 (1 Low) | n/m | 11 (1 Low) | 22 (2 Low) *1 | 04/08/2026 17:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | n/a | n/m | n/a | n/a | 10/07/2026 10:00:00 |
| North Shields Chirton Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 19 (2 Low) *2 | 04/08/2026 16:00:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 22 (2 Low) *2 | 04/08/2026 17:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 22 (1 Low) | n/m | 10 (1 Low) | n/m | 04/08/2026 16:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 17 (1 Low) | n/m | 10 (1 Low) | 21 (2 Low) *1 | 04/08/2026 16:00:00 |
| Sunderland Silksworth Timeseries Graph |
80 (3 Low) | 17 (1 Low) | n/m | 12 (2 Low) | 21 (2 Low) *2 | 04/08/2026 17:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 23 (1 Low) | n/m | 10 (1 Low) | n/m | 04/08/2026 17:00:00 |
North East Scotland
| 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 |
57 (2 Low) | 10 (1 Low) | n/m | 10 (1 Low) | 25 (2 Low) *2 | 04/08/2026 18:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 61 (1 Low) | n/m | n/m | n/m | 04/08/2026 13:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/m | n/m | 04/08/2026 18:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 12 (1 Low) | n/m | n/m | n/m | 04/08/2026 18:00:00 |
North Wales
| 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 |
| Aston Hill Timeseries Graph |
132 (5 Moderate) | 4 (1 Low) | n/m | n/m | n/m | 03/08/2026 19:00:00 |
| Wrexham Timeseries Graph |
n/m | 26 (1 Low) | 4 (1 Low) | 7 (1 Low) | 15 (1 Low) *2 | 04/08/2026 12:30:00 |
North West & Merseyside
| 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 |
| Birkenhead Borough Road Timeseries Graph |
n/m | 21 (1 Low) | n/m | 8 (1 Low) | n/m | 04/08/2026 09:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 04/08/2026 09:00:00 |
| Blackburn Audley Park Timeseries Graph |
108 (4 Moderate) | n/m | n/m | 9 (1 Low) | 18 (2 Low) *2 | 04/08/2026 06:00:00 |
| Blackpool Marton Timeseries Graph |
118 (4 Moderate) | 16 (1 Low) | n/m | 9 (1 Low) | 18 (2 Low) *2 | 04/08/2026 10:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | n/m | 04/08/2026 10:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 22 (1 Low) | n/m | n/m | 24 (2 Low) *1 | 04/08/2026 10:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 15 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *1 | 04/08/2026 01:00:00 |
| Crewe Coppenhall Timeseries Graph |
129 (5 Moderate) | 13 (1 Low) | n/m | 7 (1 Low) | 17 (2 Low) *2 | 04/08/2026 12:00:00 |
| Glazebury Timeseries Graph |
110 (4 Moderate) | 18 (1 Low) | n/m | 7 (1 Low) | 21 (2 Low) *2 | 04/08/2026 13:00:00 |
| Liverpool Speke Timeseries Graph |
123 (5 Moderate) | 16 (1 Low) | 14 (1 Low) | 11 (1 Low) | 22 (2 Low) *1 | 04/08/2026 09:30:00 |
| Liverpool Thirlmere Park Timeseries Graph |
121 (5 Moderate) | n/m | n/m | 8 (1 Low) | 19 (2 Low) *2 | 04/08/2026 09:00:00 |
| Manchester Piccadilly Timeseries Graph |
101 (4 Moderate) | 41 (1 Low) | 3 (1 Low) | 10 (1 Low) | 20 (2 Low) *2 | 03/08/2026 20:15:00 |
| Manchester Sharston Timeseries Graph |
115 (4 Moderate) | 11 (1 Low) | n/m | 8 (1 Low) | 19 (2 Low) *2 | 04/08/2026 11:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 04/08/2026 12:00:00 |
| Preston Timeseries Graph |
110 (4 Moderate) | 21 (1 Low) | n/m | 8 (1 Low) | 17 (2 Low) *2 | 04/08/2026 09:00:00 |
| Rochdale Belfield Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 20 (2 Low) *2 | 04/08/2026 05:00:00 |
| Salford Eccles Timeseries Graph |
118 (4 Moderate) | 30 (1 Low) | n/m | 9 (1 Low) | 24 (2 Low) *2 | 04/08/2026 13:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 20 (1 Low) | n/m | n/m | n/m | 04/08/2026 15:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 44 (1 Low) | n/m | n/m | 24 (2 Low) *1 | 04/08/2026 09:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 04/08/2026 17:00:00 |
| Warrington Timeseries Graph |
n/m | n/a | n/m | 6 (1 Low) | 23 (2 Low) *1 | 04/08/2026 13:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 31 (1 Low) | n/m | n/m | n/m | 03/08/2026 19:00:00 |
| Wigan Centre Timeseries Graph |
104 (4 Moderate) | 28 (1 Low) | n/m | 10 (1 Low) | 24 (2 Low) *2 | 04/08/2026 09:00:00 |
| Wirral Tranmere Timeseries Graph |
125 (5 Moderate) | 16 (1 Low) | n/m | 8 (1 Low) | 17 (2 Low) *2 | 04/08/2026 09:00:00 |
Northern Ireland
| 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 |
| Armagh Roadside Timeseries Graph |
n/m | 53 (1 Low) | n/m | n/m | 17 (2 Low) *1 | 04/08/2026 09:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | n/m | 04/08/2026 10:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 17 (1 Low) | 3 (1 Low) | n/m | n/m | 03/08/2026 22:15:00 |
| Belfast Centre Timeseries Graph |
90 (3 Low) | 31 (1 Low) | 7 (1 Low) | 11 (1 Low) | 21 (2 Low) *2 | 04/08/2026 02:15:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 71 (2 Low) | n/m | n/m | 22 (2 Low) *1 | 04/08/2026 08:00:00 |
| Derry Rosemount Timeseries Graph |
80 (3 Low) | 18 (1 Low) | 2 (1 Low) | 5 (1 Low) | 16 (1 Low) *1 | 03/08/2026 19:15:00 |
| Lough Navar Timeseries Graph |
84 (3 Low) | n/m | n/m | 6 (1 Low) | 10 (1 Low) *2 | 04/08/2026 03:00:00 |
Scottish Borders
| 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 |
| Dumfries Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/m | n/m | 04/08/2026 10:00:00 |
| Eskdalemuir Timeseries Graph |
80 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 03/08/2026 23:00:00 |
| Peebles Timeseries Graph |
77 (3 Low) | 5 (1 Low) | n/m | n/m | n/m | 04/08/2026 06:00:00 |
South East
| 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 |
| Aylesbury A4157 Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | n/m | 04/08/2026 10:00:00 |
| Brighton Preston Park Timeseries Graph |
113 (4 Moderate) | 23 (1 Low) | n/m | 11 (1 Low) | 47 (3 Low) *2 | 04/08/2026 12:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | n/a | n/m | 7 (1 Low) | 26 (2 Low) *1 | 04/08/2026 14:00:00 |
| Chilbolton Observatory Timeseries Graph |
153 (6 Moderate) | 12 (1 Low) | 4 (1 Low) | 8 (1 Low) | 17 (2 Low) *2 | 03/08/2026 19:15:00 |
| Eastbourne Timeseries Graph |
118 (4 Moderate) | 6 (1 Low) | n/m | 7 (1 Low) | 16 (1 Low) *2 | 04/08/2026 10:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 15 (1 Low) *2 | 04/08/2026 08:00:00 |
| Horley Timeseries Graph |
n/m | 65 (1 Low) | n/m | 7 (1 Low) | 17 (2 Low) *2 | 04/08/2026 09:00:00 |
| Lullington Heath Timeseries Graph |
132 (5 Moderate) | 14 (1 Low) | 12 (1 Low) | 6 (1 Low) | 13 (1 Low) *2 | 04/08/2026 02:15:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 28 (2 Low) *2 | 04/08/2026 15:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
137 (5 Moderate) | n/m | n/m | 8 (1 Low) | 20 (2 Low) *2 | 04/08/2026 08:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | n/m | n/m | 04/08/2026 08:00:00 |
| Oxford St Ebbes Timeseries Graph |
136 (5 Moderate) | 37 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 04/08/2026 09:00:00 |
| Portsmouth Timeseries Graph |
137 (5 Moderate) | 35 (1 Low) | n/m | 7 (1 Low) | 16 (1 Low) *2 | 04/08/2026 07:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 62 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 04/08/2026 05:00:00 |
| Reading London Road Timeseries Graph |
n/m | 44 (1 Low) | n/m | n/m | 26 (2 Low) *1 | 04/08/2026 06:00:00 |
| Reading New Town Timeseries Graph |
138 (5 Moderate) | 39 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 04/08/2026 09:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | n/m | 04/08/2026 09:00:00 |
| Rochester Stoke Timeseries Graph |
116 (4 Moderate) | 22 (1 Low) | 5 (1 Low) | 10 (1 Low) | 20 (2 Low) *2 | 04/08/2026 08:30:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 23 (2 Low) *2 | 04/08/2026 10:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 84 (2 Low) | n/m | 8 (1 Low) | 19 (2 Low) *2 | 04/08/2026 07:00:00 |
| Southampton Centre Timeseries Graph |
131 (5 Moderate) | 56 (1 Low) | 4 (1 Low) | 9 (1 Low) | 18 (2 Low) *2 | 04/08/2026 17:15:00 |
| Storrington Roadside Timeseries Graph |
n/m | 31 (1 Low) | n/m | 10 (1 Low) | 31 (2 Low) *2 | 04/08/2026 08:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 43 (1 Low) | n/m | 8 (1 Low) | n/m | 03/08/2026 04:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 17 (2 Low) *2 | 04/08/2026 10:00:00 |
South Wales
| 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 |
| Cardiff Centre Timeseries Graph |
131 (5 Moderate) | 28 (1 Low) | 3 (1 Low) | 11 (1 Low) | 24 (2 Low) *1 | 03/08/2026 23:00:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 20 (1 Low) | n/m | n/m | 28 (2 Low) *1 | 04/08/2026 01:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 62 (1 Low) | n/m | 7 (1 Low) | 19 (2 Low) *1 | 04/08/2026 07:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
143 (6 Moderate) | 15 (1 Low) | n/m | n/m | n/m | 03/08/2026 21:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 39 (1 Low) | n/m | n/m | n/m | 04/08/2026 07:00:00 |
| Narberth Timeseries Graph |
117 (4 Moderate) | 7 (1 Low) | 2 (1 Low) | 7 (1 Low) | 17 (2 Low) *2 | 03/08/2026 12:30:00 |
| Newport Timeseries Graph |
n/m | 19 (1 Low) | n/m | 7 (1 Low) | 16 (1 Low) *2 | 04/08/2026 05:00:00 |
| Port Talbot Margam Timeseries Graph |
45 (2 Low) | 8 (1 Low) | 3 (1 Low) | n/a | n/a | 04/08/2026 11:45:00 |
| Swansea Roadside Timeseries Graph |
n/m | 44 (1 Low) | n/m | 13 (2 Low) | 22 (2 Low) *1 | 04/08/2026 01:00:00 |
South West
| 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 |
| Barnstaple A39 Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 14 (1 Low) *2 | 04/08/2026 02:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/m | n/m | 04/08/2026 18:00:00 |
| Bournemouth Timeseries Graph |
126 (5 Moderate) | 15 (1 Low) | n/m | 11 (1 Low) | n/m | 04/08/2026 09:00:00 |
| Bournemouth Bourne Valley Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 17 (2 Low) *2 | 04/08/2026 08:00:00 |
| Bridgwater A372 Westonzoyland Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 04/08/2026 05:00:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 16 (1 Low) *2 | 04/08/2026 04:00:00 |
| Bristol St Paul's Timeseries Graph |
131 (5 Moderate) | 16 (1 Low) | n/m | 9 (1 Low) | 22 (2 Low) *1 | 04/08/2026 05:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 40 (1 Low) | n/m | 8 (1 Low) | 18 (2 Low) *2 | 04/08/2026 01:00:00 |
| Charlton Mackrell Timeseries Graph |
129 (5 Moderate) | 12 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) *2 | 04/08/2026 06:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | n/m | 04/08/2026 07:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 50 (1 Low) | n/m | 9 (1 Low) | n/m | 04/08/2026 09:00:00 |
| Exeter Roadside Timeseries Graph |
112 (4 Moderate) | 14 (1 Low) | n/m | n/m | n/m | 03/08/2026 22:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 17 (2 Low) *2 | 04/08/2026 05:00:00 |
| Honiton Timeseries Graph |
127 (5 Moderate) | 7 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 04/08/2026 03:00:00 |
| Plymouth Centre Timeseries Graph |
103 (4 Moderate) | 25 (1 Low) | n/m | 10 (1 Low) | 21 (2 Low) *2 | 04/08/2026 01:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 14 (1 Low) | n/m | n/m | n/m | 03/08/2026 21:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 6 (1 Low) | 21 (2 Low) *1 | 04/08/2026 01:00:00 |
| Swindon Walcot Timeseries Graph |
139 (5 Moderate) | 7 (1 Low) | n/m | 6 (1 Low) | 16 (1 Low) *2 | 04/08/2026 07:00:00 |
| Yarner Wood Timeseries Graph |
114 (4 Moderate) | 5 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) *2 | 04/08/2026 03:00:00 |
West Ireland
| 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 |
93 (3 Low) | n/m | n/m | n/m | n/m | 04/08/2026 17:00:00 |
West Midlands
| 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 |
| Bedworth Collycroft Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 20 (2 Low) *2 | 04/08/2026 09:00:00 |
| Birmingham A4540 Roadside Timeseries Graph |
119 (4 Moderate) | 62 (1 Low) | n/m | 8 (1 Low) | 24 (2 Low) *2 | 04/08/2026 10:00:00 |
| Birmingham Hall Green Timeseries Graph |
133 (5 Moderate) | 14 (1 Low) | n/m | 8 (1 Low) | 25 (2 Low) *2 | 04/08/2026 06:00:00 |
| Birmingham Ladywood Timeseries Graph |
96 (3 Low) | 20 (1 Low) | 3 (1 Low) | 7 (1 Low) | 19 (2 Low) *2 | 03/08/2026 21:15:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 19 (2 Low) *2 | 04/08/2026 07:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
120 (4 Moderate) | 25 (1 Low) | n/m | 8 (1 Low) | 19 (2 Low) *2 | 04/08/2026 08:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 25 (1 Low) | n/m | 8 (1 Low) | n/m | 04/08/2026 07:00:00 |
| Coventry Allesley Timeseries Graph |
132 (5 Moderate) | 29 (1 Low) | n/m | 7 (1 Low) | 18 (2 Low) *2 | 04/08/2026 09:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 41 (1 Low) | n/m | 8 (1 Low) | 20 (2 Low) *2 | 04/08/2026 09:00:00 |
| Leamington Spa Timeseries Graph |
148 (6 Moderate) | 19 (1 Low) | n/m | 7 (1 Low) | 19 (2 Low) *2 | 04/08/2026 09:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | 7 (1 Low) | 17 (2 Low) *2 | 04/08/2026 09:00:00 |
| Leominster Timeseries Graph |
103 (4 Moderate) | 12 (1 Low) | n/m | n/m | n/m | 03/08/2026 19:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 41 (1 Low) | n/m | 9 (1 Low) | 22 (2 Low) *2 | 04/08/2026 07:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 18 (2 Low) *2 | 04/08/2026 10:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 61 (1 Low) | n/m | 10 (1 Low) | 21 (2 Low) *2 | 04/08/2026 10:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
118 (4 Moderate) | 25 (1 Low) | n/m | 8 (1 Low) | 19 (2 Low) *2 | 04/08/2026 11:00:00 |
| Telford Hollinswood Timeseries Graph |
147 (6 Moderate) | 15 (1 Low) | n/m | 7 (1 Low) | 18 (2 Low) *2 | 04/08/2026 09:00:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | 18 (2 Low) *2 | 04/08/2026 06:00:00 |
| Walsall Woodlands Timeseries Graph |
139 (5 Moderate) | 22 (1 Low) | n/m | n/m | n/m | 03/08/2026 19:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
126 (5 Moderate) | 22 (1 Low) | n/m | n/m | n/m | 03/08/2026 20:00:00 |
| Wolverhampton East Park Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 24 (2 Low) *2 | 04/08/2026 07:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 7 (1 Low) | 17 (2 Low) *2 | 04/08/2026 08:00:00 |
Yorkshire & Humberside
| 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 |
| Barnsley Gawber Timeseries Graph |
122 (5 Moderate) | 22 (1 Low) | 6 (1 Low) | 12 (2 Low) | 25 (2 Low) *2 | 03/08/2026 18:15:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 37 (1 Low) | n/m | n/m | n/m | 04/08/2026 11:00:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 27 (2 Low) *2 | 04/08/2026 13:00:00 |
| Bradford West Park Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 26 (2 Low) *2 | 04/08/2026 13:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
106 (4 Moderate) | 25 (1 Low) | n/m | 12 (2 Low) | 25 (2 Low) *2 | 04/08/2026 14:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 24 (1 Low) | n/m | 12 (2 Low) | n/m | 04/08/2026 13:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 20 (2 Low) *2 | 04/08/2026 15:00:00 |
| High Muffles Timeseries Graph |
80 (3 Low) | 5 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *2 | 04/08/2026 17:00:00 |
| Hull Freetown Timeseries Graph |
91 (3 Low) | 28 (1 Low) | 2 (1 Low) | 11 (1 Low) | 25 (2 Low) *2 | 04/08/2026 08:15:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 44 (1 Low) | n/m | 13 (2 Low) | 26 (2 Low) *2 | 04/08/2026 13:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
95 (3 Low) | 13 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 04/08/2026 13:00:00 |
| Leeds Centre Timeseries Graph |
103 (4 Moderate) | 24 (1 Low) | 4 (1 Low) | 12 (2 Low) | 26 (2 Low) *2 | 03/08/2026 17:00:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 33 (1 Low) | n/m | 13 (2 Low) | 35 (3 Low) *1 | 04/08/2026 16:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 20 (2 Low) *2 | 04/08/2026 13:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 17 (1 Low) | 4 (1 Low) | 9 (1 Low) | 35 (3 Low) *1 | 03/08/2026 18:15:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 43 (1 Low) | n/m | 13 (2 Low) | n/m | 04/08/2026 12:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
106 (4 Moderate) | 16 (1 Low) | n/m | 11 (1 Low) | 22 (2 Low) *2 | 04/08/2026 12:00:00 |
| Sheffield Tinsley Timeseries Graph |
110 (4 Moderate) | 20 (1 Low) | n/m | 10 (1 Low) | 23 (2 Low) *2 | 04/08/2026 13:00:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 29 (2 Low) *2 | 04/08/2026 13:00:00 |
| York Bootham Timeseries Graph |
92 (3 Low) | 13 (1 Low) | n/m | 9 (1 Low) | 21 (2 Low) *1 | 04/08/2026 18:00:00 |
| York Fishergate Timeseries Graph |
n/m | 26 (1 Low) | n/m | 7 (1 Low) | 29 (2 Low) *1 | 04/08/2026 15:00:00 |
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