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 7am Sat 18th Jul 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 |
86 (3 Low) | n/m | n/m | 15 (2 Low) | 21 (2 Low) *2 | 18/07/2026 01:00:00 |
| Bush Estate Timeseries Graph |
92 (3 Low) | 7 (1 Low) | n/m | n/m | n/m | 17/07/2026 18:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | n/m | 17/07/2026 11:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 14 (1 Low) | n/m | n/m | n/m | 17/07/2026 09:00:00 |
| Edinburgh St Leonards Timeseries Graph |
87 (3 Low) | 10 (1 Low) | 2 (1 Low) | 14 (2 Low) | 19 (2 Low) *2 | 17/07/2026 14:15:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 18 (1 Low) | n/m | n/m | n/m | 18/07/2026 07:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 14 (1 Low) | n/m | 25 (3 Low) | 32 (2 Low) *2 | 18/07/2026 01:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 84 (2 Low) | n/m | n/m | n/m | 18/07/2026 01:00:00 |
| Glasgow Townhead Timeseries Graph |
112 (4 Moderate) | 13 (1 Low) | n/m | 21 (2 Low) | 27 (2 Low) *2 | 18/07/2026 01:00:00 |
| Grangemouth Timeseries Graph |
n/m | 16 (1 Low) | 4 (1 Low) | n/a | n/a | 17/07/2026 22:30:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 30 (1 Low) | n/m | n/m | n/m | 17/07/2026 08:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 29 (1 Low) | n/m | 20 (2 Low) | 29 (2 Low) *2 | 18/07/2026 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 |
103 (4 Moderate) | 8 (1 Low) | n/m | 19 (2 Low) | 26 (2 Low) *2 | 18/07/2026 01:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | 19 (1 Low) | n/m | 23 (2 Low) | 57 (4 Moderate) *2 | 18/07/2026 01:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 27 (1 Low) | n/m | 20 (2 Low) | n/m | 18/07/2026 03:00:00 |
| Derby Stockbrook Park Timeseries Graph |
108 (4 Moderate) | n/m | n/m | 18 (2 Low) | 25 (2 Low) *2 | 18/07/2026 03:00:00 |
| Ladybower Timeseries Graph |
112 (4 Moderate) | 5 (1 Low) | 1 (1 Low) | 19 (2 Low) | 27 (2 Low) *2 | 17/07/2026 11:45:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 29 (1 Low) | n/m | 20 (2 Low) | 29 (2 Low) *2 | 18/07/2026 04:00:00 |
| Leicester University Timeseries Graph |
118 (4 Moderate) | 19 (1 Low) | n/m | 17 (2 Low) | 24 (2 Low) *2 | 18/07/2026 04:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 48 (1 Low) | n/m | n/m | n/m | 17/07/2026 13:00:00 |
| Loughborough Thorpe Acre Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 24 (2 Low) *2 | 18/07/2026 03:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 26 (2 Low) *2 | 18/07/2026 02:00:00 |
| Northampton Spring Park Timeseries Graph |
118 (4 Moderate) | 10 (1 Low) | n/m | 20 (2 Low) | n/m | 18/07/2026 02:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 25 (2 Low) *2 | 18/07/2026 02:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
106 (4 Moderate) | 11 (1 Low) | 2 (1 Low) | 20 (2 Low) | 28 (2 Low) *2 | 17/07/2026 21:45:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 32 (1 Low) | n/m | 19 (2 Low) | 27 (2 Low) *2 | 18/07/2026 02:00:00 |
| Tallington Timeseries Graph |
114 (4 Moderate) | n/m | n/m | 17 (2 Low) | 24 (2 Low) *2 | 18/07/2026 03:00:00 |
| Toft Newton Timeseries Graph |
103 (4 Moderate) | 5 (1 Low) | n/m | 18 (2 Low) | 25 (2 Low) *2 | 18/07/2026 01:00:00 |
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 | 9 (1 Low) | n/m | 15 (2 Low) | 24 (2 Low) *2 | 18/07/2026 07:00:00 |
| Cambridge King's Hedges Timeseries Graph |
n/m | n/m | n/m | 17 (2 Low) | 25 (2 Low) *2 | 18/07/2026 05:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 139 (3 Low) | n/m | n/m | n/m | 17/07/2026 13:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 60 (1 Low) | n/m | 17 (2 Low) | n/m | 18/07/2026 07:00:00 |
| Norwich Lakenfields Timeseries Graph |
98 (3 Low) | 5 (1 Low) | n/m | 14 (2 Low) | 19 (2 Low) *2 | 18/07/2026 05:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 17 (2 Low) | 23 (2 Low) *2 | 18/07/2026 03:00:00 |
| Sibton Timeseries Graph |
99 (3 Low) | n/m | n/m | 14 (2 Low) | 21 (2 Low) *2 | 18/07/2026 07:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 19 (2 Low) *2 | 18/07/2026 07:00:00 |
| Southend-on-Sea Timeseries Graph |
98 (3 Low) | 14 (1 Low) | n/m | 15 (2 Low) | 22 (2 Low) *2 | 18/07/2026 07:00:00 |
| St Osyth Timeseries Graph |
106 (4 Moderate) | 6 (1 Low) | n/m | 15 (2 Low) | 23 (2 Low) *2 | 18/07/2026 07:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 22 (1 Low) | n/m | 13 (2 Low) | 20 (2 Low) *1 | 18/07/2026 06:00:00 |
| Stevenage St Georges Way South Timeseries Graph |
n/m | n/m | n/m | 17 (2 Low) | n/m | 18/07/2026 07:00:00 |
| Thurrock Timeseries Graph |
100 (3 Low) | 32 (1 Low) | 2 (1 Low) | 15 (2 Low) | 22 (2 Low) *2 | 17/07/2026 13:15:00 |
| Weybourne Timeseries Graph |
93 (3 Low) | n/m | n/m | 14 (2 Low) | 19 (2 Low) *2 | 18/07/2026 03:00:00 |
| Wicken Fen Timeseries Graph |
109 (4 Moderate) | 5 (1 Low) | 2 (1 Low) | 15 (2 Low) | 22 (2 Low) *2 | 17/07/2026 24:45: |
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 | 32 (1 Low) | n/m | n/a | n/a | 15/07/2026 08:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | n/a | 13/07/2026 15:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/m | n/m | 17/07/2026 20:00:00 |
| London A406 N Circular Timeseries Graph |
n/m | n/m | n/m | 17 (2 Low) | n/m | 18/07/2026 07:00:00 |
| London Bexley Timeseries Graph |
n/m | 30 (1 Low) | n/m | 11 (1 Low) | 18 (2 Low) *2 | 18/07/2026 07:00:00 |
| London Bloomsbury Timeseries Graph |
102 (4 Moderate) | 51 (1 Low) | 1 (1 Low) | 15 (2 Low) | 23 (2 Low) *2 | 17/07/2026 20:30:00 |
| London Farringdon Street Timeseries Graph |
n/m | 31 (1 Low) | n/m | 18 (2 Low) | n/m | 18/07/2026 07:00:00 |
| London Haringey Priory Park South Timeseries Graph |
100 (3 Low) | 14 (1 Low) | n/m | 15 (2 Low) | 23 (2 Low) *2 | 18/07/2026 07:00:00 |
| London Harlington Timeseries Graph |
117 (4 Moderate) | 18 (1 Low) | n/m | 14 (2 Low) | 23 (2 Low) *2 | 18/07/2026 07:00:00 |
| London Hillingdon Timeseries Graph |
123 (5 Moderate) | 15 (1 Low) | n/m | 16 (2 Low) | 25 (2 Low) *2 | 18/07/2026 07:00:00 |
| London Honor Oak Park Timeseries Graph |
130 (5 Moderate) | n/m | n/m | 14 (2 Low) | 21 (2 Low) *2 | 18/07/2026 07:00:00 |
| London Marylebone Road Timeseries Graph |
119 (4 Moderate) | 29 (1 Low) | 2 (1 Low) | 12 (2 Low) | 23 (2 Low) *1 | 17/07/2026 11:15:00 |
| London N. Kensington Timeseries Graph |
116 (4 Moderate) | 16 (1 Low) | 1 (1 Low) | 15 (2 Low) | 23 (2 Low) *2 | 17/07/2026 21:15:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | 22 (2 Low) *2 | 18/07/2026 07:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | 22 (2 Low) *2 | 18/07/2026 07:00:00 |
| London Westminster Timeseries Graph |
112 (4 Moderate) | 28 (1 Low) | n/m | n/m | n/m | 17/07/2026 20:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 33 (1 Low) | n/m | n/m | 36 (3 Low) *1 | 17/07/2026 15:00:00 |
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 |
74 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 17/07/2026 17:00:00 |
| Inverness Timeseries Graph |
n/m | 11 (1 Low) | n/m | 8 (1 Low) | 12 (1 Low) *2 | 18/07/2026 01:00:00 |
| Lerwick Timeseries Graph |
80 (3 Low) | n/m | n/m | n/m | n/m | 17/07/2026 15:00:00 |
| Strathvaich Timeseries Graph |
82 (3 Low) | n/m | n/m | n/m | n/m | 17/07/2026 18:00:00 |
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 | 15 (2 Low) | 20 (2 Low) *2 | 18/07/2026 01:00:00 |
| Hartlepool St Abbs Walk Timeseries Graph |
93 (3 Low) | 9 (1 Low) | n/m | 16 (2 Low) | 24 (2 Low) *2 | 18/07/2026 01:00:00 |
| Kielder Water Timeseries Graph |
81 (3 Low) | n/m | n/m | 12 (2 Low) | 15 (1 Low) *2 | 18/07/2026 01:00:00 |
| Middlesbrough Timeseries Graph |
84 (3 Low) | 17 (1 Low) | 1 (1 Low) | 12 (2 Low) | 21 (2 Low) *1 | 17/07/2026 09:15:00 |
| Newcastle Centre Timeseries Graph |
87 (3 Low) | 20 (1 Low) | n/m | 15 (2 Low) | 21 (2 Low) *1 | 18/07/2026 01:00:00 |
| 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 | 14 (2 Low) | 18 (2 Low) *2 | 18/07/2026 01:00:00 |
| Redcar Milford Walk Timeseries Graph |
n/m | n/m | n/m | 16 (2 Low) | 22 (2 Low) *2 | 18/07/2026 01:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 21 (1 Low) | n/m | 15 (2 Low) | n/m | 18/07/2026 01:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 21 (1 Low) | n/m | 15 (2 Low) | 24 (2 Low) *1 | 18/07/2026 01:00:00 |
| Sunderland Silksworth Timeseries Graph |
90 (3 Low) | 35 (1 Low) | n/m | 15 (2 Low) | 20 (2 Low) *2 | 18/07/2026 01:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 9 (1 Low) | n/m | 13 (2 Low) | n/m | 18/07/2026 01:00:00 |
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 |
75 (3 Low) | 4 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 18/07/2026 01:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/m | n/m | 17/07/2026 09:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 10 (1 Low) | n/m | n/m | n/m | 18/07/2026 01:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 19 (1 Low) | n/m | n/m | n/m | 18/07/2026 05:00:00 |
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 |
119 (4 Moderate) | 6 (1 Low) | n/m | n/m | n/m | 17/07/2026 22:00:00 |
| Wrexham Timeseries Graph |
n/m | 29 (1 Low) | 2 (1 Low) | 17 (2 Low) | 24 (2 Low) *2 | 17/07/2026 09:15:00 |
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 | 17 (1 Low) | n/m | 22 (2 Low) | n/m | 18/07/2026 07:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 21 (1 Low) | n/m | n/m | n/m | 18/07/2026 01:00:00 |
| Blackburn Audley Park Timeseries Graph |
94 (3 Low) | n/m | n/m | 18 (2 Low) | 23 (2 Low) *2 | 18/07/2026 03:00:00 |
| Blackpool Marton Timeseries Graph |
91 (3 Low) | 14 (1 Low) | n/m | 23 (2 Low) | 30 (2 Low) *2 | 18/07/2026 05:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 23 (2 Low) | n/m | 18/07/2026 07:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 21 (1 Low) | n/m | n/m | n/a | 17/07/2026 24:00: |
| Carlisle Morton A595 Timeseries Graph |
n/m | 12 (1 Low) | n/m | 15 (2 Low) | 19 (2 Low) *1 | 18/07/2026 01:00:00 |
| Crewe Coppenhall Timeseries Graph |
121 (5 Moderate) | 26 (1 Low) | n/m | 21 (2 Low) | 29 (2 Low) *2 | 18/07/2026 07:00:00 |
| Glazebury Timeseries Graph |
99 (3 Low) | 18 (1 Low) | n/m | 19 (2 Low) | 26 (2 Low) *2 | 18/07/2026 03:00:00 |
| Liverpool Speke Timeseries Graph |
96 (3 Low) | 30 (1 Low) | 2 (1 Low) | 20 (2 Low) | 34 (3 Low) *1 | 17/07/2026 19:00:00 |
| Liverpool Thirlmere Park Timeseries Graph |
90 (3 Low) | n/m | n/m | 21 (2 Low) | 31 (2 Low) *2 | 18/07/2026 07:00:00 |
| Manchester Piccadilly Timeseries Graph |
86 (3 Low) | 25 (1 Low) | 1 (1 Low) | 25 (3 Low) | 35 (3 Low) *2 | 17/07/2026 10:15:00 |
| Manchester Sharston Timeseries Graph |
106 (4 Moderate) | 17 (1 Low) | n/m | 22 (2 Low) | 29 (2 Low) *2 | 18/07/2026 03:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 21 (2 Low) | n/m | 18/07/2026 07:00:00 |
| Preston Timeseries Graph |
86 (3 Low) | 13 (1 Low) | n/m | 18 (2 Low) | 24 (2 Low) *2 | 18/07/2026 03:00:00 |
| Salford Eccles Timeseries Graph |
100 (3 Low) | 25 (1 Low) | n/m | 21 (2 Low) | 30 (2 Low) *2 | 18/07/2026 03:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 30 (1 Low) | n/m | n/m | n/m | 17/07/2026 14:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/m | 26 (2 Low) *1 | 17/07/2026 10:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | n/m | 18/07/2026 06:00:00 |
| Warrington Timeseries Graph |
n/m | 25 (1 Low) | n/m | 16 (2 Low) | 30 (2 Low) *1 | 18/07/2026 06:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 39 (1 Low) | n/m | n/m | n/m | 17/07/2026 09:00:00 |
| Wigan Centre Timeseries Graph |
93 (3 Low) | 14 (1 Low) | n/m | 22 (2 Low) | 33 (2 Low) *2 | 18/07/2026 04:00:00 |
| Wirral Tranmere Timeseries Graph |
100 (3 Low) | 24 (1 Low) | n/m | 19 (2 Low) | 26 (2 Low) *2 | 18/07/2026 07:00:00 |
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 | 28 (1 Low) | n/m | n/m | 22 (2 Low) *1 | 17/07/2026 11:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 8 (1 Low) | n/m | n/m | n/m | 17/07/2026 09:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | 2 (1 Low) | 4 (1 Low) | n/m | n/m | 17/07/2026 21:15:00 |
| Belfast Centre Timeseries Graph |
69 (3 Low) | 10 (1 Low) | 2 (1 Low) | 13 (2 Low) | 23 (2 Low) *2 | 17/07/2026 11:45:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 42 (1 Low) | n/m | n/m | 21 (2 Low) *1 | 17/07/2026 08:00:00 |
| Derry Rosemount Timeseries Graph |
73 (3 Low) | 3 (1 Low) | 2 (1 Low) | 5 (1 Low) | 19 (2 Low) *1 | 17/07/2026 14:30:00 |
| Lough Navar Timeseries Graph |
70 (3 Low) | n/m | n/m | 7 (1 Low) | 11 (1 Low) *2 | 18/07/2026 01:00:00 |
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 | 20 (1 Low) | n/m | n/m | n/m | 17/07/2026 18:00:00 |
| Eskdalemuir Timeseries Graph |
86 (3 Low) | 2 (1 Low) | n/m | n/m | n/m | 17/07/2026 20:00:00 |
| Peebles Timeseries Graph |
94 (3 Low) | 3 (1 Low) | n/m | n/m | n/m | 17/07/2026 19:00:00 |
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 | 15 (2 Low) | n/m | 18/07/2026 07:00:00 |
| Brighton Preston Park Timeseries Graph |
76 (3 Low) | 26 (1 Low) | n/m | 12 (2 Low) | 18 (2 Low) *2 | 18/07/2026 07:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 28 (1 Low) | n/m | 11 (1 Low) | 25 (2 Low) *1 | 18/07/2026 07:00:00 |
| Chilbolton Observatory Timeseries Graph |
134 (5 Moderate) | 10 (1 Low) | 2 (1 Low) | 18 (2 Low) | 29 (2 Low) *2 | 17/07/2026 10:15:00 |
| Eastbourne Timeseries Graph |
103 (4 Moderate) | 15 (1 Low) | n/m | 12 (2 Low) | 18 (2 Low) *2 | 18/07/2026 07:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 16 (2 Low) | 24 (2 Low) *2 | 18/07/2026 07:00:00 |
| Horley Timeseries Graph |
n/m | 43 (1 Low) | n/m | 14 (2 Low) | 22 (2 Low) *2 | 18/07/2026 07:00:00 |
| Lullington Heath Timeseries Graph |
113 (4 Moderate) | 13 (1 Low) | 2 (1 Low) | 11 (1 Low) | 15 (1 Low) *2 | 18/07/2026 06:15:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 21 (2 Low) | 33 (2 Low) *2 | 18/07/2026 07:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
115 (4 Moderate) | n/m | n/m | 17 (2 Low) | 25 (2 Low) *2 | 18/07/2026 07:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 27 (1 Low) | n/m | n/m | n/m | 17/07/2026 21:00:00 |
| Oxford St Ebbes Timeseries Graph |
129 (5 Moderate) | 13 (1 Low) | n/m | 16 (2 Low) | 24 (2 Low) *2 | 18/07/2026 07:00:00 |
| Portsmouth Timeseries Graph |
104 (4 Moderate) | 37 (1 Low) | n/m | 13 (2 Low) | 35 (3 Low) *2 | 18/07/2026 07:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 36 (1 Low) | n/m | 13 (2 Low) | 22 (2 Low) *2 | 18/07/2026 07:00:00 |
| Reading London Road Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | 26 (2 Low) *1 | 17/07/2026 23:00:00 |
| Reading New Town Timeseries Graph |
123 (5 Moderate) | 11 (1 Low) | n/m | 16 (2 Low) | 23 (2 Low) *2 | 18/07/2026 07:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 16 (2 Low) | n/m | 18/07/2026 07:00:00 |
| Rochester Stoke Timeseries Graph |
108 (4 Moderate) | 12 (1 Low) | 1 (1 Low) | 16 (2 Low) | 23 (2 Low) *2 | 17/07/2026 11:00:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 16 (2 Low) | 29 (2 Low) *2 | 18/07/2026 07:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 45 (1 Low) | n/m | 13 (2 Low) | 23 (2 Low) *2 | 18/07/2026 07:00:00 |
| Southampton Centre Timeseries Graph |
103 (4 Moderate) | 31 (1 Low) | 1 (1 Low) | 14 (2 Low) | 25 (2 Low) *2 | 17/07/2026 07:15:00 |
| Storrington Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | 13 (2 Low) | 22 (2 Low) *2 | 18/07/2026 07:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 38 (1 Low) | n/m | 16 (2 Low) | n/m | 18/07/2026 07:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 22 (2 Low) *2 | 18/07/2026 07:00:00 |
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 |
104 (4 Moderate) | 23 (1 Low) | 2 (1 Low) | 15 (2 Low) | 24 (2 Low) *1 | 17/07/2026 10:00:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 42 (1 Low) | n/m | n/m | 28 (2 Low) *1 | 17/07/2026 23:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 52 (1 Low) | n/m | 11 (1 Low) | 26 (2 Low) *1 | 18/07/2026 07:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
113 (4 Moderate) | 10 (1 Low) | n/m | n/m | n/m | 17/07/2026 18:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | 35 (1 Low) | n/m | n/m | n/m | 18/07/2026 06:00:00 |
| Narberth Timeseries Graph |
102 (4 Moderate) | n/a | 4 (1 Low) | 20 (2 Low) | 26 (2 Low) *2 | 17/07/2026 11:15:00 |
| Newport Timeseries Graph |
n/m | 30 (1 Low) | n/m | 17 (2 Low) | 29 (2 Low) *2 | 18/07/2026 07:00:00 |
| Port Talbot Margam Timeseries Graph |
98 (3 Low) | 32 (1 Low) | 2 (1 Low) | 17 (2 Low) | 31 (2 Low) *3 | 17/07/2026 11:30:00 |
| Swansea Roadside Timeseries Graph |
n/m | 34 (1 Low) | n/m | 19 (2 Low) | 25 (2 Low) *1 | 18/07/2026 05:00:00 |
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 | 15 (2 Low) | 24 (2 Low) *2 | 18/07/2026 07:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 39 (1 Low) | n/m | n/m | n/m | 16/07/2026 19:00:00 |
| Bournemouth Timeseries Graph |
105 (4 Moderate) | 15 (1 Low) | n/m | 13 (2 Low) | n/m | 18/07/2026 07:00:00 |
| Bournemouth Bourne Valley Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 22 (2 Low) *2 | 18/07/2026 07:00:00 |
| Bridgwater A372 Westonzoyland Timeseries Graph |
n/m | n/m | n/m | 15 (2 Low) | n/m | 18/07/2026 06:00:00 |
| Bristol Patchway Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 26 (2 Low) *2 | 18/07/2026 06:00:00 |
| Bristol St Paul's Timeseries Graph |
114 (4 Moderate) | 45 (1 Low) | n/m | 16 (2 Low) | 30 (2 Low) *1 | 18/07/2026 05:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 49 (1 Low) | n/m | 15 (2 Low) | 27 (2 Low) *2 | 18/07/2026 07:00:00 |
| Charlton Mackrell Timeseries Graph |
121 (5 Moderate) | 10 (1 Low) | n/m | 15 (2 Low) | 24 (2 Low) *2 | 18/07/2026 07:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | n/m | 18/07/2026 05:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 25 (1 Low) | n/m | 13 (2 Low) | n/m | 18/07/2026 07:00:00 |
| Exeter Roadside Timeseries Graph |
96 (3 Low) | 44 (1 Low) | n/m | n/m | n/m | 17/07/2026 22:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 29 (2 Low) *2 | 18/07/2026 07:00:00 |
| Honiton Timeseries Graph |
114 (4 Moderate) | 13 (1 Low) | n/m | 14 (2 Low) | 21 (2 Low) *2 | 18/07/2026 07:00:00 |
| Plymouth Centre Timeseries Graph |
90 (3 Low) | 47 (1 Low) | n/m | 15 (2 Low) | 23 (2 Low) *2 | 18/07/2026 07:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 17/07/2026 07:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 21 (2 Low) *1 | 18/07/2026 07:00:00 |
| Swindon Walcot Timeseries Graph |
133 (5 Moderate) | 15 (1 Low) | n/m | 16 (2 Low) | 25 (2 Low) *2 | 18/07/2026 07:00:00 |
| Yarner Wood Timeseries Graph |
121 (5 Moderate) | 4 (1 Low) | n/m | 13 (2 Low) | 18 (2 Low) *2 | 18/07/2026 07:00:00 |
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 |
74 (3 Low) | n/m | n/m | n/m | n/m | 17/07/2026 24:00: |
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 | 20 (2 Low) | 29 (2 Low) *2 | 18/07/2026 04:00:00 |
| Birmingham A4540 Roadside Timeseries Graph |
114 (4 Moderate) | 26 (1 Low) | n/m | 19 (2 Low) | 29 (2 Low) *2 | 18/07/2026 05:00:00 |
| Birmingham Hall Green Timeseries Graph |
128 (5 Moderate) | 18 (1 Low) | n/m | 20 (2 Low) | 29 (2 Low) *2 | 18/07/2026 05:00:00 |
| Birmingham Ladywood Timeseries Graph |
100 (3 Low) | 16 (1 Low) | 3 (1 Low) | 19 (2 Low) | 27 (2 Low) *2 | 17/07/2026 12:45:00 |
| Birmingham University Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 28 (2 Low) *2 | 18/07/2026 05:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
114 (4 Moderate) | 9 (1 Low) | n/m | 18 (2 Low) | 24 (2 Low) *2 | 18/07/2026 04:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 23 (1 Low) | n/m | 20 (2 Low) | n/m | 18/07/2026 05:00:00 |
| Coventry Allesley Timeseries Graph |
119 (4 Moderate) | 11 (1 Low) | n/m | 18 (2 Low) | 26 (2 Low) *2 | 18/07/2026 05:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | 18 (2 Low) | 26 (2 Low) *2 | 18/07/2026 05:00:00 |
| Leamington Spa Timeseries Graph |
131 (5 Moderate) | 9 (1 Low) | n/m | 18 (2 Low) | 27 (2 Low) *2 | 18/07/2026 05:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | n/a | n/m | 18 (2 Low) | 25 (2 Low) *2 | 18/07/2026 05:00:00 |
| Leominster Timeseries Graph |
131 (5 Moderate) | 19 (1 Low) | n/m | n/m | n/m | 17/07/2026 22:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 25 (1 Low) | n/m | 20 (2 Low) | 30 (2 Low) *2 | 18/07/2026 05:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 27 (2 Low) *2 | 18/07/2026 07:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | 51 (1 Low) | n/m | 22 (2 Low) | 32 (2 Low) *2 | 18/07/2026 04:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
106 (4 Moderate) | 27 (1 Low) | n/m | 21 (2 Low) | 31 (2 Low) *2 | 18/07/2026 05:00:00 |
| Telford Hollinswood Timeseries Graph |
140 (5 Moderate) | 17 (1 Low) | n/m | 18 (2 Low) | 26 (2 Low) *2 | 18/07/2026 07:00:00 |
| Walsall Caldmore Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 28 (2 Low) *2 | 18/07/2026 05:00:00 |
| Walsall Woodlands Timeseries Graph |
132 (5 Moderate) | 11 (1 Low) | n/m | n/m | n/m | 17/07/2026 21:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
122 (5 Moderate) | 17 (1 Low) | n/m | n/m | n/m | 17/07/2026 21:00:00 |
| Wolverhampton East Park Timeseries Graph |
n/m | n/m | n/m | 20 (2 Low) | 28 (2 Low) *2 | 18/07/2026 05:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 26 (2 Low) *2 | 18/07/2026 07:00:00 |
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 |
93 (3 Low) | 11 (1 Low) | 2 (1 Low) | 18 (2 Low) | 29 (2 Low) *2 | 18/07/2026 06:00:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 56 (1 Low) | n/m | n/m | n/m | 17/07/2026 18:00:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | 27 (2 Low) *2 | 18/07/2026 01:00:00 |
| Bradford West Park Timeseries Graph |
n/m | n/m | n/m | 19 (2 Low) | 27 (2 Low) *2 | 18/07/2026 01:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
91 (3 Low) | 25 (1 Low) | n/m | 18 (2 Low) | 25 (2 Low) *2 | 18/07/2026 01:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 34 (1 Low) | n/m | 19 (2 Low) | n/m | 18/07/2026 01:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 23 (2 Low) *2 | 18/07/2026 01:00:00 |
| High Muffles Timeseries Graph |
88 (3 Low) | 2 (1 Low) | n/m | 13 (2 Low) | 17 (2 Low) *2 | 18/07/2026 01:00:00 |
| Hull Freetown Timeseries Graph |
94 (3 Low) | 6 (1 Low) | 1 (1 Low) | 17 (2 Low) | 24 (2 Low) *2 | 17/07/2026 13:15:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 14 (1 Low) | n/m | 19 (2 Low) | 26 (2 Low) *2 | 18/07/2026 01:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
94 (3 Low) | 17 (1 Low) | n/m | 16 (2 Low) | 25 (2 Low) *2 | 18/07/2026 01:00:00 |
| Leeds Centre Timeseries Graph |
88 (3 Low) | 11 (1 Low) | 2 (1 Low) | 18 (2 Low) | 23 (2 Low) *2 | 17/07/2026 12:15:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 29 (1 Low) | n/m | 20 (2 Low) | 27 (2 Low) *1 | 18/07/2026 01:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 25 (2 Low) *2 | 18/07/2026 01:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 15 (1 Low) | 1 (1 Low) | 16 (2 Low) | 21 (2 Low) *1 | 17/07/2026 21:00:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 43 (1 Low) | n/m | 20 (2 Low) | n/m | 18/07/2026 01:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
94 (3 Low) | 15 (1 Low) | n/m | 21 (2 Low) | 29 (2 Low) *2 | 18/07/2026 01:00:00 |
| Sheffield Tinsley Timeseries Graph |
97 (3 Low) | 11 (1 Low) | n/m | 18 (2 Low) | 27 (2 Low) *2 | 18/07/2026 01:00:00 |
| Wakefield Alverthorpe Timeseries Graph |
n/m | n/m | n/m | 21 (2 Low) | 28 (2 Low) *2 | 18/07/2026 01:00:00 |
| York Bootham Timeseries Graph |
77 (3 Low) | 9 (1 Low) | n/m | 12 (2 Low) | 19 (2 Low) *1 | 18/07/2026 07:00:00 |
| York Fishergate Timeseries Graph |
n/m | 25 (1 Low) | n/m | n/a | n/a | 14/07/2026 08:00:00 |
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