Latest measured levels based on data provided by the 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
- Pollutant levels recorded for the hour up to 11pm Sun 18th May 2025
Central Scotland
| Latest measured levels based on data provided by the 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 |
89 (3 Low) | n/m | n/m | 7 (1 Low) | 12 (1 Low) *2 | 18/05/2025 23:00:00 |
| Bush Estate Timeseries Graph |
n/a | n/a | n/m | n/m | n/m | 18/05/2025 15:00:00 |
| Dumbarton Roadside Timeseries Graph |
n/m | 3 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Edinburgh Nicolson Street Timeseries Graph |
n/m | 2 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Edinburgh St Leonards Timeseries Graph |
82 (3 Low) | 4 (1 Low) | n/a | 7 (1 Low) | 15 (1 Low) *2 | 18/05/2025 23:00:00 |
| Glasgow Great Western Road Timeseries Graph |
n/m | 5 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Glasgow High Street Timeseries Graph |
n/m | 4 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) *2 | 18/05/2025 23:00:00 |
| Glasgow Kerbside Timeseries Graph |
n/m | 28 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Glasgow Townhead Timeseries Graph |
n/a | 5 (1 Low) | n/m | 6 (1 Low) | 14 (1 Low) *2 | 18/05/2025 23:00:00 |
| Grangemouth Timeseries Graph |
n/m | 11 (1 Low) | 2 (1 Low) | 7 (1 Low) | 16 (1 Low) *1 | 18/05/2025 23:00:00 |
| Grangemouth Moray Timeseries Graph |
n/m | 16 (1 Low) | n/m | n/m | n/m | 18/05/2025 22:00:00 |
| Greenock A8 Roadside Timeseries Graph |
n/m | 2 (1 Low) | n/m | 5 (1 Low) | 15 (1 Low) *2 | 18/05/2025 23:00:00 |
East Midlands
| Latest measured levels based on data provided by the 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 |
83 (3 Low) | 6 (1 Low) | n/m | 10 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Chesterfield Roadside Timeseries Graph |
n/m | n/a | n/m | 11 (1 Low) | 18 (2 Low) *2 | 18/05/2025 23:00:00 |
| Derby St Alkmund's Way Timeseries Graph |
n/m | 13 (1 Low) | n/m | 11 (1 Low) | n/m | 18/05/2025 23:00:00 |
| Derby Stockbrook Park Timeseries Graph |
74 (3 Low) | n/m | n/m | 10 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Ladybower Timeseries Graph |
95 (3 Low) | 2 (1 Low) | 4 (1 Low) | 10 (1 Low) | 15 (1 Low) *2 | 18/05/2025 23:00:00 |
| Leicester A594 Roadside Timeseries Graph |
n/m | 15 (1 Low) | n/m | 13 (2 Low) | 20 (2 Low) *2 | 18/05/2025 23:00:00 |
| Leicester University Timeseries Graph |
87 (3 Low) | 5 (1 Low) | n/m | 12 (2 Low) | 19 (2 Low) *2 | 18/05/2025 23:00:00 |
| Lincoln Canwick Road Timeseries Graph |
n/m | 6 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Mansfield Ladybrook Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 18 (2 Low) *2 | 18/05/2025 23:00:00 |
| Northampton Spring Park Timeseries Graph |
85 (3 Low) | 2 (1 Low) | n/m | 14 (2 Low) | n/m | 18/05/2025 23:00:00 |
| Nottingham Bilborough Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 18 (2 Low) *2 | 18/05/2025 23:00:00 |
| Nottingham Kenmore Gardens Timeseries Graph |
82 (3 Low) | 7 (1 Low) | 1 (1 Low) | 13 (2 Low) | 22 (2 Low) *2 | 18/05/2025 23:00:00 |
| Nottingham Western Boulevard Timeseries Graph |
n/m | 10 (1 Low) | n/m | 12 (2 Low) | 21 (2 Low) *2 | 18/05/2025 23:00:00 |
| Tallington Timeseries Graph |
86 (3 Low) | n/m | n/m | 11 (1 Low) | 18 (2 Low) *2 | 18/05/2025 23:00:00 |
| Toft Newton Timeseries Graph |
91 (3 Low) | 3 (1 Low) | n/m | 11 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
Eastern
| Latest measured levels based on data provided by the 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 | 2 (1 Low) | n/m | 11 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Cambridge Roadside Timeseries Graph |
n/m | 12 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Luton A505 Roadside Timeseries Graph |
n/m | 7 (1 Low) | n/m | 13 (2 Low) | n/m | 18/05/2025 23:00:00 |
| Norwich Lakenfields Timeseries Graph |
84 (3 Low) | 5 (1 Low) | n/m | 10 (1 Low) | 15 (1 Low) *2 | 18/05/2025 23:00:00 |
| Peterborough Garton End Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 19 (2 Low) *2 | 18/05/2025 23:00:00 |
| Sibton Timeseries Graph |
76 (3 Low) | n/m | n/m | 9 (1 Low) | 15 (1 Low) *2 | 18/05/2025 23:00:00 |
| Southend Shoeburyness Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 15 (1 Low) *2 | 18/05/2025 23:00:00 |
| Southend-on-Sea Timeseries Graph |
91 (3 Low) | 5 (1 Low) | n/m | 10 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| St Osyth Timeseries Graph |
101 (4 Moderate) | 2 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) *2 | 18/05/2025 23:00:00 |
| Stanford-le-Hope Roadside Timeseries Graph |
n/m | 9 (1 Low) | n/m | 12 (2 Low) | 20 (2 Low) *1 | 18/05/2025 23:00:00 |
| Thurrock Timeseries Graph |
n/a | 7 (1 Low) | 1 (1 Low) | 11 (1 Low) | 18 (2 Low) *2 | 18/05/2025 23:00:00 |
| Weybourne Timeseries Graph |
93 (3 Low) | n/m | n/m | 12 (2 Low) | 21 (2 Low) *2 | 18/05/2025 23:00:00 |
| Wicken Fen Timeseries Graph |
71 (3 Low) | 2 (1 Low) | n/a | 12 (2 Low) | 21 (2 Low) *2 | 18/05/2025 23:00:00 |
Greater London
| Latest measured levels based on data provided by the 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 | 13 (1 Low) | n/m | 14 (2 Low) | 30 (2 Low) *1 | 18/05/2025 23:00:00 |
| Ealing Horn Lane Timeseries Graph |
n/m | n/m | n/m | n/m | 25 (2 Low) *1 | 18/05/2025 23:00:00 |
| Haringey Roadside Timeseries Graph |
n/m | 15 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| London Bexley Timeseries Graph |
n/m | 12 (1 Low) | n/m | 12 (2 Low) | 19 (2 Low) *2 | 18/05/2025 23:00:00 |
| London Bloomsbury Timeseries Graph |
73 (3 Low) | 32 (1 Low) | 2 (1 Low) | 11 (1 Low) | 18 (2 Low) *2 | 18/05/2025 23:00:00 |
| London Haringey Priory Park South Timeseries Graph |
86 (3 Low) | 7 (1 Low) | n/m | 10 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| London Harlington Timeseries Graph |
n/a | n/a | n/m | 12 (2 Low) | 18 (2 Low) *2 | 18/05/2025 22:00:00 |
| London Hillingdon Timeseries Graph |
78 (3 Low) | 4 (1 Low) | n/m | 12 (2 Low) | 18 (2 Low) *2 | 18/05/2025 23:00:00 |
| London Honor Oak Park Timeseries Graph |
90 (3 Low) | n/m | n/m | 11 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| London Marylebone Road Timeseries Graph |
n/a | n/a | 1 (1 Low) | n/a | n/a | 18/05/2025 23:00:00 |
| London N. Kensington Timeseries Graph |
88 (3 Low) | 5 (1 Low) | 3 (1 Low) | 11 (1 Low) | 18 (2 Low) *2 | 18/05/2025 23:00:00 |
| London Norbury Manor School Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 16 (1 Low) *2 | 18/05/2025 23:00:00 |
| London Teddington Bushy Park Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 20 (2 Low) *2 | 18/05/2025 23:00:00 |
| London Westminster Timeseries Graph |
65 (2 Low) | 14 (1 Low) | n/m | 10 (1 Low) | n/m | 18/05/2025 23:00:00 |
| Southwark A2 Old Kent Road Timeseries Graph |
n/m | 29 (1 Low) | n/m | n/m | 24 (2 Low) *1 | 18/05/2025 23:00:00 |
Highland
| Latest measured levels based on data provided by the 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 |
86 (3 Low) | 0 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Inverness Timeseries Graph |
n/m | 1 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 18/05/2025 23:00:00 |
| Lerwick Timeseries Graph |
97 (3 Low) | n/m | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Strathvaich Timeseries Graph |
92 (3 Low) | n/m | n/m | n/m | n/m | 18/05/2025 23:00:00 |
North East
| Latest measured levels based on data provided by the 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 |
| Hartlepool St Abbs Walk Timeseries Graph |
92 (3 Low) | 1 (1 Low) | n/m | 12 (2 Low) | 27 (2 Low) *2 | 18/05/2025 23:00:00 |
| Kielder Water Timeseries Graph |
80 (3 Low) | n/m | n/m | 6 (1 Low) | 11 (1 Low) *2 | 18/05/2025 23:00:00 |
| Middlesbrough Timeseries Graph |
88 (3 Low) | 5 (1 Low) | 1 (1 Low) | 7 (1 Low) | 24 (2 Low) *1 | 18/05/2025 23:00:00 |
| Newcastle Centre Timeseries Graph |
84 (3 Low) | 9 (1 Low) | n/m | 9 (1 Low) | 24 (2 Low) *1 | 18/05/2025 23:00:00 |
| Newcastle Cradlewell Roadside Timeseries Graph |
n/m | 4 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Stockton-on-Tees A1305 Roadside Timeseries Graph |
n/m | 11 (1 Low) | n/m | n/a | n/m | 18/05/2025 23:00:00 |
| Stockton-on-Tees Eaglescliffe Timeseries Graph |
n/m | 2 (1 Low) | n/m | 10 (1 Low) | 25 (2 Low) *1 | 18/05/2025 23:00:00 |
| Sunderland Silksworth Timeseries Graph |
89 (3 Low) | 2 (1 Low) | n/m | 10 (1 Low) | 20 (2 Low) *2 | 18/05/2025 23:00:00 |
| Sunderland Wessington Way Timeseries Graph |
n/m | 1 (1 Low) | n/m | 10 (1 Low) | n/m | 18/05/2025 23:00:00 |
North East Scotland
| Latest measured levels based on data provided by the 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 |
94 (3 Low) | 3 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) *2 | 18/05/2025 23:00:00 |
| Aberdeen Wellington Road Timeseries Graph |
n/m | 24 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Dundee Mains Loan Timeseries Graph |
n/m | 1 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Perth Glasgow Road Timeseries Graph |
n/m | 5 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
North Wales
| Latest measured levels based on data provided by the 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 |
96 (3 Low) | 4 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Wrexham Timeseries Graph |
n/m | 10 (1 Low) | 3 (1 Low) | 10 (1 Low) | 16 (1 Low) *2 | 18/05/2025 23:00:00 |
North West & Merseyside
| Latest measured levels based on data provided by the 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 | 10 (1 Low) | n/m | 18/05/2025 23:00:00 |
| Blackburn Accrington Road Timeseries Graph |
n/m | 5 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Blackburn Audley Park Timeseries Graph |
86 (3 Low) | n/m | n/m | 8 (1 Low) | 14 (1 Low) *2 | 18/05/2025 23:00:00 |
| Blackpool Marton Timeseries Graph |
86 (3 Low) | 7 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 18/05/2025 23:00:00 |
| Blackpool Whitegate Drive Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 18/05/2025 23:00:00 |
| Bury Whitefield Roadside Timeseries Graph |
n/m | 4 (1 Low) | n/m | n/m | 18 (2 Low) *1 | 18/05/2025 23:00:00 |
| Carlisle Morton A595 Timeseries Graph |
n/m | 3 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) *1 | 18/05/2025 23:00:00 |
| Crewe Coppenhall Timeseries Graph |
92 (3 Low) | 8 (1 Low) | n/m | 11 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Glazebury Timeseries Graph |
81 (3 Low) | 6 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) *2 | 18/05/2025 23:00:00 |
| Liverpool Speke Timeseries Graph |
92 (3 Low) | 7 (1 Low) | 1 (1 Low) | 12 (2 Low) | 23 (2 Low) *1 | 18/05/2025 23:00:00 |
| Liverpool Thirlmere Park Timeseries Graph |
90 (3 Low) | n/m | n/m | 10 (1 Low) | 16 (1 Low) *2 | 18/05/2025 23:00:00 |
| Manchester Piccadilly Timeseries Graph |
83 (3 Low) | 14 (1 Low) | 1 (1 Low) | 10 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Manchester Sharston Timeseries Graph |
77 (3 Low) | 6 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) *2 | 18/05/2025 23:00:00 |
| Middlewich St Michael's Way Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | n/m | 18/05/2025 23:00:00 |
| Preston Timeseries Graph |
86 (3 Low) | 6 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 18/05/2025 23:00:00 |
| Salford Eccles Timeseries Graph |
88 (3 Low) | 16 (1 Low) | n/m | 11 (1 Low) | 19 (2 Low) *2 | 18/05/2025 23:00:00 |
| Shaw Crompton Way Timeseries Graph |
n/m | 13 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| St Helens Linkway Timeseries Graph |
n/m | 11 (1 Low) | n/m | n/m | 15 (1 Low) *1 | 18/05/2025 23:00:00 |
| Tameside A635 Manchester Road Timeseries Graph |
n/m | n/m | n/m | 8 (1 Low) | n/m | 18/05/2025 23:00:00 |
| Warrington Timeseries Graph |
n/m | 11 (1 Low) | n/m | 9 (1 Low) | 18 (2 Low) *1 | 18/05/2025 23:00:00 |
| Widnes Milton Road Timeseries Graph |
n/m | 19 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Wigan Centre Timeseries Graph |
85 (3 Low) | 6 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Wirral Tranmere Timeseries Graph |
87 (3 Low) | 6 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 18/05/2025 23:00:00 |
Northern Ireland
| Latest measured levels based on data provided by the 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 | 9 (1 Low) | n/m | n/m | 13 (1 Low) *1 | 18/05/2025 23:00:00 |
| Ballymena Antrim Road Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Ballymena Ballykeel Timeseries Graph |
n/m | n/a | n/a | n/m | n/m | 27/02/2025 02:00:00 |
| Belfast Centre Timeseries Graph |
72 (3 Low) | 7 (1 Low) | 1 (1 Low) | 7 (1 Low) | 15 (1 Low) *2 | 18/05/2025 23:00:00 |
| Belfast Stockman's Lane Timeseries Graph |
n/m | 7 (1 Low) | n/m | n/m | 25 (2 Low) *1 | 18/05/2025 23:00:00 |
| Derry Rosemount Timeseries Graph |
103 (4 Moderate) | 5 (1 Low) | 1 (1 Low) | 2 (1 Low) | 9 (1 Low) *1 | 18/05/2025 23:00:00 |
| Lough Navar Timeseries Graph |
88 (3 Low) | n/m | n/m | 4 (1 Low) | 6 (1 Low) *2 | 18/05/2025 23:00:00 |
Scottish Borders
| Latest measured levels based on data provided by the 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 | 3 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Eskdalemuir Timeseries Graph |
87 (3 Low) | 1 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Peebles Timeseries Graph |
90 (3 Low) | 1 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
South East
| Latest measured levels based on data provided by the 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 |
| Brighton Preston Park Timeseries Graph |
77 (3 Low) | 17 (1 Low) | n/m | 11 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Chatham Roadside Timeseries Graph |
n/m | 7 (1 Low) | n/m | 8 (1 Low) | 24 (2 Low) *1 | 18/05/2025 23:00:00 |
| Chilbolton Observatory Timeseries Graph |
93 (3 Low) | 11 (1 Low) | 1 (1 Low) | 11 (1 Low) | 14 (1 Low) *2 | 18/05/2025 23:00:00 |
| Eastbourne Timeseries Graph |
80 (3 Low) | 9 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) *2 | 18/05/2025 23:00:00 |
| Farnborough Cherrywood Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 18 (2 Low) *2 | 18/05/2025 23:00:00 |
| Horley Timeseries Graph |
n/m | 14 (1 Low) | n/m | 11 (1 Low) | 16 (1 Low) *2 | 18/05/2025 23:00:00 |
| Lullington Heath Timeseries Graph |
84 (3 Low) | 4 (1 Low) | 1 (1 Low) | 10 (1 Low) | 15 (1 Low) *2 | 18/05/2025 23:00:00 |
| Maidstone Upper Stone Street Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Milton Keynes Civic Centre Timeseries Graph |
89 (3 Low) | n/m | n/m | 14 (2 Low) | 21 (2 Low) *2 | 18/05/2025 23:00:00 |
| Oxford Centre Roadside Timeseries Graph |
n/m | 6 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Oxford St Ebbes Timeseries Graph |
89 (3 Low) | 2 (1 Low) | n/m | 11 (1 Low) | 15 (1 Low) *2 | 18/05/2025 23:00:00 |
| Portsmouth Timeseries Graph |
90 (3 Low) | 10 (1 Low) | n/m | 13 (2 Low) | 18 (2 Low) *2 | 18/05/2025 23:00:00 |
| Portsmouth Anglesea Road Timeseries Graph |
n/m | 23 (1 Low) | n/m | 14 (2 Low) | 19 (2 Low) *2 | 18/05/2025 23:00:00 |
| Reading London Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | 21 (2 Low) *1 | 18/05/2025 23:00:00 |
| Reading New Town Timeseries Graph |
85 (3 Low) | 4 (1 Low) | n/m | 12 (2 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Reading Rose Kiln Lane Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | n/m | 18/05/2025 23:00:00 |
| Rochester Stoke Timeseries Graph |
95 (3 Low) | 4 (1 Low) | 1 (1 Low) | 11 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Slough Windmill Bath Road Timeseries Graph |
n/m | n/m | n/m | 14 (2 Low) | 25 (2 Low) *2 | 18/05/2025 23:00:00 |
| Southampton A33 Timeseries Graph |
n/m | 44 (1 Low) | n/m | 12 (2 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Southampton Centre Timeseries Graph |
78 (3 Low) | 24 (1 Low) | 5 (1 Low) | 13 (2 Low) | 18 (2 Low) *2 | 18/05/2025 23:00:00 |
| Storrington Roadside Timeseries Graph |
n/m | 3 (1 Low) | n/m | 11 (1 Low) | 16 (1 Low) *2 | 18/05/2025 23:00:00 |
| Worthing A27 Roadside Timeseries Graph |
n/m | 11 (1 Low) | n/m | 13 (2 Low) | n/m | 18/05/2025 23:00:00 |
| Worthing East Ten Acres Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | 18 (2 Low) *2 | 18/05/2025 23:00:00 |
South Wales
| Latest measured levels based on data provided by the 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 |
97 (3 Low) | 5 (1 Low) | 1 (1 Low) | 10 (1 Low) | 20 (2 Low) *1 | 18/05/2025 23:00:00 |
| Cardiff Newport Road Timeseries Graph |
n/m | 17 (1 Low) | n/m | n/m | 22 (2 Low) *1 | 18/05/2025 23:00:00 |
| Chepstow A48 Timeseries Graph |
n/m | 11 (1 Low) | n/m | 11 (1 Low) | 19 (2 Low) *1 | 18/05/2025 23:00:00 |
| Cwmbran Crownbridge Timeseries Graph |
100 (3 Low) | 5 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Hafod-yr-ynys Hill Roadside Timeseries Graph |
n/m | n/a | n/m | n/m | n/m | 16/05/2025 04:00:00 |
| Narberth Timeseries Graph |
88 (3 Low) | 3 (1 Low) | 1 (1 Low) | 5 (1 Low) | 8 (1 Low) *2 | 18/05/2025 23:00:00 |
| Newport Timeseries Graph |
n/m | 13 (1 Low) | n/m | 11 (1 Low) | 16 (1 Low) *2 | 18/05/2025 23:00:00 |
| Port Talbot Margam Timeseries Graph |
106 (4 Moderate) | 4 (1 Low) | 2 (1 Low) | 8 (1 Low) | 19 (2 Low) *3 | 18/05/2025 23:00:00 |
| Swansea Roadside Timeseries Graph |
n/m | 24 (1 Low) | n/m | 12 (2 Low) | 23 (2 Low) *1 | 18/05/2025 23:00:00 |
South West
| Latest measured levels based on data provided by the 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 | 10 (1 Low) | 15 (1 Low) *2 | 18/05/2025 23:00:00 |
| Bath A4 Roadside Timeseries Graph |
n/m | 16 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Bournemouth Timeseries Graph |
96 (3 Low) | 4 (1 Low) | n/m | n/a | n/m | 18/05/2025 23:00:00 |
| Bristol St Paul's Timeseries Graph |
93 (3 Low) | 10 (1 Low) | n/m | 10 (1 Low) | 21 (2 Low) *1 | 18/05/2025 23:00:00 |
| Bristol Temple Way Timeseries Graph |
n/m | 12 (1 Low) | n/m | 12 (2 Low) | 20 (2 Low) *2 | 18/05/2025 23:00:00 |
| Charlton Mackrell Timeseries Graph |
97 (3 Low) | 8 (1 Low) | n/m | 9 (1 Low) | 14 (1 Low) *2 | 18/05/2025 23:00:00 |
| Cheltenham A40 Gloucester Road Timeseries Graph |
n/m | n/m | n/m | 12 (2 Low) | n/m | 18/05/2025 23:00:00 |
| Christchurch Barrack Road Timeseries Graph |
n/m | 3 (1 Low) | n/m | 13 (2 Low) | n/m | 18/05/2025 23:00:00 |
| Exeter Roadside Timeseries Graph |
87 (3 Low) | 12 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Gloucester Tredworth Timeseries Graph |
n/m | n/m | n/m | 18 (2 Low) | 25 (2 Low) *2 | 18/05/2025 23:00:00 |
| Honiton Timeseries Graph |
91 (3 Low) | 7 (1 Low) | n/m | 11 (1 Low) | 14 (1 Low) *2 | 18/05/2025 23:00:00 |
| Plymouth Centre Timeseries Graph |
102 (4 Moderate) | 28 (1 Low) | n/m | 10 (1 Low) | 15 (1 Low) *2 | 18/05/2025 23:00:00 |
| Plymouth Tavistock Road Timeseries Graph |
n/m | 27 (1 Low) | n/m | n/m | n/m | 18/05/2025 22:00:00 |
| Saltash Callington Road Timeseries Graph |
n/m | n/m | n/m | 4 (1 Low) | 16 (1 Low) *1 | 18/05/2025 23:00:00 |
| Swindon Walcot Timeseries Graph |
87 (3 Low) | 5 (1 Low) | n/m | 11 (1 Low) | 16 (1 Low) *2 | 18/05/2025 23:00:00 |
| Yarner Wood Timeseries Graph |
95 (3 Low) | 15 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) *2 | 18/05/2025 23:00:00 |
West Ireland
| Latest measured levels based on data provided by the 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 |
100 (3 Low) | n/m | n/m | n/m | n/m | 18/05/2025 23:00:00 |
West Midlands
| Latest measured levels based on data provided by the 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 |
| Birmingham A4540 Roadside Timeseries Graph |
86 (3 Low) | 15 (1 Low) | n/m | 11 (1 Low) | 18 (2 Low) *2 | 18/05/2025 23:00:00 |
| Birmingham Hall Green Timeseries Graph |
95 (3 Low) | 10 (1 Low) | n/m | 11 (1 Low) | 19 (2 Low) *2 | 18/05/2025 23:00:00 |
| Birmingham Ladywood Timeseries Graph |
85 (3 Low) | 10 (1 Low) | 1 (1 Low) | 12 (2 Low) | 19 (2 Low) *2 | 18/05/2025 23:00:00 |
| Burton-on-Trent Horninglow Timeseries Graph |
83 (3 Low) | 10 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) *2 | 18/05/2025 23:00:00 |
| Cannock A5190 Roadside Timeseries Graph |
n/m | 6 (1 Low) | n/m | 10 (1 Low) | n/m | 18/05/2025 23:00:00 |
| Coventry Allesley Timeseries Graph |
84 (3 Low) | 4 (1 Low) | n/m | 12 (2 Low) | 19 (2 Low) *2 | 18/05/2025 23:00:00 |
| Coventry Binley Road Timeseries Graph |
n/m | 11 (1 Low) | n/m | 13 (2 Low) | 20 (2 Low) *2 | 18/05/2025 23:00:00 |
| Leamington Spa Timeseries Graph |
94 (3 Low) | 5 (1 Low) | n/m | 13 (2 Low) | 20 (2 Low) *2 | 18/05/2025 23:00:00 |
| Leamington Spa Rugby Road Timeseries Graph |
n/m | 3 (1 Low) | n/m | 12 (2 Low) | 18 (2 Low) *2 | 18/05/2025 23:00:00 |
| Leominster Timeseries Graph |
99 (3 Low) | 4 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Oldbury Birmingham Road Timeseries Graph |
n/m | 11 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Shrewsbury Underdale Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Stoke-on-Trent A50 Roadside Timeseries Graph |
n/m | n/a | n/m | 11 (1 Low) | 18 (2 Low) *2 | 18/05/2025 23:00:00 |
| Stoke-on-Trent Centre Timeseries Graph |
85 (3 Low) | 6 (1 Low) | n/m | 10 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Telford Hollinswood Timeseries Graph |
97 (3 Low) | 6 (1 Low) | n/m | 11 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Walsall Woodlands Timeseries Graph |
93 (3 Low) | 8 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| West Bromwich Kenrick Park Timeseries Graph |
87 (3 Low) | 11 (1 Low) | n/m | n/m | n/m | 18/05/2025 23:00:00 |
| Worcester Tolladine Timeseries Graph |
n/m | n/m | n/m | 13 (2 Low) | 19 (2 Low) *2 | 18/05/2025 23:00:00 |
Yorkshire & Humberside
| Latest measured levels based on data provided by the 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 |
84 (3 Low) | 10 (1 Low) | n/a | 10 (1 Low) | 20 (2 Low) *2 | 18/05/2025 23:00:00 |
| Bradford Mayo Avenue Timeseries Graph |
n/m | 43 (1 Low) | n/m | n/m | n/m | 18/05/2025 22:00:00 |
| Bradford Shipley Airedale Road Timeseries Graph |
n/m | n/m | n/m | 10 (1 Low) | 18 (2 Low) *2 | 18/05/2025 23:00:00 |
| Dewsbury Ashworth Grange Timeseries Graph |
83 (3 Low) | 11 (1 Low) | n/m | 11 (1 Low) | 19 (2 Low) *2 | 18/05/2025 23:00:00 |
| Doncaster A630 Cleveland Street Timeseries Graph |
n/m | 22 (1 Low) | n/m | 11 (1 Low) | n/m | 18/05/2025 23:00:00 |
| Harrogate Woodlands Timeseries Graph |
n/m | n/m | n/m | 9 (1 Low) | 15 (1 Low) *2 | 18/05/2025 23:00:00 |
| High Muffles Timeseries Graph |
84 (3 Low) | 1 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) *2 | 18/05/2025 23:00:00 |
| Hull Freetown Timeseries Graph |
86 (3 Low) | 4 (1 Low) | 4 (1 Low) | 11 (1 Low) | 21 (2 Low) *2 | 18/05/2025 23:00:00 |
| Hull Holderness Road Timeseries Graph |
n/m | 3 (1 Low) | n/m | 12 (2 Low) | 21 (2 Low) *2 | 18/05/2025 23:00:00 |
| Immingham Woodlands Avenue Timeseries Graph |
86 (3 Low) | 7 (1 Low) | n/m | 11 (1 Low) | 20 (2 Low) *2 | 18/05/2025 23:00:00 |
| Leeds Centre Timeseries Graph |
88 (3 Low) | 4 (1 Low) | 2 (1 Low) | 10 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Leeds Headingley Kerbside Timeseries Graph |
n/m | 21 (1 Low) | n/m | 12 (2 Low) | 22 (2 Low) *1 | 18/05/2025 23:00:00 |
| Rotherham East Dene Timeseries Graph |
n/m | n/m | n/m | 11 (1 Low) | 17 (2 Low) *2 | 18/05/2025 23:00:00 |
| Scunthorpe Town Timeseries Graph |
n/m | 3 (1 Low) | 1 (1 Low) | 10 (1 Low) | 24 (2 Low) *1 | 18/05/2025 23:00:00 |
| Sheffield Barnsley Road Timeseries Graph |
n/m | 21 (1 Low) | n/m | 10 (1 Low) | n/m | 18/05/2025 23:00:00 |
| Sheffield Devonshire Green Timeseries Graph |
85 (3 Low) | 7 (1 Low) | n/m | 11 (1 Low) | 19 (2 Low) *2 | 18/05/2025 23:00:00 |
| Sheffield Tinsley Timeseries Graph |
78 (3 Low) | 6 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) *2 | 18/05/2025 23:00:00 |
| York Bootham Timeseries Graph |
74 (3 Low) | 6 (1 Low) | n/m | 12 (2 Low) | 23 (2 Low) *1 | 18/05/2025 23:00:00 |
| York Fishergate Timeseries Graph |
n/m | 11 (1 Low) | n/m | 8 (1 Low) | 26 (2 Low) *1 | 18/05/2025 23:00:00 |
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