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.

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Maximum pollutant levels displayed on UK-AIR for the 24 hour period up to 2am Fri 13th Dec 2024

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Auchencorth Moss Timeseries Graph	55 (2 Low)	n/m	n/m	6 (1 Low)	7 (1 Low) ^*2	12/12/2024 24:00
Bush Estate Timeseries Graph	42 (2 Low)	13 (1 Low)	n/m	n/m	n/m	12/12/2024 15:00
Dumbarton Roadside Timeseries Graph	n/m	46 (1 Low)	n/m	n/m	n/m	12/12/2024 21:00
Edinburgh Nicolson Street Timeseries Graph	n/m	49 (1 Low)	n/m	n/m	n/m	12/12/2024 21:00
Edinburgh St Leonards Timeseries Graph	47 (2 Low)	45 (1 Low)	2 (1 Low)	6 (1 Low)	8 (1 Low) ^*2	12/12/2024 10:00
Glasgow Great Western Road Timeseries Graph	n/m	61 (1 Low)	n/m	n/m	n/m	12/12/2024 15:00
Glasgow High Street Timeseries Graph	n/m	61 (1 Low)	n/m	12 (2 Low)	16 (1 Low) ^*2	13/12/2024 01:00
Glasgow Kerbside Timeseries Graph	n/m	86 (2 Low)	n/m	n/m	n/m	12/12/2024 16:00
Glasgow Townhead Timeseries Graph	18 (1 Low)	60 (1 Low)	n/m	12 (2 Low)	17 (2 Low) ^*2	13/12/2024 01:00
Grangemouth Timeseries Graph	n/m	42 (1 Low)	4 (1 Low)	14 (2 Low)	15 (1 Low) ^*1	12/12/2024 20:00
Grangemouth Moray Timeseries Graph	n/m	44 (1 Low)	n/m	n/m	n/m	12/12/2024 18:00
Greenock A8 Roadside Timeseries Graph	n/m	47 (1 Low)	n/m	12 (2 Low)	20 (2 Low) ^*2	12/12/2024 24:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Chesterfield Loundsley Green Timeseries Graph	66 (2 Low)	31 (1 Low)	n/m	7 (1 Low)	11 (1 Low) ^*2	12/12/2024 10:00
Chesterfield Roadside Timeseries Graph	n/m	42 (1 Low)	n/m	9 (1 Low)	11 (1 Low) ^*2	12/12/2024 24:00
Derby St Alkmund's Way Timeseries Graph	n/m	52 (1 Low)	n/m	7 (1 Low)	n/m	12/12/2024 24:00
Derby Stockbrook Park Timeseries Graph	46 (2 Low)	n/m	n/m	6 (1 Low)	8 (1 Low) ^*2	12/12/2024 24:00
Ladybower Timeseries Graph	64 (2 Low)	13 (1 Low)	3 (1 Low)	2 (1 Low)	2 (1 Low) ^*2	11/12/2024 23:15
Leicester A594 Roadside Timeseries Graph	n/m	44 (1 Low)	n/m	6 (1 Low)	8 (1 Low) ^*2	12/12/2024 24:00
Leicester University Timeseries Graph	53 (2 Low)	55 (1 Low)	n/m	5 (1 Low)	6 (1 Low) ^*2	12/12/2024 24:00
Lincoln Canwick Road Timeseries Graph	n/m	52 (1 Low)	n/m	n/m	n/m	12/12/2024 19:00
Mansfield Ladybrook Timeseries Graph	n/m	n/m	n/m	6 (1 Low)	7 (1 Low) ^*2	12/12/2024 24:00
Northampton Spring Park Timeseries Graph	60 (2 Low)	23 (1 Low)	n/m	8 (1 Low)	n/m	12/12/2024 24:00
Nottingham Kenmore Gardens Timeseries Graph	51 (2 Low)	30 (1 Low)	3 (1 Low)	5 (1 Low)	7 (1 Low) ^*2	12/12/2024 05:15
Nottingham Western Boulevard Timeseries Graph	n/m	47 (1 Low)	n/m	5 (1 Low)	6 (1 Low) ^*2	13/12/2024 01:00
Tallington Timeseries Graph	56 (2 Low)	n/m	n/m	4 (1 Low)	5 (1 Low) ^*2	13/12/2024 02:00
Toft Newton Timeseries Graph	56 (2 Low)	5 (1 Low)	n/m	3 (1 Low)	4 (1 Low) ^*2	12/12/2024 24:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Borehamwood Meadow Park Timeseries Graph	n/m	19 (1 Low)	n/m	4 (1 Low)	5 (1 Low) ^*2	13/12/2024 02:00
Cambridge Roadside Timeseries Graph	n/m	38 (1 Low)	n/m	n/m	n/m	12/12/2024 17:00
Luton A505 Roadside Timeseries Graph	n/m	67 (1 Low)	n/m	5 (1 Low)	n/m	13/12/2024 02:00
Norwich Lakenfields Timeseries Graph	48 (2 Low)	24 (1 Low)	n/m	n/a	n/a	10/12/2024 02:00
Peterborough Garton End Timeseries Graph	n/m	n/m	n/m	5 (1 Low)	6 (1 Low) ^*2	13/12/2024 02:00
Sandy Roadside Timeseries Graph	n/m	32 (1 Low)	n/m	2 (1 Low)	6 (1 Low) ^*1	12/12/2024 24:00
Sibton Timeseries Graph	61 (2 Low)	n/m	n/m	3 (1 Low)	4 (1 Low) ^*2	13/12/2024 02:00
Southend-on-Sea Timeseries Graph	56 (2 Low)	29 (1 Low)	n/m	10 (1 Low)	11 (1 Low) ^*2	13/12/2024 02:00
St Osyth Timeseries Graph	65 (2 Low)	14 (1 Low)	n/m	4 (1 Low)	5 (1 Low) ^*2	13/12/2024 02:00
Stanford-le-Hope Roadside Timeseries Graph	n/m	40 (1 Low)	n/m	13 (2 Low)	20 (2 Low) ^*1	13/12/2024 02:00
Thurrock Timeseries Graph	61 (2 Low)	46 (1 Low)	2 (1 Low)	9 (1 Low)	11 (1 Low) ^*2	12/12/2024 19:15
Weybourne Timeseries Graph	71 (3 Low)	n/m	n/m	3 (1 Low)	7 (1 Low) ^*2	13/12/2024 02:00
Wicken Fen Timeseries Graph	47 (2 Low)	13 (1 Low)	1 (1 Low)	4 (1 Low)	6 (1 Low) ^*2	12/12/2024 16:30

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Camden Kerbside Timeseries Graph	n/m	81 (2 Low)	n/m	10 (1 Low)	14 (1 Low) ^*1	13/12/2024 02:00
Ealing Horn Lane Timeseries Graph	n/m	n/m	n/m	n/m	13 (1 Low) ^*1	13/12/2024 02:00
Haringey Roadside Timeseries Graph	n/m	41 (1 Low)	n/m	n/m	n/m	12/12/2024 20:00
London Bexley Timeseries Graph	n/m	54 (1 Low)	n/m	5 (1 Low)	10 (1 Low) ^*2	12/12/2024 02:00
London Bloomsbury Timeseries Graph	49 (2 Low)	42 (1 Low)	n/a	7 (1 Low)	9 (1 Low) ^*2	11/11/2024 23:30
London Haringey Priory Park South Timeseries Graph	57 (2 Low)	30 (1 Low)	n/m	n/m	n/m	12/12/2024 03:00
London Harlington Timeseries Graph	64 (2 Low)	n/a	n/m	5 (1 Low)	6 (1 Low) ^*2	12/12/2024 22:00
London Hillingdon Timeseries Graph	59 (2 Low)	33 (1 Low)	n/m	6 (1 Low)	9 (1 Low) ^*2	13/12/2024 02:00
London Honor Oak Park Timeseries Graph	64 (2 Low)	n/m	n/m	8 (1 Low)	9 (1 Low) ^*2	13/12/2024 02:00
London Marylebone Road Timeseries Graph	56 (2 Low)	46 (1 Low)	2 (1 Low)	6 (1 Low)	10 (1 Low) ^*1	12/12/2024 23:15
London N. Kensington Timeseries Graph	67 (3 Low)	41 (1 Low)	140 (2 Low)	7 (1 Low)	9 (1 Low) ^*2	12/12/2024 17:45
London Teddington Bushy Park Timeseries Graph	n/m	n/m	n/m	8 (1 Low)	12 (1 Low) ^*2	13/12/2024 02:00
London Westminster Timeseries Graph	55 (2 Low)	48 (1 Low)	n/m	8 (1 Low)	n/m	13/12/2024 02:00
Southwark A2 Old Kent Road Timeseries Graph	n/m	67 (1 Low)	n/m	n/m	16 (1 Low) ^*1	12/12/2024 17:00
Tower Hamlets Roadside Timeseries Graph	n/m	46 (1 Low)	n/m	n/m	n/m	12/12/2024 17:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Fort William Timeseries Graph	17 (1 Low)	36 (1 Low)	n/m	n/m	n/m	12/12/2024 07:00
Inverness Timeseries Graph	n/m	37 (1 Low)	n/m	3 (1 Low)	5 (1 Low) ^*2	13/12/2024 02:00
Lerwick Timeseries Graph	79 (3 Low)	n/m	n/m	n/m	n/m	12/12/2024 03:00
Strathvaich Timeseries Graph	42 (2 Low)	n/m	n/m	n/m	n/m	13/12/2024 02:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Hartlepool St Abbs Walk Timeseries Graph	49 (2 Low)	51 (1 Low)	n/m	13 (2 Low)	20 (2 Low) ^*2	12/12/2024 24:00
Middlesbrough Timeseries Graph	22 (1 Low)	58 (1 Low)	6 (1 Low)	14 (2 Low)	24 (2 Low) ^*1	12/12/2024 18:00
Newcastle Centre Timeseries Graph	32 (1 Low)	50 (1 Low)	n/m	12 (2 Low)	19 (2 Low) ^*1	12/12/2024 24:00
Newcastle Cradlewell Roadside Timeseries Graph	n/m	87 (2 Low)	n/m	n/m	n/a	12/12/2024 15:00
Stockton-on-Tees A1305 Roadside Timeseries Graph	n/m	88 (2 Low)	n/m	23 (2 Low)	n/m	13/12/2024 02:00
Stockton-on-Tees Eaglescliffe Timeseries Graph	n/m	56 (1 Low)	n/m	14 (2 Low)	20 (2 Low) ^*1	13/12/2024 01:00
Sunderland Silksworth Timeseries Graph	37 (2 Low)	47 (1 Low)	n/m	12 (2 Low)	16 (1 Low) ^*2	12/12/2024 24:00
Sunderland Wessington Way Timeseries Graph	n/m	56 (1 Low)	n/m	12 (2 Low)	n/m	12/12/2024 24:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Aberdeen Erroll Park Timeseries Graph	23 (1 Low)	53 (1 Low)	n/m	9 (1 Low)	11 (1 Low) ^*2	12/12/2024 24:00
Aberdeen Union Street Roadside Timeseries Graph	n/m	61 (1 Low)	n/m	n/m	n/m	12/12/2024 15:00
Aberdeen Wellington Road Timeseries Graph	n/m	52 (1 Low)	n/m	n/m	n/m	12/12/2024 15:00
Dundee Mains Loan Timeseries Graph	n/m	34 (1 Low)	n/m	n/m	n/m	12/12/2024 09:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Aston Hill Timeseries Graph	65 (2 Low)	13 (1 Low)	n/m	n/m	n/m	12/12/2024 03:00
Wrexham Timeseries Graph	n/m	57 (1 Low)	6 (1 Low)	14 (2 Low)	17 (2 Low) ^*2	12/12/2024 18:30

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Birkenhead Borough Road Timeseries Graph	n/m	67 (1 Low)	n/m	16 (2 Low)	n/m	12/12/2024 24:00
Blackburn Accrington Road Timeseries Graph	n/m	36 (1 Low)	n/m	n/m	n/m	12/12/2024 20:00
Blackburn Audley Park Timeseries Graph	41 (2 Low)	n/m	n/m	13 (2 Low)	16 (1 Low) ^*2	13/12/2024 02:00
Blackpool Marton Timeseries Graph	42 (2 Low)	32 (1 Low)	n/m	10 (1 Low)	13 (1 Low) ^*2	12/12/2024 24:00
Blackpool Whitegate Drive Timeseries Graph	n/m	n/m	n/m	11 (1 Low)	n/m	12/12/2024 24:00
Bury Whitefield Roadside Timeseries Graph	n/m	57 (1 Low)	n/m	n/m	12 (1 Low) ^*1	12/12/2024 08:00
Carlisle Morton A595 Timeseries Graph	n/m	41 (1 Low)	n/m	12 (2 Low)	15 (1 Low) ^*1	12/12/2024 24:00
Crewe Coppenhall Timeseries Graph	53 (2 Low)	33 (1 Low)	n/m	11 (1 Low)	14 (1 Low) ^*2	12/12/2024 24:00
Glazebury Timeseries Graph	40 (2 Low)	40 (1 Low)	n/m	9 (1 Low)	12 (1 Low) ^*2	12/12/2024 24:00
Liverpool Speke Timeseries Graph	40 (2 Low)	53 (1 Low)	4 (1 Low)	14 (2 Low)	22 (2 Low) ^*1	12/12/2024 14:15
Manchester Piccadilly Timeseries Graph	37 (2 Low)	57 (1 Low)	3 (1 Low)	10 (1 Low)	16 (1 Low) ^*2	12/12/2024 09:30
Manchester Sharston Timeseries Graph	33 (1 Low)	54 (1 Low)	n/m	7 (1 Low)	9 (1 Low) ^*2	12/12/2024 24:00
Middlewich St Michael's Way Timeseries Graph	n/m	n/m	n/m	14 (2 Low)	n/m	12/12/2024 24:00
Preston Timeseries Graph	36 (2 Low)	54 (1 Low)	n/m	9 (1 Low)	12 (1 Low) ^*2	12/12/2024 24:00
Salford Eccles Timeseries Graph	33 (1 Low)	59 (1 Low)	n/m	9 (1 Low)	15 (1 Low) ^*2	12/12/2024 24:00
Shaw Crompton Way Timeseries Graph	n/m	40 (1 Low)	n/m	n/m	n/m	12/12/2024 11:00
St Helens Linkway Timeseries Graph	n/m	61 (1 Low)	n/m	n/m	13 (1 Low) ^*1	12/12/2024 16:00
Warrington Timeseries Graph	n/m	81 (2 Low)	n/m	9 (1 Low)	17 (2 Low) ^*1	12/12/2024 24:00
Widnes Milton Road Timeseries Graph	n/m	74 (2 Low)	n/m	n/m	n/m	12/12/2024 16:00
Wigan Centre Timeseries Graph	43 (2 Low)	45 (1 Low)	n/m	10 (1 Low)	14 (1 Low) ^*2	12/12/2024 24:00
Wirral Tranmere Timeseries Graph	48 (2 Low)	56 (1 Low)	n/m	16 (2 Low)	22 (2 Low) ^*2	13/12/2024 01:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Armagh Roadside Timeseries Graph	n/m	73 (2 Low)	n/m	n/m	28 (2 Low) ^*1	12/12/2024 18:00
Ballymena Antrim Road Timeseries Graph	n/m	64 (1 Low)	n/m	n/m	n/m	12/12/2024 18:00
Ballymena Ballykeel Timeseries Graph	n/m	n/a	3 (1 Low)	n/m	n/m	12/12/2024 17:30
Belfast Centre Timeseries Graph	25 (1 Low)	65 (1 Low)	4 (1 Low)	19 (2 Low)	27 (2 Low) ^*2	12/12/2024 22:00
Belfast Stockman's Lane Timeseries Graph	n/m	112 (2 Low)	n/m	n/m	26 (2 Low) ^*1	12/12/2024 12:00
Derry Rosemount Timeseries Graph	43 (2 Low)	44 (1 Low)	10 (1 Low)	21 (2 Low)	24 (2 Low) ^*1	12/12/2024 19:15
Lough Navar Timeseries Graph	33 (1 Low)	n/m	n/m	8 (1 Low)	9 (1 Low) ^*2	13/12/2024 02:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Dumfries Timeseries Graph	n/m	65 (1 Low)	n/m	n/m	n/m	12/12/2024 18:00
Eskdalemuir Timeseries Graph	46 (2 Low)	2 (1 Low)	n/m	n/m	n/m	12/12/2024 19:00
Peebles Timeseries Graph	22 (1 Low)	32 (1 Low)	n/m	n/m	n/m	12/12/2024 03:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Brighton Preston Park Timeseries Graph	50 (2 Low)	24 (1 Low)	n/m	13 (2 Low)	16 (1 Low) ^*2	13/12/2024 02:00
Chatham Roadside Timeseries Graph	n/m	58 (1 Low)	n/m	13 (2 Low)	20 (2 Low) ^*1	13/12/2024 02:00
Chilbolton Observatory Timeseries Graph	71 (3 Low)	15 (1 Low)	2 (1 Low)	6 (1 Low)	8 (1 Low) ^*2	12/12/2024 08:00
Eastbourne Timeseries Graph	56 (2 Low)	25 (1 Low)	n/m	16 (2 Low)	19 (2 Low) ^*2	13/12/2024 02:00
Horley Timeseries Graph	n/m	31 (1 Low)	n/m	12 (2 Low)	n/a	13/12/2024 02:00
Lullington Heath Timeseries Graph	65 (2 Low)	20 (1 Low)	1 (1 Low)	16 (2 Low)	18 (2 Low) ^*2	12/12/2024 22:45
Milton Keynes Civic Centre Timeseries Graph	60 (2 Low)	n/m	n/m	4 (1 Low)	5 (1 Low) ^*2	13/12/2024 02:00
Oxford Centre Roadside Timeseries Graph	n/m	45 (1 Low)	n/m	n/m	n/m	12/12/2024 20:00
Oxford St Ebbes Timeseries Graph	69 (3 Low)	23 (1 Low)	n/m	4 (1 Low)	5 (1 Low) ^*2	13/12/2024 02:00
Portsmouth Timeseries Graph	58 (2 Low)	44 (1 Low)	n/m	8 (1 Low)	12 (1 Low) ^*2	13/12/2024 02:00
Portsmouth Anglesea Road Timeseries Graph	n/m	32 (1 Low)	n/m	8 (1 Low)	10 (1 Low) ^*2	13/12/2024 02:00
Reading London Road Timeseries Graph	n/m	52 (1 Low)	n/m	n/m	10 (1 Low) ^*1	12/12/2024 16:00
Reading New Town Timeseries Graph	62 (2 Low)	28 (1 Low)	n/m	6 (1 Low)	7 (1 Low) ^*2	13/12/2024 02:00
Reading Rose Kiln Lane Timeseries Graph	n/m	n/m	n/m	6 (1 Low)	n/m	13/12/2024 02:00
Rochester Stoke Timeseries Graph	66 (2 Low)	26 (1 Low)	4 (1 Low)	13 (2 Low)	15 (1 Low) ^*2	13/12/2024 01:30
Southampton A33 Timeseries Graph	n/m	32 (1 Low)	n/m	n/m	n/a	12/12/2024 19:00
Southampton Centre Timeseries Graph	55 (2 Low)	38 (1 Low)	10 (1 Low)	7 (1 Low)	9 (1 Low) ^*2	12/12/2024 14:15
Storrington Roadside Timeseries Graph	n/m	60 (1 Low)	n/m	10 (1 Low)	15 (1 Low) ^*2	13/12/2024 02:00
Worthing A27 Roadside Timeseries Graph	n/m	37 (1 Low)	n/m	n/a	n/m	12/12/2024 24:00
Worthing East Ten Acres Timeseries Graph	n/m	n/m	n/m	13 (2 Low)	17 (2 Low) ^*2	13/12/2024 02:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Cardiff Centre Timeseries Graph	69 (3 Low)	33 (1 Low)	2 (1 Low)	7 (1 Low)	9 (1 Low) ^*1	12/12/2024 16:15
Cardiff Newport Road Timeseries Graph	n/m	49 (1 Low)	n/m	n/m	13 (1 Low) ^*1	12/12/2024 10:00
Chepstow A48 Timeseries Graph	n/m	50 (1 Low)	n/m	9 (1 Low)	12 (1 Low) ^*1	13/12/2024 01:00
Cwmbran Crownbridge Timeseries Graph	74 (3 Low)	17 (1 Low)	n/m	n/m	n/m	12/12/2024 06:00
Hafod-yr-ynys Hill Roadside Timeseries Graph	n/m	63 (1 Low)	n/m	n/m	n/m	12/12/2024 07:00
Narberth Timeseries Graph	68 (3 Low)	9 (1 Low)	1 (1 Low)	8 (1 Low)	10 (1 Low) ^*2	12/12/2024 22:00
Newport Timeseries Graph	n/m	27 (1 Low)	n/m	6 (1 Low)	9 (1 Low) ^*2	13/12/2024 02:00
Port Talbot Margam Timeseries Graph	67 (3 Low)	37 (1 Low)	n/a	5 (1 Low)	8 (1 Low) ^*3	11/12/2024 13:30
Swansea Roadside Timeseries Graph	n/m	50 (1 Low)	n/m	7 (1 Low)	17 (2 Low) ^*1	13/12/2024 02:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Barnstaple A39 Timeseries Graph	n/m	n/m	n/m	7 (1 Low)	11 (1 Low) ^*2	12/12/2024 24:00
Bath A4 Roadside Timeseries Graph	n/m	44 (1 Low)	n/m	n/m	n/m	12/12/2024 21:00
Bournemouth Timeseries Graph	64 (2 Low)	30 (1 Low)	n/m	9 (1 Low)	n/m	13/12/2024 02:00
Bristol St Paul's Timeseries Graph	66 (2 Low)	37 (1 Low)	n/m	8 (1 Low)	12 (1 Low) ^*1	13/12/2024 02:00
Bristol Temple Way Timeseries Graph	n/m	64 (1 Low)	n/m	9 (1 Low)	13 (1 Low) ^*2	13/12/2024 02:00
Charlton Mackrell Timeseries Graph	n/a	13 (1 Low)	n/m	7 (1 Low)	10 (1 Low) ^*2	13/12/2024 02:00
Christchurch Barrack Road Timeseries Graph	n/m	61 (1 Low)	n/m	10 (1 Low)	n/m	13/12/2024 02:00
Exeter Roadside Timeseries Graph	46 (2 Low)	75 (2 Low)	n/m	n/m	n/m	12/12/2024 08:00
Honiton Timeseries Graph	58 (2 Low)	18 (1 Low)	n/m	9 (1 Low)	12 (1 Low) ^*2	12/12/2024 24:00
Plymouth Centre Timeseries Graph	55 (2 Low)	28 (1 Low)	n/m	12 (2 Low)	18 (2 Low) ^*2	13/12/2024 02:00
Plymouth Tavistock Road Timeseries Graph	n/m	39 (1 Low)	n/m	n/m	n/m	12/12/2024 18:00
Saltash Callington Road Timeseries Graph	n/m	n/m	n/m	6 (1 Low)	17 (2 Low) ^*1	13/12/2024 02:00
Swindon Walcot Timeseries Graph	67 (3 Low)	31 (1 Low)	n/m	5 (1 Low)	6 (1 Low) ^*2	13/12/2024 02:00
Yarner Wood Timeseries Graph	62 (2 Low)	12 (1 Low)	n/m	8 (1 Low)	11 (1 Low) ^*2	13/12/2024 01:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Mace Head Timeseries Graph	56 (2 Low)	n/m	n/m	n/m	n/m	12/12/2024 14:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Birmingham A4540 Roadside Timeseries Graph	50 (2 Low)	49 (1 Low)	n/m	8 (1 Low)	10 (1 Low) ^*2	12/12/2024 24:00
Birmingham Hall Green Timeseries Graph	65 (2 Low)	48 (1 Low)	n/m	7 (1 Low)	10 (1 Low) ^*2	12/12/2024 24:00
Birmingham Ladywood Timeseries Graph	57 (2 Low)	42 (1 Low)	1 (1 Low)	7 (1 Low)	8 (1 Low) ^*2	12/12/2024 22:15
Burton-on-Trent Horninglow Timeseries Graph	50 (2 Low)	39 (1 Low)	n/m	7 (1 Low)	9 (1 Low) ^*2	12/12/2024 24:00
Cannock A5190 Roadside Timeseries Graph	n/m	52 (1 Low)	n/m	6 (1 Low)	n/m	12/12/2024 24:00
Coventry Allesley Timeseries Graph	62 (2 Low)	26 (1 Low)	n/m	6 (1 Low)	7 (1 Low) ^*2	12/12/2024 24:00
Coventry Binley Road Timeseries Graph	n/m	41 (1 Low)	n/m	6 (1 Low)	7 (1 Low) ^*2	12/12/2024 24:00
Leamington Spa Timeseries Graph	64 (2 Low)	40 (1 Low)	n/m	6 (1 Low)	7 (1 Low) ^*2	12/12/2024 24:00
Leamington Spa Rugby Road Timeseries Graph	n/m	35 (1 Low)	n/m	5 (1 Low)	7 (1 Low) ^*2	12/12/2024 24:00
Leominster Timeseries Graph	70 (3 Low)	25 (1 Low)	n/m	n/m	n/m	12/12/2024 03:00
Oldbury Birmingham Road Timeseries Graph	n/m	51 (1 Low)	n/m	n/m	n/m	12/12/2024 09:00
Shrewsbury Underdale Timeseries Graph	n/m	n/m	n/m	9 (1 Low)	11 (1 Low) ^*2	12/12/2024 24:00
Stoke-on-Trent A50 Roadside Timeseries Graph	n/m	45 (1 Low)	n/m	n/m	n/a	12/12/2024 10:00
Stoke-on-Trent Centre Timeseries Graph	49 (2 Low)	56 (1 Low)	n/m	8 (1 Low)	11 (1 Low) ^*2	12/12/2024 24:00
Telford Hollinswood Timeseries Graph	58 (2 Low)	40 (1 Low)	n/m	7 (1 Low)	9 (1 Low) ^*2	12/12/2024 24:00
Walsall Woodlands Timeseries Graph	59 (2 Low)	39 (1 Low)	n/m	n/m	n/m	12/12/2024 03:00
West Bromwich Kenrick Park Timeseries Graph	55 (2 Low)	40 (1 Low)	n/m	n/m	n/m	12/12/2024 02:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Barnsley Gawber Timeseries Graph	42 (2 Low)	29 (1 Low)	2 (1 Low)	10 (1 Low)	12 (1 Low) ^*2	12/12/2024 03:00
Bradford Mayo Avenue Timeseries Graph	n/m	75 (2 Low)	n/m	n/m	n/m	12/12/2024 17:00
Dewsbury Ashworth Grange Timeseries Graph	38 (2 Low)	56 (1 Low)	n/m	11 (1 Low)	14 (1 Low) ^*2	13/12/2024 02:00
Doncaster A630 Cleveland Street Timeseries Graph	n/m	63 (1 Low)	n/m	10 (1 Low)	n/m	13/12/2024 01:00
High Muffles Timeseries Graph	62 (2 Low)	4 (1 Low)	n/m	1 (1 Low)	1 (1 Low) ^*2	12/12/2024 24:00
Hull Freetown Timeseries Graph	53 (2 Low)	33 (1 Low)	4 (1 Low)	4 (1 Low)	6 (1 Low) ^*2	12/12/2024 08:00
Hull Holderness Road Timeseries Graph	n/m	30 (1 Low)	n/m	3 (1 Low)	4 (1 Low) ^*2	12/12/2024 24:00
Immingham Woodlands Avenue Timeseries Graph	40 (2 Low)	51 (1 Low)	n/m	2 (1 Low)	4 (1 Low) ^*2	12/12/2024 24:00
Leeds Centre Timeseries Graph	48 (2 Low)	42 (1 Low)	3 (1 Low)	10 (1 Low)	12 (1 Low) ^*2	12/12/2024 14:15
Leeds Headingley Kerbside Timeseries Graph	n/m	48 (1 Low)	n/m	11 (1 Low)	14 (1 Low) ^*1	12/12/2024 24:00
Rotherham East Dene Timeseries Graph	n/m	n/m	n/m	12 (2 Low)	14 (1 Low) ^*2	12/12/2024 24:00
Scunthorpe Town Timeseries Graph	n/m	20 (1 Low)	1 (1 Low)	n/m	9 (1 Low) ^*1	12/12/2024 08:00
Sheffield Barnsley Road Timeseries Graph	n/m	74 (2 Low)	n/m	9 (1 Low)	n/m	12/12/2024 24:00
Sheffield Devonshire Green Timeseries Graph	41 (2 Low)	48 (1 Low)	n/m	10 (1 Low)	12 (1 Low) ^*2	12/12/2024 24:00
Sheffield Tinsley Timeseries Graph	47 (2 Low)	39 (1 Low)	n/m	10 (1 Low)	12 (1 Low) ^*2	12/12/2024 24:00
York Bootham Timeseries Graph	64 (2 Low)	33 (1 Low)	n/m	10 (1 Low)	16 (1 Low) ^*1	12/12/2024 24:00
York Fishergate Timeseries Graph	n/m	54 (1 Low)	n/m	10 (1 Low)	22 (2 Low) ^*1	12/12/2024 24:00

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

UK AIR

Air Information Resource