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.

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Pollutant levels recorded for the hour up to 4pm Fri 22nd Sep 2023

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Auchencorth Moss Timeseries Graph	53 (2 Low)	n/m	n/m	1 (1 Low)	2 (1 Low) ^*2	22/09/2023 16:00:00
Bush Estate Timeseries Graph	49 (2 Low)	2 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Dumbarton Roadside Timeseries Graph	n/m	14 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Edinburgh Nicolson Street Timeseries Graph	n/m	65 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Edinburgh St Leonards Timeseries Graph	31 (1 Low)	12 (1 Low)	3 (1 Low)	2 (1 Low)	5 (1 Low) ^*2	22/09/2023 16:00:00
Glasgow Great Western Road Timeseries Graph	n/m	12 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Glasgow High Street Timeseries Graph	n/m	25 (1 Low)	n/m	3 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
Glasgow Kerbside Timeseries Graph	n/m	34 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Glasgow Townhead Timeseries Graph	42 (2 Low)	9 (1 Low)	n/m	2 (1 Low)	5 (1 Low) ^*2	22/09/2023 16:00:00
Grangemouth Timeseries Graph	n/m	10 (1 Low)	1 (1 Low)	3 (1 Low)	3 (1 Low) ^*1	22/09/2023 16:00:00
Grangemouth Moray Timeseries Graph	n/m	9 (1 Low)	n/m	n/m	n/m	22/09/2023 15:00:00
Greenock A8 Roadside Timeseries Graph	n/m	31 (1 Low)	n/m	2 (1 Low)	5 (1 Low) ^*2	22/09/2023 16:00:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Chesterfield Loundsley Green Timeseries Graph	50 (2 Low)	3 (1 Low)	n/m	3 (1 Low)	6 (1 Low) ^*2	22/09/2023 16:00:00
Chesterfield Roadside Timeseries Graph	n/m	13 (1 Low)	n/m	3 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
Derby St Alkmund's Way Timeseries Graph	n/m	19 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Ladybower Timeseries Graph	55 (2 Low)	2 (1 Low)	1 (1 Low)	n/m	n/m	22/09/2023 16:00:00
Leicester A594 Roadside Timeseries Graph	n/m	31 (1 Low)	n/m	n/m	12 (1 Low) ^*1	22/09/2023 16:00:00
Leicester University Timeseries Graph	32 (1 Low)	28 (1 Low)	n/m	4 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
Lincoln Canwick Road Timeseries Graph	n/m	20 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Northampton Spring Park Timeseries Graph	45 (2 Low)	5 (1 Low)	n/m	4 (1 Low)	n/m	22/09/2023 16:00:00
Nottingham Centre Timeseries Graph	39 (2 Low)	17 (1 Low)	2 (1 Low)	10 (1 Low)	13 (1 Low) ^*2	22/09/2023 16:00:00
Nottingham Western Boulevard Timeseries Graph	n/m	41 (1 Low)	n/m	n/m	13 (1 Low) ^*1	22/09/2023 16:00:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Borehamwood Meadow Park Timeseries Graph	n/m	4 (1 Low)	n/m	4 (1 Low)	6 (1 Low) ^*2	22/09/2023 16:00:00
Cambridge Roadside Timeseries Graph	n/m	19 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Luton A505 Roadside Timeseries Graph	n/m	36 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Norwich Lakenfields Timeseries Graph	55 (2 Low)	6 (1 Low)	n/m	5 (1 Low)	9 (1 Low) ^*2	22/09/2023 16:00:00
Sandy Roadside Timeseries Graph	n/m	15 (1 Low)	n/m	4 (1 Low)	10 (1 Low) ^*1	22/09/2023 16:00:00
Sibton Timeseries Graph	54 (2 Low)	n/m	n/m	n/m	n/m	22/09/2023 16:00:00
Southend-on-Sea Timeseries Graph	39 (2 Low)	11 (1 Low)	n/m	3 (1 Low)	6 (1 Low) ^*2	22/09/2023 16:00:00
St Osyth Timeseries Graph	54 (2 Low)	3 (1 Low)	n/m	4 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
Stanford-le-Hope Roadside Timeseries Graph	n/m	17 (1 Low)	n/m	7 (1 Low)	11 (1 Low) ^*1	22/09/2023 16:00:00
Thurrock Timeseries Graph	37 (2 Low)	15 (1 Low)	2 (1 Low)	4 (1 Low)	8 (1 Low) ^*2	22/09/2023 16:00:00
Weybourne Timeseries Graph	53 (2 Low)	n/m	n/m	4 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
Wicken Fen Timeseries Graph	47 (2 Low)	2 (1 Low)	n/a	3 (1 Low)	6 (1 Low) ^*2	22/09/2023 16:00:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Camden Kerbside Timeseries Graph	n/m	21 (1 Low)	n/m	6 (1 Low)	9 (1 Low) ^*1	22/09/2023 16:00:00
Ealing Horn Lane Timeseries Graph	n/m	n/m	n/m	n/m	32 (2 Low) ^*1	22/09/2023 16:00:00
Haringey Roadside Timeseries Graph	n/m	21 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
London Bexley Timeseries Graph	n/m	5 (1 Low)	n/m	3 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
London Bloomsbury Timeseries Graph	46 (2 Low)	11 (1 Low)	3 (1 Low)	4 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
London Eltham Timeseries Graph	n/a	n/a	n/m	n/a	n/a	04/07/2023 17:00:00
London Haringey Priory Park South Timeseries Graph	34 (2 Low)	4 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
London Harlington Timeseries Graph	43 (2 Low)	10 (1 Low)	n/m	5 (1 Low)	9 (1 Low) ^*2	22/09/2023 16:00:00
London Hillingdon Timeseries Graph	32 (1 Low)	25 (1 Low)	n/m	5 (1 Low)	10 (1 Low) ^*2	22/09/2023 16:00:00
London Honor Oak Park Timeseries Graph	n/m	n/m	n/m	3 (1 Low)	6 (1 Low) ^*2	22/09/2023 16:00:00
London Marylebone Road Timeseries Graph	17 (1 Low)	72 (2 Low)	n/a	9 (1 Low)	12 (1 Low) ^*1	22/09/2023 16:00:00
London N. Kensington Timeseries Graph	42 (2 Low)	11 (1 Low)	1 (1 Low)	4 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
London Teddington Bushy Park Timeseries Graph	n/m	n/m	n/m	4 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
London Westminster Timeseries Graph	41 (2 Low)	9 (1 Low)	n/m	5 (1 Low)	n/m	22/09/2023 16:00:00
Southwark A2 Old Kent Road Timeseries Graph	n/m	9 (1 Low)	n/m	n/m	16 (1 Low) ^*1	22/09/2023 16:00:00
Tower Hamlets Roadside Timeseries Graph	n/m	15 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Fort William Timeseries Graph	53 (2 Low)	4 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Inverness Timeseries Graph	n/m	14 (1 Low)	n/m	1 (1 Low)	3 (1 Low) ^*2	22/09/2023 16:00:00
Lerwick Timeseries Graph	67 (3 Low)	n/m	n/m	n/m	n/m	22/09/2023 16:00:00
Strathvaich Timeseries Graph	66 (2 Low)	n/m	n/m	n/m	n/m	22/09/2023 16:00:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Billingham Timeseries Graph	n/m	7 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Hartlepool St Abbs Walk Timeseries Graph	46 (2 Low)	2 (1 Low)	n/m	3 (1 Low)	6 (1 Low) ^*2	22/09/2023 16:00:00
Middlesbrough Timeseries Graph	57 (2 Low)	8 (1 Low)	2 (1 Low)	1 (1 Low)	7 (1 Low) ^*1	22/09/2023 16:00:00
Newcastle Centre Timeseries Graph	37 (2 Low)	15 (1 Low)	n/m	4 (1 Low)	12 (1 Low) ^*1	22/09/2023 16:00:00
Newcastle Cradlewell Roadside Timeseries Graph	n/m	27 (1 Low)	n/m	n/m	8 (1 Low) ^*1	22/09/2023 16:00:00
Stockton-on-Tees A1305 Roadside Timeseries Graph	n/m	19 (1 Low)	n/m	2 (1 Low)	n/m	22/09/2023 16:00:00
Stockton-on-Tees Eaglescliffe Timeseries Graph	n/m	21 (1 Low)	n/m	5 (1 Low)	6 (1 Low) ^*1	22/09/2023 16:00:00
Sunderland Silksworth Timeseries Graph	45 (2 Low)	6 (1 Low)	n/m	2 (1 Low)	4 (1 Low) ^*2	22/09/2023 16:00:00
Sunderland Wessington Way Timeseries Graph	n/m	13 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Aberdeen Erroll Park Timeseries Graph	39 (2 Low)	2 (1 Low)	n/m	1 (1 Low)	3 (1 Low) ^*2	22/09/2023 16:00:00
Aberdeen Union Street Roadside Timeseries Graph	n/m	27 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Aberdeen Wellington Road Timeseries Graph	n/m	28 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Dundee Mains Loan Timeseries Graph	n/m	3 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Aston Hill Timeseries Graph	58 (2 Low)	1 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Wrexham Timeseries Graph	n/m	6 (1 Low)	2 (1 Low)	2 (1 Low)	5 (1 Low) ^*2	22/09/2023 16:00:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Birkenhead Borough Road Timeseries Graph	n/m	10 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Blackburn Accrington Road Timeseries Graph	n/m	22 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Blackburn Audley Park Timeseries Graph	40 (2 Low)	n/m	n/m	3 (1 Low)	5 (1 Low) ^*2	22/09/2023 16:00:00
Blackpool Marton Timeseries Graph	59 (2 Low)	3 (1 Low)	n/m	3 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
Bury Whitefield Roadside Timeseries Graph	n/m	20 (1 Low)	n/m	n/m	11 (1 Low) ^*1	22/09/2023 16:00:00
Carlisle Morton A595 Timeseries Graph	n/m	9 (1 Low)	n/m	5 (1 Low)	8 (1 Low) ^*1	22/09/2023 16:00:00
Crewe Coppenhall Timeseries Graph	46 (2 Low)	6 (1 Low)	n/m	3 (1 Low)	6 (1 Low) ^*2	22/09/2023 16:00:00
Glazebury Timeseries Graph	43 (2 Low)	2 (1 Low)	n/m	3 (1 Low)	6 (1 Low) ^*2	22/09/2023 16:00:00
Liverpool Speke Timeseries Graph	n/a	n/a	n/a	3 (1 Low)	8 (1 Low) ^*1	22/09/2023 16:00:00
Manchester Piccadilly Timeseries Graph	27 (1 Low)	22 (1 Low)	1 (1 Low)	6 (1 Low)	13 (1 Low) ^*2	22/09/2023 16:00:00
Manchester Sharston Timeseries Graph	49 (2 Low)	14 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Preston Timeseries Graph	40 (2 Low)	15 (1 Low)	n/m	3 (1 Low)	6 (1 Low) ^*2	22/09/2023 16:00:00
Salford Eccles Timeseries Graph	36 (2 Low)	16 (1 Low)	n/m	6 (1 Low)	10 (1 Low) ^*2	22/09/2023 16:00:00
Shaw Crompton Way Timeseries Graph	n/m	33 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
St Helens Linkway Timeseries Graph	n/m	17 (1 Low)	n/m	n/m	12 (1 Low) ^*1	22/09/2023 16:00:00
Warrington Timeseries Graph	n/m	4 (1 Low)	n/m	3 (1 Low)	9 (1 Low) ^*1	22/09/2023 16:00:00
Widnes Milton Road Timeseries Graph	n/m	17 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Wigan Centre Timeseries Graph	46 (2 Low)	3 (1 Low)	n/m	6 (1 Low)	9 (1 Low) ^*2	22/09/2023 16:00:00
Wirral Tranmere Timeseries Graph	50 (2 Low)	7 (1 Low)	n/m	3 (1 Low)	5 (1 Low) ^*2	22/09/2023 16:00:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Armagh Roadside Timeseries Graph	n/m	22 (1 Low)	n/m	n/m	16 (1 Low) ^*1	22/09/2023 16:00:00
Ballymena Antrim Road Timeseries Graph	n/m	16 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Ballymena Ballykeel Timeseries Graph	n/m	2 (1 Low)	1 (1 Low)	n/m	n/m	22/09/2023 16:00:00
Belfast Centre Timeseries Graph	56 (2 Low)	7 (1 Low)	1 (1 Low)	4 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
Belfast Stockman's Lane Timeseries Graph	n/m	35 (1 Low)	n/m	n/m	15 (1 Low) ^*1	22/09/2023 16:00:00
Derry Rosemount Timeseries Graph	67 (3 Low)	3 (1 Low)	1 (1 Low)	6 (1 Low)	9 (1 Low) ^*1	22/09/2023 16:00:00
Lough Navar Timeseries Graph	64 (2 Low)	n/m	n/m	3 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Dumfries Timeseries Graph	n/m	19 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Eskdalemuir Timeseries Graph	49 (2 Low)	1 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Peebles Timeseries Graph	50 (2 Low)	3 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Brighton Preston Park Timeseries Graph	42 (2 Low)	7 (1 Low)	n/m	2 (1 Low)	n/m	22/09/2023 16:00:00
Canterbury Timeseries Graph	28 (1 Low)	11 (1 Low)	n/m	3 (1 Low)	6 (1 Low) ^*2	22/09/2023 16:00:00
Chatham Roadside Timeseries Graph	n/m	25 (1 Low)	n/m	2 (1 Low)	15 (1 Low) ^*1	22/09/2023 16:00:00
Chilbolton Observatory Timeseries Graph	52 (2 Low)	3 (1 Low)	1 (1 Low)	2 (1 Low)	5 (1 Low) ^*2	22/09/2023 16:00:00
Eastbourne Timeseries Graph	n/m	n/a	n/m	n/a	n/a	27/07/2023 01:00:00
Horley Timeseries Graph	n/m	n/a	n/m	n/m	n/m	07/09/2023 10:00:00
Lullington Heath Timeseries Graph	50 (2 Low)	2 (1 Low)	2 (1 Low)	2 (1 Low)	4 (1 Low) ^*2	22/09/2023 16:00:00
Milton Keynes Civic Centre Timeseries Graph	50 (2 Low)	n/m	n/m	3 (1 Low)	5 (1 Low) ^*2	22/09/2023 16:00:00
Oxford Centre Roadside Timeseries Graph	n/m	28 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Oxford St Ebbes Timeseries Graph	36 (2 Low)	3 (1 Low)	n/m	2 (1 Low)	4 (1 Low) ^*2	22/09/2023 16:00:00
Portsmouth Timeseries Graph	47 (2 Low)	6 (1 Low)	n/m	3 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
Portsmouth Anglesea Road Timeseries Graph	n/m	18 (1 Low)	n/m	n/m	12 (1 Low) ^*1	22/09/2023 16:00:00
Reading London Road Timeseries Graph	n/m	30 (1 Low)	n/m	n/m	16 (1 Low) ^*1	22/09/2023 16:00:00
Reading New Town Timeseries Graph	33 (1 Low)	11 (1 Low)	n/m	3 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
Rochester Stoke Timeseries Graph	46 (2 Low)	7 (1 Low)	2 (1 Low)	4 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
Southampton A33 Timeseries Graph	n/m	23 (1 Low)	n/m	n/m	12 (1 Low) ^*1	22/09/2023 16:00:00
Southampton Centre Timeseries Graph	36 (2 Low)	28 (1 Low)	2 (1 Low)	3 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
Storrington Roadside Timeseries Graph	n/m	25 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Worthing A27 Roadside Timeseries Graph	n/m	27 (1 Low)	n/m	3 (1 Low)	n/m	22/09/2023 16:00:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Cardiff Centre Timeseries Graph	43 (2 Low)	10 (1 Low)	n/a	7 (1 Low)	7 (1 Low) ^*1	22/09/2023 16:00:00
Cardiff Newport Road Timeseries Graph	n/m	8 (1 Low)	n/m	n/m	7 (1 Low) ^*1	22/09/2023 16:00:00
Chepstow A48 Timeseries Graph	n/m	42 (1 Low)	n/m	5 (1 Low)	20 (2 Low) ^*1	22/09/2023 16:00:00
Cwmbran Crownbridge Timeseries Graph	44 (2 Low)	2 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Hafod-yr-ynys Roadside Timeseries Graph	n/m	n/a	n/m	n/m	n/m	15/09/2023 07:00:00
Narberth Timeseries Graph	51 (2 Low)	1 (1 Low)	1 (1 Low)	2 (1 Low)	5 (1 Low) ^*2	22/09/2023 16:00:00
Newport Timeseries Graph	n/m	7 (1 Low)	n/m	3 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
Port Talbot Margam Timeseries Graph	39 (2 Low)	24 (1 Low)	1 (1 Low)	4 (1 Low)	12 (1 Low) ^*3	22/09/2023 16:00:00
Swansea Roadside Timeseries Graph	n/m	n/a	n/m	n/a	n/a	13/09/2023 09:00:00

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 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)	9 (1 Low) ^*1	22/09/2023 16:00:00
Bath A4 Roadside Timeseries Graph	n/m	23 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Bournemouth Timeseries Graph	53 (2 Low)	4 (1 Low)	n/m	5 (1 Low)	n/m	22/09/2023 16:00:00
Bristol St Paul's Timeseries Graph	51 (2 Low)	7 (1 Low)	n/m	5 (1 Low)	11 (1 Low) ^*1	22/09/2023 16:00:00
Bristol Temple Way Timeseries Graph	n/m	7 (1 Low)	n/m	n/m	11 (1 Low) ^*1	22/09/2023 16:00:00
Charlton Mackrell Timeseries Graph	51 (2 Low)	2 (1 Low)	n/m	2 (1 Low)	5 (1 Low) ^*2	22/09/2023 16:00:00
Christchurch Barrack Road Timeseries Graph	n/m	5 (1 Low)	n/m	3 (1 Low)	n/m	22/09/2023 16:00:00
Exeter Roadside Timeseries Graph	42 (2 Low)	13 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Honiton Timeseries Graph	41 (2 Low)	5 (1 Low)	n/m	2 (1 Low)	5 (1 Low) ^*2	22/09/2023 16:00:00
Plymouth Centre Timeseries Graph	55 (2 Low)	7 (1 Low)	n/m	3 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
Plymouth Tavistock Road Timeseries Graph	n/m	19 (1 Low)	n/m	n/m	n/m	22/09/2023 15:00:00
Saltash Callington Road Timeseries Graph	n/m	n/m	n/m	1 (1 Low)	6 (1 Low) ^*1	22/09/2023 16:00:00
Swindon Walcot Timeseries Graph	47 (2 Low)	6 (1 Low)	n/m	3 (1 Low)	6 (1 Low) ^*2	22/09/2023 16:00:00
Yarner Wood Timeseries Graph	61 (2 Low)	0 (1 Low)	n/m	2 (1 Low)	4 (1 Low) ^*2	22/09/2023 16:00:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Mace Head Timeseries Graph	78 (3 Low)	n/m	n/m	n/m	n/m	22/09/2023 16:00:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Birmingham A4540 Roadside Timeseries Graph	36 (2 Low)	41 (1 Low)	n/m	4 (1 Low)	11 (1 Low) ^*2	22/09/2023 16:00:00
Birmingham Ladywood Timeseries Graph	53 (2 Low)	17 (1 Low)	2 (1 Low)	2 (1 Low)	5 (1 Low) ^*2	22/09/2023 16:00:00
Burton-on-Trent Horninglow Timeseries Graph	41 (2 Low)	6 (1 Low)	n/m	3 (1 Low)	6 (1 Low) ^*2	22/09/2023 16:00:00
Cannock A5190 Roadside Timeseries Graph	n/m	13 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Coventry Allesley Timeseries Graph	42 (2 Low)	10 (1 Low)	n/m	4 (1 Low)	7 (1 Low) ^*2	22/09/2023 16:00:00
Coventry Binley Road Timeseries Graph	n/m	27 (1 Low)	n/m	n/m	11 (1 Low) ^*1	22/09/2023 16:00:00
Leamington Spa Timeseries Graph	50 (2 Low)	7 (1 Low)	n/m	3 (1 Low)	6 (1 Low) ^*2	22/09/2023 16:00:00
Leamington Spa Rugby Road Timeseries Graph	n/m	7 (1 Low)	n/m	3 (1 Low)	5 (1 Low) ^*2	22/09/2023 16:00:00
Leominster Timeseries Graph	53 (2 Low)	2 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Oldbury Birmingham Road Timeseries Graph	n/m	35 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
Stoke-on-Trent A50 Roadside Timeseries Graph	n/m	34 (1 Low)	n/m	n/m	16 (1 Low) ^*1	22/09/2023 16:00:00
Stoke-on-Trent Centre Timeseries Graph	39 (2 Low)	11 (1 Low)	n/m	5 (1 Low)	9 (1 Low) ^*2	22/09/2023 16:00:00
Telford Hollinswood Timeseries Graph	51 (2 Low)	9 (1 Low)	n/m	2 (1 Low)	4 (1 Low) ^*2	22/09/2023 16:00:00
Walsall Woodlands Timeseries Graph	48 (2 Low)	7 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
West Bromwich Kenrick Park Timeseries Graph	42 (2 Low)	14 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Barnsley Gawber Timeseries Graph	51 (2 Low)	6 (1 Low)	2 (1 Low)	4 (1 Low)	6 (1 Low) ^*2	22/09/2023 16:00:00
Bradford Mayo Avenue Timeseries Graph	n/m	21 (1 Low)	n/m	n/m	n/m	22/09/2023 15:00:00
Dewsbury Ashworth Grove Timeseries Graph	43 (2 Low)	7 (1 Low)	n/m	6 (1 Low)	9 (1 Low) ^*2	22/09/2023 16:00:00
Doncaster A630 Cleveland Street Timeseries Graph	n/m	18 (1 Low)	n/m	n/m	n/m	22/09/2023 16:00:00
High Muffles Timeseries Graph	55 (2 Low)	3 (1 Low)	n/m	2 (1 Low)	4 (1 Low) ^*2	22/09/2023 16:00:00
Hull Freetown Timeseries Graph	43 (2 Low)	19 (1 Low)	3 (1 Low)	5 (1 Low)	10 (1 Low) ^*2	22/09/2023 16:00:00
Hull Holderness Road Timeseries Graph	n/m	35 (1 Low)	n/m	n/m	13 (1 Low) ^*1	22/09/2023 16:00:00
Immingham Woodlands Avenue Timeseries Graph	46 (2 Low)	6 (1 Low)	n/m	4 (1 Low)	8 (1 Low) ^*2	22/09/2023 16:00:00
Leeds Centre Timeseries Graph	39 (2 Low)	2 (1 Low)	2 (1 Low)	5 (1 Low)	9 (1 Low) ^*2	22/09/2023 16:00:00
Leeds Headingley Kerbside Timeseries Graph	n/m	21 (1 Low)	n/m	6 (1 Low)	14 (1 Low) ^*1	22/09/2023 16:00:00
Scunthorpe Town Timeseries Graph	n/m	12 (1 Low)	1 (1 Low)	n/m	9 (1 Low) ^*1	22/09/2023 16:00:00
Sheffield Barnsley Road Timeseries Graph	n/m	28 (1 Low)	n/m	5 (1 Low)	n/m	22/09/2023 16:00:00
Sheffield Devonshire Green Timeseries Graph	45 (2 Low)	8 (1 Low)	n/m	3 (1 Low)	6 (1 Low) ^*2	22/09/2023 16:00:00
Sheffield Tinsley Timeseries Graph	40 (2 Low)	14 (1 Low)	n/m	4 (1 Low)	11 (1 Low) ^*2	22/09/2023 16:00:00
York Bootham Timeseries Graph	37 (2 Low)	2 (1 Low)	n/m	6 (1 Low)	12 (1 Low) ^*1	22/09/2023 16:00:00
York Fishergate Timeseries Graph	n/m	11 (1 Low)	n/m	7 (1 Low)	13 (1 Low) ^*1	22/09/2023 16:00:00

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

UK AIR

Air Information Resource