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.

PM₁₀ data is from a FDMS PM₁₀ instrument type unless specified
View the legend
Maximum pollutant levels displayed on UK-AIR for the 24 hour period up to 3am Fri 27th Jan 2023

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	64 (2 Low)	n/m	n/m	2 (1 Low)	4 (1 Low) ^*2	27/01/2023 03:00
Bush Estate Timeseries Graph	71 (3 Low)	15 (1 Low)	n/m	n/m	n/m	26/01/2023 04:00
Dumbarton Roadside Timeseries Graph	n/m	80 (2 Low)	n/m	n/m	n/m	26/01/2023 17:00
Edinburgh Nicolson Street Timeseries Graph	n/m	68 (2 Low)	n/m	n/m	n/m	26/01/2023 10:00
Edinburgh St Leonards Timeseries Graph	51 (2 Low)	47 (1 Low)	2 (1 Low)	4 (1 Low)	10 (1 Low) ^*2	26/01/2023 11:45
Glasgow Great Western Road Timeseries Graph	n/m	83 (2 Low)	n/m	n/m	n/m	26/01/2023 18:00
Glasgow High Street Timeseries Graph	n/m	76 (2 Low)	n/m	7 (1 Low)	12 (1 Low) ^*2	27/01/2023 02:00
Glasgow Kerbside Timeseries Graph	n/m	107 (2 Low)	n/m	n/m	n/m	26/01/2023 19:00
Glasgow Townhead Timeseries Graph	42 (2 Low)	77 (2 Low)	n/m	7 (1 Low)	14 (1 Low) ^*2	27/01/2023 03:00
Grangemouth Timeseries Graph	n/m	n/a	n/a	4 (1 Low)	11 (1 Low) ^*1	21/01/2023 14:00
Grangemouth Moray Timeseries Graph	n/m	80 (2 Low)	n/m	n/m	n/m	26/01/2023 21:00
Greenock A8 Roadside Timeseries Graph	n/m	80 (2 Low)	n/m	4 (1 Low)	6 (1 Low) ^*2	26/01/2023 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	n/m	29 (1 Low)	n/m	4 (1 Low)	7 (1 Low) ^*2	27/01/2023 03:00
Chesterfield Roadside Timeseries Graph	n/m	25 (1 Low)	n/m	5 (1 Low)	8 (1 Low) ^*2	27/01/2023 03:00
Derby St Alkmund's Way Timeseries Graph	n/m	79 (2 Low)	n/m	n/m	n/m	26/01/2023 09:00
Ladybower Timeseries Graph	63 (2 Low)	9 (1 Low)	1 (1 Low)	n/m	n/m	26/01/2023 21:00
Leicester A594 Roadside Timeseries Graph	n/m	64 (1 Low)	n/m	n/m	21 (2 Low) ^*1	26/01/2023 23:00
Leicester University Timeseries Graph	38 (2 Low)	68 (2 Low)	n/m	5 (1 Low)	10 (1 Low) ^*2	27/01/2023 03:00
Lincoln Canwick Road Timeseries Graph	n/m	55 (1 Low)	n/m	n/m	n/m	26/01/2023 16:00
Northampton Spring Park Timeseries Graph	66 (2 Low)	18 (1 Low)	n/m	10 (1 Low)	n/m	27/01/2023 03:00
Nottingham Centre Timeseries Graph	46 (2 Low)	39 (1 Low)	2 (1 Low)	16 (2 Low)	22 (2 Low) ^*2	26/01/2023 23:15
Nottingham Western Boulevard Timeseries Graph	n/m	67 (1 Low)	n/m	n/m	22 (2 Low) ^*1	26/01/2023 09:00

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	12 (1 Low)	n/m	5 (1 Low)	9 (1 Low) ^*2	26/01/2023 24:00
Cambridge Roadside Timeseries Graph	n/m	30 (1 Low)	n/m	n/m	n/m	26/01/2023 08:00
Luton A505 Roadside Timeseries Graph	n/m	63 (1 Low)	n/m	n/m	n/m	26/01/2023 08:00
Norwich Lakenfields Timeseries Graph	n/a	n/a	n/m	n/a	n/a	26/01/2023 24:00
Sandy Roadside Timeseries Graph	n/m	34 (1 Low)	n/m	n/a	n/a	25/01/2023 02:00
Sibton Timeseries Graph	71 (3 Low)	n/m	n/m	n/m	n/m	26/01/2023 21:00
Southend-on-Sea Timeseries Graph	62 (2 Low)	19 (1 Low)	n/m	6 (1 Low)	10 (1 Low) ^*2	26/01/2023 24:00
St Osyth Timeseries Graph	70 (3 Low)	7 (1 Low)	n/m	6 (1 Low)	10 (1 Low) ^*2	26/01/2023 24:00
Stanford-le-Hope Roadside Timeseries Graph	n/m	35 (1 Low)	n/m	8 (1 Low)	12 (1 Low) ^*1	27/01/2023 02:00
Thurrock Timeseries Graph	60 (2 Low)	35 (1 Low)	2 (1 Low)	6 (1 Low)	10 (1 Low) ^*2	26/01/2023 19:30
Weybourne Timeseries Graph	80 (3 Low)	n/m	n/m	13 (2 Low)	25 (2 Low) ^*2	26/01/2023 24:00
Wicken Fen Timeseries Graph	65 (2 Low)	7 (1 Low)	1 (1 Low)	6 (1 Low)	9 (1 Low) ^*2	26/01/2023 14:45

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 PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Camden Kerbside Timeseries Graph	n/m	103 (2 Low)	n/m	7 (1 Low)	16 (1 Low) ^*1	26/01/2023 24:00
Ealing Horn Lane Timeseries Graph	n/m	n/m	n/m	n/m	15 (1 Low) ^*1	26/01/2023 24:00
Haringey Roadside Timeseries Graph	n/m	40 (1 Low)	n/m	n/m	n/m	26/01/2023 20:00
London Bexley Timeseries Graph	n/m	34 (1 Low)	n/m	7 (1 Low)	13 (1 Low) ^*2	27/01/2023 01:00
London Bloomsbury Timeseries Graph	38 (2 Low)	52 (1 Low)	5 (1 Low)	22 (2 Low)	27 (2 Low) ^*2	25/01/2023 21:15
London Eltham Timeseries Graph	58 (2 Low)	13 (1 Low)	n/m	6 (1 Low)	9 (1 Low) ^*2	26/01/2023 24:00
London Haringey Priory Park South Timeseries Graph	n/a	16 (1 Low)	n/m	n/m	n/m	15/01/2023 15:00
London Harlington Timeseries Graph	56 (2 Low)	25 (1 Low)	n/m	5 (1 Low)	9 (1 Low) ^*2	26/01/2023 24:00
London Hillingdon Timeseries Graph	56 (2 Low)	23 (1 Low)	n/m	5 (1 Low)	9 (1 Low) ^*2	26/01/2023 24:00
London Honor Oak Park Timeseries Graph	n/m	n/m	n/m	9 (1 Low)	11 (1 Low) ^*2	27/01/2023 01:00
London Marylebone Road Timeseries Graph	49 (2 Low)	54 (1 Low)	4 (1 Low)	11 (1 Low)	11 (1 Low) ^*1	26/01/2023 18:00
London N. Kensington Timeseries Graph	53 (2 Low)	26 (1 Low)	2 (1 Low)	6 (1 Low)	10 (1 Low) ^*2	26/01/2023 14:15
London Teddington Bushy Park Timeseries Graph	n/m	n/m	n/m	6 (1 Low)	11 (1 Low) ^*2	26/01/2023 24:00
London Westminster Timeseries Graph	n/m	68 (2 Low)	n/m	7 (1 Low)	n/m	27/01/2023 01:00
Southwark A2 Old Kent Road Timeseries Graph	n/m	89 (2 Low)	n/m	n/m	6 (1 Low) ^*1	26/01/2023 11:00
Tower Hamlets Roadside Timeseries Graph	n/m	39 (1 Low)	n/m	n/m	n/m	26/01/2023 11:00

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	42 (2 Low)	43 (1 Low)	n/m	n/m	n/m	26/01/2023 04:00
Inverness Timeseries Graph	n/m	90 (2 Low)	n/m	6 (1 Low)	15 (1 Low) ^*2	26/01/2023 24:00
Lerwick Timeseries Graph	76 (3 Low)	n/m	n/m	n/m	n/m	26/01/2023 03:00
Strathvaich Timeseries Graph	81 (3 Low)	n/m	n/m	n/m	n/m	26/01/2023 03:00

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
Billingham Timeseries Graph	n/m	26 (1 Low)	n/m	n/m	n/m	26/01/2023 07:00
Hartlepool St Abbs Walk Timeseries Graph	n/m	20 (1 Low)	n/m	n/a	n/a	26/01/2023 24:00
Middlesbrough Timeseries Graph	45 (2 Low)	31 (1 Low)	2 (1 Low)	2 (1 Low)	13 (1 Low) ^*1	26/01/2023 12:30
Newcastle Centre Timeseries Graph	61 (2 Low)	29 (1 Low)	n/m	3 (1 Low)	12 (1 Low) ^*1	26/01/2023 24:00
Newcastle Cradlewell Roadside Timeseries Graph	n/m	40 (1 Low)	n/m	n/m	3 (1 Low) ^*1	25/01/2023 18:00
Stockton-on-Tees A1305 Roadside Timeseries Graph	n/m	41 (1 Low)	n/m	4 (1 Low)	n/m	26/01/2023 24:00
Stockton-on-Tees Eaglescliffe Timeseries Graph	n/m	48 (1 Low)	n/m	6 (1 Low)	10 (1 Low) ^*1	26/01/2023 24:00
Sunderland Silksworth Timeseries Graph	71 (3 Low)	24 (1 Low)	n/m	4 (1 Low)	8 (1 Low) ^*2	26/01/2023 24:00
Sunderland Wessington Way Timeseries Graph	n/m	29 (1 Low)	n/m	n/m	n/m	26/01/2023 09:00

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	69 (3 Low)	50 (1 Low)	n/m	4 (1 Low)	8 (1 Low) ^*2	26/01/2023 24:00
Aberdeen Union Street Roadside Timeseries Graph	n/m	65 (1 Low)	n/m	n/m	n/m	26/01/2023 18:00
Aberdeen Wellington Road Timeseries Graph	n/m	57 (1 Low)	n/m	n/m	n/m	26/01/2023 15:00
Dundee Mains Loan Timeseries Graph	n/m	42 (1 Low)	n/m	n/m	n/m	26/01/2023 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	61 (2 Low)	6 (1 Low)	n/m	n/m	n/m	26/01/2023 04:00
Wrexham Timeseries Graph	n/m	46 (1 Low)	2 (1 Low)	5 (1 Low)	10 (1 Low) ^*2	26/01/2023 08:30

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	65 (1 Low)	n/m	n/m	n/m	26/01/2023 08:00
Blackburn Accrington Road Timeseries Graph	n/m	72 (2 Low)	n/m	n/m	n/m	26/01/2023 09:00
Blackpool Marton Timeseries Graph	57 (2 Low)	60 (1 Low)	n/m	4 (1 Low)	7 (1 Low) ^*2	26/01/2023 24:00
Bury Whitefield Roadside Timeseries Graph	n/m	56 (1 Low)	n/m	n/m	18 (2 Low) ^*1	26/01/2023 09:00
Carlisle Morton A595 Timeseries Graph	n/m	46 (1 Low)	n/m	9 (1 Low)	16 (1 Low) ^*1	26/01/2023 24:00
Crewe Coppenhall Timeseries Graph	n/m	53 (1 Low)	n/m	7 (1 Low)	10 (1 Low) ^*2	26/01/2023 24:00
Glazebury Timeseries Graph	47 (2 Low)	28 (1 Low)	n/m	6 (1 Low)	8 (1 Low) ^*2	26/01/2023 24:00
Liverpool Speke Timeseries Graph	65 (2 Low)	50 (1 Low)	2 (1 Low)	3 (1 Low)	13 (1 Low) ^*1	26/01/2023 11:45
Manchester Piccadilly Timeseries Graph	21 (1 Low)	68 (2 Low)	7 (1 Low)	10 (1 Low)	19 (2 Low) ^*2	26/01/2023 07:00
Manchester Sharston Timeseries Graph	33 (1 Low)	55 (1 Low)	n/m	n/m	n/m	26/01/2023 18:00
Preston Timeseries Graph	40 (2 Low)	65 (1 Low)	n/m	6 (1 Low)	11 (1 Low) ^*2	26/01/2023 24:00
Salford Eccles Timeseries Graph	n/m	75 (2 Low)	n/m	8 (1 Low)	14 (1 Low) ^*2	26/01/2023 24:00
Shaw Crompton Way Timeseries Graph	n/m	70 (2 Low)	n/m	n/m	n/m	26/01/2023 19:00
St Helens Linkway Timeseries Graph	n/m	70 (2 Low)	n/m	n/m	21 (2 Low) ^*1	26/01/2023 20:00
Warrington Timeseries Graph	n/m	n/a	n/m	n/a	n/a	24/01/2023 24:00
Widnes Milton Road Timeseries Graph	n/m	58 (1 Low)	n/m	n/m	n/m	26/01/2023 21:00
Wigan Centre Timeseries Graph	46 (2 Low)	51 (1 Low)	n/m	8 (1 Low)	11 (1 Low) ^*2	26/01/2023 24:00
Wirral Tranmere Timeseries Graph	62 (2 Low)	43 (1 Low)	n/m	6 (1 Low)	11 (1 Low) ^*2	26/01/2023 24:00

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	93 (2 Low)	n/m	n/m	23 (2 Low) ^*1	26/01/2023 10:00
Ballymena Antrim Road Timeseries Graph	n/m	78 (2 Low)	n/m	n/m	n/m	26/01/2023 10:00
Ballymena Ballykeel Timeseries Graph	n/m	62 (1 Low)	2 (1 Low)	n/m	n/m	26/01/2023 08:30
Belfast Centre Timeseries Graph	77 (3 Low)	64 (1 Low)	3 (1 Low)	9 (1 Low)	20 (2 Low) ^*2	26/01/2023 10:45
Belfast Stockman's Lane Timeseries Graph	n/m	97 (2 Low)	n/m	n/m	20 (2 Low) ^*1	26/01/2023 19:00
Derry Rosemount Timeseries Graph	80 (3 Low)	57 (1 Low)	23 (1 Low)	15 (2 Low)	18 (2 Low) ^*1	26/01/2023 21:30
Lough Navar Timeseries Graph	60 (2 Low)	n/m	n/m	4 (1 Low)	9 (1 Low) ^*2	26/01/2023 24:00

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	75 (2 Low)	n/m	n/m	n/m	26/01/2023 11:00
Eskdalemuir Timeseries Graph	79 (3 Low)	4 (1 Low)	n/m	n/m	n/m	26/01/2023 03:00
Peebles Timeseries Graph	61 (2 Low)	27 (1 Low)	n/m	n/m	n/m	26/01/2023 19:00

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	56 (2 Low)	19 (1 Low)	n/m	8 (1 Low)	n/m	26/01/2023 24:00
Canterbury Timeseries Graph	70 (3 Low)	14 (1 Low)	n/m	7 (1 Low)	13 (1 Low) ^*2	26/01/2023 24:00
Chatham Roadside Timeseries Graph	n/m	33 (1 Low)	n/m	n/a	n/a	23/01/2023 24:00
Chilbolton Observatory Timeseries Graph	58 (2 Low)	20 (1 Low)	n/a	6 (1 Low)	9 (1 Low) ^*2	22/01/2023 19:30
Eastbourne Timeseries Graph	n/m	8 (1 Low)	n/m	5 (1 Low)	8 (1 Low) ^*2	26/01/2023 24:00
Horley Timeseries Graph	n/m	26 (1 Low)	n/m	n/m	n/m	26/01/2023 10:00
Lullington Heath Timeseries Graph	66 (2 Low)	10 (1 Low)	6 (1 Low)	5 (1 Low)	8 (1 Low) ^*2	26/01/2023 16:45
Oxford Centre Roadside Timeseries Graph	n/m	62 (1 Low)	n/m	n/m	n/m	26/01/2023 17:00
Oxford St Ebbes Timeseries Graph	n/m	41 (1 Low)	n/m	6 (1 Low)	9 (1 Low) ^*2	26/01/2023 24:00
Portsmouth Timeseries Graph	56 (2 Low)	35 (1 Low)	n/m	6 (1 Low)	10 (1 Low) ^*2	26/01/2023 24:00
Portsmouth Anglesea Road Timeseries Graph	n/m	56 (1 Low)	n/m	n/m	16 (1 Low) ^*1	26/01/2023 18:00
Reading London Road Timeseries Graph	n/m	53 (1 Low)	n/m	n/m	14 (1 Low) ^*1	25/01/2023 20:00
Reading New Town Timeseries Graph	53 (2 Low)	27 (1 Low)	n/m	6 (1 Low)	12 (1 Low) ^*1	26/01/2023 24:00
Rochester Stoke Timeseries Graph	70 (3 Low)	14 (1 Low)	2 (1 Low)	7 (1 Low)	11 (1 Low) ^*2	27/01/2023 01:30
Southampton A33 Timeseries Graph	n/m	76 (2 Low)	n/m	n/m	10 (1 Low) ^*1	26/01/2023 09:00
Southampton Centre Timeseries Graph	57 (2 Low)	35 (1 Low)	2 (1 Low)	7 (1 Low)	11 (1 Low) ^*2	26/01/2023 14:00
Storrington Roadside Timeseries Graph	n/m	59 (1 Low)	n/m	n/m	n/m	26/01/2023 08:00
Worthing A27 Roadside Timeseries Graph	n/m	n/a	n/m	n/a	n/m	04/01/2023 06:00

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	56 (2 Low)	59 (1 Low)	3 (1 Low)	7 (1 Low)	15 (1 Low) ^*1	26/01/2023 03:45
Cardiff Newport Road Timeseries Graph	n/m	82 (2 Low)	n/m	n/m	21 (2 Low) ^*1	26/01/2023 09:00
Chepstow A48 Timeseries Graph	n/m	47 (1 Low)	n/m	8 (1 Low)	21 (2 Low) ^*1	26/01/2023 24:00
Cwmbran Crownbridge Timeseries Graph	67 (3 Low)	12 (1 Low)	n/m	n/m	n/m	26/01/2023 04:00
Hafod-yr-ynys Roadside Timeseries Graph	n/m	151 (3 Low)	n/m	n/m	n/m	26/01/2023 08:00
Narberth Timeseries Graph	74 (3 Low)	14 (1 Low)	1 (1 Low)	4 (1 Low)	8 (1 Low) ^*2	26/01/2023 12:15
Newport Timeseries Graph	n/m	44 (1 Low)	n/m	6 (1 Low)	17 (2 Low) ^*2	26/01/2023 24:00
Port Talbot Margam Timeseries Graph	61 (2 Low)	56 (1 Low)	2 (1 Low)	4 (1 Low)	11 (1 Low) ^*3	26/01/2023 09:15
Swansea Roadside Timeseries Graph	n/m	84 (2 Low)	n/m	15 (2 Low)	17 (2 Low) ^*1	26/01/2023 24:00

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	12 (2 Low)	21 (2 Low) ^*1	26/01/2023 24:00
Bath A4 Roadside Timeseries Graph	n/m	71 (2 Low)	n/m	n/m	n/m	25/01/2023 18:00
Bournemouth Timeseries Graph	55 (2 Low)	20 (1 Low)	n/m	9 (1 Low)	n/m	27/01/2023 01:00
Bristol St Paul's Timeseries Graph	48 (2 Low)	59 (1 Low)	n/m	8 (1 Low)	17 (2 Low) ^*1	27/01/2023 02:00
Bristol Temple Way Timeseries Graph	n/m	67 (1 Low)	n/m	n/m	20 (2 Low) ^*1	26/01/2023 07:00
Charlton Mackrell Timeseries Graph	67 (3 Low)	16 (1 Low)	n/m	6 (1 Low)	9 (1 Low) ^*2	26/01/2023 24:00
Christchurch Barrack Road Timeseries Graph	n/m	36 (1 Low)	n/m	9 (1 Low)	n/m	26/01/2023 24:00
Exeter Roadside Timeseries Graph	53 (2 Low)	57 (1 Low)	n/m	n/m	n/m	26/01/2023 07:00
Honiton Timeseries Graph	n/m	22 (1 Low)	n/m	6 (1 Low)	9 (1 Low) ^*2	26/01/2023 24:00
Plymouth Centre Timeseries Graph	49 (2 Low)	43 (1 Low)	n/m	7 (1 Low)	12 (1 Low) ^*2	27/01/2023 02:00
Plymouth Tavistock Road Timeseries Graph	n/m	49 (1 Low)	n/m	n/m	n/m	26/01/2023 21:00
Saltash Callington Road Timeseries Graph	n/m	n/m	n/m	3 (1 Low)	12 (1 Low) ^*1	27/01/2023 03:00
Swindon Walcot Timeseries Graph	n/m	54 (1 Low)	n/m	7 (1 Low)	11 (1 Low) ^*2	26/01/2023 24:00
Yarner Wood Timeseries Graph	71 (3 Low)	5 (1 Low)	n/m	4 (1 Low)	6 (1 Low) ^*2	26/01/2023 24:00

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	83 (3 Low)	n/m	n/m	n/m	n/m	26/01/2023 20:00

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	38 (2 Low)	70 (2 Low)	n/m	9 (1 Low)	14 (1 Low) ^*2	26/01/2023 24:00
Birmingham Acocks Green Timeseries Graph	n/a	n/a	n/m	n/a	n/a	01/10/2021 02:00
Birmingham Ladywood Timeseries Graph	39 (2 Low)	54 (1 Low)	5 (1 Low)	8 (1 Low)	12 (1 Low) ^*2	26/01/2023 23:00
Burton-on-Trent Horninglow Timeseries Graph	n/m	31 (1 Low)	n/m	9 (1 Low)	12 (1 Low) ^*2	25/01/2023 24:00
Cannock A5190 Roadside Timeseries Graph	n/m	41 (1 Low)	n/m	n/m	n/m	26/01/2023 19:00
Coventry Allesley Timeseries Graph	50 (2 Low)	26 (1 Low)	n/m	11 (1 Low)	15 (1 Low) ^*2	25/01/2023 24:00
Coventry Binley Road Timeseries Graph	n/m	41 (1 Low)	n/m	n/m	13 (1 Low) ^*1	26/01/2023 09:00
Leamington Spa Timeseries Graph	47 (2 Low)	59 (1 Low)	n/m	6 (1 Low)	10 (1 Low) ^*2	26/01/2023 24:00
Leamington Spa Rugby Road Timeseries Graph	n/m	37 (1 Low)	n/m	5 (1 Low)	8 (1 Low) ^*2	26/01/2023 24:00
Leominster Timeseries Graph	76 (3 Low)	18 (1 Low)	n/m	n/m	n/m	26/01/2023 04:00
Oldbury Birmingham Road Timeseries Graph	n/m	65 (1 Low)	n/m	n/m	n/m	26/01/2023 20:00
Stoke-on-Trent A50 Roadside Timeseries Graph	n/m	63 (1 Low)	n/m	n/m	19 (2 Low) ^*1	26/01/2023 17:00
Stoke-on-Trent Centre Timeseries Graph	35 (2 Low)	62 (1 Low)	n/m	10 (1 Low)	15 (1 Low) ^*2	26/01/2023 24:00
Telford Hollinswood Timeseries Graph	n/m	37 (1 Low)	n/m	8 (1 Low)	13 (1 Low) ^*2	26/01/2023 24:00
Walsall Woodlands Timeseries Graph	50 (2 Low)	57 (1 Low)	n/m	n/m	n/m	26/01/2023 04:00
West Bromwich Kenrick Park Timeseries Graph	n/m	57 (1 Low)	n/m	n/m	n/m	26/01/2023 20:00

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	60 (2 Low)	29 (1 Low)	3 (1 Low)	n/m	n/m	26/01/2023 13:00
Bradford Mayo Avenue Timeseries Graph	n/m	81 (2 Low)	n/m	n/m	n/m	26/01/2023 17:00
Dewsbury Ashworth Grove Timeseries Graph	n/m	40 (1 Low)	n/m	4 (1 Low)	8 (1 Low) ^*2	26/01/2023 24:00
Doncaster A630 Cleveland Street Timeseries Graph	n/m	55 (1 Low)	n/m	n/m	n/m	26/01/2023 19:00
High Muffles Timeseries Graph	77 (3 Low)	2 (1 Low)	n/m	3 (1 Low)	6 (1 Low) ^*2	26/01/2023 24:00
Hull Freetown Timeseries Graph	59 (2 Low)	47 (1 Low)	2 (1 Low)	11 (1 Low)	16 (1 Low) ^*2	25/01/2023 11:15
Hull Holderness Road Timeseries Graph	n/m	41 (1 Low)	n/m	n/m	17 (2 Low) ^*1	26/01/2023 18:00
Immingham Woodlands Avenue Timeseries Graph	n/m	37 (1 Low)	n/m	6 (1 Low)	13 (1 Low) ^*2	26/01/2023 24:00
Leeds Centre Timeseries Graph	64 (2 Low)	n/a	3 (1 Low)	4 (1 Low)	11 (1 Low) ^*2	26/01/2023 17:00
Leeds Headingley Kerbside Timeseries Graph	n/m	53 (1 Low)	n/m	10 (1 Low)	50 (3 Low) ^*1	27/01/2023 01:00
Scunthorpe Town Timeseries Graph	n/m	31 (1 Low)	1 (1 Low)	n/m	9 (1 Low) ^*1	26/01/2023 22:30
Sheffield Barnsley Road Timeseries Graph	n/m	77 (2 Low)	n/m	6 (1 Low)	n/m	26/01/2023 24:00
Sheffield Devonshire Green Timeseries Graph	50 (2 Low)	43 (1 Low)	n/m	5 (1 Low)	8 (1 Low) ^*2	26/01/2023 24:00
Sheffield Tinsley Timeseries Graph	n/m	34 (1 Low)	n/m	5 (1 Low)	8 (1 Low) ^*2	26/01/2023 24:00
York Bootham Timeseries Graph	n/m	18 (1 Low)	n/m	6 (1 Low)	13 (1 Low) ^*1	26/01/2023 24:00
York Fishergate Timeseries Graph	n/m	66 (1 Low)	n/m	4 (1 Low)	11 (1 Low) ^*1	27/01/2023 01:00

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