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 midnight Tue 26th Oct 2021

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	73 (3 Low)	n/m	n/m	3 (1 Low)	4 (1 Low) ^*2	26/10/2021 24:00:
Bush Estate Timeseries Graph	74 (3 Low)	3 (1 Low)	n/m	n/m	n/m	26/10/2021 13:00:00
Dumbarton Roadside Timeseries Graph	n/m	6 (1 Low)	n/m	n/m	n/m	26/10/2021 09:00:00
Edinburgh Nicolson Street Timeseries Graph	n/m	34 (1 Low)	n/m	n/m	n/m	26/10/2021 10:00:00
Edinburgh St Leonards Timeseries Graph	66 (2 Low)	10 (1 Low)	3 (1 Low)	3 (1 Low)	7 (1 Low) ^*2	26/10/2021 06:15:00
Glasgow Great Western Road Timeseries Graph	n/m	48 (1 Low)	n/m	n/m	n/m	26/10/2021 09:00:00
Glasgow High Street Timeseries Graph	n/m	25 (1 Low)	n/m	5 (1 Low)	10 (1 Low) ^*2	26/10/2021 23:00:00
Glasgow Kerbside Timeseries Graph	n/m	61 (1 Low)	n/m	n/m	n/m	26/10/2021 09:00:00
Glasgow Townhead Timeseries Graph	58 (2 Low)	23 (1 Low)	n/m	4 (1 Low)	9 (1 Low) ^*2	26/10/2021 24:00:
Grangemouth Timeseries Graph	n/m	9 (1 Low)	2 (1 Low)	4 (1 Low)	8 (1 Low) ^*1	26/10/2021 20:30:00
Grangemouth Moray Timeseries Graph	n/m	10 (1 Low)	n/m	n/m	n/m	26/10/2021 08:00:00
Greenock A8 Roadside Timeseries Graph	n/m	31 (1 Low)	n/m	5 (1 Low)	8 (1 Low) ^*2	26/10/2021 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	11 (1 Low)	n/m	4 (1 Low)	8 (1 Low) ^*2	26/10/2021 17:00:00
Chesterfield Roadside Timeseries Graph	n/m	n/a	n/m	5 (1 Low)	10 (1 Low) ^*2	26/10/2021 14:00:00
Derby St Alkmund's Way Timeseries Graph	n/m	48 (1 Low)	n/m	n/m	n/m	26/10/2021 14:00:00
Ladybower Timeseries Graph	71 (3 Low)	6 (1 Low)	n/a	n/m	n/m	21/10/2021 13:15:00
Leicester A594 Roadside Timeseries Graph	n/m	49 (1 Low)	n/m	n/m	17 (2 Low) ^*1	26/10/2021 09:00:00
Leicester University Timeseries Graph	n/a	37 (1 Low)	n/m	7 (1 Low)	13 (1 Low) ^*2	26/10/2021 01:00:00
Lincoln Canwick Road Timeseries Graph	n/m	24 (1 Low)	n/m	n/m	n/m	26/10/2021 07:00:00
Northampton Spring Park Timeseries Graph	65 (2 Low)	15 (1 Low)	n/m	7 (1 Low)	n/m	26/10/2021 09:00:00
Nottingham Centre Timeseries Graph	47 (2 Low)	45 (1 Low)	10 (1 Low)	7 (1 Low)	13 (1 Low) ^*2	26/10/2021 22:45:00
Nottingham Western Boulevard Timeseries Graph	n/m	49 (1 Low)	n/m	n/m	14 (1 Low) ^*1	26/10/2021 08:00:00

Eastern

24 Hour Summary, based on data provided by Environment Agency
Monitoring site	Running 8 Hour mean Ozone (µgm^-3)	Hourly mean Nitrogen dioxide (µgm^-3)	Max 15 min mean Sulphur dioxide (µgm^-3)	Running 24 Hour mean PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Borehamwood Meadow Park Timeseries Graph	n/m	39 (1 Low)	n/m	n/m	n/m	26/10/2021 01:00:00
Cambridge Roadside Timeseries Graph	n/m	48 (1 Low)	n/m	n/m	n/m	26/10/2021 09:00:00
Luton A505 Roadside Timeseries Graph	n/m	47 (1 Low)	n/m	n/m	n/m	26/10/2021 08:00:00
Norwich Lakenfields Timeseries Graph	54 (2 Low)	25 (1 Low)	n/m	6 (1 Low)	10 (1 Low) ^*2	26/10/2021 01:00:00
Sandy Roadside Timeseries Graph	n/m	33 (1 Low)	n/m	7 (1 Low)	9 (1 Low) ^*1	26/10/2021 03:00:00
Sibton Timeseries Graph	37 (2 Low)	n/m	n/m	n/m	n/m	26/10/2021 19:00:00
Southend-on-Sea Timeseries Graph	59 (2 Low)	31 (1 Low)	n/m	5 (1 Low)	10 (1 Low) ^*2	26/10/2021 01:00:00
St Osyth Timeseries Graph	63 (2 Low)	19 (1 Low)	n/m	n/m	n/m	26/10/2021 22:00:00
Stanford-le-Hope Roadside Timeseries Graph	n/m	53 (1 Low)	n/m	6 (1 Low)	14 (1 Low) ^*1	26/10/2021 11:00:00
Thurrock Timeseries Graph	59 (2 Low)	52 (1 Low)	2 (1 Low)	n/m	13 (1 Low) ^*1	25/10/2021 23:30:00
Weybourne Timeseries Graph	55 (2 Low)	n/m	n/m	n/m	n/m	26/10/2021 24:00:
Wicken Fen Timeseries Graph	59 (2 Low)	7 (1 Low)	2 (1 Low)	n/m	n/m	26/10/2021 04:30:00

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	n/a	n/m	n/a	n/a	14/09/2021 11:00:00
Ealing Horn Lane Timeseries Graph	n/m	n/m	n/m	n/m	29 (2 Low) ^*1	26/10/2021 01:00:00
Haringey Roadside Timeseries Graph	n/m	48 (1 Low)	n/m	n/m	n/m	26/10/2021 09:00:00
London Bexley Timeseries Graph	n/m	35 (1 Low)	n/m	6 (1 Low)	10 (1 Low) ^*2	26/10/2021 01:00:00
London Bloomsbury Timeseries Graph	52 (2 Low)	29 (1 Low)	8 (1 Low)	8 (1 Low)	18 (2 Low) ^*1	26/10/2021 18:15:00
London Eltham Timeseries Graph	60 (2 Low)	27 (1 Low)	n/m	5 (1 Low)	8 (1 Low) ^*2	26/10/2021 01:00:00
London Haringey Priory Park South Timeseries Graph	48 (2 Low)	24 (1 Low)	n/m	n/m	n/m	26/10/2021 16:00:00
London Harlington Timeseries Graph	47 (2 Low)	40 (1 Low)	n/m	6 (1 Low)	10 (1 Low) ^*2	26/10/2021 02:00:00
London Hillingdon Timeseries Graph	39 (2 Low)	65 (1 Low)	n/m	n/m	n/m	26/10/2021 24:00:
London Honor Oak Park Timeseries Graph	n/m	n/m	n/m	6 (1 Low)	10 (1 Low) ^*2	26/10/2021 24:00:
London Marylebone Road Timeseries Graph	25 (1 Low)	65 (1 Low)	7 (1 Low)	8 (1 Low)	12 (1 Low)	26/10/2021 15:30:00
London N. Kensington Timeseries Graph	57 (2 Low)	26 (1 Low)	1 (1 Low)	7 (1 Low)	11 (1 Low) ^*2	26/10/2021 21:45:00
London Teddington Bushy Park Timeseries Graph	n/m	n/m	n/m	5 (1 Low)	8 (1 Low) ^*2	26/10/2021 20:00:00
London Westminster Timeseries Graph	n/m	39 (1 Low)	n/m	5 (1 Low)	n/m	26/10/2021 07:00:00
Southwark A2 Old Kent Road Timeseries Graph	n/m	41 (1 Low)	n/m	n/m	18 (2 Low) ^*1	26/10/2021 01:00:00
Tower Hamlets Roadside Timeseries Graph	n/m	24 (1 Low)	n/m	n/m	n/m	26/10/2021 08:00:00

Highland

24 Hour Summary, based on data provided by Environment Agency
Monitoring site	Running 8 Hour mean Ozone (µgm^-3)	Hourly mean Nitrogen dioxide (µgm^-3)	Max 15 min mean Sulphur dioxide (µgm^-3)	Running 24 Hour mean PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Fort William Timeseries Graph	70 (3 Low)	14 (1 Low)	n/m	n/m	n/m	26/10/2021 08:00:00
Inverness Timeseries Graph	n/m	79 (2 Low)	n/m	3 (1 Low)	5 (1 Low) ^*2	26/10/2021 16:00:00
Lerwick Timeseries Graph	n/a	n/m	n/m	n/m	n/m	11/10/2021 22:00:00
Strathvaich Timeseries Graph	83 (3 Low)	n/m	n/m	n/m	n/m	26/10/2021 23:00:00

North East

24 Hour Summary, based on data provided by Environment Agency
Monitoring site	Running 8 Hour mean Ozone (µgm^-3)	Hourly mean Nitrogen dioxide (µgm^-3)	Max 15 min mean Sulphur dioxide (µgm^-3)	Running 24 Hour mean PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Billingham Timeseries Graph	n/m	14 (1 Low)	n/m	n/m	n/m	26/10/2021 10:00:00
Hartlepool St Abbs Walk Timeseries Graph	n/m	28 (1 Low)	n/m	n/m	n/m	26/10/2021 08:00:00
Middlesbrough Timeseries Graph	56 (2 Low)	11 (1 Low)	3 (1 Low)	7 (1 Low)	14 (1 Low) ^*1	25/10/2021 20:15:00
Newcastle Centre Timeseries Graph	63 (2 Low)	50 (1 Low)	n/m	7 (1 Low)	14 (1 Low) ^*1	26/10/2021 16:00:00
Newcastle Cradlewell Roadside Timeseries Graph	n/m	68 (2 Low)	n/m	n/m	13 (1 Low) ^*1	26/10/2021 09:00:00
Stockton-on-Tees A1305 Roadside Timeseries Graph	n/m	14 (1 Low)	n/m	6 (1 Low)	n/m	26/10/2021 23:00:00
Stockton-on-Tees Eaglescliffe Timeseries Graph	n/m	10 (1 Low)	n/m	6 (1 Low)	12 (1 Low) ^*1	26/10/2021 23:00:00
Sunderland Silksworth Timeseries Graph	60 (2 Low)	14 (1 Low)	n/m	5 (1 Low)	10 (1 Low) ^*2	26/10/2021 23:00:00
Sunderland Wessington Way Timeseries Graph	n/m	29 (1 Low)	n/m	n/m	n/m	26/10/2021 09:00:00

North East Scotland

24 Hour Summary, based on data provided by Environment Agency
Monitoring site	Running 8 Hour mean Ozone (µgm^-3)	Hourly mean Nitrogen dioxide (µgm^-3)	Max 15 min mean Sulphur dioxide (µgm^-3)	Running 24 Hour mean PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Aberdeen Erroll Park Timeseries Graph	49 (2 Low)	31 (1 Low)	n/m	4 (1 Low)	7 (1 Low) ^*2	26/10/2021 24:00:
Aberdeen Union Street Roadside Timeseries Graph	n/m	26 (1 Low)	n/m	n/m	n/m	26/10/2021 16:00:00
Aberdeen Wellington Road Timeseries Graph	n/m	36 (1 Low)	n/m	n/m	n/m	26/10/2021 08:00:00
Dundee Mains Loan Timeseries Graph	n/m	21 (1 Low)	n/m	n/m	n/m	26/10/2021 10:00:00

North Wales

24 Hour Summary, based on data provided by Environment Agency
Monitoring site	Running 8 Hour mean Ozone (µgm^-3)	Hourly mean Nitrogen dioxide (µgm^-3)	Max 15 min mean Sulphur dioxide (µgm^-3)	Running 24 Hour mean PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Aston Hill Timeseries Graph	71 (3 Low)	1 (1 Low)	n/m	n/m	n/m	26/10/2021 24:00:
Wrexham Timeseries Graph	n/m	21 (1 Low)	4 (1 Low)	5 (1 Low)	9 (1 Low) ^*2	26/10/2021 12:45:00

North West & Merseyside

24 Hour Summary, based on data provided by Environment Agency
Monitoring site	Running 8 Hour mean Ozone (µgm^-3)	Hourly mean Nitrogen dioxide (µgm^-3)	Max 15 min mean Sulphur dioxide (µgm^-3)	Running 24 Hour mean PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Birkenhead Borough Road Timeseries Graph	n/m	43 (1 Low)	n/m	n/m	n/m	26/10/2021 09:00:00
Blackburn Accrington Road Timeseries Graph	n/m	31 (1 Low)	n/m	n/m	n/m	26/10/2021 01:00:00
Blackpool Marton Timeseries Graph	67 (3 Low)	26 (1 Low)	n/m	6 (1 Low)	16 (1 Low) ^*2	26/10/2021 24:00:
Bury Whitefield Roadside Timeseries Graph	n/m	47 (1 Low)	n/m	n/m	15 (1 Low) ^*1	25/10/2021 24:00:
Carlisle Morton A595 Timeseries Graph	n/m	23 (1 Low)	n/m	n/a	n/a	25/10/2021 08:00:00
Crewe Coppenhall Timeseries Graph	n/m	12 (1 Low)	n/m	n/m	n/m	26/10/2021 08:00:00
Glazebury Timeseries Graph	65 (2 Low)	11 (1 Low)	n/m	n/m	n/m	26/10/2021 24:00:
Liverpool Speke Timeseries Graph	n/a	n/a	n/a	n/a	n/a	13/10/2021 23:15:00
Manchester Piccadilly Timeseries Graph	33 (1 Low)	46 (1 Low)	4 (1 Low)	6 (1 Low)	13 (1 Low) ^*2	26/10/2021 23:00:00
Manchester Sharston Timeseries Graph	66 (2 Low)	14 (1 Low)	n/m	n/m	n/m	26/10/2021 23:00:00
Preston Timeseries Graph	68 (3 Low)	31 (1 Low)	n/m	5 (1 Low)	12 (1 Low) ^*2	26/10/2021 08:00:00
Salford Eccles Timeseries Graph	n/m	32 (1 Low)	n/m	6 (1 Low)	11 (1 Low) ^*2	26/10/2021 02:00:00
Shaw Crompton Way Timeseries Graph	n/m	32 (1 Low)	n/m	n/m	n/m	26/10/2021 02:00:00
St Helens Linkway Timeseries Graph	n/m	51 (1 Low)	n/m	n/m	19 (2 Low) ^*1	26/10/2021 11:00:00
Warrington Timeseries Graph	n/m	38 (1 Low)	n/m	5 (1 Low)	10 (1 Low) ^*1	26/10/2021 18:00:00
Widnes Milton Road Timeseries Graph	n/m	67 (1 Low)	n/m	n/m	n/m	26/10/2021 21:00:00
Wigan Centre Timeseries Graph	60 (2 Low)	41 (1 Low)	n/m	6 (1 Low)	11 (1 Low) ^*2	26/10/2021 06:00:00
Wirral Tranmere Timeseries Graph	70 (3 Low)	27 (1 Low)	n/m	4 (1 Low)	8 (1 Low) ^*2	26/10/2021 08:00:00

Northern Ireland

24 Hour Summary, based on data provided by Environment Agency
Monitoring site	Running 8 Hour mean Ozone (µgm^-3)	Hourly mean Nitrogen dioxide (µgm^-3)	Max 15 min mean Sulphur dioxide (µgm^-3)	Running 24 Hour mean PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Armagh Roadside Timeseries Graph	n/m	27 (1 Low)	n/m	n/m	17 (2 Low) ^*1	26/10/2021 16:00:00
Ballymena Antrim Road Timeseries Graph	n/m	22 (1 Low)	n/m	n/m	n/m	26/10/2021 07:00:00
Ballymena Ballykeel Timeseries Graph	n/m	11 (1 Low)	5 (1 Low)	n/m	n/m	26/10/2021 10:15:00
Belfast Centre Timeseries Graph	53 (2 Low)	72 (2 Low)	3 (1 Low)	7 (1 Low)	13 (1 Low) ^*2	25/10/2021 16:30:00
Belfast Stockman's Lane Timeseries Graph	n/m	66 (1 Low)	n/m	n/m	21 (2 Low) ^*1	26/10/2021 09:00:00
Derry Rosemount Timeseries Graph	63 (2 Low)	7 (1 Low)	3 (1 Low)	5 (1 Low)	10 (1 Low) ^*1	26/10/2021 20:30:00
Lough Navar Timeseries Graph	65 (2 Low)	n/m	n/m	4 (1 Low)	7 (1 Low) ^*2	26/10/2021 19:00:00

Scottish Borders

24 Hour Summary, based on data provided by Environment Agency
Monitoring site	Running 8 Hour mean Ozone (µgm^-3)	Hourly mean Nitrogen dioxide (µgm^-3)	Max 15 min mean Sulphur dioxide (µgm^-3)	Running 24 Hour mean PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Dumfries Timeseries Graph	n/m	35 (1 Low)	n/m	n/m	n/m	25/10/2021 24:00:
Eskdalemuir Timeseries Graph	n/a	n/a	n/m	n/m	n/m	18/07/2021 21:00:00
Peebles Timeseries Graph	71 (3 Low)	5 (1 Low)	n/m	n/m	n/m	26/10/2021 12:00:00

South East

24 Hour Summary, based on data provided by Environment Agency
Monitoring site	Running 8 Hour mean Ozone (µgm^-3)	Hourly mean Nitrogen dioxide (µgm^-3)	Max 15 min mean Sulphur dioxide (µgm^-3)	Running 24 Hour mean PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Brighton Preston Park Timeseries Graph	66 (2 Low)	33 (1 Low)	n/m	n/a	n/m	17/09/2021 01:00:00
Canterbury Timeseries Graph	70 (3 Low)	22 (1 Low)	n/m	n/m	n/m	26/10/2021 23:00:00
Chatham Roadside Timeseries Graph	n/m	34 (1 Low)	n/m	6 (1 Low)	24 (2 Low) ^*1	26/10/2021 20:00:00
Chilbolton Observatory Timeseries Graph	65 (2 Low)	8 (1 Low)	6 (1 Low)	4 (1 Low)	7 (1 Low) ^*2	26/10/2021 02:30:00
Eastbourne Timeseries Graph	n/m	7 (1 Low)	n/m	5 (1 Low)	10 (1 Low) ^*2	26/10/2021 24:00:
Horley Timeseries Graph	n/m	32 (1 Low)	n/m	n/m	n/m	26/10/2021 09:00:00
Lullington Heath Timeseries Graph	69 (3 Low)	n/a	n/a	n/m	n/m	08/09/2021 18:45:00
Oxford Centre Roadside Timeseries Graph	n/m	69 (2 Low)	n/m	n/m	n/m	26/10/2021 09:00:00
Oxford St Ebbes Timeseries Graph	n/m	21 (1 Low)	n/m	4 (1 Low)	8 (1 Low) ^*2	26/10/2021 01:00:00
Portsmouth Timeseries Graph	81 (3 Low)	62 (1 Low)	n/m	6 (1 Low)	12 (1 Low) ^*2	26/10/2021 23:00:00
Portsmouth Anglesea Road Timeseries Graph	n/m	62 (1 Low)	n/m	n/m	20 (2 Low) ^*1	26/10/2021 09:00:00
Reading London Road Timeseries Graph	n/m	19 (1 Low)	n/m	n/m	13 (1 Low) ^*1	26/10/2021 01:00:00
Reading New Town Timeseries Graph	53 (2 Low)	27 (1 Low)	n/m	4 (1 Low)	12 (1 Low) ^*1	26/10/2021 05:00:00
Rochester Stoke Timeseries Graph	63 (2 Low)	19 (1 Low)	2 (1 Low)	6 (1 Low)	11 (1 Low) ^*2	26/10/2021 16:15:00
Southampton A33 Timeseries Graph	n/m	67 (1 Low)	n/m	n/m	14 (1 Low) ^*1	26/10/2021 09:00:00
Southampton Centre Timeseries Graph	58 (2 Low)	62 (1 Low)	3 (1 Low)	6 (1 Low)	10 (1 Low) ^*2	26/10/2021 09:00:00
Storrington Roadside Timeseries Graph	n/m	49 (1 Low)	n/m	n/m	n/m	26/10/2021 08:00:00
Worthing A27 Roadside Timeseries Graph	n/m	60 (1 Low)	n/m	6 (1 Low)	n/m	26/10/2021 22:00:00

South Wales

24 Hour Summary, based on data provided by Environment Agency
Monitoring site	Running 8 Hour mean Ozone (µgm^-3)	Hourly mean Nitrogen dioxide (µgm^-3)	Max 15 min mean Sulphur dioxide (µgm^-3)	Running 24 Hour mean PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Cardiff Centre Timeseries Graph	63 (2 Low)	31 (1 Low)	1 (1 Low)	6 (1 Low)	11 (1 Low) ^*1	26/10/2021 13:00:00
Cardiff Newport Road Timeseries Graph	n/m	33 (1 Low)	n/m	n/m	10 (1 Low) ^*1	26/10/2021 01:00:00
Chepstow A48 Timeseries Graph	n/m	45 (1 Low)	n/m	5 (1 Low)	15 (1 Low) ^*1	26/10/2021 05:00:00
Cwmbran Crownbridge Timeseries Graph	63 (2 Low)	28 (1 Low)	n/m	n/m	n/m	26/10/2021 19:00:00
Hafod-yr-ynys Roadside Timeseries Graph	n/m	116 (2 Low)	n/m	n/m	n/m	26/10/2021 08:00:00
Narberth Timeseries Graph	72 (3 Low)	2 (1 Low)	4 (1 Low)	4 (1 Low)	9 (1 Low) ^*2	26/10/2021 23:00:00
Newport Timeseries Graph	n/m	41 (1 Low)	n/m	5 (1 Low)	10 (1 Low) ^*2	26/10/2021 02:00:00
Port Talbot Margam Timeseries Graph	57 (2 Low)	36 (1 Low)	35 (1 Low)	10 (1 Low)	74 (6 Moderate) ^*1	26/10/2021 20:30:00
Swansea Roadside Timeseries Graph	n/m	29 (1 Low)	n/m	11 (1 Low)	14 (1 Low) ^*1	26/10/2021 19:00:00

South West

24 Hour Summary, based on data provided by Environment Agency
Monitoring site	Running 8 Hour mean Ozone (µgm^-3)	Hourly mean Nitrogen dioxide (µgm^-3)	Max 15 min mean Sulphur dioxide (µgm^-3)	Running 24 Hour mean 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	2 (1 Low)	8 (1 Low) ^*1	26/10/2021 13:00:00
Bath A4 Roadside Timeseries Graph	n/m	54 (1 Low)	n/m	n/m	n/m	26/10/2021 09:00:00
Bournemouth Timeseries Graph	84 (3 Low)	18 (1 Low)	n/m	8 (1 Low)	n/m	26/10/2021 24:00:
Bristol St Paul's Timeseries Graph	54 (2 Low)	34 (1 Low)	n/m	6 (1 Low)	13 (1 Low) ^*1	26/10/2021 17:00:00
Bristol Temple Way Timeseries Graph	n/m	n/a	n/m	n/m	18 (2 Low) ^*1	23/10/2021 10:00:00
Charlton Mackrell Timeseries Graph	n/a	n/a	n/m	n/m	n/m	24/10/2021 08:00:00
Christchurch Barrack Road Timeseries Graph	n/m	12 (1 Low)	n/m	6 (1 Low)	n/m	26/10/2021 24:00:
Exeter Roadside Timeseries Graph	54 (2 Low)	55 (1 Low)	n/m	n/m	n/m	26/10/2021 22:00:00
Honiton Timeseries Graph	n/m	9 (1 Low)	n/m	n/m	n/m	26/10/2021 16:00:00
Plymouth Centre Timeseries Graph	68 (3 Low)	28 (1 Low)	n/m	8 (1 Low)	16 (1 Low) ^*2	26/10/2021 23:00:00
Plymouth Tavistock Road Timeseries Graph	n/m	36 (1 Low)	n/m	n/m	n/m	26/10/2021 08:00:00
Saltash Callington Road Timeseries Graph	n/m	n/m	n/m	3 (1 Low)	17 (2 Low) ^*1	26/10/2021 24:00:
Swindon Walcot Timeseries Graph	n/m	7 (1 Low)	n/m	n/m	n/m	26/10/2021 18:00:00
Yarner Wood Timeseries Graph	73 (3 Low)	3 (1 Low)	n/m	n/m	n/m	26/10/2021 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	88 (3 Low)	n/m	n/m	n/m	n/m	25/10/2021 23:00:00

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	36 (2 Low)	53 (1 Low)	n/m	7 (1 Low)	13 (1 Low) ^*2	26/10/2021 18:00:00
Birmingham Acocks Green Timeseries Graph	n/a	n/a	n/m	n/a	n/a	01/10/2021 03:00:00
Birmingham Ladywood Timeseries Graph	61 (2 Low)	17 (1 Low)	2 (1 Low)	5 (1 Low)	9 (1 Low) ^*2	26/10/2021 01:45:00
Burton-on-Trent Horninglow Timeseries Graph	n/m	34 (1 Low)	n/m	n/m	n/m	26/10/2021 01:00:00
Cannock A5190 Roadside Timeseries Graph	n/m	19 (1 Low)	n/m	n/m	n/m	26/10/2021 09:00:00
Coventry Allesley Timeseries Graph	61 (2 Low)	27 (1 Low)	n/m	5 (1 Low)	9 (1 Low) ^*2	26/10/2021 17:00:00
Coventry Binley Road Timeseries Graph	n/m	37 (1 Low)	n/m	n/m	15 (1 Low) ^*1	26/10/2021 09:00:00
Leamington Spa Timeseries Graph	72 (3 Low)	n/a	n/m	5 (1 Low)	9 (1 Low) ^*2	26/10/2021 01:00:00
Leamington Spa Rugby Road Timeseries Graph	n/m	23 (1 Low)	n/m	4 (1 Low)	7 (1 Low) ^*2	26/10/2021 16:00:00
Leominster Timeseries Graph	69 (3 Low)	17 (1 Low)	n/m	n/m	n/m	26/10/2021 24:00:
Oldbury Birmingham Road Timeseries Graph	n/m	36 (1 Low)	n/m	n/m	n/m	26/10/2021 08:00:00
Stoke-on-Trent A50 Roadside Timeseries Graph	n/m	66 (1 Low)	n/m	n/m	14 (1 Low) ^*1	26/10/2021 09:00:00
Stoke-on-Trent Centre Timeseries Graph	54 (2 Low)	39 (1 Low)	n/m	5 (1 Low)	9 (1 Low) ^*2	26/10/2021 01:00:00
Telford Hollinswood Timeseries Graph	n/m	24 (1 Low)	n/m	n/m	n/m	26/10/2021 09:00:00
Walsall Woodlands Timeseries Graph	59 (2 Low)	21 (1 Low)	n/m	n/m	n/m	26/10/2021 24:00:
West Bromwich Kenrick Park Timeseries Graph	n/m	27 (1 Low)	n/m	n/m	n/m	26/10/2021 08:00:00

Yorkshire & Humberside

24 Hour Summary, based on data provided by Environment Agency
Monitoring site	Running 8 Hour mean Ozone (µgm^-3)	Hourly mean Nitrogen dioxide (µgm^-3)	Max 15 min mean Sulphur dioxide (µgm^-3)	Running 24 Hour mean PM_2.5 Particles (µgm^-3)	Running 24 Hour mean PM₁₀ Particles (µgm^-3)	Last updated
Barnsley Gawber Timeseries Graph	71 (3 Low)	19 (1 Low)	5 (1 Low)	n/m	n/m	26/10/2021 23:45:00
Bradford Mayo Avenue Timeseries Graph	n/m	42 (1 Low)	n/m	n/m	n/m	26/10/2021 07:00:00
Dewsbury Ashworth Grove Timeseries Graph	n/m	45 (1 Low)	n/m	n/m	n/m	26/10/2021 09:00:00
Doncaster A630 Cleveland Street Timeseries Graph	n/m	42 (1 Low)	n/m	n/m	n/m	26/10/2021 18:00:00
High Muffles Timeseries Graph	66 (2 Low)	15 (1 Low)	n/m	n/m	n/m	26/10/2021 23:00:00
Hull Freetown Timeseries Graph	42 (2 Low)	46 (1 Low)	6 (1 Low)	7 (1 Low)	12 (1 Low) ^*2	26/10/2021 08:15:00
Hull Holderness Road Timeseries Graph	n/m	53 (1 Low)	n/m	n/m	24 (2 Low) ^*1	26/10/2021 08:00:00
Immingham Woodlands Avenue Timeseries Graph	n/m	9 (1 Low)	n/m	n/m	n/m	26/10/2021 08:00:00
Leeds Centre Timeseries Graph	65 (2 Low)	57 (1 Low)	5 (1 Low)	6 (1 Low)	13 (1 Low) ^*2	26/10/2021 12:15:00
Leeds Headingley Kerbside Timeseries Graph	n/m	54 (1 Low)	n/m	7 (1 Low)	19 (2 Low) ^*1	26/10/2021 10:00:00
Scunthorpe Town Timeseries Graph	n/m	19 (1 Low)	1 (1 Low)	n/m	15 (1 Low) ^*1	25/10/2021 24:15:
Sheffield Barnsley Road Timeseries Graph	n/m	41 (1 Low)	n/m	9 (1 Low)	n/m	26/10/2021 13:00:00
Sheffield Devonshire Green Timeseries Graph	61 (2 Low)	19 (1 Low)	n/m	5 (1 Low)	10 (1 Low) ^*2	26/10/2021 17:00:00
Sheffield Tinsley Timeseries Graph	n/m	46 (1 Low)	n/m	n/m	n/m	26/10/2021 08:00:00
York Bootham Timeseries Graph	n/m	25 (1 Low)	n/m	8 (1 Low)	14 (1 Low) ^*1	26/10/2021 11:00:00
York Fishergate Timeseries Graph	n/m	34 (1 Low)	n/m	5 (1 Low)	15 (1 Low) ^*1	26/10/2021 03:00:00

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

UK AIR

Air Information Resource