Advisories:

Current Levels

Monitoring site Hourly mean Nitrogen dioxide (µg/m³) Hourly mean Nitric oxide (µg/m³) Hourly mean oxides of Nitrogen (µg/m³) Max 15 min mean Sulphur dioxide (µg/m³) Running 24 Hour mean PM10 Particles (µg/m³) Running 24 Hour mean PM2.5 Particles (µg/m³)
Abingdon Stert Street CLOSED
n/m -36.5
-24.4
n/m n/m n/m
Ashford Background CLOSED
n/m No Data 0
n/m n/m n/m
Ashford M20 Background CLOSED
n/m No Data 0
n/m n/m n/m
Ashford Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Ashford Rural CLOSED
n/m n/m n/m n/m n/m n/m
Bath A4 Roadside AURN
n/m No Data 0
n/m n/m n/m
Bath Chelsea House CLOSED
n/m No Data 0
n/m n/m n/m
Bath Gay Street Zephyr
n/m 0.0
0
n/m n/m n/m
Bath Windsor Bridge
n/m 0.3
4.3
n/m n/m n/m
Bedford Kempston CLOSED
n/m n/m n/m n/m n/m n/m
Bedford Lurke Street CLOSED
n/m No Data 0
n/m n/m n/m
Bedford Prebend Street CLOSED
n/m No Data 0
n/m n/m n/m
Bedford Stewartby CLOSED
n/m n/m n/m n/m n/m n/m
Belfast Centre AURN
n/m No Data 0
n/m n/m n/m
Belfast Ormeau Road CLOSED
n/m No Data 0
n/m n/m n/m
Belfast Stockmans Lane FDMS CLOSED
n/m n/m n/m n/m n/m n/m
Belfast Stockmans Lane NOx CLOSED
n/m No Data 0
n/m n/m n/m
Belfast Westlink Roden Street BAM CLOSED
n/m n/m n/m n/m n/m n/m
Belfast Westlink Roden Street NOx CLOSED
n/m No Data 0
n/m n/m n/m
Birkenhead Borough Road AURN
n/m No Data 0
n/m n/m n/m
Blackburn Accrington Road AURN
n/m No Data 0
n/m n/m n/m
Blackburn Darwen Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Bradford Apperley Bridge Marina Zephyr
n/m 0.0
0
n/m n/m n/m
Bradford Cavendish Prim Sch Hall Rd Zephyr
n/m 1.1
0
n/m n/m n/m
Bradford East Bowling Flockton Grove Zephyr
n/m 0.0
0
n/m n/m n/m
Bradford Farfield Prim Sch Reevy Cres Zephyr
n/m 8.6
0
n/m n/m n/m
Bradford Girlington St Leonards Road Zephyr
n/m 3.9
0
n/m n/m n/m
Bradford Gt Horton All Saints Prim Sch Zephyr
n/m 0.2
0
n/m n/m n/m
Bradford Horton Aberdeen Place Zephyr
n/m 2.4
0
n/m n/m n/m
Bradford Ilkley Grove Road Zephyr
n/m 1.0
0
n/m n/m n/m
Bradford Keighley
n/m 5.2
17.6
n/m n/m n/m
Bradford Keighley Zephyr
n/m 4.0
0
n/m n/m n/m
Bradford Low Moor First Street Zephyr
n/m 3.6
0
n/m n/m n/m
Bradford Mannigham Lane
n/m 11.6
30.8
n/m n/m n/m
Bradford Mayo Avenue AURN
n/m 15.6
50.5
n/m n/m n/m
Bradford Rooley Lane
n/m 12.3
35.8
n/m n/m n/m
Bradford Saltaire Titus Street Zephyr
n/m 0.2
0
n/m n/m n/m
Bradford Silsden Hothfield Street Zephyr
n/m 0.5
0
n/m n/m n/m
Bradford Thornton Road
n/m 12.6
32.5
n/m n/m n/m
Bradford Tong Street
n/m 2.0
11.9
n/m n/m n/m
Bradford Treadwell Mills
n/m No Data 0
n/m n/m n/m
Breckland East Wretham CLOSED
n/m No Data 0
n/m n/m n/m
Bristol St Paul's AURN
n/m No Data 0
n/m n/m n/m
Bristol Temple Way AURN
n/m No Data 0
n/m n/m n/m
Broxbourne College Road A10 CLOSED
n/m n/m n/m n/m n/m n/m
Broxbourne Eleanor Cross CLOSED
n/m n/m n/m n/m n/m n/m
Broxtowe Trowell Zephyr
n/m 4.7
0
n/m n/m n/m
Burton-on-Trent Horninglow AURN
n/m No Data 0
n/m n/m n/m
Cambridge Roadside AURN
n/m 1.0
8.4
n/m n/m n/m
Cannock A5190 Roadside AURN
n/m No Data 0
n/m n/m n/m
Cannock Chase Bridgtown CLOSED
n/m No Data 0
n/m n/m n/m
Cannock Chase Norton Canes CLOSED
n/m No Data 0
n/m n/m n/m
Cannock Watling Street AURN CLOSED
n/m No Data 0
n/m n/m n/m
Canterbury AURN CLOSED
n/m No Data 0
n/m n/m n/m
Canterbury Military Road CLOSED
n/m No Data 0
n/m n/m n/m
Canterbury North Lane CLOSED
n/m No Data 0
n/m n/m n/m
Canterbury Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Canterbury St. Peters Place CLOSED
n/m No Data 0
n/m n/m n/m
Castlereagh Dundonald
n/m 0.0
11.0
n/m n/m n/m
Central Beds Marston Vale CLOSED
n/m n/m n/m n/m n/m n/m
Chatham Luton Background CLOSED
n/m No Data 0
n/m n/m n/m
Chatham Roadside AURN
n/m No Data 0
n/m n/m n/m
Chester Boughton
n/m -1.6
0.5
n/m n/m n/m
Chester Bus Interchange
n/m 1.2
7.2
n/m n/m n/m
Crewe Coppenhall AURN
n/m No Data 0
n/m n/m n/m
Dacorum Hemel Hempstead 2 CLOSED
n/m No Data 0
n/m n/m n/m
Dacorum Northchurch High Street CLOSED
n/m No Data 0
n/m n/m n/m
Dacorum Northchurch High Street CLOSED
n/m No Data 0
n/m n/m n/m
Dover Background 2 CLOSED
n/m n/m n/m n/m n/m n/m
Dover Centre Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Dover Docks CLOSED
n/m No Data 0
n/m n/m n/m
Dover Langdon Cliff CLOSED
n/m n/m n/m n/m n/m n/m
Dover Old Town Hall Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Downpatrick Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Durham Crossgate CLOSED
n/m No Data 0
n/m n/m n/m
Durham Gilesgate CLOSED
n/m No Data 0
n/m n/m n/m
Durham Hawthorne Terrace CLOSED
n/m No Data 0
n/m n/m n/m
Durham Leazes Road
n/m 10.3
39.7
n/m n/m n/m
Durham New Elvet CLOSED
n/m No Data 0
n/m n/m n/m
East Hampshire Bordon CLOSED
n/m No Data 0
n/m n/m n/m
East Herts Anstey CLOSED
n/m n/m n/m n/m n/m n/m
East Herts Bishops Stortford CLOSED
n/m No Data 0
n/m n/m n/m
East Herts Hertford Gascoyne Way CLOSED
n/m No Data 0
n/m n/m n/m
East Herts Throcking CLOSED
n/m n/m n/m n/m n/m n/m
East Herts Ware CLOSED
n/m No Data 0
n/m n/m n/m
East Staffordshire Derby Turn BAM CLOSED
n/m n/m n/m n/m n/m n/m
East Staffordshire Derby Turn CLOSED
n/m No Data 0
n/m n/m n/m
East Staffordshire Derby Turn NOx CLOSED
n/m No Data 0
n/m n/m n/m
EH Sawbridgeworth Background CLOSED
n/m No Data 0
n/m n/m n/m
EH Sawbridgeworth Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Ellesmere Port Library CLOSED
n/m n/m n/m n/m n/m n/m
Ellesmere Port Stanney Grange CLOSED
n/m No Data 0
n/m n/m n/m
Ellesmere Port Whitby Road
n/m 1.6
3.8
n/m n/m n/m
Elmbridge Esher High Street
n/m n/m n/m n/m n/m n/m
Elmbridge Hampton Court Parade
n/m No Data 0
n/m n/m n/m
Elmbridge Weybridge High St 2
n/m 36.5
42.6
n/m n/m n/m
Elmbridge Weybridge High St CLOSED
n/m No Data 0
n/m n/m n/m
Elton School Lane
n/m n/m n/m n/m n/m n/m
Folkestone Suburban CLOSED
n/m No Data 0
n/m n/m n/m
Frodsham Langdale Way
n/m No Data 0
n/m n/m n/m
Gedling Daybrook
n/m 0.6
5.3
n/m n/m n/m
Gosport Tichborne Way CLOSED
n/m No Data 0
n/m n/m n/m
Grantham Wharf Road CLOSED
n/m No Data 0
n/m n/m n/m
Gravesham A2 Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Gravesham Background CLOSED
n/m No Data 0
n/m n/m n/m
Gravesham Industrial Background CLOSED
n/m No Data 0
n/m n/m n/m
Great Yarmouth Gorleston CLOSED
n/m No Data 0
n/m n/m n/m
Great Yarmouth South Denes
n/m 0.0
0.5
n/m n/m n/m
Great Yarmouth South Denes Zephyr
n/m 0
8
n/m n/m n/m
Harborough CLOSED
n/m 70.8
153.0
n/m n/m n/m
Hart Blackwater CLOSED
n/m No Data 0
n/m n/m n/m
Helsby Mountain View CLOSED
n/m No Data 0
n/m n/m n/m
Hertsmere Borehamwood 1 CLOSED
n/m No Data 0
n/m n/m n/m
Hertsmere Borehamwood Background CLOSED
n/m No Data 0
n/m n/m n/m
Hertsmere Borehamwood CLOSED
n/m No Data 0
n/m n/m n/m
Hertsmere Borehamwood Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Hull Freetown AURN
n/m No Data 0
n/m n/m n/m
Hull Holderness Road AURN
n/m No Data 0
n/m n/m n/m
Immingham Woodlands Avenue AURN
n/m No Data 0
n/m n/m n/m
Ipswich Chevallier Street CLOSED
n/m No Data 0
n/m n/m n/m
Ipswich Pipers Court CLOSED
n/m No Data 0
n/m n/m n/m
Kidderminster Horsefair Zephyr CLOSED
n/m 43.8
0
n/m n/m n/m
Kidderminster Stourport Road
n/m 0.6
4.3
n/m n/m n/m
King’s Lynn North Lynn CLOSED
n/m n/m n/m n/m n/m n/m
King’s Lynn Stoke Ferry Furlong Road CLOSED
n/m n/m n/m n/m n/m n/m
King's Lynn Estuary Close
n/m n/m n/m n/m n/m n/m
Kings Lynn Gaywood
n/m No Data 0
n/m n/m n/m
Kings Lynn Leziate CLOSED
n/m No Data 0
n/m n/m n/m
Kings Lynn Leziate OSIRIS CLOSED
n/m n/m n/m n/m n/m n/m
Kings Lynn Page Stair Lane
n/m n/m n/m n/m n/m n/m
King's Lynn Railway Road Zephyr
n/m 1
8
n/m n/m n/m
Kings Lynn Southgates
n/m 0.0
0.5
n/m n/m n/m
King's Lynn St Michael's CLOSED
n/m n/m n/m n/m n/m n/m
King's Lynn Stoke Ferry Buckenham Drive CLOSED
n/m n/m n/m n/m n/m n/m
Kings Lynn Stoke Ferry Indigo Road Osiris
n/m n/m n/m n/m n/m n/m
King's Lynn Stoke Ferry TEOM CLOSED
n/m n/m n/m n/m n/m n/m
Kings Lynn Stoke Ferry Wretton Road
n/m n/m n/m n/m n/m n/m
Lancaster Cable Street
n/m No Data 140.4
n/m n/m n/m
Lancaster Dalton Square CLOSED
n/m 17.5
41.1
n/m n/m n/m
Leicester A594 Roadside AURN
n/m No Data 0
n/m n/m n/m
Leicester University AURN
n/m No Data 0
n/m n/m n/m
Limavady Dungiven CLOSED
n/m No Data 0
n/m n/m n/m
Lisburn Dunmurry Seymour Hill
n/m n/m n/m n/m n/m n/m
Lisburn Dunmurry Seymour Hill CLOSED
n/m No Data 0
n/m n/m n/m
Lisburn Dunmurry Seymour Hill PM2.5
n/m n/m n/m n/m n/m n/m
Lisburn Lagan Valley Hospital CLOSED
n/m No Data 0
n/m n/m n/m
Liverpool Centre AURN CLOSED
n/m No Data 0
n/m n/m n/m
Liverpool Clayton Square CLOSED
n/m No Data 0
n/m n/m n/m
Liverpool Edge Lane CLOSED
n/m 5.2
29.1
n/m n/m n/m
Liverpool Everton Valley CLOSED
n/m 11.1
38.3
n/m n/m n/m
Liverpool Hunter Street
n/m 17
58
n/m n/m n/m
Liverpool Islington CLOSED
n/m No Data 0
n/m n/m n/m
Liverpool Lime Street CLOSED
n/m 8.7
45.1
n/m n/m n/m
Liverpool Old Haymarket Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Liverpool Pembroke Place
n/m 20
64
n/m n/m n/m
Liverpool Queen's Drive Roadside AURN CLOSED
n/m No Data 0
n/m n/m n/m
Liverpool Speke AURN
n/m No Data 0
n/m n/m n/m
Liverpool Speke Road CLOSED
n/m No Data 0
n/m n/m n/m
Liverpool Walton Vale
n/m 1.6
5.7
n/m n/m n/m
London Bexley AURN
n/m No Data 0
n/m n/m n/m
London Haringey AURN CLOSED
n/m No Data 0
n/m n/m n/m
London Haringey Priory Park South AURN
n/m No Data 0
n/m n/m n/m
London Haringey Roadside AURN
n/m No Data 0
n/m n/m n/m
London Harrow Stanmore Background
n/m 1.9
7.2
n/m n/m n/m
London Waltham Forest Chingford CLOSED
n/m No Data 0
n/m n/m n/m
London Waltham Forest Crooked Billet CLOSED
n/m No Data 0
n/m n/m n/m
London Waltham Forest Dawlish Rd CLOSED
n/m No Data 0
n/m n/m n/m
London Waltham Forest Leyton CLOSED
n/m No Data 0
n/m n/m n/m
Luton A505 Roadside AURN
n/m No Data 0
n/m n/m n/m
Luton Airport CLOSED
n/m n/m n/m n/m n/m n/m
Luton Challney Community College CLOSED
n/m No Data 0
n/m n/m n/m
Luton Dunstable Road East CLOSED
n/m No Data 0
n/m n/m n/m
Maidstone A229 Kerbside CLOSED
n/m No Data 0
n/m n/m n/m
Maidstone Rural CLOSED
n/m No Data 0
n/m n/m n/m
Maidstone Upper Stone Street CLOSED
n/m No Data 0
n/m n/m n/m
Mid Beds Biggleswade CLOSED
n/m No Data 0
n/m n/m n/m
Mid Beds Sandy CLOSED
n/m No Data 0
n/m n/m n/m
Mid Beds Silsoe CLOSED
n/m n/m n/m n/m n/m n/m
Newcastle Centre AURN
n/m No Data 0
n/m n/m n/m
Newcastle Cradlewell Roadside AURN
n/m No Data 0
n/m n/m n/m
Newcastle Gosforth High Street CLOSED
n/m n/m n/m n/m n/m n/m
Newcastle Percy Street
n/m 18.7
39.2
n/m n/m n/m
Newcastle Pilgrim Street
n/m 1.2
6.7
n/m n/m n/m
Newcastle-under-Lyme Queens Gardens CLOSED
n/m No Data 0
n/m n/m n/m
Newtownabbey Antrim Road CLOSED
n/m No Data 0
n/m n/m n/m
Newtownabbey Ballyclare Main St CLOSED
n/m No Data 0
n/m n/m n/m
Newtownabbey Sandyknowes CLOSED
n/m No Data 0
n/m n/m n/m
North Down Holywood A2
n/m 0.0
2.4
n/m n/m n/m
North Herts Baldock 1 CLOSED
n/m No Data 0
n/m n/m n/m
North Herts Baldock 2 CLOSED
n/m No Data 0
n/m n/m n/m
North Herts Baldock CLOSED
n/m No Data 0
n/m n/m n/m
North Herts Breechwood Green CLOSED
n/m No Data 0
n/m n/m n/m
North Herts Hitchin Library CLOSED
n/m No Data 0
n/m n/m n/m
North Herts Hitchin Stevenage Rd CLOSED
n/m n/m n/m n/m n/m n/m
North Herts Hitchin Stevenage Road CLOSED
n/m No Data 0
n/m n/m n/m
North Herts Royston CLOSED
n/m No Data 0
n/m n/m n/m
North Lincs Appleby Village CLOSED
n/m n/m n/m n/m n/m n/m
North Lincs Killingholme East Halton Road CLOSED
n/m n/m n/m n/m n/m n/m
North Lincs Killingholme Roadside CLOSED
n/m No Data 0
n/m n/m n/m
North Lincs Killingholme School
n/m 1.2
4.3
n/m n/m n/m
North Lincs Santon
n/m 0.0
0.0
n/m n/m n/m
North Lincs Santon PM10
n/m n/m n/m n/m n/m n/m
North Lincs South Ferriby Osiris CLOSED
n/m n/m n/m n/m n/m n/m
Norwich Castle Meadow 2
n/m 0.2
1.9
n/m n/m n/m
Norwich Castle Meadow CLOSED
n/m No Data 0
n/m n/m n/m
Norwich Lakenfields AURN
n/m No Data 0
n/m n/m n/m
Nottingham Bilborough AURN
n/m n/m n/m n/m n/m n/m
Nottingham Carter Gate
n/m 0.0
8.6
n/m n/m n/m
Nottingham Centre AURN CLOSED
n/m No Data 0
n/m n/m n/m
Nottingham Kenmore Gardens AURN
n/m No Data 0
n/m n/m n/m
Nottingham Lace Street
n/m 0.3
9.6
n/m n/m n/m
Nottingham St Andrews Road
n/m 1.9
8.1
n/m n/m n/m
Nottingham Western Boulevard AURN
n/m No Data 0
n/m n/m n/m
Oadby Zephyr
n/m 3.5
0
n/m n/m n/m
Oldbury Birmingham Road AURN
n/m No Data 0
n/m n/m n/m
Oxford Centre Roadside AURN
n/m No Data 0
n/m n/m n/m
Oxford St Ebbes AURN
n/m No Data 0
n/m n/m n/m
Pendle Colne Skipton Road CLOSED
n/m No Data 0
n/m n/m n/m
Portsmouth Anglesea Road AURN
n/m No Data 0
n/m n/m n/m
Portsmouth AURN
n/m No Data 0
n/m n/m n/m
Preston AURN
n/m No Data 0
n/m n/m n/m
Preston Meadow Street Ringway
n/m 1.2
4.8
n/m n/m n/m
Reading New Town AURN
n/m No Data 0
n/m n/m n/m
Rochester Stoke AURN
n/m 0.4
7.3
n/m n/m n/m
Rushcliffe A52 Stragglethorpe Road CLOSED
n/m 22.4
69.3
n/m n/m n/m
Rushcliffe Loughborough Road CLOSED
n/m No Data 0
n/m n/m n/m
Rushcliffe Trent Bridge Roadside CLOSED
n/m 58.9
132.0
n/m n/m n/m
Sandy Roadside AURN CLOSED
n/m No Data 0
n/m n/m n/m
Scunthorpe Amvale CLOSED
n/m n/m n/m n/m n/m n/m
Scunthorpe East Common Lane
n/m n/m n/m n/m n/m n/m
Scunthorpe East Common Lane Osiris
n/m n/m n/m n/m n/m n/m
Scunthorpe High Street East
n/m n/m n/m n/m n/m n/m
Scunthorpe Lakeside CLOSED
n/m n/m n/m n/m n/m n/m
Scunthorpe Redbourn Club CLOSED
n/m n/m n/m n/m n/m n/m
Scunthorpe Town AURN
n/m 0.4
3.4
n/m n/m n/m
Scunthorpe Town TEOM
n/m n/m n/m n/m n/m n/m
Sevenoaks 1 CLOSED
n/m No Data 0
n/m n/m n/m
South Beds Dunstable CLOSED
n/m No Data 0
n/m n/m n/m
South Glos Badminton CLOSED
n/m n/m n/m n/m n/m n/m
South Glos Coldharbour Lane A4174
n/m 1.2
7.2
n/m n/m n/m
South Glos Filton CLOSED
n/m No Data 0
n/m n/m n/m
South Glos Hambrook A4174
n/m 2.2
12.0
n/m n/m n/m
South Glos Yate
n/m 0.9
7.2
n/m n/m n/m
South Norfolk Long Stratton CLOSED
n/m No Data 0
n/m n/m n/m
South Staffordshire Penkridge CLOSED
n/m No Data 0
n/m n/m n/m
South Tyneside Boldon Lane
n/m -5.0
67.4
n/m n/m n/m
South Tyneside Edinburgh Road
n/m 1.2
20.1
n/m n/m n/m
South Tyneside Hall Road
n/m 0
4
n/m n/m n/m
South Tyneside Tyne Dock CLOSED
n/m No Data 0
n/m n/m n/m
Southampton A33 AURN
n/m 1.2
10.3
n/m n/m n/m
Southampton Centre AURN
n/m 1.0
6.1
n/m n/m n/m
Southampton Onslow Road
n/m 0.3
4.3
n/m n/m n/m
Southampton Victoria Road
n/m 0.0
3.8
n/m n/m n/m
St Albans Fleetville CLOSED
n/m No Data 0
n/m n/m n/m
St. Helens Borough Road
n/m 35.2
99.1
n/m n/m n/m
St. Helens Linkway
n/m 1.7
9.0
n/m n/m n/m
St. Helens Newton Southworth Road
n/m No Data 0
n/m n/m n/m
St. Helens Newton-le-Willows High Street
n/m 1.6
4.3
n/m n/m n/m
Stanford-le-Hope Roadside AURN
n/m 3.1
19.5
n/m n/m n/m
Stevenage AURN CLOSED
n/m No Data 0
n/m n/m n/m
Stevenage Lytton Way CLOSED
n/m 1.0
4.0
n/m n/m n/m
Stevenage Lytton Way CLOSED
n/m No Data 0
n/m n/m n/m
Stewartby AURN CLOSED
n/m n/m n/m n/m n/m n/m
Stoke-on-Trent A50 Roadside AURN
n/m 1.9
11.1
n/m n/m n/m
Stoke-on-Trent Centre AURN
n/m No Data 0
n/m n/m n/m
Sunderland Silksworth AURN CLOSED
n/m 0.4
3.1
n/m n/m n/m
Sunderland Trimdon Street CLOSED
n/m 22.0
61.0
n/m n/m n/m
Sunderland Wessington Way AURN
n/m 0.1
2.5
n/m n/m n/m
Surrey Heath Camberley
n/m No Data 0
n/m n/m n/m
Swaffham CLOSED
n/m No Data 0
n/m n/m n/m
Swale Newington 3 CLOSED
n/m No Data 0
n/m n/m n/m
Swale Newington CLOSED
n/m No Data 0
n/m n/m n/m
Swale Ospringe Roadside 2 CLOSED
n/m 25.0
57.0
n/m n/m n/m
Swale Ospringe Roadside 2 CLOSED
n/m No Data 0
n/m n/m n/m
Swale Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Swale Sheerness CLOSED
n/m No Data 0
n/m n/m n/m
Swale St Pauls Street CLOSED
n/m No Data 0
n/m n/m n/m
Telford Hollinswood AURN
n/m 0.5
9.6
n/m n/m n/m
Thanet Airport CLOSED
n/m No Data 0
n/m n/m n/m
Thanet Birchington Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Thanet Margate Background CLOSED
n/m No Data 0
n/m n/m n/m
Thanet Ramsgate Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Thanet Rural CLOSED
n/m n/m n/m n/m n/m n/m
Thornton-le-Moors Park Road
n/m No Data 0
n/m n/m n/m
Thornton-le-Moors Village Hall CLOSED
n/m n/m n/m n/m n/m n/m
Three Rivers Rickmansworth CLOSED
n/m No Data 0
n/m n/m n/m
Three Rivers Rickmansworth Road CLOSED
n/m No Data 0
n/m n/m n/m
Thurrock AURN
n/m 0.4
10.1
n/m n/m n/m
Tonbridge & Malling Wateringbury Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Tonbridge Roadside 2 CLOSED
n/m No Data 0
n/m n/m n/m
Tonbridge Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Tunbridge Wells A26 Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Tunbridge Wells Southborough CLOSED
n/m No Data 0
n/m n/m n/m
Tunbridge Wells Town Centre CLOSED
n/m No Data 0
n/m n/m n/m
Walsall Woodlands AURN
n/m No Data 0
n/m n/m n/m
Warrington AURN
n/m No Data 0
n/m n/m n/m
Warrington Chester Road
n/m 1.6
17.2
n/m n/m n/m
Warrington Old Liverpool Road
n/m 0.9
4.8
n/m n/m n/m
Warrington Parker St
n/m 1.2
10.0
n/m n/m n/m
Warrington Sankey Way
n/m 1.2
4.8
n/m n/m n/m
Watford Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Watford Town Hall CLOSED
n/m No Data 0
n/m n/m n/m
Watford Town Hall CLOSED
n/m No Data 0
n/m n/m n/m
Welwyn Hatfield CLOSED
n/m No Data 0
n/m n/m n/m
Welwyn Hatfield Great North Road CLOSED
n/m n/m n/m n/m n/m n/m
West Bromwich Kenrick Park AURN
n/m No Data 0
n/m n/m n/m
Weybourne AURN
n/m n/m n/m n/m n/m n/m
Widnes Marzahn Way CLOSED
n/m No Data 0
n/m n/m n/m
Widnes Milton Road AURN
n/m 1.1
8.6
n/m n/m n/m
Wigston Blaby Road
n/m 2.2
11.5
n/m n/m n/m
Winchester Background CLOSED
n/m No Data 0
n/m n/m n/m
Winchester Chesil Street CLOSED
n/m 25.3
80.8
n/m n/m n/m
Winchester Roadside CLOSED
n/m No Data 0
n/m n/m n/m
Winchester Romsey Road
n/m 4.1
16.7
n/m n/m n/m
Winchester St Georges Street
n/m No Data 0
n/m n/m n/m
Wirral Tranmere AURN
n/m 0.5
2.1
n/m n/m n/m
Wolverhampton Penn Road
n/m 3.1
10.5
n/m n/m n/m
Wolverhampton St Peter's Square
n/m 1.2
7.6
n/m n/m n/m
Wolverhampton Stafford Road CLOSED
n/m 47.7
115.2
n/m n/m n/m
Wolverhampton Willenhall Road
n/m 0.6
1.4
n/m n/m n/m
Wrexham AURN
n/m 0.0
2.1
n/m n/m n/m
Wychbold
n/m 0.9
7.6
n/m n/m n/m
Wycombe Abbey 4 CLOSED
n/m No Data 0
n/m n/m n/m
Wycombe Abbey 5 CLOSED
n/m 4.0
17.0
n/m n/m n/m
Wycombe Abbey CLOSED
n/m No Data 0
n/m n/m n/m
Wycombe Hughenden CLOSED
n/m No Data 0
n/m n/m n/m
Wycombe Stokenchurch CLOSED
n/m 4.7
13.4
n/m n/m n/m
Wycombe West CLOSED
n/m No Data 0
n/m n/m n/m
York Bootham AURN
n/m 0.5
2.1
n/m n/m n/m
York Fishergate AURN
n/m 0.7
2.9
n/m n/m n/m

Monitoring site Hourly mean Nitrogen dioxide (µg/m³) Hourly mean Nitric oxide (µg/m³) Hourly mean oxides of Nitrogen (µg/m³) Max 15 min mean Sulphur dioxide (µg/m³) Running 24 Hour mean PM10 Particles (µg/m³) Running 24 Hour mean PM2.5 Particles (µg/m³)
Kings Lynn Southgates PM10
n/m n/m n/m n/m n/m n/m
North Lincs Santon FDMS CLOSED
n/m n/m n/m n/m n/m n/m
Swale Canterbury Road CLOSED
n/m No Data 0
n/m n/m n/m