Greater London Monitoring Data
Use the tabs below to explore information about the current and historic air pollution levels in this local authority.
You can select another local authority using the dropdown menu.
Use the map above to explore the monitoring sites in for this local authority and the surrounding area. The table below shows a summary of sites within this local authority - you can click on the site names to get more detailed information.
Active local authority funded monitoring sites
| Monitoring Site | Ozone (O3) |
Nitrogen Dioxide (NO2) |
Sulphur Dioxide (SO2) |
Particulate Matter (PM2.5) |
Particulate Matter (PM10) |
Highest Pollution Band | Last Updated |
|---|---|---|---|---|---|---|---|
| Barnet Chalgrove School | n/m | 5 (1 Low) | n/m | n/m | 14 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Barnet Tally Ho | n/m | 22 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Beech Street NOx | n/m | -1 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
11/03/2026 16:00 |
| Beech Street PM | n/m | n/m | n/m | n/m | 13 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Bell Wharf Lane | n/m | 36 (1 Low) | n/m | n/m | 16 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Brent Ikea | 58 (2 Low) | n/m | n/m | 9 (1 Low) | n/m | Low (Index 2) |
11/03/2026 16:00 |
| Bromley Harwood Avenue | n/m | 15 (1 Low) | n/m | 9 (1 Low) | 12 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Camden - Coopers Lane | n/m | n/m | n/m | 2 (1 Low) | 7 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Camden - Euston Road | n/m | 20 (1 Low) | n/m | 5 (1 Low) | 15 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Camden High Street | n/m | 18 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
11/03/2026 16:00 |
| Camden Kilburn | 69 (3 Low) | 8 (1 Low) | n/m | 5 (1 Low) | 13 (1 Low) | Low (Index 3) |
11/03/2026 16:00 |
| Ealing Acton Background (sensor) | n/m | n/a | n/m | n/a | n/a | No Data | 05/03/2026 24:00 |
| Ealing Elthorne Park High School (sensor) | n/m | 19 (1 Low) | n/m | 4 (1 Low) | 12 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Ealing Greenford Background (sensor) | n/m | 13 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Ealing Hanger Lane Gyratory | n/m | 19 (1 Low) | n/m | n/m | 22 (2 Low) | Low (Index 2) |
11/03/2026 16:00 |
| Ealing Havelock Primary School (sensor) | n/m | 22 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Ealing Horn Lane (LAQN) | n/m | 14 (1 Low) | n/m | n/m | 38 (3 Low) | Low (Index 3) |
11/03/2026 16:00 |
| Ealing John Perryn Primary School (sensor) | n/m | 32 (1 Low) | n/m | 4 (1 Low) | 8 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Ealing Khalsa Primary School (sensor) | n/m | 25 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Ealing Lady Margaret Primary School (sensor) | n/m | 28 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) | Low (Index 1) |
11/03/2026 07:00 |
| Ealing Northolt High School (sensor) | n/m | n/a | n/m | n/a | n/a | No Data | 06/03/2026 15:00 |
| Ealing Twyford CofE High School (sensor) | n/m | 36 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Ealing Western Avenue | n/m | 19 (1 Low) | n/m | n/m | 20 (2 Low) | Low (Index 2) |
11/03/2026 16:00 |
| Ealing William Perkin CofE School (sensor) | n/m | 15 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Fulham Town Centre | 72 (3 Low) | 14 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) | Low (Index 3) |
11/03/2026 16:00 |
| Greenwich Westhorne Avenue | 68 (3 Low) | n/m | n/m | n/m | n/m | Low (Index 3) |
11/03/2026 16:00 |
| Greenwich Woolwich Flyover | 47 (2 Low) | n/m | n/m | 7 (1 Low) | n/m | Low (Index 2) |
11/03/2026 16:00 |
| Guildhall | 66 (2 Low) | n/m | n/m | n/m | n/m | Low (Index 2) |
11/03/2026 16:00 |
| Hackney Amhurst Road | n/m | -1 (1 Low) | n/m | n/m | 14 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Hackney Dalston Lane | n/m | 10 (1 Low) | n/m | n/m | 17 (2 Low) | Low (Index 2) |
11/03/2026 15:00 |
| Hackney Graham Road | n/m | 19 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Hackney Green Lanes | n/m | 5 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
11/03/2026 16:00 |
| Hackney Homerton Library | n/m | 16 (1 Low) | n/m | n/m | 18 (2 Low) | Low (Index 2) |
11/03/2026 16:00 |
| Hackney Northwold Road | n/m | 17 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Hackney Old Street | 43 (2 Low) | 42 (1 Low) | n/m | 10 (1 Low) | 16 (1 Low) | Low (Index 2) |
11/03/2026 16:00 |
| Hammersmith Town Centre | 72 (3 Low) | 10 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) | Low (Index 3) |
11/03/2026 16:00 |
| Haringey Wood Green | n/m | 29 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Heathrow Bath Road | n/m | 30 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Heathrow Green Gates | n/m | 11 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Heathrow LHR2 | n/m | 8 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) | Low (Index 1) |
11/03/2026 15:00 |
| Hillingdon Harmondsworth | n/m | 4 (1 Low) | n/m | n/m | 11 (1 Low) | Low (Index 1) |
11/03/2026 14:00 |
| Hillingdon Harmondsworth Osiris | n/m | n/m | n/m | 7 (1 Low) | 16 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Hillingdon Hayes | n/m | 9 (1 Low) | n/m | n/m | 17 (2 Low) | Low (Index 2) |
11/03/2026 16:00 |
| Hillingdon Oxford Avenue | n/m | 28 (1 Low) | n/m | n/m | 22 (2 Low) | Low (Index 2) |
11/03/2026 16:00 |
| Hillingdon Sipson | n/m | 12 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
11/03/2026 16:00 |
| Hillingdon South Ruislip | n/m | 5 (1 Low) | n/m | n/m | 17 (2 Low) | Low (Index 2) |
11/03/2026 16:00 |
| Hounslow Brentford | n/m | 21 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
11/03/2026 15:00 |
| Hounslow Chiswick | n/m | 12 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
11/03/2026 15:00 |
| Hounslow Feltham | n/m | 16 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
11/03/2026 16:00 |
| Hounslow Gunnersbury | n/m | 21 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
11/03/2026 16:00 |
| Hounslow Hatton Cross | n/m | 22 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Hounslow Heston | n/m | 19 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
11/03/2026 16:00 |
| Kingston Upon Thames Cromwell Road | n/m | 21 (1 Low) | n/m | n/m | 24 (2 Low) | Low (Index 2) |
11/03/2026 16:00 |
| Kingston Upon Thames Kingston Vale | n/m | 7 (1 Low) | n/m | n/m | 15 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Kingston Upon Thames Tolworth Broadway | n/m | 14 (1 Low) | n/m | 4 (1 Low) | n/m | Low (Index 1) |
11/03/2026 15:00 |
| London City Airport KGV House | n/m | 14 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| London City Airport Newham Dockside | n/m | 11 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
11/03/2026 16:00 |
| Newham Cam Road | n/m | 6 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Newham East Ham Town Hall | n/m | 17 (1 Low) | n/m | 9 (1 Low) | n/m | Low (Index 1) |
11/03/2026 16:00 |
| Newham Wren Close | n/m | 9 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| RBKC Chelsea Old Town Hall | n/m | 6 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
11/03/2026 16:00 |
| RBKC Cromwell Road | 50 (2 Low) | 28 (1 Low) | n/m | 4 (1 Low) | 15 (1 Low) | Low (Index 2) |
11/03/2026 16:00 |
| RBKC Earl's Court Road | n/m | 14 (1 Low) | n/m | n/m | 15 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| RBKC Knightsbridge | n/m | 10 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
11/03/2026 16:00 |
| Redbridge Gardner Close | n/m | 5 (1 Low) | n/m | n/m | 16 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Redbridge Ley Street | 69 (3 Low) | 5 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) | Low (Index 3) |
11/03/2026 16:00 |
| Riverwalk | n/a | n/a | n/m | n/a | n/a | No Data | 04/03/2026 03:00 |
| Sands End | 66 (2 Low) | 13 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) | Low (Index 2) |
11/03/2026 16:00 |
| Shepherds Bush Town Centre | n/m | 26 (1 Low) | n/m | n/a | 15 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Southwark A2 Old Kent Road (FIDAS) | n/m | n/m | n/m | 5 (1 Low) | 11 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Southwark Elephant and Castle | 80 (3 Low) | 6 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) | Low (Index 3) |
11/03/2026 16:00 |
| Southwark Lower Road | n/m | 8 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Southwark South Circular Road | n/m | 32 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Southwark Tower Bridge Road | n/m | 16 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Southwark Vicarage Grove | n/m | 42 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Sutton Beddington Lane north | n/m | 13 (1 Low) | n/m | 6 (1 Low) | 17 (2 Low) | Low (Index 2) |
11/03/2026 16:00 |
| Sutton Beddington Village | n/m | 5 (1 Low) | n/m | n/m | 15 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Sutton Wallington | n/m | n/a | n/m | n/m | n/a | No Data | 21/06/2024 17:00 |
| Sutton Worcester Park | n/m | 9 (1 Low) | n/m | n/m | 13 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| The Aldgate School | n/m | 18 (1 Low) | n/m | 8 (1 Low) | 16 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Tower Hamlets - Blackwall | 58 (2 Low) | 21 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) | Low (Index 2) |
11/03/2026 16:00 |
| Waltham Forest Crooked Billet | n/m | 18 (1 Low) | n/m | n/m | 25 (2 Low) | Low (Index 2) |
11/03/2026 16:00 |
| Waltham Forest Dawlish Rd | n/m | 11 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) | Low (Index 1) |
11/03/2026 15:00 |
| Waltham Forest Leyton | n/m | 5 (1 Low) | n/m | n/m | 11 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| Wormwood Scrubs | 70 (3 Low) | 13 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) | Low (Index 3) |
11/03/2026 16:00 |
| Camden Kerbside (Swiss Cottage) | n/m | 7 (1 Low) | n/m | 9 (1 Low) | 17 (2 Low) | Low (Index 2) |
11/03/2026 16:00 |
| Ealing Horn Lane | n/m | n/m | n/m | n/m | 35 (3 Low) | Low (Index 3) |
11/03/2026 16:00 |
| Haringey Roadside | n/m | 14 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
11/03/2026 16:00 |
| London A406 N Circular | n/m | n/m | n/m | 6 (1 Low) | n/m | Low (Index 1) |
11/03/2026 16:00 |
| London Bexley | n/m | 8 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| London Bloomsbury | 60 (2 Low) | 30 (1 Low) | 2 (1 Low) | 6 (1 Low) | 11 (1 Low) | Low (Index 2) |
11/03/2026 16:00 |
| London Farringdon Street | n/m | 24 (1 Low) | n/m | 7 (1 Low) | n/m | Low (Index 1) |
11/03/2026 16:00 |
| London Haringey Priory Park South | 75 (3 Low) | 5 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) | Low (Index 3) |
11/03/2026 16:00 |
| London Harlington | 72 (3 Low) | 6 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) | Low (Index 3) |
11/03/2026 16:00 |
| London Hillingdon | 64 (2 Low) | 7 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) | Low (Index 2) |
11/03/2026 16:00 |
| London Honor Oak Park | 77 (3 Low) | n/m | n/m | 5 (1 Low) | 9 (1 Low) | Low (Index 3) |
11/03/2026 16:00 |
| London Marylebone Road | n/a | n/a | n/a | 22 (2 Low) | 17 (2 Low) | Low (Index 2) |
11/03/2026 16:00 |
| London N. Kensington (RBKC North Kensington) | 74 (3 Low) | 6 (1 Low) | 2 (1 Low) | 5 (1 Low) | 9 (1 Low) | Low (Index 3) |
11/03/2026 16:00 |
| London Norbury Manor School | n/m | n/m | n/m | 5 (1 Low) | 9 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| London Teddington Bushy Park | n/m | n/m | n/m | 5 (1 Low) | 10 (1 Low) | Low (Index 1) |
11/03/2026 16:00 |
| London Westminster | 64 (2 Low) | 16 (1 Low) | n/m | n/a | n/m | Low (Index 2) |
11/03/2026 16:00 |
| Southwark A2 Old Kent Road | n/m | 8 (1 Low) | n/m | n/m | n/a | Low (Index 1) |
11/03/2026 16:00 |
» Visit the Defra UK-AIR website for details of Defra funded AURN monitoring sites
Closed local authority funded monitoring sites
The following monitoring sites are no longer active in this local authority, but you can still access information about them by clicking on their names below.
Overall Pollution Summary:
LOW ( Index 3)
LOW ( Index 3)
| Very High | 10 |
| High | 9 |
| 8 | |
| 7 | |
| Moderate | 6 |
| 5 | |
| 4 | |
| Low | 3 |
| 2 | |
| 1 |
Guide to map markers:
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