Greater London Monitoring Data
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 | 3 (1 Low) | n/m | n/m | 26 (2 Low) | Low (Index 2) |
09/04/2026 21:00 |
| Barnet Tally Ho | n/m | 13 (1 Low) | n/m | 12 (2 Low) | 23 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Beech Street NOx | n/m | 8 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
09/04/2026 20:00 |
| Beech Street PM | n/m | n/m | n/m | n/m | 20 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Bell Wharf Lane | n/m | 15 (1 Low) | n/m | n/m | 28 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Brent Ikea | 43 (2 Low) | n/m | n/m | n/a | n/m | Low (Index 2) |
09/04/2026 17:00 |
| Bromley Harwood Avenue | n/m | 10 (1 Low) | n/m | 13 (2 Low) | 21 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Camden - Coopers Lane | n/m | n/m | n/m | 7 (1 Low) | 10 (1 Low) | Low (Index 1) |
09/04/2026 20:00 |
| Camden - Euston Road | n/m | 26 (1 Low) | n/m | 12 (2 Low) | 28 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Camden High Street | n/m | 6 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
09/04/2026 20:00 |
| Camden Kilburn | 63 (2 Low) | 6 (1 Low) | n/m | 12 (2 Low) | 27 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Ealing Acton Background (sensor) | n/m | 19 (1 Low) | n/m | 9 (1 Low) | 19 (2 Low) | Low (Index 2) |
09/04/2026 21:00 |
| Ealing Elthorne Park High School (sensor) | n/m | 23 (1 Low) | n/m | 12 (2 Low) | 35 (3 Low) | Low (Index 3) |
09/04/2026 21:00 |
| Ealing Greenford Background (sensor) | n/m | 19 (1 Low) | n/m | 10 (1 Low) | 21 (2 Low) | Low (Index 2) |
09/04/2026 21:00 |
| Ealing Hanger Lane Gyratory | n/m | 13 (1 Low) | n/m | n/m | 41 (3 Low) | Low (Index 3) |
09/04/2026 21:00 |
| Ealing Havelock Primary School (sensor) | n/m | 23 (1 Low) | n/m | 9 (1 Low) | 19 (2 Low) | Low (Index 2) |
09/04/2026 21:00 |
| Ealing Horn Lane (LAQN) | n/m | 7 (1 Low) | n/m | n/m | 93 (9 High) | High (Index 9) |
09/04/2026 21:00 |
| Ealing John Perryn Primary School (sensor) | n/m | 30 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) | Low (Index 1) |
09/04/2026 21:00 |
| Ealing Khalsa Primary School (sensor) | n/m | 25 (1 Low) | n/m | 8 (1 Low) | 19 (2 Low) | Low (Index 2) |
09/04/2026 21:00 |
| Ealing Lady Margaret Primary School (sensor) | n/m | n/a | n/m | n/a | n/a | No Data | 08/04/2026 13:00 |
| 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 | 35 (1 Low) | n/m | 7 (1 Low) | 15 (1 Low) | Low (Index 1) |
09/04/2026 21:00 |
| Ealing Western Avenue | n/m | 11 (1 Low) | n/m | n/m | 45 (3 Low) | Low (Index 3) |
09/04/2026 21:00 |
| Ealing William Perkin CofE School (sensor) | n/m | 17 (1 Low) | n/m | 7 (1 Low) | 15 (1 Low) | Low (Index 1) |
09/04/2026 21:00 |
| Fulham Town Centre | 69 (3 Low) | 13 (1 Low) | n/m | 8 (1 Low) | 20 (2 Low) | Low (Index 3) |
09/04/2026 21:00 |
| Greenwich Westhorne Avenue | 55 (2 Low) | n/m | n/m | n/m | n/m | Low (Index 2) |
09/04/2026 14:00 |
| Greenwich Woolwich Flyover | 37 (2 Low) | n/m | n/m | 12 (2 Low) | n/m | Low (Index 2) |
09/04/2026 17:00 |
| Guildhall | 74 (3 Low) | n/m | n/m | n/m | n/m | Low (Index 3) |
09/04/2026 16:00 |
| Hackney Amhurst Road | n/m | 1 (1 Low) | n/m | n/m | 29 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Hackney Dalston Lane | n/m | 25 (1 Low) | n/m | n/m | 27 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Hackney Graham Road | n/m | 7 (1 Low) | n/m | 10 (1 Low) | 23 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Hackney Green Lanes | n/m | 3 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
09/04/2026 20:00 |
| Hackney Homerton Library | n/m | 18 (1 Low) | n/m | n/m | 34 (3 Low) | Low (Index 3) |
09/04/2026 20:00 |
| Hackney Northwold Road | n/m | 12 (1 Low) | n/m | 10 (1 Low) | 22 (2 Low) | Low (Index 2) |
09/04/2026 21:00 |
| Hackney Old Street | 47 (2 Low) | 30 (1 Low) | n/m | 13 (2 Low) | 24 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Hammersmith Town Centre | 69 (3 Low) | 7 (1 Low) | n/m | 8 (1 Low) | 21 (2 Low) | Low (Index 3) |
09/04/2026 20:00 |
| Haringey Wood Green | n/m | 24 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) | Low (Index 1) |
09/04/2026 20:00 |
| Heathrow Bath Road | n/m | 9 (1 Low) | n/m | 9 (1 Low) | 20 (2 Low) | Low (Index 2) |
09/04/2026 21:00 |
| Heathrow Green Gates | n/m | 9 (1 Low) | n/m | 9 (1 Low) | 20 (2 Low) | Low (Index 2) |
09/04/2026 21:00 |
| Heathrow LHR2 | n/m | 8 (1 Low) | n/m | 10 (1 Low) | 23 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Hillingdon Harmondsworth | n/m | 8 (1 Low) | n/m | n/m | 19 (2 Low) | Low (Index 2) |
09/04/2026 13:00 |
| Hillingdon Harmondsworth Osiris | n/m | n/m | n/m | 7 (1 Low) | 26 (2 Low) | Low (Index 2) |
09/04/2026 21:00 |
| Hillingdon Hayes | n/m | 6 (1 Low) | n/m | n/m | 34 (3 Low) | Low (Index 3) |
09/04/2026 20:00 |
| Hillingdon Oxford Avenue | n/m | 3 (1 Low) | n/m | n/m | 23 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Hillingdon Sipson | n/m | 5 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
09/04/2026 20:00 |
| Hillingdon South Ruislip | n/m | 4 (1 Low) | n/m | n/m | 30 (2 Low) | Low (Index 2) |
09/04/2026 21:00 |
| Hounslow Brentford | n/m | 27 (1 Low) | n/m | 9 (1 Low) | 22 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Hounslow Chiswick | n/m | 22 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
09/04/2026 10:00 |
| Hounslow Feltham | n/m | 23 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
09/04/2026 20:00 |
| Hounslow Gunnersbury | n/m | 8 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
09/04/2026 20:00 |
| Hounslow Hatton Cross | n/m | 29 (1 Low) | n/m | 10 (1 Low) | 19 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Hounslow Heston | n/m | 10 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
09/04/2026 20:00 |
| Kingston Upon Thames Cromwell Road | n/m | 15 (1 Low) | n/m | n/m | 27 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Kingston Upon Thames Kingston Vale | n/m | 6 (1 Low) | n/m | n/m | 24 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Kingston Upon Thames Tolworth Broadway | n/m | 9 (1 Low) | n/m | 14 (2 Low) | n/m | Low (Index 2) |
09/04/2026 20:00 |
| London City Airport KGV House | n/m | 8 (1 Low) | n/m | 9 (1 Low) | 22 (2 Low) | Low (Index 2) |
09/04/2026 21:00 |
| London City Airport Newham Dockside | n/m | 5 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
09/04/2026 20:00 |
| Newham Cam Road | n/m | 7 (1 Low) | n/m | 11 (1 Low) | 21 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Newham East Ham Town Hall | n/m | 16 (1 Low) | n/m | 14 (2 Low) | n/m | Low (Index 2) |
09/04/2026 20:00 |
| Newham Wren Close | n/m | 7 (1 Low) | n/m | 11 (1 Low) | 23 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| RBKC Chelsea Old Town Hall | n/m | 5 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
09/04/2026 20:00 |
| RBKC Cromwell Road | 51 (2 Low) | 10 (1 Low) | n/m | 6 (1 Low) | 23 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| RBKC Earl's Court Road | n/m | 13 (1 Low) | n/m | n/m | 34 (3 Low) | Low (Index 3) |
09/04/2026 20:00 |
| RBKC Knightsbridge | n/m | 3 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
09/04/2026 20:00 |
| Redbridge Gardner Close | n/m | 3 (1 Low) | n/m | n/m | 25 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Redbridge Ley Street | 72 (3 Low) | 4 (1 Low) | n/m | 13 (2 Low) | 23 (2 Low) | Low (Index 3) |
09/04/2026 20:00 |
| Riverwalk | 70 (3 Low) | 5 (1 Low) | n/m | 7 (1 Low) | 15 (1 Low) | Low (Index 3) |
09/04/2026 21:00 |
| Sands End | 83 (3 Low) | 9 (1 Low) | n/m | 7 (1 Low) | 18 (2 Low) | Low (Index 3) |
09/04/2026 21:00 |
| Shepherds Bush Town Centre | n/m | 25 (1 Low) | n/m | 12 (2 Low) | 29 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Southwark A2 Old Kent Road (FIDAS) | n/m | n/m | n/m | 9 (1 Low) | 26 (2 Low) | Low (Index 2) |
09/04/2026 21:00 |
| Southwark Elephant and Castle | 78 (3 Low) | 6 (1 Low) | n/m | 8 (1 Low) | 17 (2 Low) | Low (Index 3) |
09/04/2026 21:00 |
| Southwark Lower Road | n/m | 12 (1 Low) | n/m | 8 (1 Low) | 20 (2 Low) | Low (Index 2) |
09/04/2026 21:00 |
| Southwark South Circular Road | n/m | 19 (1 Low) | n/m | 7 (1 Low) | 16 (1 Low) | Low (Index 1) |
09/04/2026 21:00 |
| Southwark Tower Bridge Road | n/m | n/a | n/m | n/a | n/a | No Data | 20/03/2026 17:00 |
| Southwark Vicarage Grove | n/m | 35 (1 Low) | n/m | 11 (1 Low) | 24 (2 Low) | Low (Index 2) |
09/04/2026 21:00 |
| Sutton Beddington Lane north | n/m | 6 (1 Low) | n/m | 10 (1 Low) | 26 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Sutton Beddington Village | n/m | 6 (1 Low) | n/m | n/m | 22 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Sutton Wallington | n/m | n/a | n/m | n/m | n/a | No Data | 21/06/2024 17:00 |
| Sutton Worcester Park | n/m | 11 (1 Low) | n/m | n/m | 20 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| The Aldgate School | n/m | 10 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
09/04/2026 20:00 |
| Tower Hamlets - Blackwall | 57 (2 Low) | 20 (1 Low) | n/m | 16 (2 Low) | 25 (2 Low) | Low (Index 2) |
09/04/2026 17:00 |
| Waltham Forest Crooked Billet | n/m | 18 (1 Low) | n/m | n/m | 44 (3 Low) | Low (Index 3) |
09/04/2026 21:00 |
| Waltham Forest Dawlish Rd | n/m | 7 (1 Low) | n/m | 16 (2 Low) | 27 (2 Low) | Low (Index 2) |
09/04/2026 18:00 |
| Waltham Forest Leyton | n/m | 11 (1 Low) | n/m | n/m | 27 (2 Low) | Low (Index 2) |
09/04/2026 20:00 |
| Wormwood Scrubs | 65 (2 Low) | 9 (1 Low) | n/m | 8 (1 Low) | 18 (2 Low) | Low (Index 2) |
09/04/2026 21:00 |
| Camden Kerbside (Swiss Cottage) | n/m | 36 (1 Low) | n/m | 10 (1 Low) | 23 (2 Low) | Low (Index 2) |
10/04/2026 09:00 |
| Ealing Horn Lane | n/m | n/m | n/m | n/m | 70 (6 Moderate) | Moderate (Index 6) |
10/04/2026 09:00 |
| Haringey Roadside | n/m | 22 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
10/04/2026 08:00 |
| London A406 N Circular | n/m | n/m | n/m | 6 (1 Low) | n/m | Low (Index 1) |
10/04/2026 09:00 |
| London Bexley | n/m | 19 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
10/04/2026 07:00 |
| London Bloomsbury | 66 (2 Low) | 15 (1 Low) | 2 (1 Low) | 6 (1 Low) | 15 (1 Low) | Low (Index 2) |
10/04/2026 09:00 |
| London Farringdon Street | n/m | 27 (1 Low) | n/m | 7 (1 Low) | n/m | Low (Index 1) |
10/04/2026 09:00 |
| London Haringey Priory Park South | 75 (3 Low) | 8 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) | Low (Index 3) |
10/04/2026 09:00 |
| London Harlington | n/a | n/a | n/m | n/a | n/a | No Data | 09/04/2026 21:00 |
| London Hillingdon | 70 (3 Low) | 22 (1 Low) | n/m | 6 (1 Low) | 15 (1 Low) | Low (Index 3) |
10/04/2026 09:00 |
| London Honor Oak Park | 82 (3 Low) | n/m | n/m | 5 (1 Low) | 12 (1 Low) | Low (Index 3) |
10/04/2026 09:00 |
| London Marylebone Road | 70 (3 Low) | 27 (1 Low) | 1 (1 Low) | 9 (1 Low) | 22 (2 Low) | Low (Index 3) |
10/04/2026 09:00 |
| London N. Kensington (RBKC North Kensington) | 71 (3 Low) | 10 (1 Low) | 0 (1 Low) | 5 (1 Low) | 12 (1 Low) | Low (Index 3) |
10/04/2026 09:00 |
| London Norbury Manor School | n/m | n/m | n/m | 5 (1 Low) | 12 (1 Low) | Low (Index 1) |
10/04/2026 09:00 |
| London Teddington Bushy Park | n/m | n/m | n/m | 5 (1 Low) | 15 (1 Low) | Low (Index 1) |
10/04/2026 09:00 |
| London Westminster | 67 (3 Low) | 13 (1 Low) | n/m | n/a | n/m | Low (Index 3) |
10/04/2026 09:00 |
| Southwark A2 Old Kent Road | n/m | 26 (1 Low) | n/m | n/m | 26 (2 Low) | Low (Index 2) |
10/04/2026 09:00 |
» 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.
HIGH ( Index 9)
| Very High | 10 |
| High | 9 |
| 8 | |
| 7 | |
| Moderate | 6 |
| 5 | |
| 4 | |
| Low | 3 |
| 2 | |
| 1 |
Guide to map markers:
Download uBreathe
The free app for iPhone, iPad & Android that gives you air pollution health advice - where and when you need it most
Find out more »
