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 | 13 (1 Low) | n/m | n/m | 25 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| Barnet Tally Ho | n/m | 32 (1 Low) | n/m | 21 (2 Low) | 32 (2 Low) | Low (Index 2) |
20/03/2026 15:00 |
| Beech Street NOx | n/m | 41 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
20/03/2026 15:00 |
| Beech Street PM | n/m | n/m | n/m | n/m | 38 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Bell Wharf Lane | n/m | 22 (1 Low) | n/m | n/m | 34 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| Brent Ikea | n/a | n/m | n/m | 25 (3 Low) | n/m | Low (Index 3) |
20/03/2026 14:00 |
| Bromley Harwood Avenue | n/m | 17 (1 Low) | n/m | 26 (3 Low) | n/a | Low (Index 3) |
20/03/2026 14:00 |
| Camden - Coopers Lane | n/m | n/m | n/m | 19 (2 Low) | 27 (2 Low) | Low (Index 2) |
20/03/2026 15:00 |
| Camden - Euston Road | n/m | 55 (1 Low) | n/m | 24 (3 Low) | 39 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| Camden High Street | n/m | 16 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
20/03/2026 15:00 |
| Camden Kilburn | 49 (2 Low) | 26 (1 Low) | n/m | 24 (3 Low) | 35 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| 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 | 39 (1 Low) | n/m | 21 (2 Low) | 28 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| Ealing Greenford Background (sensor) | n/m | 38 (1 Low) | n/m | 23 (2 Low) | 35 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Ealing Hanger Lane Gyratory | n/m | 22 (1 Low) | n/m | n/m | 32 (2 Low) | Low (Index 2) |
20/03/2026 15:00 |
| Ealing Havelock Primary School (sensor) | n/m | 43 (1 Low) | n/m | 27 (3 Low) | 41 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Ealing Horn Lane (LAQN) | n/m | 24 (1 Low) | n/m | n/m | 44 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Ealing John Perryn Primary School (sensor) | n/m | 50 (1 Low) | n/m | 20 (2 Low) | 30 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| Ealing Khalsa Primary School (sensor) | n/m | 52 (1 Low) | n/m | 24 (3 Low) | 37 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Ealing Lady Margaret Primary School (sensor) | n/m | 36 (1 Low) | n/m | 23 (2 Low) | 34 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| 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 | 43 (1 Low) | n/m | 23 (2 Low) | 35 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Ealing Western Avenue | n/m | 20 (1 Low) | n/m | n/m | 38 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| Ealing William Perkin CofE School (sensor) | n/m | 43 (1 Low) | n/m | 20 (2 Low) | 32 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| Fulham Town Centre | 45 (2 Low) | 32 (1 Low) | n/m | 22 (2 Low) | 31 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| Greenwich Westhorne Avenue | 32 (1 Low) | n/m | n/m | n/m | n/m | Low (Index 1) |
20/03/2026 15:00 |
| Greenwich Woolwich Flyover | 29 (1 Low) | n/m | n/m | 24 (3 Low) | n/m | Low (Index 3) |
20/03/2026 14:00 |
| Guildhall | 52 (2 Low) | n/m | n/m | n/m | n/m | Low (Index 2) |
20/03/2026 15:00 |
| Hackney Amhurst Road | n/m | 6 (1 Low) | n/m | n/m | 36 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| Hackney Dalston Lane | n/m | 30 (1 Low) | n/m | n/m | 36 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Hackney Graham Road | n/m | 22 (1 Low) | n/m | 23 (2 Low) | 32 (2 Low) | Low (Index 2) |
20/03/2026 15:00 |
| Hackney Green Lanes | n/m | 6 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
20/03/2026 15:00 |
| Hackney Homerton Library | n/m | 25 (1 Low) | n/m | n/m | 44 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Hackney Northwold Road | n/m | 28 (1 Low) | n/m | 25 (3 Low) | 36 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Hackney Old Street | 42 (2 Low) | 28 (1 Low) | n/m | 24 (3 Low) | 34 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| Hammersmith Town Centre | 55 (2 Low) | 57 (1 Low) | n/m | 23 (2 Low) | 34 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| Haringey Wood Green | n/m | 36 (1 Low) | n/m | 16 (2 Low) | 22 (2 Low) | Low (Index 2) |
20/03/2026 15:00 |
| Heathrow Bath Road | n/m | 42 (1 Low) | n/m | 23 (2 Low) | 34 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| Heathrow Green Gates | n/m | 18 (1 Low) | n/m | 21 (2 Low) | 31 (2 Low) | Low (Index 2) |
20/03/2026 15:00 |
| Heathrow LHR2 | n/m | 36 (1 Low) | n/m | 25 (3 Low) | 38 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| Hillingdon Harmondsworth | n/m | 13 (1 Low) | n/m | n/m | 25 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| Hillingdon Harmondsworth Osiris | n/m | n/m | n/m | 7 (1 Low) | 18 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| Hillingdon Hayes | n/m | 31 (1 Low) | n/m | n/m | 48 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| Hillingdon Oxford Avenue | n/m | 17 (1 Low) | n/m | n/m | n/a | Low (Index 1) |
20/03/2026 14:00 |
| Hillingdon Sipson | n/m | 22 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
20/03/2026 15:00 |
| Hillingdon South Ruislip | n/m | 25 (1 Low) | n/m | n/m | 36 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| Hounslow Brentford | n/m | 35 (1 Low) | n/m | 2 (1 Low) | 8 (1 Low) | Low (Index 1) |
20/03/2026 15:00 |
| Hounslow Chiswick | n/m | 30 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
20/03/2026 11:00 |
| Hounslow Feltham | n/m | 27 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
20/03/2026 15:00 |
| Hounslow Gunnersbury | n/m | 17 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
20/03/2026 15:00 |
| Hounslow Hatton Cross | n/m | 27 (1 Low) | n/m | 23 (2 Low) | 35 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| Hounslow Heston | n/m | 26 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
20/03/2026 15:00 |
| Kingston Upon Thames Cromwell Road | n/m | 27 (1 Low) | n/m | n/m | 50 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Kingston Upon Thames Kingston Vale | n/m | 24 (1 Low) | n/m | n/m | 34 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Kingston Upon Thames Tolworth Broadway | n/m | 28 (1 Low) | n/m | 24 (3 Low) | n/m | Low (Index 3) |
20/03/2026 14:00 |
| London City Airport KGV House | n/m | 15 (1 Low) | n/m | 24 (3 Low) | 34 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| London City Airport Newham Dockside | n/m | 13 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
20/03/2026 14:00 |
| Newham Cam Road | n/m | 12 (1 Low) | n/m | 25 (3 Low) | 30 (2 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Newham East Ham Town Hall | n/m | 17 (1 Low) | n/m | 25 (3 Low) | n/m | Low (Index 3) |
20/03/2026 14:00 |
| Newham Wren Close | n/m | n/a | n/m | 24 (3 Low) | 32 (2 Low) | Low (Index 3) |
20/03/2026 14:00 |
| RBKC Chelsea Old Town Hall | n/m | 27 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
20/03/2026 15:00 |
| RBKC Cromwell Road | 40 (2 Low) | 35 (1 Low) | n/m | 18 (2 Low) | 30 (2 Low) | Low (Index 2) |
20/03/2026 15:00 |
| RBKC Earl's Court Road | n/m | 34 (1 Low) | n/m | n/m | 34 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| RBKC Knightsbridge | n/m | 57 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
20/03/2026 15:00 |
| Redbridge Gardner Close | n/m | 14 (1 Low) | n/m | n/m | 29 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| Redbridge Ley Street | 32 (1 Low) | 12 (1 Low) | n/m | 22 (2 Low) | 25 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| Riverwalk | 39 (2 Low) | 20 (1 Low) | n/m | 23 (2 Low) | 31 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| Sands End | 52 (2 Low) | 26 (1 Low) | n/m | 23 (2 Low) | 33 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| Shepherds Bush Town Centre | n/m | 14 (1 Low) | n/m | 20 (2 Low) | 30 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| Southwark A2 Old Kent Road (FIDAS) | n/m | n/m | n/m | 27 (3 Low) | 42 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Southwark Elephant and Castle | 36 (2 Low) | 16 (1 Low) | n/m | 23 (2 Low) | 32 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| Southwark Lower Road | n/m | 21 (1 Low) | n/m | 24 (3 Low) | 34 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Southwark South Circular Road | n/m | 27 (1 Low) | n/m | 23 (2 Low) | 33 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| Southwark Tower Bridge Road | n/m | 34 (1 Low) | n/m | 25 (3 Low) | 36 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Southwark Vicarage Grove | n/m | 46 (1 Low) | n/m | 27 (3 Low) | 38 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Sutton Beddington Lane north | n/m | 15 (1 Low) | n/m | 23 (2 Low) | 31 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| Sutton Beddington Village | n/m | 24 (1 Low) | n/m | n/m | 40 (3 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Sutton Wallington | n/m | n/a | n/m | n/m | n/a | No Data | 21/06/2024 17:00 |
| Sutton Worcester Park | n/m | 17 (1 Low) | n/m | n/m | 33 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| The Aldgate School | n/m | 16 (1 Low) | n/m | 24 (3 Low) | 28 (2 Low) | Low (Index 3) |
20/03/2026 14:00 |
| Tower Hamlets - Blackwall | 29 (1 Low) | 29 (1 Low) | n/m | 32 (3 Low) | 40 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| Waltham Forest Crooked Billet | n/m | 44 (1 Low) | n/m | n/m | 45 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| Waltham Forest Dawlish Rd | n/m | 21 (1 Low) | n/m | 23 (2 Low) | 27 (2 Low) | Low (Index 2) |
20/03/2026 10:00 |
| Waltham Forest Leyton | n/m | 9 (1 Low) | n/m | n/m | 31 (2 Low) | Low (Index 2) |
20/03/2026 15:00 |
| Wormwood Scrubs | 40 (2 Low) | 21 (1 Low) | n/m | 22 (2 Low) | 31 (2 Low) | Low (Index 2) |
20/03/2026 14:00 |
| Camden Kerbside (Swiss Cottage) | n/m | 20 (1 Low) | n/m | 24 (3 Low) | 36 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| Ealing Horn Lane | n/m | n/m | n/m | n/m | 45 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| Haringey Roadside | n/m | 17 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
20/03/2026 15:00 |
| London A406 N Circular | n/m | n/m | n/m | 23 (2 Low) | n/m | Low (Index 2) |
20/03/2026 15:00 |
| London Bexley | n/m | 15 (1 Low) | n/m | 25 (3 Low) | 34 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| London Bloomsbury | 41 (2 Low) | 29 (1 Low) | 1 (1 Low) | 23 (2 Low) | 31 (2 Low) | Low (Index 2) |
20/03/2026 15:00 |
| London Farringdon Street | n/m | 26 (1 Low) | n/m | 27 (3 Low) | n/m | Low (Index 3) |
20/03/2026 15:00 |
| London Haringey Priory Park South | 48 (2 Low) | 12 (1 Low) | n/m | 21 (2 Low) | 27 (2 Low) | Low (Index 2) |
20/03/2026 15:00 |
| London Harlington | 45 (2 Low) | 32 (1 Low) | n/m | 21 (2 Low) | 32 (2 Low) | Low (Index 2) |
20/03/2026 15:00 |
| London Hillingdon | 55 (2 Low) | 16 (1 Low) | n/m | 25 (3 Low) | 37 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| London Honor Oak Park | 53 (2 Low) | n/m | n/m | 23 (2 Low) | 31 (2 Low) | Low (Index 2) |
20/03/2026 15:00 |
| London Marylebone Road | 47 (2 Low) | 27 (1 Low) | 1 (1 Low) | 24 (3 Low) | 31 (2 Low) | Low (Index 3) |
20/03/2026 15:00 |
| London N. Kensington (RBKC North Kensington) | 53 (2 Low) | 10 (1 Low) | 1 (1 Low) | 21 (2 Low) | 29 (2 Low) | Low (Index 2) |
20/03/2026 15:00 |
| London Norbury Manor School | n/m | n/m | n/m | 25 (3 Low) | 33 (2 Low) | Low (Index 3) |
20/03/2026 15:00 |
| London Teddington Bushy Park | n/m | n/m | n/m | 23 (2 Low) | 35 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
| London Westminster | 41 (2 Low) | 23 (1 Low) | n/m | n/a | n/m | Low (Index 2) |
20/03/2026 15:00 |
| Southwark A2 Old Kent Road | n/m | 32 (1 Low) | n/m | n/m | 43 (3 Low) | Low (Index 3) |
20/03/2026 15:00 |
» 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.
LOW ( Index 3)
| 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 »
