Greater London Monitoring Data
Use the tabs below to explore information about the current and historic air pollution levels in this local authority.
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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 | 56 (1 Low) | n/m | n/m | 12 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Barnet Tally Ho | n/m | 72 (2 Low) | n/m | 7 (1 Low) | 13 (1 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Beech Street NOx | n/m | 54 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
04/01/2026 21:00 |
| Beech Street PM | n/m | n/m | n/m | n/m | 14 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Bell Wharf Lane | n/m | 52 (1 Low) | n/m | n/m | 27 (2 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Brent Ikea | 27 (1 Low) | n/m | n/m | 10 (1 Low) | n/m | Low (Index 1) |
04/01/2026 20:00 |
| Camden - Coopers Lane | n/m | n/m | n/m | 5 (1 Low) | 8 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Camden - Euston Road | n/m | 64 (1 Low) | n/m | 8 (1 Low) | 22 (2 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Camden High Street | n/m | 46 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
04/01/2026 21:00 |
| Ealing Acton Background (sensor) | n/m | 52 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) | Low (Index 1) |
04/01/2026 14:00 |
| Ealing Elthorne Park High School (sensor) | n/m | 57 (1 Low) | n/m | 7 (1 Low) | 31 (2 Low) | Low (Index 2) |
04/01/2026 03:00 |
| Ealing Greenford Background (sensor) | n/m | 51 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Ealing Havelock Primary School (sensor) | n/m | 62 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Ealing John Perryn Primary School (sensor) | n/m | 61 (1 Low) | n/m | 3 (1 Low) | 7 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Ealing Khalsa Primary School (sensor) | n/m | 50 (1 Low) | n/m | 4 (1 Low) | 10 (1 Low) | Low (Index 1) |
04/01/2026 08:00 |
| Ealing Lady Margaret Primary School (sensor) | n/m | 42 (1 Low) | n/m | 3 (1 Low) | 9 (1 Low) | Low (Index 1) |
04/01/2026 07:00 |
| Ealing Northolt High School (sensor) | n/m | n/a | n/m | n/a | n/a | No Data | 17/11/2025 07:00 |
| Ealing Twyford CofE High School (sensor) | n/m | 61 (1 Low) | n/m | 5 (1 Low) | 13 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Ealing William Perkin CofE School (sensor) | n/m | 57 (1 Low) | n/m | 4 (1 Low) | 9 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Fulham Town Centre | 37 (2 Low) | 42 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Greenwich Westhorne Avenue | 29 (1 Low) | n/m | n/m | n/m | n/m | Low (Index 1) |
04/01/2026 21:00 |
| Greenwich Woolwich Flyover | 19 (1 Low) | n/m | n/m | 11 (1 Low) | n/m | Low (Index 1) |
04/01/2026 20:00 |
| Guildhall | 46 (2 Low) | n/m | n/m | n/m | n/m | Low (Index 2) |
04/01/2026 21:00 |
| Hackney Amhurst Road | n/m | 20 (1 Low) | n/m | n/m | 13 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Hackney Dalston Lane | n/m | 69 (2 Low) | n/m | n/m | 15 (1 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Hackney Graham Road | n/m | 80 (2 Low) | n/m | 6 (1 Low) | 13 (1 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Hackney Green Lanes | n/m | 60 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
04/01/2026 21:00 |
| Hackney Homerton Library | n/m | 51 (1 Low) | n/m | n/m | n/a | Low (Index 1) |
04/01/2026 21:00 |
| Hackney Northwold Road | n/m | 54 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Hackney Old Street | 21 (1 Low) | 59 (1 Low) | n/m | 12 (2 Low) | 20 (2 Low) | Low (Index 2) |
04/01/2026 22:00 |
| Hammersmith Town Centre | 30 (1 Low) | 51 (1 Low) | n/m | 8 (1 Low) | 18 (2 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Haringey Wood Green | n/m | 46 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Heathrow Bath Road | n/m | 88 (2 Low) | n/m | 5 (1 Low) | 10 (1 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Heathrow Green Gates | n/m | 46 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Heathrow LHR2 | n/m | 97 (2 Low) | n/m | 5 (1 Low) | 9 (1 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Hillingdon Harmondsworth | n/m | 17 (1 Low) | n/m | n/m | 8 (1 Low) | Low (Index 1) |
04/01/2026 14:00 |
| Hillingdon Harmondsworth Osiris | n/m | n/m | n/m | 3 (1 Low) | 5 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Hillingdon Hayes | n/m | 88 (2 Low) | n/m | n/m | 11 (1 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Hillingdon Oxford Avenue | n/m | 90 (2 Low) | n/m | n/m | 13 (1 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Hillingdon Sipson | n/m | 57 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
04/01/2026 21:00 |
| Hillingdon South Ruislip | n/m | 53 (1 Low) | n/m | n/m | 16 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Hounslow Brentford | n/m | 47 (1 Low) | n/m | 2 (1 Low) | 11 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Hounslow Chiswick | n/m | 23 (1 Low) | n/m | 9 (1 Low) | 12 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Hounslow Feltham | n/m | 55 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
04/01/2026 21:00 |
| Hounslow Gunnersbury | n/m | 144 (3 Low) | n/m | n/a | n/a | Low (Index 3) |
04/01/2026 21:00 |
| Hounslow Hatton Cross | n/m | 51 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
04/01/2026 21:00 |
| Hounslow Heston | n/m | 45 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
04/01/2026 21:00 |
| Kingston Upon Thames Cromwell Road | n/m | 30 (1 Low) | n/m | n/m | 14 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Kingston Upon Thames Kingston Vale | n/m | 42 (1 Low) | n/m | n/m | 11 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Kingston Upon Thames Tolworth Broadway | n/m | 36 (1 Low) | n/m | 8 (1 Low) | n/m | Low (Index 1) |
04/01/2026 21:00 |
| Newham Cam Road | n/m | 41 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Newham East Ham Town Hall | n/m | 57 (1 Low) | n/m | 14 (2 Low) | n/m | Low (Index 2) |
04/01/2026 21:00 |
| Newham Wren Close | n/m | 39 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| RBKC Chelsea Old Town Hall | n/m | 43 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
04/01/2026 21:00 |
| RBKC Cromwell Road | 26 (1 Low) | 48 (1 Low) | n/m | 5 (1 Low) | n/a | Low (Index 1) |
04/01/2026 21:00 |
| RBKC Earl's Court Road | n/m | 40 (1 Low) | n/m | n/m | 69 (6 Moderate) | Moderate (Index 6) |
04/01/2026 21:00 |
| RBKC Knightsbridge | n/m | 41 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
04/01/2026 21:00 |
| Redbridge Gardner Close | n/m | 53 (1 Low) | n/m | n/m | 16 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Redbridge Ley Street | 45 (2 Low) | 39 (1 Low) | n/m | 7 (1 Low) | 8 (1 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Riverwalk | 38 (2 Low) | 48 (1 Low) | n/m | 6 (1 Low) | 9 (1 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Sands End | 45 (2 Low) | 32 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Shepherds Bush Town Centre | n/m | 61 (1 Low) | n/m | 8 (1 Low) | 16 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Southwark A2 Old Kent Road (FIDAS) | n/m | n/m | n/m | 6 (1 Low) | 11 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Southwark Elephant and Castle | 47 (2 Low) | 36 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Southwark Lower Road | n/m | n/a | n/m | 6 (1 Low) | 13 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Southwark South Circular Road | n/m | 57 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Southwark Tower Bridge Road | n/m | 64 (1 Low) | n/m | 7 (1 Low) | 16 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Southwark Vicarage Grove | n/m | 72 (2 Low) | n/m | 13 (2 Low) | 27 (2 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Sutton Beddington Lane north | n/m | 28 (1 Low) | n/m | 12 (2 Low) | 14 (1 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Sutton Beddington Village | n/m | 31 (1 Low) | n/m | n/m | 13 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Sutton Wallington | n/m | n/a | n/m | n/m | n/a | No Data | 21/06/2024 17:00 |
| Sutton Worcester Park | n/m | 51 (1 Low) | n/m | n/m | 12 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| The Aldgate School | n/m | 45 (1 Low) | n/m | 9 (1 Low) | 13 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Tower Hamlets - Blackwall | 36 (2 Low) | 48 (1 Low) | n/m | 6 (1 Low) | 26 (2 Low) | Low (Index 2) |
04/01/2026 18:00 |
| Waltham Forest Crooked Billet | n/m | 37 (1 Low) | n/m | n/m | 26 (2 Low) | Low (Index 2) |
04/01/2026 21:00 |
| Waltham Forest Dawlish Rd | n/m | 14 (1 Low) | n/m | 9 (1 Low) | 13 (1 Low) | Low (Index 1) |
04/01/2026 18:00 |
| Waltham Forest Leyton | n/m | 48 (1 Low) | n/m | n/m | 11 (1 Low) | Low (Index 1) |
04/01/2026 22:00 |
| Wormwood Scrubs | 33 (1 Low) | 56 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) | Low (Index 1) |
04/01/2026 21:00 |
| Camden Kerbside (Swiss Cottage) | n/m | 50 (1 Low) | n/m | 14 (2 Low) | 19 (2 Low) | Low (Index 2) |
05/01/2026 01:00 |
| Ealing Horn Lane | n/m | n/m | n/m | n/m | 16 (1 Low) | Low (Index 1) |
05/01/2026 01:00 |
| Haringey Roadside | n/m | 69 (2 Low) | n/m | n/m | n/m | Low (Index 2) |
05/01/2026 01:00 |
| London Bexley | n/m | 28 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) | Low (Index 1) |
05/01/2026 01:00 |
| London Bloomsbury | 22 (1 Low) | 38 (1 Low) | 2 (1 Low) | 6 (1 Low) | 10 (1 Low) | Low (Index 1) |
05/01/2026 01:00 |
| London Farringdon Street | n/m | 36 (1 Low) | n/m | 8 (1 Low) | n/m | Low (Index 1) |
05/01/2026 01:00 |
| London Haringey Priory Park South | 28 (1 Low) | 34 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) | Low (Index 1) |
05/01/2026 01:00 |
| London Harlington | n/a | n/a | n/m | n/a | n/a | No Data | 04/01/2026 21:00 |
| London Hillingdon | 7 (1 Low) | 53 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) | Low (Index 1) |
05/01/2026 01:00 |
| London Honor Oak Park | 43 (2 Low) | n/m | n/m | 6 (1 Low) | 9 (1 Low) | Low (Index 2) |
05/01/2026 01:00 |
| London Marylebone Road | 13 (1 Low) | 37 (1 Low) | 2 (1 Low) | 14 (2 Low) | 25 (2 Low) | Low (Index 2) |
05/01/2026 01:00 |
| London N. Kensington (RBKC North Kensington) | 26 (1 Low) | 37 (1 Low) | 1 (1 Low) | 7 (1 Low) | 10 (1 Low) | Low (Index 1) |
05/01/2026 01:00 |
| London Norbury Manor School | n/m | n/m | n/m | 6 (1 Low) | 9 (1 Low) | Low (Index 1) |
05/01/2026 01:00 |
| London Teddington Bushy Park | n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) | Low (Index 1) |
05/01/2026 01:00 |
| London Westminster | 31 (1 Low) | 26 (1 Low) | n/m | n/a | n/m | Low (Index 1) |
05/01/2026 01:00 |
| Southwark A2 Old Kent Road | n/m | 39 (1 Low) | n/m | n/m | 14 (1 Low) | Low (Index 1) |
05/01/2026 01:00 |
» 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:
MODERATE ( Index 6)
MODERATE ( Index 6)
| Very High | 10 |
| High | 9 |
| 8 | |
| 7 | |
| Moderate | 6 |
| 5 | |
| 4 | |
| Low | 3 |
| 2 | |
| 1 |
Guide to map markers:
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