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 | 15 (1 Low) | n/m | n/m | 18 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Barnet Tally Ho | n/m | 17 (1 Low) | n/m | 6 (1 Low) | 13 (1 Low) | Low (Index 1) |
08/12/2025 17:00 |
| Beech Street NOx | n/m | 54 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
08/12/2025 17:00 |
| Beech Street PM | n/m | n/m | n/m | n/m | 14 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Bell Wharf Lane | n/m | 45 (1 Low) | n/m | n/m | 17 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Brent Ikea | 35 (2 Low) | n/m | n/m | 9 (1 Low) | n/m | Low (Index 2) |
08/12/2025 15:00 |
| Camden - Coopers Lane | n/m | n/m | n/m | 0 (1 Low) | 5 (1 Low) | Low (Index 1) |
08/12/2025 17:00 |
| Camden - Euston Road | n/m | 51 (1 Low) | n/m | 6 (1 Low) | 15 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Camden High Street | n/m | 15 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
08/12/2025 17:00 |
| Ealing Acton Background (sensor) | n/m | 43 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Ealing Elthorne Park High School (sensor) | n/m | 55 (1 Low) | n/m | 8 (1 Low) | 40 (3 Low) | Low (Index 3) |
08/12/2025 16:00 |
| Ealing Greenford Background (sensor) | n/m | 64 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Ealing Havelock Primary School (sensor) | n/m | 54 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Ealing John Perryn Primary School (sensor) | n/m | 50 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Ealing Khalsa Primary School (sensor) | n/m | 54 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Ealing Lady Margaret Primary School (sensor) | n/m | 70 (2 Low) | n/m | 5 (1 Low) | 10 (1 Low) | Low (Index 2) |
08/12/2025 16:00 |
| 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 | 60 (1 Low) | n/m | 5 (1 Low) | 12 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Ealing William Perkin CofE School (sensor) | n/m | 66 (1 Low) | n/m | 5 (1 Low) | 10 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Fulham Town Centre | 59 (2 Low) | 30 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Greenwich Westhorne Avenue | 50 (2 Low) | n/m | n/m | n/m | n/m | Low (Index 2) |
08/12/2025 17:00 |
| Greenwich Woolwich Flyover | 36 (2 Low) | n/m | n/m | 11 (1 Low) | n/m | Low (Index 2) |
08/12/2025 16:00 |
| Guildhall | 48 (2 Low) | n/m | n/m | n/m | n/m | Low (Index 2) |
08/12/2025 17:00 |
| Hackney Amhurst Road | n/m | 21 (1 Low) | n/m | n/m | 17 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Hackney Dalston Lane | n/m | 56 (1 Low) | n/m | n/m | 22 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Hackney Graham Road | n/m | 34 (1 Low) | n/m | 7 (1 Low) | 13 (1 Low) | Low (Index 1) |
08/12/2025 17:00 |
| Hackney Green Lanes | n/m | 15 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
08/12/2025 16:00 |
| Hackney Homerton Library | n/m | 11 (1 Low) | n/m | n/m | 20 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Hackney Northwold Road | n/m | 25 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Hackney Old Street | 38 (2 Low) | 44 (1 Low) | n/m | 11 (1 Low) | 26 (2 Low) | Low (Index 2) |
08/12/2025 17:00 |
| Hammersmith Town Centre | 56 (2 Low) | 32 (1 Low) | n/m | 5 (1 Low) | 14 (1 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Haringey Wood Green | n/m | 32 (1 Low) | n/m | 7 (1 Low) | 10 (1 Low) | Low (Index 1) |
08/12/2025 17:00 |
| Heathrow Bath Road | n/m | 62 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Heathrow Green Gates | n/m | 19 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Heathrow LHR2 | n/m | 54 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Hillingdon Harmondsworth | n/m | 18 (1 Low) | n/m | n/m | 11 (1 Low) | Low (Index 1) |
08/12/2025 14:00 |
| Hillingdon Harmondsworth Osiris | n/m | n/m | n/m | 12 (2 Low) | 16 (1 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Hillingdon Hayes | n/m | 66 (1 Low) | n/m | n/m | 22 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Hillingdon Oxford Avenue | n/m | 8 (1 Low) | n/m | n/m | 21 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Hillingdon Sipson | n/m | 49 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
08/12/2025 16:00 |
| Hillingdon South Ruislip | n/m | 32 (1 Low) | n/m | n/m | 19 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Hounslow Brentford | n/m | 19 (1 Low) | n/m | 5 (1 Low) | 11 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Hounslow Chiswick | n/m | 19 (1 Low) | n/m | 5 (1 Low) | 7 (1 Low) | Low (Index 1) |
08/12/2025 17:00 |
| Hounslow Feltham | n/m | 30 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
08/12/2025 09:00 |
| Hounslow Gunnersbury | n/m | 42 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
08/12/2025 16:00 |
| Hounslow Hatton Cross | n/m | 15 (1 Low) | n/m | 13 (2 Low) | 21 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Hounslow Heston | n/m | 16 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
08/12/2025 10:00 |
| Kingston Upon Thames Cromwell Road | n/m | 26 (1 Low) | n/m | n/m | 22 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Kingston Upon Thames Kingston Vale | n/m | 23 (1 Low) | n/m | n/m | 19 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Kingston Upon Thames Tolworth Broadway | n/m | 19 (1 Low) | n/m | 10 (1 Low) | n/m | Low (Index 1) |
08/12/2025 16:00 |
| Newham Cam Road | n/m | 21 (1 Low) | n/m | 7 (1 Low) | 14 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Newham East Ham Town Hall | n/m | 41 (1 Low) | n/m | 12 (2 Low) | n/m | Low (Index 2) |
08/12/2025 16:00 |
| Newham Wren Close | n/m | 17 (1 Low) | n/m | 8 (1 Low) | n/a | Low (Index 1) |
08/12/2025 16:00 |
| RBKC Chelsea Old Town Hall | n/m | 52 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
08/12/2025 16:00 |
| RBKC Cromwell Road | 49 (2 Low) | 25 (1 Low) | n/m | 4 (1 Low) | n/a | Low (Index 2) |
08/12/2025 17:00 |
| RBKC Earl's Court Road | n/m | 33 (1 Low) | n/m | n/m | 14 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| RBKC Knightsbridge | n/m | 56 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
08/12/2025 16:00 |
| Redbridge Gardner Close | n/m | 27 (1 Low) | n/m | n/m | 18 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Redbridge Ley Street | 55 (2 Low) | 18 (1 Low) | n/m | 6 (1 Low) | 16 (1 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Riverwalk | 62 (2 Low) | 11 (1 Low) | n/m | 5 (1 Low) | 9 (1 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Sands End | 56 (2 Low) | 14 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Shepherds Bush Town Centre | n/m | 41 (1 Low) | n/m | 8 (1 Low) | 14 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Southwark A2 Old Kent Road (FIDAS) | n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Southwark Elephant and Castle | 64 (2 Low) | 15 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Southwark Lower Road | n/m | 24 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Southwark South Circular Road | n/m | 15 (1 Low) | n/m | 6 (1 Low) | 11 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Southwark Tower Bridge Road | n/m | 26 (1 Low) | n/m | 7 (1 Low) | 12 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Southwark Vicarage Grove | n/m | 33 (1 Low) | n/m | 9 (1 Low) | 15 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Sutton Beddington Lane north | n/m | 13 (1 Low) | n/m | 8 (1 Low) | 15 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Sutton Beddington Village | n/m | 15 (1 Low) | n/m | n/m | 22 (2 Low) | Low (Index 2) |
08/12/2025 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 | 15 (1 Low) | n/m | n/m | 22 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| The Aldgate School | n/m | 29 (1 Low) | n/m | 8 (1 Low) | 22 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Tower Hamlets - Blackwall | 36 (2 Low) | 40 (1 Low) | n/m | 8 (1 Low) | 13 (1 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Waltham Forest Crooked Billet | n/m | 25 (1 Low) | n/m | n/m | 24 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Waltham Forest Dawlish Rd | n/m | 14 (1 Low) | n/m | 9 (1 Low) | 18 (2 Low) | Low (Index 2) |
08/12/2025 15:00 |
| Waltham Forest Leyton | n/m | 19 (1 Low) | n/m | n/m | 13 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| Wormwood Scrubs | 61 (2 Low) | 15 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Camden Kerbside (Swiss Cottage) | n/m | 28 (1 Low) | n/m | 9 (1 Low) | 18 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Ealing Horn Lane | n/m | n/m | n/m | n/m | 19 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| Haringey Roadside | n/m | 28 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
08/12/2025 16:00 |
| London Bexley | n/m | 12 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| London Bloomsbury | 52 (2 Low) | 24 (1 Low) | 1 (1 Low) | 7 (1 Low) | 12 (1 Low) | Low (Index 2) |
08/12/2025 16:00 |
| London Farringdon Street | n/m | 54 (1 Low) | n/m | 8 (1 Low) | n/m | Low (Index 1) |
08/12/2025 16:00 |
| London Haringey Priory Park South | 62 (2 Low) | 11 (1 Low) | n/m | 6 (1 Low) | 10 (1 Low) | Low (Index 2) |
08/12/2025 16:00 |
| London Harlington | 34 (2 Low) | 49 (1 Low) | n/m | 5 (1 Low) | 8 (1 Low) | Low (Index 2) |
08/12/2025 16:00 |
| London Hillingdon | 30 (1 Low) | 45 (1 Low) | n/m | 6 (1 Low) | 12 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| London Honor Oak Park | 67 (3 Low) | n/m | n/m | 6 (1 Low) | 10 (1 Low) | Low (Index 3) |
08/12/2025 16:00 |
| London Marylebone Road | 35 (2 Low) | n/a | n/a | 9 (1 Low) | 22 (2 Low) | Low (Index 2) |
08/12/2025 16:00 |
| London N. Kensington (RBKC North Kensington) | 65 (2 Low) | 14 (1 Low) | 1 (1 Low) | 6 (1 Low) | 10 (1 Low) | Low (Index 2) |
08/12/2025 16:00 |
| London Norbury Manor School | n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| London Teddington Bushy Park | n/m | n/m | n/m | 6 (1 Low) | 10 (1 Low) | Low (Index 1) |
08/12/2025 16:00 |
| London Westminster | 56 (2 Low) | 20 (1 Low) | n/m | n/a | n/m | Low (Index 2) |
08/12/2025 16:00 |
| Southwark A2 Old Kent Road | n/m | 14 (1 Low) | n/m | n/m | 19 (2 Low) | Low (Index 2) |
08/12/2025 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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