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 | 36 (1 Low) | n/m | n/m | 5 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Barnet Tally Ho | n/m | 51 (1 Low) | n/m | 5 (1 Low) | 7 (1 Low) | Low (Index 1) |
16/01/2026 11:00 |
| Beech Street NOx | n/m | 40 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
16/01/2026 11:00 |
| Beech Street PM | n/m | n/m | n/m | n/m | 6 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Bell Wharf Lane | n/m | 37 (1 Low) | n/m | n/m | 8 (1 Low) | Low (Index 1) |
16/01/2026 11:00 |
| Brent Ikea | 12 (1 Low) | n/m | n/m | 9 (1 Low) | n/m | Low (Index 1) |
16/01/2026 10:00 |
| Bromley Harwood Avenue | n/m | 30 (1 Low) | n/m | 5 (1 Low) | 7 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Camden - Coopers Lane | n/m | n/m | n/m | 1 (1 Low) | 3 (1 Low) | Low (Index 1) |
16/01/2026 11:00 |
| Camden - Euston Road | n/m | 69 (2 Low) | n/m | 6 (1 Low) | 9 (1 Low) | Low (Index 2) |
16/01/2026 10:00 |
| Camden High Street | n/m | 24 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
16/01/2026 11:00 |
| Ealing Acton Background (sensor) | n/m | 46 (1 Low) | n/m | 7 (1 Low) | 9 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Ealing Elthorne Park High School (sensor) | n/m | 51 (1 Low) | n/m | 19 (2 Low) | 32 (2 Low) | Low (Index 2) |
16/01/2026 10:00 |
| Ealing Greenford Background (sensor) | n/m | 48 (1 Low) | n/m | 6 (1 Low) | 9 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Ealing Havelock Primary School (sensor) | n/m | 41 (1 Low) | n/m | 6 (1 Low) | 9 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Ealing John Perryn Primary School (sensor) | n/m | 53 (1 Low) | n/m | 4 (1 Low) | 5 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Ealing Khalsa Primary School (sensor) | n/m | 46 (1 Low) | n/m | 5 (1 Low) | 7 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Ealing Lady Margaret Primary School (sensor) | n/m | n/a | n/m | n/a | n/a | No Data | 14/01/2026 17:00 |
| 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 | 63 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Ealing William Perkin CofE School (sensor) | n/m | 55 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Fulham Town Centre | 38 (2 Low) | 43 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) | Low (Index 2) |
16/01/2026 10:00 |
| Greenwich Westhorne Avenue | 39 (2 Low) | n/m | n/m | n/m | n/m | Low (Index 2) |
16/01/2026 07:00 |
| Greenwich Woolwich Flyover | 20 (1 Low) | n/m | n/m | 9 (1 Low) | n/m | Low (Index 1) |
16/01/2026 10:00 |
| Guildhall | 45 (2 Low) | n/m | n/m | n/m | n/m | Low (Index 2) |
16/01/2026 11:00 |
| Hackney Amhurst Road | n/m | 27 (1 Low) | n/m | n/m | 6 (1 Low) | Low (Index 1) |
16/01/2026 11:00 |
| Hackney Dalston Lane | n/m | 50 (1 Low) | n/m | n/m | 7 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Hackney Graham Road | n/m | 59 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) | Low (Index 1) |
16/01/2026 11:00 |
| Hackney Green Lanes | n/m | 19 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
16/01/2026 11:00 |
| Hackney Homerton Library | n/m | 17 (1 Low) | n/m | n/m | 8 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Hackney Northwold Road | n/m | 40 (1 Low) | n/m | 5 (1 Low) | 6 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Hackney Old Street | 32 (1 Low) | 51 (1 Low) | n/m | 8 (1 Low) | 11 (1 Low) | Low (Index 1) |
16/01/2026 11:00 |
| Hammersmith Town Centre | 30 (1 Low) | 63 (1 Low) | n/m | 4 (1 Low) | 7 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Haringey Wood Green | n/m | 39 (1 Low) | n/m | 6 (1 Low) | 7 (1 Low) | Low (Index 1) |
16/01/2026 11:00 |
| Heathrow Bath Road | n/m | 63 (1 Low) | n/m | 4 (1 Low) | 5 (1 Low) | Low (Index 1) |
16/01/2026 11:00 |
| Heathrow Green Gates | n/m | 42 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Heathrow LHR2 | n/m | 63 (1 Low) | n/m | 3 (1 Low) | 4 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Hillingdon Harmondsworth | n/m | 48 (1 Low) | n/m | n/m | 5 (1 Low) | Low (Index 1) |
16/01/2026 07:00 |
| Hillingdon Harmondsworth Osiris | n/m | n/m | n/m | 2 (1 Low) | 4 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Hillingdon Hayes | n/m | 38 (1 Low) | n/m | n/m | 8 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Hillingdon Oxford Avenue | n/m | 33 (1 Low) | n/m | n/m | 15 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Hillingdon Sipson | n/m | 76 (2 Low) | n/m | n/m | n/m | Low (Index 2) |
16/01/2026 10:00 |
| Hillingdon South Ruislip | n/m | 36 (1 Low) | n/m | n/m | 8 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Hounslow Brentford | n/m | 22 (1 Low) | n/m | 0 (1 Low) | 1 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Hounslow Chiswick | n/m | 38 (1 Low) | n/m | 6 (1 Low) | 7 (1 Low) | Low (Index 1) |
16/01/2026 11:00 |
| Hounslow Feltham | n/m | 38 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
16/01/2026 10:00 |
| Hounslow Gunnersbury | n/m | 36 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
16/01/2026 11:00 |
| Hounslow Hatton Cross | n/m | 29 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
16/01/2026 10:00 |
| Hounslow Heston | n/m | 21 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
16/01/2026 11:00 |
| Kingston Upon Thames Cromwell Road | n/m | 41 (1 Low) | n/m | n/m | 7 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Kingston Upon Thames Kingston Vale | n/m | 42 (1 Low) | n/m | n/m | 10 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Kingston Upon Thames Tolworth Broadway | n/m | 45 (1 Low) | n/m | 4 (1 Low) | n/m | Low (Index 1) |
16/01/2026 10:00 |
| London City Airport KGV House | n/m | 20 (1 Low) | n/m | 2 (1 Low) | 3 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| London City Airport Newham Dockside | n/m | 22 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
16/01/2026 10:00 |
| Newham Cam Road | n/m | 58 (1 Low) | n/m | 5 (1 Low) | 6 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Newham East Ham Town Hall | n/m | 54 (1 Low) | n/m | 11 (1 Low) | n/m | Low (Index 1) |
16/01/2026 10:00 |
| Newham Wren Close | n/m | n/a | n/m | 7 (1 Low) | 8 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| RBKC Chelsea Old Town Hall | n/m | 50 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
16/01/2026 10:00 |
| RBKC Cromwell Road | n/a | n/a | n/m | n/a | n/a | No Data | 08/01/2026 13:00 |
| RBKC Earl's Court Road | n/m | 117 (2 Low) | n/m | n/m | 5 (1 Low) | Low (Index 2) |
16/01/2026 10:00 |
| RBKC Knightsbridge | n/m | 34 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
16/01/2026 10:00 |
| Redbridge Gardner Close | n/m | 44 (1 Low) | n/m | n/m | 9 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Redbridge Ley Street | 25 (1 Low) | 37 (1 Low) | n/m | 6 (1 Low) | 7 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Riverwalk | 44 (2 Low) | 26 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) | Low (Index 2) |
16/01/2026 10:00 |
| Sands End | 36 (2 Low) | 24 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) | Low (Index 2) |
16/01/2026 10:00 |
| Shepherds Bush Town Centre | n/m | 42 (1 Low) | n/m | 5 (1 Low) | 7 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Southwark A2 Old Kent Road (FIDAS) | n/m | n/m | n/m | 3 (1 Low) | 4 (1 Low) | Low (Index 1) |
16/01/2026 09:00 |
| Southwark Elephant and Castle | 50 (2 Low) | 21 (1 Low) | n/m | 3 (1 Low) | 5 (1 Low) | Low (Index 2) |
16/01/2026 10:00 |
| Southwark Lower Road | n/m | 48 (1 Low) | n/m | 4 (1 Low) | 5 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Southwark South Circular Road | n/m | 33 (1 Low) | n/m | 3 (1 Low) | 4 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Southwark Tower Bridge Road | n/m | 65 (1 Low) | n/m | 4 (1 Low) | 6 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Southwark Vicarage Grove | n/m | 48 (1 Low) | n/m | 5 (1 Low) | 6 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Sutton Beddington Lane north | n/m | 60 (1 Low) | n/m | 8 (1 Low) | 9 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Sutton Beddington Village | n/m | 36 (1 Low) | n/m | n/m | 10 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Sutton Wallington | n/m | n/a | n/m | n/m | n/a | No Data | 21/06/2024 17:00 |
| Sutton Worcester Park | n/m | 34 (1 Low) | n/m | n/m | 9 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| The Aldgate School | n/m | 40 (1 Low) | n/m | 7 (1 Low) | 7 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Tower Hamlets - Blackwall | 26 (1 Low) | 40 (1 Low) | n/m | 5 (1 Low) | 6 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Waltham Forest Crooked Billet | n/m | 75 (2 Low) | n/m | n/m | 11 (1 Low) | Low (Index 2) |
16/01/2026 10:00 |
| Waltham Forest Dawlish Rd | n/m | 40 (1 Low) | n/m | 8 (1 Low) | 8 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Waltham Forest Leyton | n/m | 27 (1 Low) | n/m | n/m | 6 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Wormwood Scrubs | 38 (2 Low) | 29 (1 Low) | n/m | 4 (1 Low) | 5 (1 Low) | Low (Index 2) |
16/01/2026 10:00 |
| Camden Kerbside (Swiss Cottage) | n/m | 44 (1 Low) | n/m | 7 (1 Low) | 11 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Ealing Horn Lane | n/m | n/m | n/m | n/m | 9 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| Haringey Roadside | n/m | 60 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
16/01/2026 10:00 |
| London Bexley | n/m | n/a | n/m | 4 (1 Low) | 5 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| London Bloomsbury | 38 (2 Low) | 33 (1 Low) | 2 (1 Low) | 4 (1 Low) | 6 (1 Low) | Low (Index 2) |
16/01/2026 10:00 |
| London Farringdon Street | n/m | 54 (1 Low) | n/m | 5 (1 Low) | n/m | Low (Index 1) |
16/01/2026 10:00 |
| London Haringey Priory Park South | 28 (1 Low) | 33 (1 Low) | n/m | 4 (1 Low) | 5 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| London Harlington | 25 (1 Low) | 55 (1 Low) | n/m | 3 (1 Low) | 4 (1 Low) | Low (Index 1) |
16/01/2026 11:00 |
| London Hillingdon | 15 (1 Low) | 69 (2 Low) | n/m | 5 (1 Low) | 10 (1 Low) | Low (Index 2) |
16/01/2026 10:00 |
| London Honor Oak Park | 46 (2 Low) | n/m | n/m | 3 (1 Low) | 4 (1 Low) | Low (Index 2) |
16/01/2026 10:00 |
| London Marylebone Road | 25 (1 Low) | 72 (2 Low) | 6 (1 Low) | 9 (1 Low) | 8 (1 Low) | Low (Index 2) |
16/01/2026 10:00 |
| London N. Kensington (RBKC North Kensington) | 45 (2 Low) | 26 (1 Low) | 2 (1 Low) | 3 (1 Low) | 5 (1 Low) | Low (Index 2) |
16/01/2026 10:00 |
| London Norbury Manor School | n/m | n/m | n/m | 3 (1 Low) | 4 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| London Teddington Bushy Park | n/m | n/m | n/m | 3 (1 Low) | 5 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
| London Westminster | 38 (2 Low) | 29 (1 Low) | n/m | n/a | n/m | Low (Index 2) |
16/01/2026 10:00 |
| Southwark A2 Old Kent Road | n/m | 29 (1 Low) | n/m | n/m | 7 (1 Low) | Low (Index 1) |
16/01/2026 10:00 |
» 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 2)
LOW ( Index 2)
| Very High | 10 |
| High | 9 |
| 8 | |
| 7 | |
| Moderate | 6 |
| 5 | |
| 4 | |
| Low | 3 |
| 2 | |
| 1 |
Guide to map markers:
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