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 | 8 (1 Low) | n/m | n/m | 21 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Barnet Tally Ho | n/m | 28 (1 Low) | n/m | 22 (2 Low) | 28 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Beech Street NOx | n/m | 27 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
01/01/2026 08:00 |
| Beech Street PM | n/m | n/m | n/m | n/m | 20 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Bell Wharf Lane | n/m | 17 (1 Low) | n/m | n/m | 36 (3 Low) | Low (Index 3) |
01/01/2026 08:00 |
| Brent Ikea | 35 (2 Low) | n/m | n/m | 22 (2 Low) | n/m | Low (Index 2) |
01/01/2026 08:00 |
| Camden - Coopers Lane | n/m | n/m | n/m | 15 (2 Low) | 20 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Camden - Euston Road | n/m | 26 (1 Low) | n/m | 19 (2 Low) | 26 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Camden High Street | n/m | 13 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
01/01/2026 08:00 |
| Ealing Acton Background (sensor) | n/m | 40 (1 Low) | n/m | 22 (2 Low) | 29 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Ealing Elthorne Park High School (sensor) | n/m | 49 (1 Low) | n/m | 38 (4 Moderate) | 64 (5 Moderate) | Moderate (Index 5) |
01/01/2026 08:00 |
| Ealing Greenford Background (sensor) | n/m | 37 (1 Low) | n/m | 19 (2 Low) | 23 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Ealing Havelock Primary School (sensor) | n/m | 45 (1 Low) | n/m | 16 (2 Low) | 21 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Ealing John Perryn Primary School (sensor) | n/m | 42 (1 Low) | n/m | 13 (2 Low) | 16 (1 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Ealing Khalsa Primary School (sensor) | n/m | 42 (1 Low) | n/m | 13 (2 Low) | 17 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Ealing Lady Margaret Primary School (sensor) | n/m | 38 (1 Low) | n/m | 18 (2 Low) | 23 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| 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 | 44 (1 Low) | n/m | 19 (2 Low) | 27 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Ealing William Perkin CofE School (sensor) | n/m | 39 (1 Low) | n/m | 13 (2 Low) | 16 (1 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Fulham Town Centre | 51 (2 Low) | 11 (1 Low) | n/m | 18 (2 Low) | 21 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Greenwich Westhorne Avenue | 48 (2 Low) | n/m | n/m | n/m | n/m | Low (Index 2) |
01/01/2026 08:00 |
| Greenwich Woolwich Flyover | 39 (2 Low) | n/m | n/m | 20 (2 Low) | n/m | Low (Index 2) |
01/01/2026 08:00 |
| Guildhall | 42 (2 Low) | n/m | n/m | n/m | n/m | Low (Index 2) |
01/01/2026 08:00 |
| Hackney Amhurst Road | n/m | 21 (1 Low) | n/m | n/m | 24 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Hackney Dalston Lane | n/m | 38 (1 Low) | n/m | n/m | 30 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Hackney Graham Road | n/m | 22 (1 Low) | n/m | 16 (2 Low) | 21 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Hackney Green Lanes | n/m | 14 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
01/01/2026 08:00 |
| Hackney Homerton Library | n/m | 18 (1 Low) | n/m | n/m | 26 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Hackney Northwold Road | n/m | 17 (1 Low) | n/m | 18 (2 Low) | 22 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Hackney Old Street | 40 (2 Low) | 26 (1 Low) | n/m | 21 (2 Low) | 28 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Hammersmith Town Centre | 44 (2 Low) | 7 (1 Low) | n/m | 19 (2 Low) | 20 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Haringey Wood Green | n/m | 17 (1 Low) | n/m | 16 (2 Low) | 19 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Heathrow Bath Road | n/m | 33 (1 Low) | n/m | 13 (2 Low) | 15 (1 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Heathrow Green Gates | n/m | 4 (1 Low) | n/m | 11 (1 Low) | 13 (1 Low) | Low (Index 1) |
01/01/2026 08:00 |
| Heathrow LHR2 | n/m | 35 (1 Low) | n/m | 12 (2 Low) | 14 (1 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Hillingdon Harmondsworth | n/m | 10 (1 Low) | n/m | n/m | 13 (1 Low) | Low (Index 1) |
01/01/2026 07:00 |
| Hillingdon Harmondsworth Osiris | n/m | n/m | n/m | 4 (1 Low) | 5 (1 Low) | Low (Index 1) |
01/01/2026 08:00 |
| Hillingdon Hayes | n/m | 9 (1 Low) | n/m | n/m | 22 (2 Low) | Low (Index 2) |
01/01/2026 05:00 |
| Hillingdon Oxford Avenue | n/m | 30 (1 Low) | n/m | n/m | 20 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Hillingdon Sipson | n/m | 10 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
01/01/2026 08:00 |
| Hillingdon South Ruislip | n/m | 4 (1 Low) | n/m | n/m | 18 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Hounslow Brentford | n/m | 13 (1 Low) | n/m | 14 (2 Low) | 20 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Hounslow Chiswick | n/m | 13 (1 Low) | n/m | 22 (2 Low) | 25 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Hounslow Feltham | n/m | 8 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
01/01/2026 08:00 |
| Hounslow Gunnersbury | n/m | 19 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
01/01/2026 08:00 |
| Hounslow Hatton Cross | n/m | 18 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
01/01/2026 08:00 |
| Hounslow Heston | n/m | 16 (1 Low) | n/m | n/a | n/a | Low (Index 1) |
01/01/2026 08:00 |
| Kingston Upon Thames Cromwell Road | n/m | 8 (1 Low) | n/m | n/m | 20 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Kingston Upon Thames Kingston Vale | n/m | 7 (1 Low) | n/m | n/m | 18 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Kingston Upon Thames Tolworth Broadway | n/m | 8 (1 Low) | n/m | 17 (2 Low) | n/m | Low (Index 2) |
01/01/2026 08:00 |
| Newham Cam Road | n/m | 14 (1 Low) | n/m | 19 (2 Low) | 20 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Newham East Ham Town Hall | n/m | 18 (1 Low) | n/m | 29 (3 Low) | n/m | Low (Index 3) |
01/01/2026 08:00 |
| Newham Wren Close | n/m | 10 (1 Low) | n/m | 19 (2 Low) | 22 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| RBKC Chelsea Old Town Hall | n/m | 12 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
01/01/2026 08:00 |
| RBKC Cromwell Road | 37 (2 Low) | 23 (1 Low) | n/m | n/a | n/a | Low (Index 2) |
01/01/2026 08:00 |
| RBKC Earl's Court Road | n/m | 11 (1 Low) | n/m | n/m | 28 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| RBKC Knightsbridge | n/m | 11 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
01/01/2026 08:00 |
| Redbridge Gardner Close | n/m | 16 (1 Low) | n/m | n/m | 24 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Redbridge Ley Street | 44 (2 Low) | 17 (1 Low) | n/m | 18 (2 Low) | 18 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Riverwalk | 44 (2 Low) | 9 (1 Low) | n/m | 16 (2 Low) | 19 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Sands End | 51 (2 Low) | 6 (1 Low) | n/m | 16 (2 Low) | 18 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Shepherds Bush Town Centre | n/m | 28 (1 Low) | n/m | n/a | 26 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Southwark A2 Old Kent Road (FIDAS) | n/m | n/m | n/m | 17 (2 Low) | 20 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Southwark Elephant and Castle | 51 (2 Low) | 7 (1 Low) | n/m | 16 (2 Low) | 19 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Southwark Lower Road | n/m | n/a | n/m | 17 (2 Low) | 21 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Southwark South Circular Road | n/m | 14 (1 Low) | n/m | 18 (2 Low) | 21 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Southwark Tower Bridge Road | n/m | 11 (1 Low) | n/m | 17 (2 Low) | 22 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Southwark Vicarage Grove | n/m | 22 (1 Low) | n/m | 25 (3 Low) | 30 (2 Low) | Low (Index 3) |
01/01/2026 08:00 |
| Sutton Beddington Lane north | n/m | 7 (1 Low) | n/m | 22 (2 Low) | n/a | Low (Index 2) |
01/01/2026 08:00 |
| Sutton Beddington Village | n/m | 7 (1 Low) | n/m | n/m | 19 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Sutton Wallington | n/m | n/a | n/m | n/m | n/a | No Data | 21/06/2024 17:00 |
| Sutton Worcester Park | n/m | 5 (1 Low) | n/m | n/m | 20 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| The Aldgate School | n/m | 20 (1 Low) | n/m | 26 (3 Low) | 21 (2 Low) | Low (Index 3) |
01/01/2026 08:00 |
| Tower Hamlets - Blackwall | 60 (2 Low) | 17 (1 Low) | n/m | 19 (2 Low) | 26 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Waltham Forest Crooked Billet | n/m | 11 (1 Low) | n/m | n/m | 27 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Waltham Forest Dawlish Rd | n/m | 14 (1 Low) | n/m | 20 (2 Low) | 19 (2 Low) | Low (Index 2) |
01/01/2026 07:00 |
| Waltham Forest Leyton | n/m | 12 (1 Low) | n/m | n/m | 21 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Wormwood Scrubs | 41 (2 Low) | 13 (1 Low) | n/m | 17 (2 Low) | 20 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Camden Kerbside (Swiss Cottage) | n/m | 14 (1 Low) | n/m | 23 (2 Low) | 29 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Ealing Horn Lane | n/m | n/m | n/m | n/m | 26 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| Haringey Roadside | n/m | 20 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
01/01/2026 08:00 |
| London Bexley | n/m | 8 (1 Low) | n/m | 17 (2 Low) | 20 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| London Bloomsbury | 36 (2 Low) | 16 (1 Low) | 1 (1 Low) | 16 (2 Low) | 19 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| London Farringdon Street | n/m | 21 (1 Low) | n/m | 20 (2 Low) | n/m | Low (Index 2) |
01/01/2026 08:00 |
| London Haringey Priory Park South | 46 (2 Low) | 10 (1 Low) | n/m | 14 (2 Low) | 17 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| London Harlington | 54 (2 Low) | 6 (1 Low) | n/m | 12 (2 Low) | 13 (1 Low) | Low (Index 2) |
01/01/2026 08:00 |
| London Hillingdon | 39 (2 Low) | 18 (1 Low) | n/m | 15 (2 Low) | 17 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| London Honor Oak Park | 56 (2 Low) | n/m | n/m | 16 (2 Low) | 18 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| London Marylebone Road | 25 (1 Low) | 17 (1 Low) | 1 (1 Low) | 25 (3 Low) | 29 (2 Low) | Low (Index 3) |
01/01/2026 08:00 |
| London N. Kensington (RBKC North Kensington) | 45 (2 Low) | 13 (1 Low) | 2 (1 Low) | 16 (2 Low) | 19 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| London Norbury Manor School | n/m | n/m | n/m | 17 (2 Low) | 20 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| London Teddington Bushy Park | n/m | n/m | n/m | 15 (2 Low) | 18 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
| London Westminster | 42 (2 Low) | 11 (1 Low) | n/m | n/a | n/m | Low (Index 2) |
01/01/2026 08:00 |
| Southwark A2 Old Kent Road | n/m | 14 (1 Low) | n/m | n/m | 23 (2 Low) | Low (Index 2) |
01/01/2026 08:00 |
» 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.
MODERATE ( Index 5)
| Very High | 10 |
| High | 9 |
| 8 | |
| 7 | |
| Moderate | 6 |
| 5 | |
| 4 | |
| Low | 3 |
| 2 | |
| 1 |
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