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 | 23 (1 Low) | n/m | n/m | 23 (2 Low) | Low (Index 2) |
25/03/2025 22:00 |
| Barnet Tally Ho | n/m | 29 (1 Low) | n/m | 27 (3 Low) | 40 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Beech Street NOx | n/m | 40 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
25/03/2025 22:00 |
| Beech Street PM | n/m | n/m | n/m | n/m | 35 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Bell Wharf Lane | n/m | 34 (1 Low) | n/m | n/m | 43 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Brent Ikea | 33 (1 Low) | n/m | n/m | 31 (3 Low) | n/m | Low (Index 3) |
25/03/2025 22:00 |
| Camden - Coopers Lane | n/m | n/m | n/m | 24 (3 Low) | 33 (2 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Camden - Euston Road | n/m | 38 (1 Low) | n/m | 28 (3 Low) | 40 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Camden High Street | n/m | 27 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
25/03/2025 22:00 |
| Ealing Acton Background (sensor) | n/m | n/a | n/m | n/a | n/a | No Data | 04/02/2025 12:00 |
| Ealing Ada Lovelace CofE School (sensor) | n/m | n/a | n/m | n/a | n/a | No Data | 19/01/2025 22:00 |
| Ealing Alec Reed Academy (sensor) | n/m | 16 (1 Low) | n/m | 19 (2 Low) | 28 (2 Low) | Low (Index 2) |
25/03/2025 22:00 |
| Ealing Fields High School (sensor) | n/m | n/a | n/m | n/a | n/a | No Data | 26/12/2024 19:00 |
| Ealing Greenford Background (sensor) | n/m | n/a | n/m | n/a | n/a | No Data | 14/01/2025 24:00 |
| Ealing Havelock Primary School (sensor) | n/m | n/a | n/m | n/a | n/a | No Data | 04/02/2025 11:00 |
| Ealing John Perryn Primary School (sensor) | n/m | n/a | n/m | n/a | n/a | No Data | 12/07/2024 11:00 |
| Ealing Khalsa Primary School (sensor) | n/m | n/a | n/m | n/a | n/a | No Data | 04/09/2024 02:00 |
| Ealing Lady Margaret Primary School (sensor) | n/m | n/a | n/m | n/a | n/a | No Data | 21/01/2025 24:00 |
| Ealing William Perkin CofE School (sensor) | n/m | n/a | n/m | n/a | n/a | No Data | 18/08/2024 10:00 |
| Farringdon Street | n/m | n/a | n/m | 28 (3 Low) | n/m | Low (Index 3) |
25/03/2025 22:00 |
| Fulham Town Centre | 48 (2 Low) | 33 (1 Low) | n/m | 31 (3 Low) | 47 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Greenwich Westhorne Avenue | 28 (1 Low) | n/m | n/m | n/m | n/m | Low (Index 1) |
25/03/2025 22:00 |
| Greenwich Woolwich Flyover | 24 (1 Low) | n/m | n/m | 32 (3 Low) | n/m | Low (Index 3) |
25/03/2025 20:00 |
| Guildhall | 36 (2 Low) | n/m | n/m | n/m | n/m | Low (Index 2) |
25/03/2025 22:00 |
| Hackney Amhurst Road | n/m | 35 (1 Low) | n/m | n/m | 44 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Hackney Dalston Lane | n/m | 30 (1 Low) | n/m | n/m | 41 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Hackney Graham Road | n/m | 27 (1 Low) | n/m | 28 (3 Low) | 40 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Hackney Green Lanes | n/m | 35 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
25/03/2025 22:00 |
| Hackney Homerton Library | n/m | 32 (1 Low) | n/m | n/m | 50 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Hackney Northwold Road | n/m | 42 (1 Low) | n/m | 32 (3 Low) | 46 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Hackney Old Street | 41 (2 Low) | 28 (1 Low) | n/m | 28 (3 Low) | 38 (3 Low) | Low (Index 3) |
25/03/2025 23:00 |
| Hammersmith Town Centre | 25 (1 Low) | 73 (2 Low) | n/m | 29 (3 Low) | 37 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Haringey Wood Green | n/m | 79 (2 Low) | n/m | 28 (3 Low) | 34 (3 Low) | Low (Index 3) |
25/03/2025 21:00 |
| Heathrow Bath Road | n/m | 22 (1 Low) | n/m | 27 (3 Low) | 37 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Heathrow Green Gates | n/m | 20 (1 Low) | n/m | 26 (3 Low) | 32 (2 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Heathrow LHR2 | n/m | 21 (1 Low) | n/m | 26 (3 Low) | 35 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Hillingdon Harmondsworth | n/m | 17 (1 Low) | n/m | n/m | 22 (2 Low) | Low (Index 2) |
25/03/2025 22:00 |
| Hillingdon Harmondsworth Osiris | n/m | n/m | n/m | 14 (2 Low) | 24 (2 Low) | Low (Index 2) |
25/03/2025 06:00 |
| Hillingdon Hayes | n/m | 28 (1 Low) | n/m | n/m | 46 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Hillingdon Oxford Avenue | n/m | 20 (1 Low) | n/m | n/m | 32 (2 Low) | Low (Index 2) |
25/03/2025 22:00 |
| Hillingdon Sipson | n/m | 26 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
25/03/2025 22:00 |
| Hillingdon South Ruislip | n/m | 14 (1 Low) | n/m | n/m | 29 (2 Low) | Low (Index 2) |
25/03/2025 22:00 |
| Hounslow Brentford | n/m | 33 (1 Low) | n/m | 24 (3 Low) | 40 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Hounslow Chiswick | n/m | 16 (1 Low) | n/m | 26 (3 Low) | 35 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Hounslow Feltham | n/m | 31 (1 Low) | n/m | 26 (3 Low) | 36 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Hounslow Gunnersbury | n/m | 51 (1 Low) | n/m | 27 (3 Low) | 44 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Hounslow Hatton Cross | n/m | 42 (1 Low) | n/m | 24 (3 Low) | 33 (2 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Hounslow Heston | n/m | 29 (1 Low) | n/m | 23 (2 Low) | 35 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Kingston Upon Thames Cromwell Road | n/m | 56 (1 Low) | n/m | n/m | 54 (4 Moderate) | Moderate (Index 4) |
25/03/2025 22:00 |
| Kingston Upon Thames Kingston Vale | n/m | 22 (1 Low) | n/m | n/m | 31 (2 Low) | Low (Index 2) |
25/03/2025 22:00 |
| Kingston Upon Thames Tolworth Broadway | n/m | 25 (1 Low) | n/m | 41 (4 Moderate) | n/m | Moderate (Index 4) |
25/03/2025 13:00 |
| Newham Cam Road | n/m | 44 (1 Low) | n/m | 27 (3 Low) | n/a | Low (Index 3) |
25/03/2025 22:00 |
| Newham East Ham Town Hall | n/m | 37 (1 Low) | n/m | 32 (3 Low) | n/m | Low (Index 3) |
25/03/2025 22:00 |
| Newham Wren Close | n/m | 35 (1 Low) | n/m | 29 (3 Low) | 36 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| RBKC Chelsea Old Town Hall | n/m | 31 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
25/03/2025 22:00 |
| RBKC Cromwell Road | 41 (2 Low) | 35 (1 Low) | n/m | 21 (2 Low) | 33 (2 Low) | Low (Index 2) |
25/03/2025 22:00 |
| RBKC Earl's Court Road | n/m | 42 (1 Low) | n/m | n/m | 46 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| RBKC Knightsbridge | n/m | 28 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
25/03/2025 22:00 |
| Redbridge Gardner Close | n/m | 27 (1 Low) | n/m | n/m | 34 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Redbridge Ley Street | 39 (2 Low) | 19 (1 Low) | n/m | 28 (3 Low) | n/a | Low (Index 3) |
25/03/2025 22:00 |
| Riverwalk | 41 (2 Low) | 32 (1 Low) | n/m | 29 (3 Low) | 37 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Sands End | 43 (2 Low) | 27 (1 Low) | n/m | 26 (3 Low) | 35 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Shepherds Bush Town Centre | n/m | 43 (1 Low) | n/m | 25 (3 Low) | 40 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Sutton Beddington Lane north | n/m | 21 (1 Low) | n/m | n/m | 39 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Sutton Beddington Village | n/m | 25 (1 Low) | n/m | n/m | 35 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Sutton Wallington | n/m | n/a | n/m | n/m | n/a | No Data | 21/06/2024 17:00 |
| Sutton Worcester Park | n/m | 39 (1 Low) | n/m | n/m | 36 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| The Aldgate School | n/m | 30 (1 Low) | n/m | 27 (3 Low) | 36 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Tower Hamlets - Blackwall | 31 (1 Low) | 38 (1 Low) | n/m | 37 (4 Moderate) | 66 (5 Moderate) | Moderate (Index 5) |
25/03/2025 18:00 |
| Tower Hamlets - King Edward Memorial Park | n/m | 19 (1 Low) | n/m | 32 (3 Low) | n/m | Low (Index 3) |
25/03/2025 18:00 |
| Tower Hamlets - Millwall Park | 38 (2 Low) | 23 (1 Low) | n/m | n/m | 35 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Tower Hamlets - Roadside | n/m | 30 (1 Low) | n/m | 33 (3 Low) | n/m | Low (Index 3) |
25/03/2025 22:00 |
| Tower Hamlets - Victoria Park | n/m | 16 (1 Low) | n/m | n/a | 39 (3 Low) | Low (Index 3) |
25/03/2025 18:00 |
| Waltham Forest Crooked Billet | n/m | 41 (1 Low) | n/m | n/m | 55 (4 Moderate) | Moderate (Index 4) |
25/03/2025 18:00 |
| Waltham Forest Dawlish Rd | n/m | 15 (1 Low) | n/m | 31 (3 Low) | 35 (3 Low) | Low (Index 3) |
25/03/2025 18:00 |
| Waltham Forest Leyton | n/m | 21 (1 Low) | n/m | n/m | 46 (3 Low) | Low (Index 3) |
25/03/2025 18:00 |
| Wormwood Scrubs | 37 (2 Low) | 39 (1 Low) | n/m | 31 (3 Low) | 41 (3 Low) | Low (Index 3) |
25/03/2025 22:00 |
| Camden Kerbside (Swiss Cottage) | n/m | 9 (1 Low) | n/m | 20 (2 Low) | 38 (3 Low) | Low (Index 3) |
26/03/2025 04:00 |
| Ealing Horn Lane | n/m | n/m | n/m | n/m | 48 (3 Low) | Low (Index 3) |
26/03/2025 04:00 |
| Haringey Roadside | n/m | 12 (1 Low) | n/m | n/m | n/m | Low (Index 1) |
26/03/2025 04:00 |
| London Bexley | n/m | 25 (1 Low) | n/m | 26 (3 Low) | 33 (2 Low) | Low (Index 3) |
26/03/2025 04:00 |
| London Bloomsbury | 25 (1 Low) | 16 (1 Low) | 2 (1 Low) | 19 (2 Low) | 25 (2 Low) | Low (Index 2) |
26/03/2025 04:00 |
| London Haringey Priory Park South | 29 (1 Low) | 8 (1 Low) | n/m | 17 (2 Low) | 22 (2 Low) | Low (Index 2) |
26/03/2025 04:00 |
| London Harlington | n/a | n/a | n/m | n/a | n/a | No Data | 25/03/2025 22:00 |
| London Hillingdon | 39 (2 Low) | 11 (1 Low) | n/m | 15 (2 Low) | 20 (2 Low) | Low (Index 2) |
26/03/2025 04:00 |
| London Honor Oak Park | 27 (1 Low) | n/m | n/m | 19 (2 Low) | 25 (2 Low) | Low (Index 2) |
26/03/2025 04:00 |
| London Marylebone Road | 24 (1 Low) | 8 (1 Low) | 1 (1 Low) | 21 (2 Low) | 31 (2 Low) | Low (Index 2) |
26/03/2025 04:00 |
| London N. Kensington (RBKC North Kensington) | 36 (2 Low) | 9 (1 Low) | 1 (1 Low) | 17 (2 Low) | 22 (2 Low) | Low (Index 2) |
26/03/2025 04:00 |
| London Teddington Bushy Park | n/m | n/m | n/m | 16 (2 Low) | 22 (2 Low) | Low (Index 2) |
26/03/2025 04:00 |
| London Westminster | 26 (1 Low) | 14 (1 Low) | n/m | 20 (2 Low) | n/m | Low (Index 2) |
26/03/2025 04:00 |
| Southwark A2 Old Kent Road | n/m | 22 (1 Low) | n/m | n/m | 36 (3 Low) | Low (Index 3) |
26/03/2025 04:00 |
» 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 5)
MODERATE ( Index 5)
| Very High | 10 |
| High | 9 |
| 8 | |
| 7 | |
| Moderate | 6 |
| 5 | |
| 4 | |
| Low | 3 |
| 2 | |
| 1 |
Guide to map markers:
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