Air quality in London, England, United Kingdom today
Update date
Last updated: 2026-02-10T22:00:00+00:00
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Mr. Duck’s Air Quality Score
Moderate air today for London, England, United Kingdom
⚠️ This website is currently under active development. Some data may be incomplete or temporarily inaccurate. For health-critical decisions, please verify information through official government or environmental sources.
Categories follow US EPA AQI breakpoints for PM (estimate from latest valid measurements; this project does not compute EPA NowCast/24-hour AQI yet).
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The overall air quality today is classified as Moderate. The main pollutant identified is PM2.5. PM2.5 is reported with a reference value of 35.0 µg/m³ and PM10 with a reference value of 16.0 µg/m³. Data is shown via OpenAQ based on 262 valid measurements. These measurements were collected across multiple monitoring sites in the city. The monitoring network includes stations that record particulate matter continuously. The data reflects the ambient concentration of fine particles at the time of sampling.
All values are expressed in micrograms per cubic metre. The reported concentrations are consistent with the classification of Moderate for today. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.
Latest sensor values
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
Moderate
PM25
35
µg/m³
Good
PM10
16
µg/m³
Info
PM1
20.3
µg/m³
Measured
O3
0.036
ppm
Measured
NO2
0.01
ppm
Measured
SO2
2
µg/m³
Measured
CO
93.1
µg/m³
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What the data includes
The OpenAQ feed for London aggregates measurements from 259 monitoring sites, representing a total of 834 recorded rows. The dataset is structured to include the full suite of pollutants typically tracked in urban air quality programmes – carbon monoxide (CO), carbon dioxide (CO2), nitrogen monoxide (NO), nitrogen dioxide (NO2), nitrogen oxides (NOX), ozone (O3), particulate matter 1 (PM1), particulate matter 10 (PM10), particulate matter 2.5 (PM2.5), relative humidity, sulphur dioxide (SO2), temperature and the auxiliary metric UM003. In practice, recent values are available for a subset of these: PM2.5, NO2 (both µg / m³ and ppm), PM10, NOX, NO, O3 and relative humidity. The most up‑to‑date observations were recorded on 2026‑02‑10 at 20:00 or 21:00 UTC for PM2.5, NO2 (µg / m³), PM10, O3 and relative humidity, while the NOX, NO and the ppm‑based NO2 readings date back to late 2020, indicating that those particular streams have not been refreshed for several years.
Across the pollutants with recent data, median concentrations are modest: PM2.5 sits at 6.35 µg / m³ (range –4.0 to 40.08 µg / m³), NO2 (µg / m³) at 30.4 µg / m³ (range –1.0 to 68.9 µg / m³), PM10 at 11.0 µg / m³ (range 0.0 to 132.1 µg / m³) and O3 at 39.8 µg / m³ (range –1.0 to 72.1 µg / m³). Relative humidity shows a median of 62.65 % with values spanning from about 34.7 % up to 99.3 %. The percentile‑10 and percentile‑90 figures illustrate that most recent readings cluster within the lower half of each pollutant’s observed spread, while occasional higher spikes are recorded in the older data.
Overall, 257 rows have been updated within the last 30 days, but 524 rows are classified as “old” and 53 lack a clear timestamp, meaning that a substantial portion of the historical record may not reflect current conditions. Consequently, while the dataset provides a broad geographic picture of London’s air quality, the uneven freshness across pollutants and the presence of older or unknown entries suggest that conditions can still vary noticeably by location and time.
Learn more about sources and filtering: About the data.
Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)
Latest sensor values (bars)
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
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Data notes
These data are based on 262 valid measurements and are Updated within 30 days, with the most recent reading recorded on 2026-02-10 at 22:00 UTC. The dataset reflects average conditions across monitoring sites in London, England, United Kingdom. Please note that air quality can vary by location and time within the city, so this snapshot may not represent every neighbourhood.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Haringey - Haringey Town Hall | no2 | 37.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Haringey - Haringey Town Hall | pm25 | 10.0 | µg/m³ | 2016-02-09 20:00 UTC |
| Harrow - Stanmore | no2 | 8.8 | µg/m³ | 2023-08-14 09:00 UTC |
| Harrow - Stanmore | pm10 | 38.4 | µg/m³ | 2023-06-12 14:00 UTC |
| Harrow - Stanmore | pm25 | 11.0 | µg/m³ | 2017-04-28 11:00 UTC |
| London Harlington - UKA00472 | no2 | 32.0 | µg/m³ | 2026-02-10 20:00 UTC |
| London Harlington - UKA00472 | o3 | 41.0 | µg/m³ | 2026-02-10 20:00 UTC |
| London Harlington - UKA00472 | pm10 | 7.0 | µg/m³ | 2026-02-10 20:00 UTC |
| London Harlington - UKA00472 | pm25 | 6.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Southwark - A2 Old Kent Road | no2 | 42.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Southwark - A2 Old Kent Road | pm10 | 13.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Southwark - A2 Old Kent Road | pm25 | 5.1 | µg/m³ | 2025-03-31 12:00 UTC |
| Greenwich - Eltham | pm10 | 9.0 | µg/m³ | 2023-07-04 16:00 UTC |
| Greenwich - Eltham | pm25 | 4.0 | µg/m³ | 2023-07-04 16:00 UTC |
| Camden - Bloomsbury | no2 | 43.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Camden - Bloomsbury | o3 | 49.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Camden - Bloomsbury | pm10 | 10.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Camden - Bloomsbury | pm25 | 7.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Camden - Bloomsbury | so2 | 2.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Ealing - Horn Lane | no2 | 7.6 | µg/m³ | 2025-12-24 06:00 UTC |
| Ealing - Horn Lane | pm10 | 14.0 | µg/m³ | 2026-02-10 20:00 UTC |
| London Haringey Priory Park South - UKA00568 | no2 | 31.0 | µg/m³ | 2026-02-10 20:00 UTC |
| London Haringey Priory Park South - UKA00568 | o3 | 53.0 | µg/m³ | 2026-02-10 20:00 UTC |
| London Haringey Priory Park South - UKA00568 | pm10 | 12.0 | µg/m³ | 2026-02-10 20:00 UTC |
| London Haringey Priory Park South - UKA00568 | pm25 | 9.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Tower Hamlets - Mile End Road | no2 | 25.9 | µg/m³ | 2026-02-10 19:00 UTC |
| Tower Hamlets - Mile End Road | pm25 | 8.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Camden - Swiss Cottage | no2 | 68.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Camden - Swiss Cottage | pm10 | 16.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Camden - Swiss Cottage | pm25 | 9.0 | µg/m³ | 2026-02-10 20:00 UTC |
| London Hillingdon - UKA00266 | no2 | 42.0 | µg/m³ | 2026-02-10 20:00 UTC |
| London Hillingdon - UKA00266 | o3 | 26.0 | µg/m³ | 2026-02-10 20:00 UTC |
| London Hillingdon - UKA00266 | pm10 | 10.0 | µg/m³ | 2026-02-10 20:00 UTC |
| London Hillingdon - UKA00266 | pm25 | 7.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Kensington and Chelsea - North Ken | co | 93.136 | µg/m³ | 2026-02-10 19:00 UTC |
| Kensington and Chelsea - North Ken | no2 | 36.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Kensington and Chelsea - North Ken | o3 | 63.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Kensington and Chelsea - North Ken | pm10 | 8.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Kensington and Chelsea - North Ken | pm25 | 6.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Kensington and Chelsea - North Ken | so2 | 2.0 | µg/m³ | 2026-02-10 20:00 UTC |
| London Teddington | no2 | 13.0 | µg/m³ | 2016-07-27 00:00 UTC |
| London Teddington | o3 | 63.0 | µg/m³ | 2016-07-27 00:00 UTC |
| Bexley - Slade Green | no2 | 33.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Bexley - Slade Green | o3 | 32.1 | µg/m³ | 2026-02-10 19:00 UTC |
| Bexley - Slade Green | pm10 | 10.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Bexley - Slade Green | pm25 | 7.0 | µg/m³ | 2026-02-10 20:00 UTC |
| Bexley - Slade Green | so2 | 4.5 | µg/m³ | 2026-02-10 19:00 UTC |
| London Teddington Bushy Park - UKA00572 | pm10 | 8.0 | µg/m³ | 2026-02-10 20:00 UTC |
| London Teddington Bushy Park - UKA00572 | pm25 | 5.0 | µg/m³ | 2026-02-10 20:00 UTC |
| London Westminster - UKA00435 | no2 | 35.0 | µg/m³ | 2026-02-10 20:00 UTC |
| London Westminster - UKA00435 | o3 | 52.0 | µg/m³ | 2026-02-10 20:00 UTC |
| London Westminster - UKA00435 | pm25 | 2.8 | µg/m³ | 2026-02-10 19:00 UTC |
| Google Street View Car | co2 | 432.285 | ppm | 2019-10-31 16:14 UTC |
| Google Street View Car | no2 | 0.001522 | ppm | 2019-08-25 15:18 UTC |
| Google Street View Car | nox | 25.1173076923077 | µg/m³ | 2019-08-20 20:04 UTC |
| Google Street View Car | pm25 | 29.7869 | µg/m³ | 2019-10-31 16:14 UTC |
| Google Street View Car | co2 | 429.471 | ppm | 2019-10-28 20:12 UTC |
| Google Street View Car | no | 0.026888 | ppm | 2019-10-05 16:19 UTC |
| Google Street View Car | no2 | 0.016766 | ppm | 2019-10-28 20:12 UTC |
| Google Street View Car | nox | 81.2461538461538 | µg/m³ | 2019-10-05 16:19 UTC |
| Google Street View Car | pm25 | 10.42832 | µg/m³ | 2019-10-28 20:12 UTC |
| Black Horse Court | no2 | 0.01519 | ppm | 2020-11-30 22:00 UTC |
| Black Horse Court | pm25 | 5.53 | µg/m³ | 2020-12-01 00:00 UTC |
| Holloway Bus Garage | no | 15.05 | µg/m³ | 2020-06-11 01:00 UTC |
| Holloway Bus Garage | no2 | 0.03121 | ppm | 2020-10-08 01:00 UTC |
| Holloway Bus Garage | nox | 49.71 | µg/m³ | 2020-06-11 01:00 UTC |
| Holloway Bus Garage | pm25 | 2.13 | µg/m³ | 2020-05-31 20:00 UTC |
| Parkside | no | 5.98 | µg/m³ | 2020-12-01 00:00 UTC |
| Parkside | no2 | 0.00726 | ppm | 2020-11-30 22:00 UTC |
| Parkside | nox | 27.01 | µg/m³ | 2020-12-01 00:00 UTC |
| Parkside | pm25 | 7.99 | µg/m³ | 2020-09-17 16:00 UTC |
| Brook Drive | no | 11.05 | µg/m³ | 2020-12-01 00:00 UTC |
| Brook Drive | no2 | 0.00772 | ppm | 2020-11-30 22:00 UTC |
| Brook Drive | nox | 33.98 | µg/m³ | 2020-12-01 00:00 UTC |
| Brook Drive | pm25 | 3.6 | µg/m³ | 2020-12-01 00:00 UTC |
| Grahame Park Way | no2 | 0.00273 | ppm | 2020-11-30 22:00 UTC |
| Grahame Park Way | pm25 | 2.78 | µg/m³ | 2020-12-01 00:00 UTC |
| Cecilia Road | no | 24.85 | µg/m³ | 2020-12-01 00:00 UTC |
| Cecilia Road | no2 | 0.0162 | ppm | 2020-11-30 22:00 UTC |
| Cecilia Road | nox | 56.23 | µg/m³ | 2020-12-01 00:00 UTC |
| Cecilia Road | pm25 | 7.87 | µg/m³ | 2020-10-02 06:00 UTC |
| Chigwell Road | no | 35.45 | µg/m³ | 2020-12-01 00:00 UTC |
| Chigwell Road | no2 | 0.01117 | ppm | 2020-11-30 22:00 UTC |
| Chigwell Road | nox | 60.84 | µg/m³ | 2020-12-01 00:00 UTC |
| Chigwell Road | pm25 | 2.17 | µg/m³ | 2020-12-01 00:00 UTC |
| St John's Upper Holloway CE Primary School | no | 11.09 | µg/m³ | 2020-12-01 00:00 UTC |
| St John's Upper Holloway CE Primary School | no2 | 0.00773 | ppm | 2020-11-30 22:00 UTC |
| St John's Upper Holloway CE Primary School | nox | 30.74 | µg/m³ | 2020-12-01 00:00 UTC |
| St John's Upper Holloway CE Primary School | pm25 | 5.33 | µg/m³ | 2020-12-01 00:00 UTC |
| Charing Cross Hospital | no | 17.81 | µg/m³ | 2020-11-30 15:00 UTC |
| Charing Cross Hospital | nox | 44.94 | µg/m³ | 2020-11-30 15:00 UTC |
| Charing Cross Hospital | pm25 | 2.04 | µg/m³ | 2020-12-01 00:00 UTC |
| Stockwell Road | no | 11.21 | µg/m³ | 2020-12-01 00:00 UTC |
| Stockwell Road | no2 | 0.01363 | ppm | 2020-11-30 22:00 UTC |
| Stockwell Road | nox | 40.07 | µg/m³ | 2020-12-01 00:00 UTC |
| Stockwell Road | pm25 | 4.23 | µg/m³ | 2020-12-01 00:00 UTC |
| Durham Street | no | 18.73 | µg/m³ | 2020-11-19 09:00 UTC |
| Durham Street | no2 | 0.01072 | ppm | 2020-11-19 09:00 UTC |
| Durham Street | nox | 46.12 | µg/m³ | 2020-11-19 09:00 UTC |
| Durham Street | pm25 | 36.78 | µg/m³ | 2020-11-19 09:00 UTC |
| Caledonian Road | no | 14.78 | µg/m³ | 2020-12-01 00:00 UTC |
| Caledonian Road | no2 | 0.01091 | ppm | 2020-11-30 22:00 UTC |
| Caledonian Road | nox | 38.4 | µg/m³ | 2020-12-01 00:00 UTC |
| Caledonian Road | pm25 | 4.98 | µg/m³ | 2020-12-01 00:00 UTC |
| Devas Street | no | 13.32 | µg/m³ | 2020-12-01 00:00 UTC |
| Devas Street | no2 | 0.00606 | ppm | 2020-11-30 22:00 UTC |
| Devas Street | nox | 29.43 | µg/m³ | 2020-12-01 00:00 UTC |
| Devas Street | pm25 | 16.24 | µg/m³ | 2020-11-30 17:00 UTC |
| Churchill Gardens Road | no | 9.25 | µg/m³ | 2019-07-22 15:00 UTC |
| Churchill Gardens Road | no2 | 0.01333 | ppm | 2019-07-22 15:00 UTC |
| Churchill Gardens Road | nox | 42.42 | µg/m³ | 2019-07-22 15:00 UTC |
| Churchill Gardens Road | pm25 | 8.82 | µg/m³ | 2019-07-22 16:00 UTC |
| Hendon Way | no | 8.61 | µg/m³ | 2020-12-01 00:00 UTC |
| Hendon Way | no2 | 0.01104 | ppm | 2020-11-30 22:00 UTC |
| Hendon Way | nox | 33.54 | µg/m³ | 2020-12-01 00:00 UTC |
| Hendon Way | pm25 | 7.37 | µg/m³ | 2020-12-01 00:00 UTC |
| Savernake Road | no | 6.57 | µg/m³ | 2020-12-01 00:00 UTC |
| Savernake Road | no2 | 0.01047 | ppm | 2020-11-30 22:00 UTC |
| Savernake Road | nox | 27.44 | µg/m³ | 2020-12-01 00:00 UTC |
| Savernake Road | pm25 | 4.19 | µg/m³ | 2020-12-01 00:00 UTC |
| Morpeth Street | no | 9.63 | µg/m³ | 2020-12-01 00:00 UTC |
| Morpeth Street | no2 | 0.00773 | ppm | 2020-11-30 22:00 UTC |
| Morpeth Street | nox | 29.23 | µg/m³ | 2020-12-01 00:00 UTC |
| Morpeth Street | pm25 | 4.6 | µg/m³ | 2020-12-01 00:00 UTC |
| Haimo Road | no | 2.37 | µg/m³ | 2020-12-01 00:00 UTC |
| Haimo Road | no2 | 0.00808 | ppm | 2020-11-30 22:00 UTC |
| Haimo Road | nox | 23.49 | µg/m³ | 2020-12-01 00:00 UTC |
| Haimo Road | pm25 | 5.22 | µg/m³ | 2020-12-01 00:00 UTC |
| Woolwich Road | no | 18.48 | µg/m³ | 2020-12-01 00:00 UTC |
| Woolwich Road | no2 | 0.012 | ppm | 2020-11-30 22:00 UTC |
| Woolwich Road | nox | 45.71 | µg/m³ | 2020-12-01 00:00 UTC |
| Woolwich Road | pm25 | 34.3 | µg/m³ | 2020-10-02 06:00 UTC |
| Dagnall Street | no | 19.37 | µg/m³ | 2020-12-01 00:00 UTC |
| Dagnall Street | no2 | 0.01137 | ppm | 2020-11-30 22:00 UTC |
| Dagnall Street | nox | 38.83 | µg/m³ | 2020-12-01 00:00 UTC |
| Dagnall Street | pm25 | 33.07 | µg/m³ | 2020-11-28 07:00 UTC |
| Queen Margarets Grove | no | 11.48 | µg/m³ | 2020-12-01 00:00 UTC |
| Queen Margarets Grove | no2 | 0.01223 | ppm | 2020-11-30 22:00 UTC |
| Queen Margarets Grove | nox | 35.75 | µg/m³ | 2020-12-01 00:00 UTC |
| Queen Margarets Grove | pm25 | 5.05 | µg/m³ | 2020-12-01 00:00 UTC |
| Kensington Church Walk | no | 21.69 | µg/m³ | 2020-06-01 14:00 UTC |
| Kensington Church Walk | no2 | 0.01619 | ppm | 2020-10-24 22:00 UTC |
| Kensington Church Walk | nox | 65.78 | µg/m³ | 2020-01-09 10:00 UTC |
| Kensington Church Walk | pm25 | 18.2 | µg/m³ | 2020-10-24 22:00 UTC |
| Hunslett Street | no | 4.96 | µg/m³ | 2020-10-30 11:00 UTC |
| Hunslett Street | no2 | 0.01622 | ppm | 2020-10-30 11:00 UTC |
| Hunslett Street | nox | 45.84 | µg/m³ | 2020-10-30 11:00 UTC |
| Hunslett Street | pm25 | 4.08 | µg/m³ | 2020-10-30 11:00 UTC |
| Albert Street | no | 15.82 | µg/m³ | 2020-12-01 00:00 UTC |
| Albert Street | no2 | 0.01071 | ppm | 2020-11-30 22:00 UTC |
| Albert Street | nox | 38.93 | µg/m³ | 2020-12-01 00:00 UTC |
| Albert Street | pm25 | 5.05 | µg/m³ | 2020-06-04 06:00 UTC |
| Peckham Road | no | 5.69 | µg/m³ | 2020-12-01 00:00 UTC |
| Peckham Road | no2 | 0.01504 | ppm | 2020-11-30 22:00 UTC |
| Peckham Road | nox | 34.98 | µg/m³ | 2020-12-01 00:00 UTC |
| Peckham Road | pm25 | 4.02 | µg/m³ | 2020-07-02 08:00 UTC |
| Ballance Road | no | 26.07 | µg/m³ | 2020-12-01 00:00 UTC |
| Ballance Road | no2 | 0.01146 | ppm | 2020-11-30 22:00 UTC |
| Ballance Road | nox | 48.54 | µg/m³ | 2020-12-01 00:00 UTC |
| Ballance Road | pm25 | 13.59 | µg/m³ | 2020-10-11 08:00 UTC |
| Haverstock Hill | no | 48.44 | µg/m³ | 2020-12-01 00:00 UTC |
| Haverstock Hill | no2 | 0.0163 | ppm | 2020-11-30 22:00 UTC |
| Haverstock Hill | nox | 73.72 | µg/m³ | 2020-12-01 00:00 UTC |
| Haverstock Hill | pm25 | 3.62 | µg/m³ | 2020-09-04 00:00 UTC |
| Oakdale Road | no | 12.72 | µg/m³ | 2020-12-01 00:00 UTC |
| Oakdale Road | no2 | 0.02656 | ppm | 2019-11-26 21:00 UTC |
| Oakdale Road | nox | 75.1 | µg/m³ | 2019-11-26 21:00 UTC |
| Oakdale Road | pm25 | 6.56 | µg/m³ | 2020-12-01 00:00 UTC |
| Ladbroke Grove | no | 12.48 | µg/m³ | 2020-12-01 00:00 UTC |
| Ladbroke Grove | no2 | 0.01064 | ppm | 2020-11-30 22:00 UTC |
| Ladbroke Grove | nox | 35.25 | µg/m³ | 2020-12-01 00:00 UTC |
| Ladbroke Grove | pm25 | 3.64 | µg/m³ | 2020-12-01 00:00 UTC |
| Wyndham Road | no | 23.23 | µg/m³ | 2020-11-30 15:00 UTC |
| Wyndham Road | no2 | 0.00186 | ppm | 2020-11-30 22:00 UTC |
| Wyndham Road | nox | 45.84 | µg/m³ | 2020-11-30 15:00 UTC |
| Wyndham Road | pm25 | 7.77 | µg/m³ | 2020-09-08 01:00 UTC |
| Whitehall | no | 27.03 | µg/m³ | 2020-06-11 01:00 UTC |
| Whitehall | no2 | 0.01327 | ppm | 2020-11-30 22:00 UTC |
| Whitehall | nox | 57.24 | µg/m³ | 2020-06-11 01:00 UTC |
| Whitehall | pm25 | 2.88 | µg/m³ | 2020-05-22 22:00 UTC |
| Commercial Street | pm25 | 2.8 | µg/m³ | 2020-12-01 00:00 UTC |
| Columbia Road | no | 6.04 | µg/m³ | 2020-11-01 00:00 UTC |
| Columbia Road | no2 | 0.01717 | ppm | 2019-11-01 17:00 UTC |
| Columbia Road | nox | 46.62 | µg/m³ | 2019-11-01 17:00 UTC |
| Columbia Road | pm25 | 16.93 | µg/m³ | 2020-11-01 01:00 UTC |
| Edgware Road | no | 11.96 | µg/m³ | 2020-12-01 00:00 UTC |
| Edgware Road | no2 | 0.01019 | ppm | 2020-11-30 22:00 UTC |
| Edgware Road | nox | 34.36 | µg/m³ | 2020-12-01 00:00 UTC |
| Edgware Road | pm25 | 10.82 | µg/m³ | 2020-09-24 22:00 UTC |
| Park Lane | no | 11.54 | µg/m³ | 2020-12-01 00:00 UTC |
| Park Lane | no2 | 0.02986 | ppm | 2020-11-19 20:00 UTC |
| Park Lane | nox | 123.27 | µg/m³ | 2020-11-19 20:00 UTC |
| Park Lane | pm25 | 24.1 | µg/m³ | 2020-08-27 18:00 UTC |
| Southbury Road | no | 35.8 | µg/m³ | 2020-12-01 00:00 UTC |
| Southbury Road | no2 | 0.0082 | ppm | 2020-11-30 22:00 UTC |
| Southbury Road | nox | 56.42 | µg/m³ | 2020-12-01 00:00 UTC |
| Southbury Road | pm25 | 6.35 | µg/m³ | 2020-12-01 00:00 UTC |
| St James | no | 6.16 | µg/m³ | 2020-12-01 00:00 UTC |
| St James | no2 | 0.00612 | ppm | 2020-11-30 22:00 UTC |
| St James | nox | 20.66 | µg/m³ | 2020-12-01 00:00 UTC |
| St James | pm25 | 6.26 | µg/m³ | 2020-10-07 23:00 UTC |
| Hertford Road | no | 17.54 | µg/m³ | 2020-12-01 00:00 UTC |
| Hertford Road | no2 | 0.00958 | ppm | 2020-11-30 22:00 UTC |
| Hertford Road | nox | 39.77 | µg/m³ | 2020-12-01 00:00 UTC |
| Hertford Road | pm25 | 10.12 | µg/m³ | 2020-12-01 00:00 UTC |
| Devonshire Street | no | 7.57 | µg/m³ | 2020-12-01 00:00 UTC |
| Devonshire Street | no2 | 0.00474 | ppm | 2020-11-30 22:00 UTC |
| Devonshire Street | nox | 19.14 | µg/m³ | 2020-12-01 00:00 UTC |
| Devonshire Street | pm25 | 8.23 | µg/m³ | 2020-12-01 00:00 UTC |
| Crowthorne Road | no | 58.99 | µg/m³ | 2020-11-20 09:00 UTC |
| Crowthorne Road | no2 | 0.01696 | ppm | 2020-11-20 09:00 UTC |
| Crowthorne Road | nox | 91.61 | µg/m³ | 2020-11-20 09:00 UTC |
| Crowthorne Road | pm25 | 6.95 | µg/m³ | 2020-11-20 09:00 UTC |
| Cadogan Gardens | no | 2.2 | µg/m³ | 2020-12-01 00:00 UTC |
| Cadogan Gardens | no2 | 0.0063 | ppm | 2020-11-30 22:00 UTC |
| Cadogan Gardens | nox | 18.41 | µg/m³ | 2020-12-01 00:00 UTC |
| Cadogan Gardens | pm25 | 4.35 | µg/m³ | 2020-12-01 00:00 UTC |
| Geraldine Street | no | 10.31 | µg/m³ | 2020-12-01 00:00 UTC |
| Geraldine Street | no2 | 0.00846 | ppm | 2020-11-30 22:00 UTC |
| Geraldine Street | nox | 24.88 | µg/m³ | 2020-12-01 00:00 UTC |
| Geraldine Street | pm25 | 5.53 | µg/m³ | 2020-12-01 00:00 UTC |
| Station Parade | no | 44.65 | µg/m³ | 2020-08-27 17:00 UTC |
| Station Parade | no2 | 0.04137 | ppm | 2020-08-27 17:00 UTC |
| Station Parade | nox | 126.52 | µg/m³ | 2020-08-27 17:00 UTC |
| Station Parade | pm25 | 5.51 | µg/m³ | 2020-08-25 23:00 UTC |
| Whipps Cross University Hospital | pm25 | 2.48 | µg/m³ | 2020-12-01 00:00 UTC |
| Marylebone | no | 8.62 | µg/m³ | 2020-12-01 00:00 UTC |
| Marylebone | no2 | 0.0086 | ppm | 2020-11-30 22:00 UTC |
| Marylebone | nox | 28.6 | µg/m³ | 2020-12-01 00:00 UTC |
| Marylebone | pm25 | 3.91 | µg/m³ | 2020-12-01 00:00 UTC |
| St Thomas's Hospital | pm25 | 2.41 | µg/m³ | 2020-12-01 00:00 UTC |
| Mansford Street | no | 2.79 | µg/m³ | 2020-12-01 00:00 UTC |
| Mansford Street | no2 | 0.01178 | ppm | 2020-11-30 22:00 UTC |
| Mansford Street | nox | 28.28 | µg/m³ | 2020-12-01 00:00 UTC |
| Mansford Street | pm25 | 3.68 | µg/m³ | 2020-12-01 00:00 UTC |
| Bonington Road | no | 2.94 | µg/m³ | 2020-12-01 00:00 UTC |
| Bonington Road | no2 | 0.0032 | ppm | 2020-11-30 22:00 UTC |
| Bonington Road | nox | 16.22 | µg/m³ | 2020-12-01 00:00 UTC |
| Bonington Road | pm25 | 3.32 | µg/m³ | 2020-08-03 07:00 UTC |
| Camberwell Road | no | 7.52 | µg/m³ | 2020-12-01 00:00 UTC |
| Camberwell Road | no2 | 0.00854 | ppm | 2020-11-30 22:00 UTC |
| Camberwell Road | nox | 28.62 | µg/m³ | 2020-12-01 00:00 UTC |
| Camberwell Road | pm25 | 40.08 | µg/m³ | 2020-09-23 19:00 UTC |
| Blomfontein Road | no | 18.22 | µg/m³ | 2020-12-01 00:00 UTC |
| Blomfontein Road | no2 | 0.01175 | ppm | 2020-11-30 22:00 UTC |
| Blomfontein Road | nox | 44.33 | µg/m³ | 2020-12-01 00:00 UTC |
| Blomfontein Road | pm25 | 3.93 | µg/m³ | 2020-12-01 00:00 UTC |
| The Royal London Hospital | no | 25.27 | µg/m³ | 2020-11-30 18:00 UTC |
| The Royal London Hospital | nox | 54.21 | µg/m³ | 2020-11-30 18:00 UTC |
| The Royal London Hospital | pm25 | 1.8 | µg/m³ | 2020-12-01 00:00 UTC |
| Upper Richmond Road | no | 14.24 | µg/m³ | 2020-12-01 00:00 UTC |
| Upper Richmond Road | no2 | 0.00315 | ppm | 2020-11-30 22:00 UTC |
| Upper Richmond Road | nox | 23.45 | µg/m³ | 2020-12-01 00:00 UTC |
| Upper Richmond Road | pm25 | 30.92 | µg/m³ | 2020-11-30 14:00 UTC |
| Pemberton Gardens | no | 8.72 | µg/m³ | 2020-12-01 00:00 UTC |
| Pemberton Gardens | no2 | 0.00966 | ppm | 2020-11-30 22:00 UTC |
| Pemberton Gardens | nox | 30.74 | µg/m³ | 2020-12-01 00:00 UTC |
| Pemberton Gardens | pm25 | 0.3 | µg/m³ | 2020-12-01 00:00 UTC |
| Whitecross | no | 8.29 | µg/m³ | 2020-12-01 00:00 UTC |
| Whitecross | nox | 14.52 | µg/m³ | 2019-11-02 07:00 UTC |
| Whitecross | pm25 | 3.89 | µg/m³ | 2020-12-01 00:00 UTC |
| Cornwall Road | no | 8.35 | µg/m³ | 2020-12-01 00:00 UTC |
| Cornwall Road | no2 | 0.00693 | ppm | 2020-11-30 22:00 UTC |
| Cornwall Road | nox | 25.82 | µg/m³ | 2020-12-01 00:00 UTC |
| Cornwall Road | pm25 | 5.57 | µg/m³ | 2020-12-01 00:00 UTC |
| Roehampton Lane | no | 3.48 | µg/m³ | 2020-06-23 01:00 UTC |
| Roehampton Lane | no2 | 0.00938 | ppm | 2020-11-30 22:00 UTC |
| Roehampton Lane | nox | 35.02 | µg/m³ | 2020-06-23 01:00 UTC |
| Roehampton Lane | pm25 | 3.67 | µg/m³ | 2020-06-19 20:00 UTC |
| Holloway Road | no | 19.51 | µg/m³ | 2020-12-01 00:00 UTC |
| Holloway Road | no2 | 0.01403 | ppm | 2020-11-30 22:00 UTC |
| Holloway Road | nox | 44.9 | µg/m³ | 2020-12-01 00:00 UTC |
| Holloway Road | pm25 | 4.59 | µg/m³ | 2020-12-01 00:00 UTC |
| Drury Lane | no | 8.69 | µg/m³ | 2020-12-01 00:00 UTC |
| Drury Lane | no2 | 0.00923 | ppm | 2020-11-30 22:00 UTC |
| Drury Lane | nox | 31.68 | µg/m³ | 2020-12-01 00:00 UTC |
| Drury Lane | pm25 | 3.58 | µg/m³ | 2020-12-01 00:00 UTC |
| Pattison Road | no | 10.15 | µg/m³ | 2020-12-01 00:00 UTC |
| Pattison Road | no2 | 0.01253 | ppm | 2020-11-30 22:00 UTC |
| Pattison Road | nox | 34.75 | µg/m³ | 2020-12-01 00:00 UTC |
| Pattison Road | pm25 | 6.11 | µg/m³ | 2020-12-01 00:00 UTC |
| Wood Lane | no | 5.53 | µg/m³ | 2020-10-28 02:00 UTC |
| Wood Lane | no2 | 0.0102 | ppm | 2020-10-28 02:00 UTC |
| Wood Lane | nox | 34.43 | µg/m³ | 2020-10-28 02:00 UTC |
| Wood Lane | pm25 | 2.81 | µg/m³ | 2020-10-28 02:00 UTC |
| Laystall St | no | 1.73 | µg/m³ | 2020-06-23 01:00 UTC |
| Laystall St | no2 | 0.0075 | ppm | 2020-11-30 22:00 UTC |
| Laystall St | nox | 31.01 | µg/m³ | 2020-06-23 01:00 UTC |
| Laystall St | pm25 | 27.08 | µg/m³ | 2020-06-22 09:00 UTC |
| Lollard Street | no | 2.53 | µg/m³ | 2020-09-18 01:00 UTC |
| Lollard Street | no2 | 0.02184 | ppm | 2020-09-18 01:00 UTC |
| Lollard Street | nox | 50.31 | µg/m³ | 2020-09-18 01:00 UTC |
| Lollard Street | pm25 | 3.18 | µg/m³ | 2020-09-18 01:00 UTC |
| Monnery Road | no | 12.93 | µg/m³ | 2020-12-01 00:00 UTC |
| Monnery Road | no2 | 0.00958 | ppm | 2020-11-30 22:00 UTC |
| Monnery Road | nox | 35.25 | µg/m³ | 2020-12-01 00:00 UTC |
| Monnery Road | pm25 | 0.45 | µg/m³ | 2020-11-30 19:00 UTC |
| Romford Road | no | 41.57 | µg/m³ | 2020-12-01 00:00 UTC |
| Romford Road | no2 | 0.01245 | ppm | 2020-11-30 22:00 UTC |
| Romford Road | nox | 65.11 | µg/m³ | 2020-12-01 00:00 UTC |
| Romford Road | pm25 | 3.16 | µg/m³ | 2020-12-01 00:00 UTC |
| Wandsworth Road | no | 7.93 | µg/m³ | 2020-06-05 01:00 UTC |
| Wandsworth Road | no2 | 0.00969 | ppm | 2020-06-05 01:00 UTC |
| Wandsworth Road | nox | 35.06 | µg/m³ | 2020-06-05 01:00 UTC |
| Wandsworth Road | pm25 | 5.12 | µg/m³ | 2020-08-21 05:00 UTC |
| Ellenborough Road | no | 8.38 | µg/m³ | 2020-12-01 00:00 UTC |
| Ellenborough Road | no2 | 0.00226 | ppm | 2020-11-30 22:00 UTC |
| Ellenborough Road | nox | 19.91 | µg/m³ | 2020-12-01 00:00 UTC |
| Ellenborough Road | pm25 | 3.69 | µg/m³ | 2020-12-01 00:00 UTC |
| Kew Road | no | 158.01 | µg/m³ | 2019-11-06 13:00 UTC |
| Kew Road | no2 | 0.00851 | ppm | 2020-11-30 22:00 UTC |
| Kew Road | nox | 207.99 | µg/m³ | 2019-11-06 13:00 UTC |
| Kew Road | pm25 | 3.96 | µg/m³ | 2020-09-17 00:00 UTC |
| Lancell Street | no | 7.82 | µg/m³ | 2020-12-01 00:00 UTC |
| Lancell Street | no2 | 0.00586 | ppm | 2020-11-30 22:00 UTC |
| Lancell Street | nox | 22.89 | µg/m³ | 2020-12-01 00:00 UTC |
| Lancell Street | pm25 | 3.64 | µg/m³ | 2020-12-01 00:00 UTC |
| Borough High Street | no | 6.11 | µg/m³ | 2020-05-28 02:00 UTC |
| Borough High Street | no2 | 0.01862 | ppm | 2020-05-28 02:00 UTC |
| Borough High Street | nox | 49.92 | µg/m³ | 2020-05-28 02:00 UTC |
| Borough High Street | pm25 | 5.68 | µg/m³ | 2020-05-28 02:00 UTC |
| The Vale | no | 10.58 | µg/m³ | 2020-12-01 00:00 UTC |
| The Vale | no2 | 0.00375 | ppm | 2020-11-30 22:00 UTC |
| The Vale | nox | 23.43 | µg/m³ | 2020-12-01 00:00 UTC |
| The Vale | pm25 | 4.04 | µg/m³ | 2020-12-01 00:00 UTC |
| St Anns Hill | no | 5.9 | µg/m³ | 2020-12-01 00:00 UTC |
| St Anns Hill | no2 | 0.00571 | ppm | 2020-11-30 22:00 UTC |
| St Anns Hill | nox | 23.21 | µg/m³ | 2020-12-01 00:00 UTC |
| St Anns Hill | pm25 | 3.54 | µg/m³ | 2020-12-01 00:00 UTC |
| Royal Free Hospital | no | 27.26 | µg/m³ | 2020-11-30 16:00 UTC |
| Royal Free Hospital | nox | 61.08 | µg/m³ | 2020-11-30 16:00 UTC |
| Royal Free Hospital | pm25 | 9.59 | µg/m³ | 2020-09-01 05:00 UTC |
| Hanworth Road | no | 45.51 | µg/m³ | 2020-12-01 00:00 UTC |
| Hanworth Road | no2 | 0.01337 | ppm | 2020-11-30 22:00 UTC |
| Hanworth Road | nox | 73.77 | µg/m³ | 2020-12-01 00:00 UTC |
| Hanworth Road | pm25 | 5.5 | µg/m³ | 2020-12-01 00:00 UTC |
| Markfield Road | no | 20.03 | µg/m³ | 2019-11-24 18:00 UTC |
| Markfield Road | no2 | 0.00976 | ppm | 2020-11-30 22:00 UTC |
| Markfield Road | nox | 60.54 | µg/m³ | 2019-11-24 18:00 UTC |
| Markfield Road | pm25 | 3.36 | µg/m³ | 2020-12-01 00:00 UTC |
| Garrett Lane | no | 34.09 | µg/m³ | 2020-12-01 00:00 UTC |
| Garrett Lane | no2 | 0.014 | ppm | 2020-11-30 22:00 UTC |
| Garrett Lane | nox | 61.7 | µg/m³ | 2020-12-01 00:00 UTC |
| Garrett Lane | pm25 | 4.34 | µg/m³ | 2020-12-01 00:00 UTC |
| Rosebery Avenue | no | 13.1 | µg/m³ | 2020-12-01 00:00 UTC |
| Rosebery Avenue | no2 | 0.00908 | ppm | 2020-11-30 22:00 UTC |
| Rosebery Avenue | nox | 31.92 | µg/m³ | 2020-12-01 00:00 UTC |
| Rosebery Avenue | pm25 | 6.86 | µg/m³ | 2020-09-17 17:00 UTC |
| Tower Bridge Road | no | 22.02 | µg/m³ | 2020-12-01 00:00 UTC |
| Tower Bridge Road | no2 | 0.01403 | ppm | 2020-11-30 22:00 UTC |
| Tower Bridge Road | nox | 46.23 | µg/m³ | 2020-12-01 00:00 UTC |
| Tower Bridge Road | pm25 | 4.66 | µg/m³ | 2020-12-01 00:00 UTC |
| Cowcross Street | no | 37.67 | µg/m³ | 2020-04-07 00:00 UTC |
| Cowcross Street | no2 | 0.00935 | ppm | 2020-11-30 22:00 UTC |
| Cowcross Street | nox | 71.59 | µg/m³ | 2020-04-07 00:00 UTC |
| Cowcross Street | pm25 | 14.93 | µg/m³ | 2020-12-01 00:00 UTC |
| Fulham Palace Road | no | 13.63 | µg/m³ | 2020-12-01 00:00 UTC |
| Fulham Palace Road | no2 | 0.0058 | ppm | 2020-11-30 22:00 UTC |
| Fulham Palace Road | nox | 25.49 | µg/m³ | 2020-12-01 00:00 UTC |
| Fulham Palace Road | pm25 | 3.57 | µg/m³ | 2020-12-01 00:00 UTC |
| Holloway Road | no | 0.9 | µg/m³ | 2019-09-17 02:00 UTC |
| Holloway Road | no2 | 0.01278 | ppm | 2019-09-17 02:00 UTC |
| Holloway Road | nox | 26.31 | µg/m³ | 2019-09-17 02:00 UTC |
| Holloway Road | pm25 | 25.72 | µg/m³ | 2019-09-17 02:00 UTC |
| Newham University Hospital | no | 25.73 | µg/m³ | 2020-11-30 16:00 UTC |
| Newham University Hospital | nox | 62.24 | µg/m³ | 2020-11-30 16:00 UTC |
| Newham University Hospital | pm25 | 2.71 | µg/m³ | 2020-12-01 00:00 UTC |
| Robin Hood Health Centre | no | 8.92 | µg/m³ | 2020-12-01 00:00 UTC |
| Robin Hood Health Centre | no2 | 0.01156 | ppm | 2020-11-30 22:00 UTC |
| Robin Hood Health Centre | nox | 36.53 | µg/m³ | 2020-12-01 00:00 UTC |
| Robin Hood Health Centre | pm25 | 12.2 | µg/m³ | 2020-12-01 00:00 UTC |
| Broadway Street | no | 21.29 | µg/m³ | 2020-12-01 00:00 UTC |
| Broadway Street | no2 | 0.01122 | ppm | 2020-11-30 22:00 UTC |
| Broadway Street | nox | 44.37 | µg/m³ | 2020-12-01 00:00 UTC |
| Broadway Street | pm25 | 6.24 | µg/m³ | 2020-12-01 00:00 UTC |
| Triangle Adventure Playground | no | 12.4 | µg/m³ | 2020-12-01 00:00 UTC |
| Triangle Adventure Playground | no2 | 0.01172 | ppm | 2020-11-30 22:00 UTC |
| Triangle Adventure Playground | nox | 36.82 | µg/m³ | 2020-12-01 00:00 UTC |
| Triangle Adventure Playground | pm25 | 4.15 | µg/m³ | 2020-12-01 00:00 UTC |
| Beaumont Grove | no | 9.08 | µg/m³ | 2020-12-01 00:00 UTC |
| Beaumont Grove | no2 | 0.01224 | ppm | 2020-11-30 22:00 UTC |
| Beaumont Grove | nox | 32.02 | µg/m³ | 2020-12-01 00:00 UTC |
| Beaumont Grove | pm25 | 7.02 | µg/m³ | 2020-04-25 18:00 UTC |
| Exhibition Road | no | 11.38 | µg/m³ | 2020-12-01 00:00 UTC |
| Exhibition Road | no2 | 0.01422 | ppm | 2020-11-30 22:00 UTC |
| Exhibition Road | nox | 37.88 | µg/m³ | 2020-12-01 00:00 UTC |
| Exhibition Road | pm25 | 4.54 | µg/m³ | 2020-12-01 00:00 UTC |
| Great Ormond St Hospital | no | 36.03 | µg/m³ | 2020-12-01 00:00 UTC |
| Great Ormond St Hospital | no2 | 0.01095 | ppm | 2020-11-30 22:00 UTC |
| Great Ormond St Hospital | nox | 59.39 | µg/m³ | 2020-12-01 00:00 UTC |
| Great Ormond St Hospital | pm25 | 4.72 | µg/m³ | 2020-09-10 09:00 UTC |
| Blackfriars Road | pm25 | 10.42 | µg/m³ | 2020-06-23 01:00 UTC |
| Larkshall Road | no | 13.01 | µg/m³ | 2020-10-16 01:00 UTC |
| Larkshall Road | no2 | 0.01246 | ppm | 2020-10-16 01:00 UTC |
| Larkshall Road | nox | 37.67 | µg/m³ | 2020-10-16 01:00 UTC |
| Larkshall Road | pm25 | 5.76 | µg/m³ | 2020-10-14 12:00 UTC |
| London Road | no | 20.95 | µg/m³ | 2020-09-29 01:00 UTC |
| London Road | no2 | 0.01108 | ppm | 2019-12-20 14:00 UTC |
| London Road | nox | 93.55 | µg/m³ | 2019-12-20 14:00 UTC |
| London Road | pm25 | 3.35 | µg/m³ | 2020-09-23 23:00 UTC |
| Hendon Street | no | 8.07 | µg/m³ | 2020-12-01 00:00 UTC |
| Hendon Street | no2 | 0.00737 | ppm | 2020-11-30 22:00 UTC |
| Hendon Street | nox | 25.48 | µg/m³ | 2020-12-01 00:00 UTC |
| Hendon Street | pm25 | 4.5 | µg/m³ | 2020-12-01 00:00 UTC |
| Dollis Road | no | 11.99 | µg/m³ | 2020-12-01 00:00 UTC |
| Dollis Road | no2 | 0.00439 | ppm | 2020-11-30 22:00 UTC |
| Dollis Road | nox | 25.47 | µg/m³ | 2020-12-01 00:00 UTC |
| Dollis Road | pm25 | 4.45 | µg/m³ | 2020-12-01 00:00 UTC |
| Bexley - Belvedere West | no2 | 35.1 | µg/m³ | 2026-02-10 19:00 UTC |
| Bexley - Belvedere West | o3 | 17.1 | µg/m³ | 2026-02-10 19:00 UTC |
| Bexley - Belvedere West | pm10 | 7.2 | µg/m³ | 2026-02-10 19:00 UTC |
| Bexley - Belvedere West | pm25 | 5.2 | µg/m³ | 2026-02-10 19:00 UTC |
| Enfield - Derby Road | no2 | 32.6 | µg/m³ | 2026-02-10 19:00 UTC |
| Barking and Dagenham - Rush Green | no2 | 4.0 | µg/m³ | 2025-05-29 16:00 UTC |
| Barking and Dagenham - Rush Green | so2 | 0.7 | µg/m³ | 2025-05-29 16:00 UTC |
| Croydon - Norbury | no2 | 49.8 | µg/m³ | 2026-02-10 19:00 UTC |
| Greenwich - Blackheath | no2 | 35.5 | µg/m³ | 2026-02-10 13:00 UTC |
| Greenwich - Blackheath | pm10 | 7.2 | µg/m³ | 2026-02-10 19:00 UTC |
| Enfield - Bowes Primary School | no2 | 47.4 | µg/m³ | 2026-02-10 19:00 UTC |
| Enfield - Bowes Primary School | pm10 | 9.6 | µg/m³ | 2026-02-10 19:00 UTC |
| Enfield - Bowes Primary School | pm25 | 7.4 | µg/m³ | 2026-02-10 19:00 UTC |
| Brent - ARK Franklin Primary Academy | no2 | 33.3 | µg/m³ | 2026-02-10 19:00 UTC |
| Brent - ARK Franklin Primary Academy | pm10 | 6.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Brent - ARK Franklin Primary Academy | pm25 | 9.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Bexley - Belvedere | no2 | 46.5 | µg/m³ | 2026-02-10 19:00 UTC |
| Bexley - Belvedere | pm10 | 7.4 | µg/m³ | 2026-02-10 19:00 UTC |
| Bexley - Belvedere | pm25 | 5.1 | µg/m³ | 2026-02-10 19:00 UTC |
| Brent - Neasden Lane | no2 | 40.2 | µg/m³ | 2026-02-10 19:00 UTC |
| Brent - Neasden Lane | pm10 | 9.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Brent - Neasden Lane | pm25 | 8.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Camden - Holborn (Bee Midtown) | no2 | 22.2 | µg/m³ | 2023-05-05 09:00 UTC |
| Brent - John Keble Primary School | no2 | 40.5 | µg/m³ | 2026-02-10 19:00 UTC |
| Brent - John Keble Primary School | pm10 | 10.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Brent - John Keble Primary School | pm25 | 5.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Brent - Ikea | no2 | 62.3 | µg/m³ | 2026-02-10 19:00 UTC |
| Brent - Ikea | o3 | 3.1 | µg/m³ | 2026-01-14 10:00 UTC |
| Brent - Ikea | pm10 | 13.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Brent - Ikea | pm25 | 14.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Bromley - Harwood Avenue | no2 | 54.1 | µg/m³ | 2026-01-05 08:00 UTC |
| Bromley - Harwood Avenue | pm10 | 8.0 | µg/m³ | 2026-01-05 08:00 UTC |
| Bromley - Harwood Avenue | pm25 | 12.0 | µg/m³ | 2026-01-05 08:00 UTC |
| Barking and Dagenham - Scrattons Farm | no2 | 10.4 | µg/m³ | 2025-10-11 09:00 UTC |
| Barking and Dagenham - Scrattons Farm | pm10 | 24.8 | µg/m³ | 2025-11-06 09:00 UTC |
| Enfield - Prince of Wales School | no2 | 19.8 | µg/m³ | 2026-02-10 19:00 UTC |
| Ealing - Hanger Lane Gyratory | no2 | 11.0 | µg/m³ | 2025-12-23 07:00 UTC |
| Ealing - Hanger Lane Gyratory | pm10 | 17.6 | µg/m³ | 2026-01-05 09:00 UTC |
| Croydon - Purley Way A23 | no2 | 15.3 | µg/m³ | 2026-02-10 19:00 UTC |
| Enfield - Bush Hill Park | no2 | 26.8 | µg/m³ | 2026-02-10 19:00 UTC |
| Ealing - Acton Vale | no2 | 57.0 | µg/m³ | 2025-02-03 08:00 UTC |
| Ealing - Acton Vale | pm10 | 45.4 | µg/m³ | 2025-02-14 21:00 UTC |
| Ealing - Western Avenue | no2 | 68.9 | µg/m³ | 2026-01-05 09:00 UTC |
| Ealing - Western Avenue | pm10 | 22.6 | µg/m³ | 2026-01-05 08:00 UTC |
| Greenwich - A206 Burrage Grove | no2 | 22.9 | µg/m³ | 2026-02-10 09:00 UTC |
| Greenwich - A206 Burrage Grove | pm10 | 7.3 | µg/m³ | 2026-02-10 08:00 UTC |
| Greenwich - A206 Burrage Grove | pm25 | 13.0 | µg/m³ | 2026-02-10 09:00 UTC |
| Greenwich - Plumstead High Street | no2 | 15.6 | µg/m³ | 2026-02-10 11:00 UTC |
| Greenwich - Plumstead High Street | o3 | 47.0 | µg/m³ | 2026-02-10 11:00 UTC |
| Greenwich - Plumstead High Street | pm10 | 9.2 | µg/m³ | 2026-02-10 11:00 UTC |
| Greenwich - Plumstead High Street | pm25 | 5.1 | µg/m³ | 2026-02-10 11:00 UTC |
| Redbridge - Gardner Close | no2 | 19.8 | µg/m³ | 2024-04-03 11:00 UTC |
| Redbridge - Gardner Close | pm10 | 6.0 | µg/m³ | 2024-04-01 06:00 UTC |
| Greenwich - John Harrison Way | no2 | 22.6 | µg/m³ | 2026-02-10 06:00 UTC |
| Greenwich - John Harrison Way | pm10 | 2.7 | µg/m³ | 2026-02-10 08:00 UTC |
| Greenwich - John Harrison Way | pm25 | 0.0 | µg/m³ | 2026-02-10 09:00 UTC |
| Hackney - Old Street | no2 | 31.1 | µg/m³ | 2023-07-08 06:00 UTC |
| Hackney - Old Street | o3 | 24.7 | µg/m³ | 2022-10-12 09:00 UTC |
| Hackney - Old Street | pm10 | 14.6 | µg/m³ | 2023-07-08 06:00 UTC |
| Hackney - Old Street | pm25 | 9.0 | µg/m³ | 2023-01-29 19:00 UTC |
| Kingston Upon Thames - Cromwell Road | no2 | 24.2 | µg/m³ | 2024-06-19 11:00 UTC |
| Kingston Upon Thames - Cromwell Road | pm10 | 28.0 | µg/m³ | 2024-06-19 11:00 UTC |
| Greenwich - Woolwich Flyover | no2 | 53.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Greenwich - Woolwich Flyover | o3 | 55.4 | µg/m³ | 2023-05-22 12:00 UTC |
| Greenwich - Woolwich Flyover | pm10 | 9.1 | µg/m³ | 2026-02-10 19:00 UTC |
| Greenwich - Woolwich Flyover | pm25 | 12.0 | µg/m³ | 2025-04-14 02:00 UTC |
| Havering - Rainham | no2 | 28.1 | µg/m³ | 2026-02-10 12:00 UTC |
| Havering - Rainham | pm10 | 0.0 | µg/m³ | 2025-04-14 11:00 UTC |
| Havering - Rainham | pm25 | 0.0 | µg/m³ | 2025-04-14 11:00 UTC |
| Kingston Upon Thames - Tolworth Broadway | no2 | 9.3 | µg/m³ | 2024-06-10 13:00 UTC |
| Kingston Upon Thames - Tolworth Broadway | pm10 | 12.0 | µg/m³ | 2022-05-24 06:00 UTC |
| Lewisham - New Cross | no2 | 19.3 | µg/m³ | 2025-04-01 00:00 UTC |
| Lewisham - New Cross | pm10 | 16.0 | µg/m³ | 2025-04-01 00:00 UTC |
| Lewisham - New Cross | pm25 | 11.0 | µg/m³ | 2025-04-01 00:00 UTC |
| Lewisham - Deptford | no2 | 17.7 | µg/m³ | 2025-04-01 08:00 UTC |
| Lewisham - Deptford | pm25 | 14.0 | µg/m³ | 2025-04-01 08:00 UTC |
| Lambeth - Brixton Road | no2 | 67.1 | µg/m³ | 2026-02-10 19:00 UTC |
| Lambeth - Brixton Road | pm10 | 7.8 | µg/m³ | 2026-02-10 19:00 UTC |
| Lambeth - Brixton Road | pm25 | 7.1 | µg/m³ | 2026-02-10 19:00 UTC |
| Greenwich - Fiveways Sidcup Rd A20 | no2 | 41.9 | µg/m³ | 2026-02-10 19:00 UTC |
| Greenwich - Fiveways Sidcup Rd A20 | pm10 | 8.1 | µg/m³ | 2026-02-10 19:00 UTC |
| Newham - Cam Road | no2 | 18.5 | µg/m³ | 2024-04-02 10:00 UTC |
| Newham - Cam Road | pm10 | 9.0 | µg/m³ | 2024-04-02 10:00 UTC |
| Newham - Cam Road | pm25 | 1.0 | µg/m³ | 2024-04-02 10:00 UTC |
| Richmond Upon Thames - Barnes Wetlands | no2 | 38.5 | µg/m³ | 2026-02-10 19:00 UTC |
| Richmond Upon Thames - Barnes Wetlands | o3 | 40.8 | µg/m³ | 2026-02-10 19:00 UTC |
| Richmond Upon Thames - Barnes Wetlands | pm10 | 6.8 | µg/m³ | 2026-02-10 19:00 UTC |
| Richmond Upon Thames - Barnes Wetlands | pm25 | 5.1 | µg/m³ | 2026-02-10 19:00 UTC |
| Newham - Wren Close | no2 | 8.1 | µg/m³ | 2024-03-28 14:00 UTC |
| Newham - Wren Close | pm10 | 13.0 | µg/m³ | 2024-03-28 14:00 UTC |
| Newham - Wren Close | pm25 | 10.0 | µg/m³ | 2024-03-28 14:00 UTC |
| Merton - Merton Road | no2 | 35.6 | µg/m³ | 2026-02-10 19:00 UTC |
| Merton - Merton Road | pm10 | 12.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Merton - Merton Road | pm25 | 14.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Merton - Morden Civic Centre 2 | no2 | 29.5 | µg/m³ | 2026-02-10 19:00 UTC |
| Lewisham - Loampit Vale | no2 | 23.3 | µg/m³ | 2025-04-01 09:00 UTC |
| Lewisham - Loampit Vale | pm10 | 43.0 | µg/m³ | 2025-04-01 08:00 UTC |
| Haringey - Priory Park South | no2 | 22.0 | µg/m³ | 2026-02-10 01:00 UTC |
| Haringey - Priory Park South | o3 | 25.9 | µg/m³ | 2026-02-10 01:00 UTC |
| Harrow - Pinner Road | no2 | 5.6 | µg/m³ | 2022-08-09 08:00 UTC |
| Harrow - Pinner Road | pm10 | 25.1 | µg/m³ | 2022-08-10 12:00 UTC |
| Kingston Upon Thames - Kingston Vale | no2 | 4.5 | µg/m³ | 2024-06-15 01:00 UTC |
| Kingston Upon Thames - Kingston Vale | pm10 | 10.0 | µg/m³ | 2024-06-15 02:00 UTC |
| Islington - Arsenal | no2 | 20.4 | µg/m³ | 2026-02-10 11:00 UTC |
| Islington - Arsenal | pm10 | 5.2 | µg/m³ | 2026-02-09 08:00 UTC |
| Islington - Arsenal | pm25 | 4.2 | µg/m³ | 2026-02-09 08:00 UTC |
| Lambeth - Bondway Interchange | no2 | 14.4 | µg/m³ | 2023-06-27 01:00 UTC |
| Lambeth - Bondway Interchange | pm10 | 4.0 | µg/m³ | 2023-07-26 20:00 UTC |
| Lambeth - Bondway Interchange | so2 | 4.5 | µg/m³ | 2023-06-26 04:00 UTC |
| Lambeth - Streatham Green | no2 | 30.7 | µg/m³ | 2026-02-10 19:00 UTC |
| Lambeth - Streatham Green | pm10 | 7.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Southwark - Tower Bridge Road | no2 | 43.4 | µg/m³ | 2025-03-31 09:00 UTC |
| Southwark - Tower Bridge Road | pm10 | 18.1 | µg/m³ | 2025-03-31 09:00 UTC |
| Southwark - Tower Bridge Road | pm25 | 7.1 | µg/m³ | 2025-03-31 09:00 UTC |
| Havering - Romford | no2 | 25.0 | µg/m³ | 2026-01-26 09:00 UTC |
| Havering - Romford | pm10 | 132.1 | µg/m³ | 2026-01-27 20:00 UTC |
| Redbridge - Ley Street | no2 | 10.4 | µg/m³ | 2024-04-03 11:00 UTC |
| Redbridge - Ley Street | o3 | 72.1 | µg/m³ | 2024-04-03 11:00 UTC |
| Redbridge - Ley Street | pm10 | 13.0 | µg/m³ | 2024-03-30 23:00 UTC |
| Redbridge - Ley Street | pm25 | 2.0 | µg/m³ | 2024-04-03 07:00 UTC |
| Islington - Holloway Road | no2 | 37.7 | µg/m³ | 2026-02-10 19:00 UTC |
| Islington - Holloway Road | pm10 | 11.4 | µg/m³ | 2026-02-10 19:00 UTC |
| Islington - Holloway Road | pm25 | 11.9 | µg/m³ | 2026-02-10 19:00 UTC |
| Sutton - Beddington Village | no2 | 36.4 | µg/m³ | 2024-06-21 06:00 UTC |
| Sutton - Beddington Village | pm10 | 20.0 | µg/m³ | 2024-06-21 06:00 UTC |
| Southwark - Elephant and Castle | no2 | 27.4 | µg/m³ | 2025-03-31 08:00 UTC |
| Southwark - Elephant and Castle | o3 | 46.1 | µg/m³ | 2025-03-31 08:00 UTC |
| Southwark - Elephant and Castle | pm10 | 18.1 | µg/m³ | 2025-03-31 08:00 UTC |
| Southwark - Elephant and Castle | pm25 | 7.1 | µg/m³ | 2025-03-31 08:00 UTC |
| Southwark - Lower Road | no2 | 18.2 | µg/m³ | 2025-03-31 10:00 UTC |
| Southwark - Lower Road | pm10 | 10.2 | µg/m³ | 2025-03-31 11:00 UTC |
| Southwark - Lower Road | pm25 | 4.0 | µg/m³ | 2025-03-31 11:00 UTC |
| Greenwich - Falconwood FDMS | no2 | 42.7 | µg/m³ | 2026-02-10 19:00 UTC |
| Greenwich - Falconwood FDMS | o3 | 21.2 | µg/m³ | 2026-02-10 19:00 UTC |
| Greenwich - Falconwood FDMS | pm10 | 12.2 | µg/m³ | 2026-02-10 19:00 UTC |
| Greenwich - Falconwood FDMS | pm25 | 6.9 | µg/m³ | 2026-02-10 19:00 UTC |
| Greenwich - Westhorne Avenue | no2 | 37.4 | µg/m³ | 2026-02-10 19:00 UTC |
| Greenwich - Westhorne Avenue | o3 | 46.1 | µg/m³ | 2025-10-07 11:00 UTC |
| Greenwich - Westhorne Avenue | pm10 | 10.5 | µg/m³ | 2026-02-10 19:00 UTC |
| Greenwich - Westhorne Avenue | pm25 | 9.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Greenwich - Trafalgar Road (Hoskins St) | no2 | 42.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Greenwich - Trafalgar Road (Hoskins St) | pm10 | 8.9 | µg/m³ | 2026-02-10 19:00 UTC |
| Westminster - Elizabeth Bridge | no2 | 31.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Westminster - Elizabeth Bridge | pm25 | 4.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Southwark - Vicarage Grove | no2 | 21.0 | µg/m³ | 2025-03-31 12:00 UTC |
| Southwark - Vicarage Grove | pm10 | 11.0 | µg/m³ | 2025-03-31 13:00 UTC |
| Southwark - Vicarage Grove | pm25 | 4.6 | µg/m³ | 2025-03-31 13:00 UTC |
| London Honor Oak Park - UKA00656 | no2 | 21.5 | µg/m³ | 2026-02-10 20:00 UTC |
| London Honor Oak Park - UKA00656 | o3 | 39.8 | µg/m³ | 2026-02-10 20:00 UTC |
| London Honor Oak Park - UKA00656 | pm10 | 2.7 | µg/m³ | 2026-02-10 19:00 UTC |
| London Honor Oak Park - UKA00656 | pm25 | 1.981 | µg/m³ | 2026-02-10 19:00 UTC |
| Lewisham - Catford | no2 | 52.6 | µg/m³ | 2021-11-03 10:00 UTC |
| Lavender Hill | no2 | 22.0 | µg/m³ | 2026-02-02 12:00 UTC |
| Lavender Hill | pm10 | 10.8 | µg/m³ | 2026-02-02 12:00 UTC |
| Lavender Hill | pm25 | 4.0 | µg/m³ | 2026-02-02 12:00 UTC |
| Richmond Upon Thames - Castelnau | no2 | 40.2 | µg/m³ | 2026-02-10 19:00 UTC |
| Richmond Upon Thames - Castelnau | pm10 | 7.6 | µg/m³ | 2026-02-10 19:00 UTC |
| Westminster - Covent Garden | no2 | 46.3 | µg/m³ | 2026-02-10 19:00 UTC |
| Westminster - Covent Garden | pm25 | 9.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Wandsworth - Wandsworth Town Hall | no2 | 14.5 | µg/m³ | 2024-01-24 11:00 UTC |
| Wandsworth - Wandsworth Town Hall | o3 | 7.9 | µg/m³ | 2023-11-27 09:00 UTC |
| Westminster - Strand (Northbank BID) | no2 | 44.4 | µg/m³ | 2023-10-09 07:00 UTC |
| Wandsworth - Putney High Street Facade | no2 | 48.8 | µg/m³ | 2024-01-24 11:00 UTC |
| Croydon - Norbury Manor | pm25 | 33.0 | µg/m³ | 2025-03-06 08:00 UTC |
| Sutton - Beddington Lane north | no2 | 18.5 | µg/m³ | 2024-06-12 04:00 UTC |
| Sutton - Beddington Lane north | pm10 | 16.0 | µg/m³ | 2024-06-20 13:00 UTC |
| Sutton - Beddington Lane north | pm25 | 10.0 | µg/m³ | 2024-06-20 13:00 UTC |
| Westminster - Duke Street (Grosvenor) | no2 | 30.4 | µg/m³ | 2024-01-08 08:00 UTC |
| Sutton - Worcester Park | no2 | 26.7 | µg/m³ | 2024-06-20 06:00 UTC |
| Sutton - Worcester Park | pm10 | 11.3 | µg/m³ | 2024-06-20 06:00 UTC |
| Westminster - Oxford Street East | no2 | 54.6 | µg/m³ | 2023-06-06 13:00 UTC |
| Westminster - Oxford Street East | pm10 | 21.0 | µg/m³ | 2023-06-06 13:00 UTC |
| Wandsworth - Battersea | no2 | 43.0 | µg/m³ | 2026-02-02 08:00 UTC |
| Wandsworth - Battersea | pm10 | 11.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Wandsworth - Battersea | pm25 | 7.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Tower Hamlets - Blackwall | no2 | 35.3 | µg/m³ | 2026-02-10 17:00 UTC |
| Tower Hamlets - Blackwall | o3 | 31.7 | µg/m³ | 2026-02-10 17:00 UTC |
| Tower Hamlets - Blackwall | pm10 | 25.5 | µg/m³ | 2025-12-22 13:00 UTC |
| Tower Hamlets - Blackwall | pm25 | 19.2 | µg/m³ | 2025-12-22 13:00 UTC |
| Sutton - Wallington | no2 | 26.0 | µg/m³ | 2024-06-19 10:00 UTC |
| Sutton - Wallington | pm10 | 14.0 | µg/m³ | 2024-06-21 10:00 UTC |
| Westminster - Ebury Street (Grosvenor) | no2 | 10.7 | µg/m³ | 2023-11-15 04:00 UTC |
| Westminster - Oxford Street | no2 | 16.6 | µg/m³ | 2026-02-10 15:00 UTC |
| Westminster - Oxford Street | pm10 | 11.0 | µg/m³ | 2024-02-02 09:00 UTC |
| Westminster - Oxford Street | pm25 | 16.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Wandsworth - Tooting High Street | no2 | 52.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Wandsworth - Tooting High Street | pm10 | 31.0 | µg/m³ | 2026-02-06 18:00 UTC |
| Wandsworth - Tooting High Street | pm25 | 11.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Wandsworth - Putney | no2 | 21.0 | µg/m³ | 2026-02-10 14:00 UTC |
| Wandsworth - Putney | pm10 | 9.0 | µg/m³ | 2026-02-10 14:00 UTC |
| Wandsworth - Putney | pm25 | 5.0 | µg/m³ | 2026-02-10 14:00 UTC |
| Wandsworth - Putney High Street | no2 | 44.2 | µg/m³ | 2026-02-10 19:00 UTC |
| Wandsworth - Putney High Street | pm10 | 8.4 | µg/m³ | 2026-02-10 19:00 UTC |
| Wandsworth - Putney High Street | pm25 | 20.0 | µg/m³ | 2026-02-03 20:00 UTC |
| Newham - Britannia Gate | no2 | 15.1 | µg/m³ | 2026-02-10 04:00 UTC |
| Newham - Britannia Gate | pm25 | 15.0 | µg/m³ | 2026-02-10 04:00 UTC |
| Greenwich - Tunnel Avenue | no2 | 22.6 | µg/m³ | 2026-02-10 04:00 UTC |
| Newham - Hoola Tower | no2 | 35.7 | µg/m³ | 2026-02-06 09:00 UTC |
| Southwark - South Circular Road | no2 | 14.1 | µg/m³ | 2025-03-31 14:00 UTC |
| Southwark - South Circular Road | pm10 | 12.7 | µg/m³ | 2025-03-31 14:00 UTC |
| Southwark - South Circular Road | pm25 | 4.9 | µg/m³ | 2025-03-31 14:00 UTC |
| Waterloo Place (The Crown Estate) | no2 | 37.9 | µg/m³ | 2026-02-10 19:00 UTC |
| Waterloo Place (The Crown Estate) | o3 | 9.7 | µg/m³ | 2026-01-28 07:00 UTC |
| Waterloo Place (The Crown Estate) | pm10 | 7.2 | µg/m³ | 2026-02-10 19:00 UTC |
| Waterloo Place (The Crown Estate) | pm25 | 6.1 | µg/m³ | 2026-02-10 19:00 UTC |
| Lewisham - Laurence House Catford | no2 | 29.3 | µg/m³ | 2025-04-01 09:00 UTC |
| Hackney - Queensbridge Road | no2 | 11.5 | µg/m³ | 2022-06-28 09:00 UTC |
| Hackney - Queensbridge Road | pm10 | 28.0 | µg/m³ | 2022-06-28 11:00 UTC |
| Tower Hamlets - Jubilee Park | no2 | 11.9 | µg/m³ | 2025-11-27 22:00 UTC |
| Tower Hamlets - Jubilee Park | pm10 | 10.8 | µg/m³ | 2026-02-10 08:00 UTC |
| Tower Hamlets - Jubilee Park | pm25 | 7.3 | µg/m³ | 2026-02-10 08:00 UTC |
| Hackney - Homerton Library | no2 | 25.3 | µg/m³ | 2022-07-18 12:00 UTC |
| Hackney - Homerton Library | pm10 | 43.0 | µg/m³ | 2022-07-18 12:00 UTC |
| Hackney - Amhurst Road | no2 | 28.9 | µg/m³ | 2022-07-18 12:00 UTC |
| Hackney - Amhurst Road | pm10 | 29.0 | µg/m³ | 2022-07-18 12:00 UTC |
| Newham - East Ham Town Hall | no2 | 31.8 | µg/m³ | 2024-04-02 10:00 UTC |
| Newham - East Ham Town Hall | pm25 | 7.0 | µg/m³ | 2024-04-02 10:00 UTC |
| Regent Street (The Crown Estate) | no2 | 62.5 | µg/m³ | 2026-02-10 19:00 UTC |
| Regent Street (The Crown Estate) | pm10 | 14.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Regent Street (The Crown Estate) | pm25 | 12.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Islington | pm1 | 0.0 | µg/m³ | 2026-02-02 14:00 UTC |
| Islington | pm10 | 31.534226417541504 | µg/m³ | 2025-01-13 23:00 UTC |
| Islington | pm25 | 1.0 | µg/m³ | 2026-02-02 14:00 UTC |
| Islington | relativehumidity | 99.34666697184245 | % | 2026-02-02 14:00 UTC |
| Islington | temperature | 9.319999694824219 | c | 2026-02-02 14:00 UTC |
| Islington | um003 | 287.0 | particles/cm³ | 2026-02-02 14:00 UTC |
| UAL Creative Computing Institute, Greencoat Building | pm1 | 31.08128007253011 | µg/m³ | |
| UAL Creative Computing Institute, Greencoat Building | pm10 | 66.69515927632649 | µg/m³ | |
| UAL Creative Computing Institute, Greencoat Building | pm25 | 3.2458333373069763 | µg/m³ | |
| UAL Creative Computing Institute, Greencoat Building | relativehumidity | 82.91479174296062 | % | |
| UAL Creative Computing Institute, Greencoat Building | temperature | 21.010416666666668 | c | |
| UAL Creative Computing Institute, Greencoat Building | um003 | 5521.7262776692705 | particles/cm³ | |
| Honor Oak Park | pm25 | 12.097916603088379 | µg/m³ | 2025-07-01 22:00 UTC |
| Honor Oak Park | relativehumidity | 51.93333371480306 | % | 2025-07-01 22:00 UTC |
| Honor Oak Park | temperature | 23.824999968210857 | c | 2025-07-01 22:00 UTC |
| Honor Oak Park | pm25 | 1.4999999900658925 | µg/m³ | 2025-04-14 13:00 UTC |
| Honor Oak Park | relativehumidity | 34.67777792612711 | % | 2025-04-14 13:00 UTC |
| Honor Oak Park | temperature | 18.536110877990723 | c | 2025-04-14 13:00 UTC |
| SW London | pm1 | 18.141369183858234 | µg/m³ | 2024-08-01 18:00 UTC |
| SW London | pm10 | 26.928571224212646 | µg/m³ | 2024-08-01 18:00 UTC |
| SW London | pm25 | 26.0699405670166 | µg/m³ | 2024-08-01 18:00 UTC |
| SW London | relativehumidity | 39.30708376566569 | % | 2024-08-01 18:00 UTC |
| SW London | temperature | 27.473392645517986 | c | 2024-08-01 18:00 UTC |
| SW London | um003 | 3308.252970377604 | particles/cm³ | 2024-08-01 18:00 UTC |
| Maiden Lane, London | pm1 | 3.9767856995264688 | µg/m³ | |
| Maiden Lane, London | pm10 | 6.999107162157695 | µg/m³ | |
| Maiden Lane, London | pm25 | 6.80074405670166 | µg/m³ | |
| Maiden Lane, London | relativehumidity | 50.66800626118978 | % | |
| Maiden Lane, London | temperature | 18.758928616841633 | c | |
| Maiden Lane, London | um003 | 881.8020833333334 | particles/cm³ | |
| Maiden Lane, London | pm1 | 4.251339316368103 | µg/m³ | |
| Maiden Lane, London | pm10 | 7.057440519332886 | µg/m³ | |
| Maiden Lane, London | pm25 | 6.696577350298564 | µg/m³ | |
| Maiden Lane, London | relativehumidity | 52.33764902750651 | % | |
| Maiden Lane, London | temperature | 18.38452370961507 | c | |
| Maiden Lane, London | um003 | 949.0699462890625 | particles/cm³ | |
| Maiden Lane, London | pm1 | 3.8644345005353293 | µg/m³ | |
| Maiden Lane, London | pm10 | 6.355208357175191 | µg/m³ | |
| Maiden Lane, London | pm25 | 5.78898807366689 | µg/m³ | |
| Maiden Lane, London | relativehumidity | 49.071428298950195 | % | |
| Maiden Lane, London | temperature | 18.145386854807537 | c | |
| Maiden Lane, London | um003 | 831.6666717529297 | particles/cm³ | |
| Maiden Lane, London | pm1 | 2.9973333358764647 | µg/m³ | |
| Maiden Lane, London | pm10 | 4.795999908447266 | µg/m³ | |
| Maiden Lane, London | pm25 | 4.634666633605957 | µg/m³ | |
| Maiden Lane, London | relativehumidity | 44.09599914550781 | % | |
| Maiden Lane, London | temperature | 22.014666748046874 | c | |
| Maiden Lane, London | um003 | 723.0666748046875 | particles/cm³ | |
| Farthing downs | pm1 | 10.575333340962729 | µg/m³ | 2026-02-10 21:00 UTC |
| Farthing downs | pm10 | 36.73299996058146 | µg/m³ | 2025-01-13 23:00 UTC |
| Farthing downs | pm25 | 17.62983341217041 | µg/m³ | 2026-02-10 21:00 UTC |
| Farthing downs | relativehumidity | 70.5421667734782 | % | 2026-02-10 21:00 UTC |
| Farthing downs | temperature | 12.963833459218343 | c | 2026-02-10 21:00 UTC |
| Farthing downs | um003 | 1939.466666666667 | particles/cm³ | 2026-02-10 21:00 UTC |
| Twickenham | pm1 | 30.677666346232098 | µg/m³ | 2024-11-29 14:00 UTC |
| Twickenham | pm10 | 46.41150029500326 | µg/m³ | 2024-11-29 14:00 UTC |
| Twickenham | pm25 | 38.458333333333336 | µg/m³ | 2024-11-29 14:00 UTC |
| Twickenham | relativehumidity | 37.03916613260905 | % | 2025-01-10 12:00 UTC |
| Twickenham | temperature | 21.82449944814046 | c | 2025-01-10 12:00 UTC |
| Twickenham | um003 | 5494.62451171875 | particles/cm³ | 2025-01-10 12:00 UTC |
| Harlesden LP1 | pm25 | 3.41 | µg/m³ | 2024-09-10 15:05 UTC |
| Harlesden HP2 | pm25 | 4.17 | µg/m³ | 2024-09-10 15:04 UTC |
| Harlesden LP2 | pm25 | 2.77 | µg/m³ | 2024-09-10 15:05 UTC |
| Harlesden HP1 | pm25 | 4.1 | µg/m³ | 2024-09-10 13:05 UTC |
| Harlesden LP2 | pm25 | 17.79 | µg/m³ | 2026-02-10 20:31 UTC |
| Harlesden HP2 | pm25 | 17.01 | µg/m³ | 2026-02-10 20:28 UTC |
| Harlesden HP1 | pm25 | 13.6 | µg/m³ | 2026-02-10 20:16 UTC |
| Harlesden LP1 | pm25 | 16.81 | µg/m³ | 2026-02-10 20:44 UTC |
| Primrose Hill | pm1 | 0.0 | µg/m³ | 2024-11-12 15:00 UTC |
| Primrose Hill | pm10 | 0.28125000558793545 | µg/m³ | 2024-11-12 15:00 UTC |
| Primrose Hill | pm25 | 0.0 | µg/m³ | 2024-11-12 15:00 UTC |
| Primrose Hill | relativehumidity | 47.51249980926514 | % | 2024-11-12 15:00 UTC |
| Primrose Hill | temperature | 15.771875262260437 | c | 2024-11-12 15:00 UTC |
| Primrose Hill | um003 | 115.86249923706055 | particles/cm³ | 2024-11-12 15:00 UTC |
| Primrose Hill | pm1 | 14.183166662851969 | µg/m³ | 2025-01-13 23:00 UTC |
| Primrose Hill | pm10 | 30.527832984924316 | µg/m³ | 2025-01-13 23:00 UTC |
| Primrose Hill | pm25 | 28.12816635767619 | µg/m³ | 2025-01-13 23:00 UTC |
| Primrose Hill | relativehumidity | 52.12600008646647 | % | 2025-01-13 23:00 UTC |
| Primrose Hill | temperature | 10.566166718800863 | c | 2025-01-13 23:00 UTC |
| Primrose Hill | um003 | 883.1198425292969 | particles/cm³ | 2025-01-13 23:00 UTC |
| Perivale, Buckingham Ave | pm1 | 0.550000011920929 | µg/m³ | |
| Perivale, Buckingham Ave | pm10 | 2.100000023841858 | µg/m³ | |
| Perivale, Buckingham Ave | pm25 | 1.675000011920929 | µg/m³ | |
| Perivale, Buckingham Ave | relativehumidity | 40.60000038146973 | % | |
| Perivale, Buckingham Ave | temperature | 22.3125 | c | |
| Perivale, Buckingham Ave | um003 | 309.375 | particles/cm³ | |
| UAL Creative Computing Institute, Peckham Road Building | pm1 | 0.8120714170592171 | µg/m³ | |
| UAL Creative Computing Institute, Peckham Road Building | pm10 | 1.9128571237836565 | µg/m³ | |
| UAL Creative Computing Institute, Peckham Road Building | pm25 | 1.7357857397624425 | µg/m³ | |
| UAL Creative Computing Institute, Peckham Road Building | relativehumidity | 65.00642885480609 | % | |
| UAL Creative Computing Institute, Peckham Road Building | temperature | 11.2674286706107 | c | |
| UAL Creative Computing Institute, Peckham Road Building | um003 | 259.9142848423549 | particles/cm³ | |
| Mitcham Road | pm25 | 11.79 | µg/m³ | 2026-02-10 19:48 UTC |
| Bellevue Road / Trinity Road | pm25 | 13.73 | µg/m³ | 2026-02-10 20:45 UTC |
| Twickenham Primary Academy | pm25 | 5.49 | µg/m³ | 2025-04-20 13:13 UTC |
| Wandsworth Bridge | pm25 | 1.21 | µg/m³ | 2026-02-10 14:12 UTC |
| Battersea Park Road | pm25 | 20.98 | µg/m³ | 2026-02-10 20:32 UTC |
| Thomson House School | pm25 | 18.07 | µg/m³ | 2026-02-10 20:47 UTC |
| Putney High Street | pm25 | 20.11 | µg/m³ | 2026-02-10 20:31 UTC |
| Nine Elms Lane | pm25 | 17.5 | µg/m³ | 2026-02-10 20:11 UTC |
| Richmond Bus Garage | pm25 | 15.84 | µg/m³ | 2026-02-10 20:44 UTC |
| High St, Barnes | pm25 | 1.54 | µg/m³ | |
| Church Rd | pm25 | 13.22 | µg/m³ | 2026-02-10 20:35 UTC |
| St Mary's RC Primary | pm25 | 21.02 | µg/m³ | 2026-02-10 20:33 UTC |
| High St, Witton | pm25 | 2.31 | µg/m³ | |
| Park Rd, Hampton Hill | pm25 | 1.58 | µg/m³ | |
| Lwr Rich Rd, Chertsy Corner, nr j/w houses | pm25 | 2.18 | µg/m³ | |
| Holy Trinity CE Primary School | pm25 | 20.48 | µg/m³ | 2026-02-10 20:32 UTC |
| King St, Twickenham | pm25 | 2.41 | µg/m³ | |
| Kew Rd, before j/w South Circle / Kew Green | pm25 | 2.37 | µg/m³ | |
| Nelson Primary School | pm25 | 16.21 | µg/m³ | 2026-02-10 20:36 UTC |
| St Margaret's Road, Twickenham | pm25 | 1.69 | µg/m³ | |
| Chase Bridge Primary School | pm25 | 19.67 | µg/m³ | 2026-02-10 20:50 UTC |
| Roehampton Lane | pm25 | 16.75 | µg/m³ | 2026-02-10 20:49 UTC |
| Deer Park School | pm25 | 12.74 | µg/m³ | 2026-02-10 20:29 UTC |
| Kew Rd, Richmond, opposite station | pm25 | 2.02 | µg/m³ | |
| The Vineyard Schl, Friars Stile Rd | pm25 | 2.41 | µg/m³ | |
| Wandsworth Town | pm25 | 14.31 | µg/m³ | 2026-02-10 19:20 UTC |
| Archdeacon Cambridge's CofE Primary School | pm25 | 9.09 | µg/m³ | 2026-02-10 19:27 UTC |
| St Richards CE Primary School | pm25 | 15.17 | µg/m³ | 2026-02-10 20:28 UTC |
| Broad Street, Teddington | pm25 | 2.27 | µg/m³ | |
| West Hill | pm25 | 14.42 | µg/m³ | 2026-02-10 20:17 UTC |
| NASA GSFC Rutgers Calib. N16 | pm25 | 8.08 | µg/m³ | 2026-02-10 20:33 UTC |
| Richmond Upon Thames - Richmond | no2 | 27.5 | µg/m³ | 2026-02-10 10:00 UTC |
| Richmond Upon Thames - Richmond | pm10 | 15.0 | µg/m³ | 2026-02-10 09:00 UTC |
| Richmond Upon Thames - Richmond | pm25 | 14.0 | µg/m³ | 2026-02-10 10:00 UTC |
| Richmond Upon Thames - Richmond | no2 | 15.5 | µg/m³ | 2025-03-30 11:00 UTC |
| Richmond Upon Thames - Richmond | pm10 | 117.0 | µg/m³ | 2025-03-30 10:00 UTC |
| Richmond Upon Thames - Richmond | pm25 | 13.0 | µg/m³ | 2025-03-30 11:00 UTC |
| Sutton Surrey | pm1 | 5.735458350181578 | µg/m³ | 2026-02-10 20:00 UTC |
| Sutton Surrey | pm25 | 9.201124993960065 | µg/m³ | 2026-02-10 20:00 UTC |
| Sutton Surrey | relativehumidity | 74.46933294932049 | % | 2026-02-10 20:00 UTC |
| Sutton Surrey | temperature | 12.286250114440918 | c | 2026-02-10 20:00 UTC |
| Sutton Surrey | um003 | 1216.5875 | particles/cm³ | 2026-02-10 20:00 UTC |
| Horseferry Road | pm1 | 0.3428750022004048 | µg/m³ | 2025-10-20 05:00 UTC |
| Horseferry Road | pm25 | 1.3550416631003221 | µg/m³ | 2025-10-20 05:00 UTC |
| Horseferry Road | relativehumidity | 69.77041641871133 | % | 2025-10-20 05:00 UTC |
| Horseferry Road | temperature | 15.870999828974407 | c | 2025-10-20 05:00 UTC |
| Horseferry Road | um003 | 237.72500000000002 | particles/cm³ | 2025-10-20 05:00 UTC |
| Merton - Plough Lane Wimbledon | pm10 | 18.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Merton - Plough Lane Wimbledon | pm25 | 7.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Merton - Mitcham | no2 | 38.5 | µg/m³ | 2026-02-10 19:00 UTC |
| Merton - Mitcham | pm25 | 8.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Surbiton | pm1 | 2.01400000055631 | µg/m³ | 2026-02-10 21:00 UTC |
| Surbiton | pm25 | 6.60866667429606 | µg/m³ | 2026-02-10 21:00 UTC |
| Surbiton | relativehumidity | 66.49016647338867 | % | 2026-02-10 21:00 UTC |
| Surbiton | temperature | 13.780499919255574 | c | 2026-02-10 21:00 UTC |
| Surbiton | um003 | 342.61133422851566 | particles/cm³ | 2026-02-10 21:00 UTC |
| Former Greegs Site, Colne Road, Twickenham | pm25 | 10.62 | µg/m³ | |
| Tower Hamlets - King Edward Memorial Park | no2 | 46.6 | µg/m³ | 2026-02-10 19:00 UTC |
| Tower Hamlets - King Edward Memorial Park | pm25 | 9.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Tower Hamlets - Victoria Park | no2 | 6.2 | µg/m³ | 2025-05-06 08:00 UTC |
| Tower Hamlets - Victoria Park | pm10 | 20.0 | µg/m³ | 2025-05-07 15:00 UTC |
| Tower Hamlets - Victoria Park | pm25 | 11.0 | µg/m³ | 2025-05-07 15:00 UTC |
| Tower Hamlets - Victoria Park | no2 | 30.9 | µg/m³ | 2026-02-02 08:00 UTC |
| Tower Hamlets - Victoria Park | pm10 | 15.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Tower Hamlets - Victoria Park | pm25 | 6.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Tower Hamlets - Millwall Park | no2 | 35.3 | µg/m³ | 2026-02-10 19:00 UTC |
| Tower Hamlets - Millwall Park | o3 | 19.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Tower Hamlets - Millwall Park | pm10 | 9.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Terrace | pm1 | 3.405500000715256 | µg/m³ | 2026-02-10 21:00 UTC |
| Terrace | pm25 | 7.88116668065389 | µg/m³ | 2026-02-10 21:00 UTC |
| Terrace | relativehumidity | 66.35466677347819 | % | 2026-02-10 21:00 UTC |
| Terrace | temperature | 13.583666721979776 | c | 2026-02-10 21:00 UTC |
| Terrace | um003 | 421.03066660563155 | particles/cm³ | 2026-02-10 21:00 UTC |
| Surbiton | pm1 | 9.825000000000001 | µg/m³ | 2026-02-10 21:00 UTC |
| Surbiton | pm25 | 17.155499998728438 | µg/m³ | 2026-02-10 21:00 UTC |
| Surbiton | relativehumidity | 71.06833305358886 | % | 2026-02-10 21:00 UTC |
| Surbiton | temperature | 12.800833495457967 | c | 2026-02-10 21:00 UTC |
| Surbiton | um003 | 1715.2250000000001 | particles/cm³ | 2026-02-10 21:00 UTC |
| Queens Road | pm1 | 0.6335000005861122 | µg/m³ | 2026-02-10 21:00 UTC |
| Queens Road | pm25 | 2.8250000000000006 | µg/m³ | 2026-02-10 21:00 UTC |
| Queens Road | relativehumidity | 68.9781665802002 | % | 2026-02-10 21:00 UTC |
| Queens Road | temperature | 13.692500019073487 | c | 2026-02-10 21:00 UTC |
| Queens Road | um003 | 252.02549921671547 | particles/cm³ | 2026-02-10 21:00 UTC |
| Richmond | pm1 | 4.974833329518637 | µg/m³ | 2026-02-10 21:00 UTC |
| Richmond | pm25 | 9.902833334604898 | µg/m³ | 2026-02-10 21:00 UTC |
| Richmond | relativehumidity | 64.65949999491373 | % | 2026-02-10 21:00 UTC |
| Richmond | temperature | 14.68699992497762 | c | 2026-02-10 21:00 UTC |
| Richmond | um003 | 470.5253341674804 | particles/cm³ | 2026-02-10 21:00 UTC |
| Kensington and Chelsea - Station Walk | no2 | 32.9 | µg/m³ | 2026-02-10 19:00 UTC |
| Kensington and Chelsea - Station Walk | pm10 | 9.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Kensington and Chelsea - Station Walk | pm25 | 9.0 | µg/m³ | 2026-02-10 19:00 UTC |
| Kensington and Chelsea - Station Walk | no2 | 5.9 | µg/m³ | 2025-09-15 09:00 UTC |
| Kensington and Chelsea - Station Walk | pm10 | 24.0 | µg/m³ | 2025-09-15 09:00 UTC |
| Kensington and Chelsea - Station Walk | pm25 | 16.0 | µg/m³ | 2025-09-15 09:00 UTC |
| Haringey | pm1 | 19.913833332061767 | µg/m³ | 2026-02-10 21:00 UTC |
| Haringey | pm25 | 35.830499998728435 | µg/m³ | 2026-02-10 21:00 UTC |
| Haringey | relativehumidity | 64.13850015004475 | % | 2026-02-10 21:00 UTC |
| Haringey | temperature | 14.160000038146974 | c | 2026-02-10 21:00 UTC |
| Haringey | um003 | 1062.4695058186846 | particles/cm³ | 2026-02-10 21:00 UTC |
| London | pm1 | 5.6195000012715655 | µg/m³ | 2026-02-10 21:00 UTC |
| London | pm25 | 12.484166685740156 | µg/m³ | 2026-02-10 21:00 UTC |
| London | relativehumidity | 62.64895834922791 | % | 2026-02-10 21:00 UTC |
| London | temperature | 14.946124843756358 | c | 2026-02-10 21:00 UTC |
| London | um003 | 534.9884586334229 | particles/cm³ | 2026-02-10 21:00 UTC |
| Kingsland Basin | pm1 | 20.283499972025552 | µg/m³ | 2026-02-10 21:00 UTC |
| Kingsland Basin | pm25 | 31.321666653951013 | µg/m³ | 2026-02-10 21:00 UTC |
| Kingsland Basin | relativehumidity | 62.24916655222574 | % | 2026-02-10 21:00 UTC |
| Kingsland Basin | temperature | 15.09266676902771 | c | 2026-02-10 21:00 UTC |
| Kingsland Basin | um003 | 1166.0946695963542 | particles/cm³ | 2026-02-10 21:00 UTC |