Sensor air quality data
| Name | Source | Data Type | Notes |
|---|---|---|---|
| Name Breathe London |
Source | Data Type Sensor |
Notes One hour averaged data. Earliest data for some locations is from February 2021.
Managed by Imperial College's Measurement Team. |
| Name Earthsense |
Source | Data Type Sensor |
Notes 15 minute averaged data from selected school sites. Earliest data for some locations is from December 2021. |
Please note:
- Sensor data are sourced from a range of equipment types according to a range of operational standards. Data can therefore be processed using different proprietary methods each day and is not directly comparable between different sensor types.
- We aim to refresh our export files every night, but validation of some third-party data sources can take up to 48 hours, so please be aware that some of the most recent data in these files may change.
- Data is reviewed retrospectively by the data providers, and some updates may be made at a later date. These may not always be reflected in our download files, and you should visit the data source’s website directly for the most up-to-date data.
- Please refer to our guide on data sources for further information.
Please note. Breath London sensors funded by the Mayor of London are transitioning to a new contract and new data for those sites will remain unavailable on our reports until that process completes.
Current year
wcc_air_quality_sensor_full_export_2025.zip
ZIP, 5.18 MB
2024
wcc_air_quality_sensor_full_export_2024 full year.zip
ZIP, 18.06 MB
2023
wcc_air_quality_sensor_full_export_2023_3.zip
ZIP, 13.16 MB
2022
wcc_air_quality_sensor_full_export_2022_2.zip
ZIP, 16.94 MB
2021
wcc_air_quality_sensor_full_export_2021_1.zip
ZIP, 1.13 MB
