Reference monitoring station air quality data
| Name | Source | Data Type | Notes |
|---|---|---|---|
| AURN | UK Air (Defra) | Reference monitoring station | One hour averaged data. Earliest data for some locations is from January 2018. |
| London Air Quality Network | Reference monitoring station | One hour averaged data. Earliest data for some locations is from January 2018.
Managed by Imperial College's Measurement Team. |
Please note:
- Reference monitoring stations are regularly calibrated, and the data from them is ratified on an annual basis, using a full calendar year's worth of data, usually in April of the following year. The above data is ratified by Imperial College London, with the exception of Horseferry Road (AURN), which is ratified by Defra-appointed consultants (Ricardo).
- We aim to refresh our export files every evening, but final 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 constantly 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.
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Please refer to our guide on data sources for further information.
Current Year
WCC Air Quality Reference Monitoring Station Export 2024
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