The following data sets are available for download as comma separated value (CSV) files:
- Sensor air quality data from multiple sources
- Continuous Monitoring Station air quality data
- Nitrogen Dioxide (NO2) diffusion tube data from multiple sources
- Diffusion tube bias-adjusted data
Please note
- Before downloading, please read our data guide to understand data sources, frequency, and quality. Not all data sets are directly comparable.
- Due to licensing agreements, some data can be viewed but not downloaded. We regularly update our datasets; contact us if you need specific data that is not listed.
- We regularly review data availability, uploading historical data sets and new data sets where identified. If you need a data set that you think is available but is not currently on our website, or have any feedback on our online tools, please contact us by emailing: [email protected].