The full NO2 dataset can be downloaded here.
The full PM2.5 dataset can be downloaded here.
The data files will be updated weekly. Because data is subject to change with additional QA/QC, it is recommended that users download a new data file each time they wish to work with the data, rather than using a previously downloaded file. Data is GMT hour ending. Missing data is indicated with the value -999. Breathe London Pilot data is licensed under the Open Government Licence.