What is historical data license? Can it be downloaded somehow?

[DeeKey]

It is not clear what license for collected data. If it is free and open source then where can it be downloaded? If not, please mark it as well.

[mrgames13]

We're currently working on a REST API to access the data on our servers. We will wait with adding a license until the API is released. Please be patient.

[DeeKey]

Seems that you have added API: https://github.com/chillibits/particulate-matter-api
Yet the access to API is not public.

What about the license for historic data? Is it possible to download historical data without API somehow?