Add pollution levels support
For those living in polluted cities it would be very useful.
aqicn offers apis which you could use: https://aqicn.org/api/
According to them:
All the APIs are provided for free. A valid key must be used for accessing the API. All the API are subjected to quota.
The default quota is max 1000 (one thousand) requests per minute (~16RPS) and with burst up to 60 requests. Data usage
The data can not be sold or included in sold packages. The data can not be used in paid applications or services. The data can not be redistributed as cached or archived data.
I think this fits this project (I am not a dev so please correct me if I am mistaken).