Will be interesting to see what this looks like in the cooler seasons. Temuco and Santiago especially are in bowls, and with lots of diesel vehicles and woodburning stoves, these cities are very smoggy in the winter.

Cool! Is there historical data available? It'd be cool to have a slider to go back in time and maybe loop over the data over a specific range to show how it evolves.

Also, what bounds this to Chile? It seems that using location coordinates and standardising the fields on each sensor type may help unify data from any weather station.

Chile has buenos aires

Check out https://openaq.org/

Chiuchiu shows up as red but Google says it's fine?