This PR changes what is shown by the Air quality sensors layer to point at the aqi_24hr property that has been computed from the Purple Air 2.5PM concentration from their sensors. The reason why the data didn't match up with what is shown on the Purple Air Map website, is that I hadn't converted the output to AQI and it was still being shown as PM 2.5 concentration for the 24 hour average.
This PR changes what is shown by the Air quality sensors layer to point at the aqi_24hr property that has been computed from the Purple Air 2.5PM concentration from their sensors. The reason why the data didn't match up with what is shown on the Purple Air Map website, is that I hadn't converted the output to AQI and it was still being shown as PM 2.5 concentration for the 24 hour average.