I agree, but I was just pointing out that I think PurpleAir is a better source for this because aqi.today is (unintentionally) misleading without the context of

I agree, but I was just pointing out that I think PurpleAir is a better source for this because aqi.today is (unintentionally) misleading without the context offered by PurpleAir. I know that the air pollution is very bad around my area as there was a comprehensive one-off detailed study done of every area of the city in 2017 which showed it to be, and the causes of it have not since changed. The lack of realtime sensors in my area though would mislead aqi.today users to think that everything's rosy here. At least with PurpleAir one get an immediate idea of a lack of data in one's area. This isn't intended as an outright criticism: I guess aqi.today could be made more informative by adding either some quick context, or a disclaimer, into the UI.