Anyone else experiencing this: recently my iPhone's weather app stopped reporting air quality index for Kunming. Same when I checked Shanghai, Beijing, HK, and neighboring Chengdu. Not alarming per se, just odd...

By coincidence, I found an IOS app called ‘Air Matters’ this morning. It’s free, comprehensive and has a nice UI.

I had not noticed that the iPhone app stopped reporting, but while it still did it never seemed to agree with the webpage aqicn.org/map/kunming/, which has also undergone a recent strange transformation in that it is now opens zoomed out to a much wider area the Kunming.

then zoom in

'air matters' - good find.