Worthless data

This app consistently underrepresents Beijings 2.5. Instead of being a credible source, the numbers that this posts seems more like a thing of CCP fiction than true data.
Ive crosschecked over the past and it consistently reports a 2.5 level 70% lower than it should be.

Perhaps the developer was taken to tea and the numbers represent this...
App is a waste of time.

In BJ ; app is bad about Air Matters