2 ms·
The Shanghai subways are new and shiny, has advanced adtech, ... And most comforting of all, you can see the air you're breathing!
by masonic 9y ago
The Shanghai subways are new and shiny, has advanced adtech,
... And most comforting of all, you can see the air you're breathing!
- qiqing 9y agoActually, during most of my trip, the PM2.5 daily forecasts were in the good (green) category, and it dipped into fair (yellow) for only one day. For a more intuitive comparison, the 'fair' day was clearer than Black Rock Desert on a non-windy day before Burning Man gets set up.