To illustrate the pollution in China, you choose a day with Beijing less polluted than Shanghai and HK... Really? How many time that happens in a year? And, if 35 is a safe value for PM2.5 in China, the WHO recommends 10... And yes, no better day than a windy day ...
-
-
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.