Note that 200 is four times worse than 100, and Beijing is only China’s fourth most polluted city.
Expats are obsessed with this. We “splurged” on a Swedish air purifier for the kids’ room. The international schools use air purifiers and cancel recess and sports over 250. Our special Japanese “Totobobo” masks required a daytrip to the 1 store that carries them.
China Daily today reports today Chinese lung cancer rates up 50% in the past decade, nationwide. (Pancreatic cancer, newsy after Steve Jobs’ death, was reported, in Shanghai, to be up 500% in 2010, versus 1980.)
Considering the lavish love given to [only] children here, the carefree attitude about kids’ seatbelts & helmets surprises. Brilliant academics don’t have air purifiers at home.
And I have never seen an air mask on a child.