“@BeijingAir: 01-04-2015 21:00; PM2.5; 360.0; 407; Hazardous”
That degraded quickly 
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@sanverde@BeijingAir yuk. SH is pretty bad today. I'm back in BJ tomoz so something to look forward too. -
@murdochsj Bring masks~ - 1 more reply
New conversation -
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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