This particle concentration is hard to believe "@BeijingAir: 02-25-2014 12:00 to 02-26-2014 11:59; PM2.5 24hr avg; 496.9; 498; Hazardous”
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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“
@BeijingAir: 02-25-2014 12:00 to 02-26-2014 11:59; PM2.5 24hr avg; 496.9; 498; Hazardous”. Well that's alright thenThanks. Twitter will use this to make your timeline better. UndoUndo
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