“@BeijingAir: 02-20-2014 17:00; PM2.5; 347.0; 397; Hazardous (at 24-hour exposure at this level)” Glad the fireworks haven't made this worse
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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@BeijingAir so much for the baseball weatherThanks. Twitter will use this to make your timeline better. UndoUndo
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