Via @BeijingAir: 12-26-2014 20:00; PM2.5; 244.0; 294; Very Unhealthy; let the people track their local pollution @MyTzoa & share data.
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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@BeijingAir: 12-26-2014 20:00; PM2.5; 244.0; 294; Very Unhealthy (at 24-hour exposure at this level)”Thanks. Twitter will use this to make your timeline better. UndoUndo
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