今冬首次爆表要来了么?好期待~ RT @BeijingAir: 11-30-2015 11:00; PM2.5; 480.0; 487; Hazardous (at 24-hour exposure at this level)
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@BeijingAir you were quoted in an article by@mashablehttp://mashable.com/2015/11/30/beijing-air-pollution-alert/ …Thanks. Twitter will use this to make your timeline better. UndoUndo
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