本日の北京大気汚染状況:モデレート(即死は回避できる状況)w @BeijingAir 12-31-2013 15:00; PM2.5; 19.0; 66; Moderate (at 24-hour exposure at this level)
12-31-2013 15:00; PM2.5; 19.0; 66; Moderate (at 24-hour exposure at this level)
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