We can't blame this on the fireworks now RT @BeijingAir: 03-07-2015 02:00; PM2.5; 280.0; 330; Hazardous (at 24-hour exposure at this level)
03-07-2015 02:00; PM2.5; 280.0; 330; Hazardous (at 24-hour exposure at this level)
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