“@BeijingAir: 04-09-2013 00:00; PM2.5; 9.0; 29; Good (at 24-hour exposure at this level)” it's crisp in Beijing today...ahhh, drink it in!
04-09-2013 00:00; PM2.5; 9.0; 29; Good (at 24-hour exposure at this level)
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