Double digits. Get outside Beijingers... RT @BeijingAir 03-18-2013 10:00; PM2.5; 10.0; 32; Good (at 24-hour exposure at this level)
03-18-2013 10:00; PM2.5; 10.0; 32; Good (at 24-hour exposure at this level)
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@gallagher_photo@beijingair it's fantastic out. So crisp!!! -
@shannonfagan What a difference a day makes... - 1 more reply
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