Thursday brings another clearing of Beijing's pollution, with PM2.5 levels dropping in the early morning hours. We could be at Good or Moderate air quality before sunrise, or it could take until nearly noon to clear. Once the air clears, we should have a few hours of good air, but around late afternoon or early evening, we may see the PM2.5 levels start to creep back up again.
UPDATE – Our prediction with overlay of actual readings:
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