Monday's air quality will again be better than the average for Beijing. We are expecting Good or Moderate air quality at least for the morning hours on Monday, but we will likely see increasing PM2.5 levels in the afternoon. The weather forecasts we have present a wide range of possibilities for the afternoon, including air quality at the upper end of the Unhealthy range. We think it is most likely that we will see increased pollution in the afternoon and evening, almost certainly moving us into Unhealthy for Sensitive Groups and likely moving us into Unhealthy for at least a short period of time. Extended forecasts have the air clearing somewhat on Monday night and into Tuesday morning, but we'll wait and see if those forecasts hold.
UPDATE – Our prediction with overlay of actual readings:
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