Saturday's air quality looks to be worse than average for Beijing. We should see Unhealthy or Very Unhealthy PM2.5 levels after midnight, and those levels should increase until about mid-morning. From there, we should see some decrease in pollution levels, but it is unlikely that they will drop below Unhealthy. In the evening, we should again see increasing PM2.5 levels, but those increases should be less drastic than those seen earlier in the day.
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