After Sunday's unexpectedly high PM2.5 levels, Monday should be a better day for air quality. We should start the day off at Unhealthy or Very Unhealthy before seeing PM2.5 levels begin to drop in the morning hours. We can expect to fall at least into Unhealthy for Sensitive Groups and possibly into Moderate by the afternoon. But changing weather conditions should see those levels move right back up as we go through the evening commute.
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