Air quality readings began the day in the unhealthy range in several areas on Saturday. These readings improved throughout the day, eventually reaching the moderate range. The improvement occurred after initial unhealthy readings were recorded in three regions.

Further details about the air quality are available from the source. The information provided indicates that the air quality started the day at unhealthy levels but showed improvement as the day progressed.

The air quality eventually improved to the moderate range, marking a change from the initial unhealthy readings recorded earlier in the day.