The maroon areas represent a "hazardous" air quality index (AQI). According to the 2 p.m. readings from AirNow on Nov. 15, Sacramento was at an AQI of 313. (Photo used by permission of AirNow.gov)Classes canceled until smoke from Camp Fire curbed StaffNovember 15, 201845 views0 Comments45 views0 min read Due to the “hazardous” air quality (at 313 as of 2:39 p.m. on Nov. 15), all classes have been canceled for the remainder of the week. Classes will resume on Monday, Nov. 26, following the week-long Thanksgiving break. Check back later for more information.