(Bakersfield, CA) — The American Lung Association is listing a California city as having the worst air quality in the U.S. In its 2022 report, Bakersfield topped the list.A number of California cities are listed in the top five for worst air quality, including Fresno, San Jose and Los Angeles. An official with the Valley Air District told KBAK-TV that one of the reasons for the dirty air is the “bowl effect.” That’s due to the city being situated inside mountain ranges. Bakersfield doesn’t place well by ozone or short term particle pollution rankings either. The report puts the area second in each category.