Six California cities appear on the American Lung Association’s (ALA) list of the nation’s 10 most ozone-polluted cities, including the four most polluted. ALA finds that Los Angeles leads the list of ozone-heavy cities followed by Bakersfield, Visalia and Fresno, with Sacramento at No. 6 and El Centro at No. 10. California cities also appear prominently on the lists of those with high levels of particle pollution. Fresno, Bakersfield and Los Angeles hold the second, third and fourth places on the list of cities with the worst short-term particle pollution, with Pittsburgh topping the list. Sacramento is No. 7. Bakersfield is said to have the nation’s worst year-round particle pollution, with Los Angeles at No. 3, Visalia at No. 4, Hanford at No. 6, and Fresno No. 7. To read the full report, visit: http://www.lungusa.org/assets/documents/publications/state-of-the-air/state-of-the-air-report-2009.pdf.