Los Angeles is still the nation’s smoggiest city

/sigh
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Los Angeles is still the nation’s smoggiest city: "The metropolitan area averages more than 140 days a year with dangerous ozone.




Metropolitan Los Angeles, extending to Riverside and Long Beach, remains the smoggiest city in the United States, with an average of more than 140 days a year of dangerous ozone levels, the American Lung Assn. reported Wednesday in its annual assessment ."