Los Angeles has most polluted air in US despite 6% improvement in 2021, report says

ByJosh Haskell

Wednesday, March 23, 2022

LA has most polluted air in US despite 6% improvement in 2021: Report

Los Angeles has the most polluted air out of more than 2,400 U.S. cities analyzed in a report released by an air-quality monitoring firm, despite the city showing 6% pollution decrease in 2021.

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