Despite improvements, California cities still top the list of those with the country’s worst air pollution. The American Lung Association’s annual “State of the Air” report lists eight California cities in the top 10 affected by year-round pollution, and six of the top 10 for short-term particle pollution.
California Cities Top Air Pollution List, Despite Improvements
By editor • Apr 20, 2017
Originally published on April 20, 2017 1:00 pm
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