May 1
Pittsburgh has passed Los Angeles as the most polluted U.S. city in short-term particle pollution, according to the annual American Lung Association State of the Air report.
The pollution is a cocktail of ash, soot, diesel exhaust, chemicals, metals and aerosols spiking for a few hours to several weeks.
It is the first time in the nine years the association has prepared its report that a city outside of California has been atop the list. Pittsburgh also ranked second in the category of cities with the most year-round particle pollution.
Los Angeles retained its spot at the top of the year-round particle pollution category. It also was number one in the nation in ozone pollution. The report and more information is available at the American Lung Associationīs Web site.
E-mail Waste News reporter Joe Truini at jtruini@crain.com
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