• Pittsburgh makes American Lung Assoc. list of most polluted cities


    PITTSBURGH - Pittsburgh’s air quality is improving, but it still made the list of the most polluted cities in the United States.

    The American Lung Association released a new report, and Pittsburgh is one of two areas outside of California to rank in the top 25 most polluted cities.

    Experts said despite that, air quality has improved since last year.

    Next Up: