Denver’s grade for short-term, particle pollution dropped from a “D” to an “F,” but the city’s ozone pollution improved from a “C” to a “B,” according to a report released Thursday by the American Lung Association.
The results are from the association’s annual “State of the Air” report, which ranks cities and counties throughout the United States on air pollution levels.
“Denver-area residents are not yet breathing air that’s clean enough to be safe,” said Natalia Swalnick, air quality/Clean Cities manager for the American Lung Association of Colorado.
Swalnick called particle pollution “the most dangerous of the widespread outdoor air pollutants.” Particle polution is typically composed of ash, soot, diesel exhaust, chemicals, metals and aerosols. (more…)


