Denver’s air is deteriorating, with increased ozone and soot, pushing the city from 26th to 13th among most-polluted cities in the nation, the American Lung Association said Wednesday in releasing a survey.
The troubling trend in Denver and Fort Collins, which rose to 16th among most-polluted U.S. cities, exemplified a slide in air quality across Western states, according to ALA officials, who based their analysis on federal and state government air data.
Rising temperatures and drought in the West are creating ideal conditions for episodes of high pollution from tiny particulates, the officials said. They’re urging installation of more air-testing stations to track the trend and protect public health.