A new report says Bismarck is one of the cleanest cities in the nation and is the Top Ranking Cleanest for Ozone Pollution.

The report released Wednesday, by the American Lung Association is based on 2006-2008 figures. It says progress has been made in reducing particle pollution such as soot and dust, thanks to cleaner diesel engines and controls on coal-fired power plants.

The cleanest cities in the nation were Bismarck, Fargo and Wahpeton, N.D., and Lincoln, Nebraska.

For more information visit: Cleanest Cities