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Published December 15, 2009, 12:00 AM

Haze


The board’s 7-1 vote is aimed at cleaning the elements of air pollution that cause haze, especially over Voyageurs National Park, Isle Royale National Park and the Boundary Waters Canoe Area Wilderness. (Courtesy of U.S. Forest Service)
Read the article: PCA passes haze rules for northern parks
Read the article: Minnesota PCA passes haze rules for northern parks