In Donora, Pennsylvania, the Donora Smog Museum preserves the history and archival record of the 1948 air inversion in which smog containing fluorine settled over the mill town and killed 20 people. In a community shaped by U.S. Steel's Donora Zinc Works and the American Steel & Wire plant, the disaster became a defining part of local industrial history. Opened in 2008 in an old storefront on McKean Avenue, the museum emphasizes documentation and memory, including a digital primary-source collection developed with California University of Pennsylvania. Donora's deadly 1948 smog is widely linked to the rise of the U.S. clean-air movement and the later Clean Air Act.

Fellsburg, Pennsylvania · USA