Division of Air Resource Management (General)

Regional Haze Status figure

Current monitored visibility, uniform rate of progress, and EPA's 2028 visibility modeling projections for each Florida Class I Area. Current visibility conditions are below the uniform rate of progress. 2028 visibility conditions are projected to be below the uniform rate of progress.

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Clean Air Act Designated Class I Areas

Map of Florida's Clean Air Act Designated Class I Areas

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Components of Haze on the Most Impaired Days figure

Components of Haze on the Most Impaired Days at Florida Class I Areas (2014-2018 Average). Ammonium sulfate is the largest component of haze

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EPA’s Regional Haze Program

In 1999, the U.S. Environmental Protection Agency (EPA) announced a major effort to improve air quality in national parks and wilderness areas. The Regional Haze Rule calls for state and federal agencies to work together to improve visibility in 156 national parks and wilderness areas such as Everglades, Grand Canyon, Yosemite, the Great Smoky Mountains and Shenandoah.

See below to learn about the work DEP is doing for the current implementation period and other background information.