• Granite mountains on islands along coast

    Acadia

    National Park Maine

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  • Park Loop Road opening

    May 17, 2013: The entire Park Loop Road and all other paved roads in the park open today. All dirt roads in the park, including the Seal Cove Road, will open on June 3.

  • Trail closures

    April 22, 2013: The Precipice, Orange and Black, Valley Cove, and Jordan Cliffs Trails are closed until further notice because of nesting peregrine falcons. All other trails in the park are open, whether accessible from the park or from state roads.

  • Hulls Cove Visitor Center

    May 17, 2013: The visitor center will open on May 19 and will be open 9-5 every day. All park passes are available there. There is an accessible entrance at the back of the building for those who have trouble climbing stairs.

Air Resources

The air resources management program at Acadia is a comprehensive program designed to assess air pollution impacts and protect air quality-related resources. The park is downwind from large urban and industrial areas to the south and west and periodically experiences high concentrations of air pollutants, primarily as a result of long-range transport. As a Class I area under the Clean Air Act, Acadia is afforded the highest level of protection under the act.

The air program at Acadia began in the early 1980s and includes monitoring, research, and regulatory interaction with state and federal agencies. The core program includes long-term monitoring for ozone, sulfur dioxide, nitrogen oxides, volatile organic compounds (VOCs), fine particulates, visibility, mercury deposition and acid precipitation. Research has been conducted to determine the biological effects of selected air pollutants on park resources.

The air resources program is a collaborative effort involving the National Park Services' Air Resources Division and Northeast Regional Office, the Maine Department of Environmental Protection, and Acadia natural resource staff.

 

Did You Know?

Image of the Guide's Guide cover

The Guide's Guide to Acadia National Park, originally created to share important information about the park's facilities and natural and cultural resources with commercial guides, is available to the public on this website. The guide contains everything you would want to know about the park. More...