• Views from Penobscot Mountain summit.


    National Park Maine

There are park alerts in effect.
show Alerts »
  • Trail Closure: Gorge Path weekdays, 7 am - 4 pm

    The section of the Gorge Path between the Hemlock Path intersection and the A. Murray Young Trail intersection is closed until rehabilitation work is completed. The closure will be in effect Mondays through Fridays only, from 7 am to 4 pm.

  • Bubble Pond Carriage Road closure

    Bubble Pond Carriage Road will be closed to all traffic Monday 9/15- Wednesday 9/17 from the parking lot to Triad-Day Mountain Bridge. More »

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?

CCC members take a break from their work to admire the view along the ocean.

The Civilian Conservation Corps performed important work in Acadia National Park, including clearing brush, setting stones, and constructing Seawall Campground. Today park headquarters is located in the former CCC camp.