Maine misses EPA deadline to submit pollution reduction plan

The U.S. EPA has issued a notice to Maine that the state missed a deadline to submit plans to reduce air pollution in Acadia National Park.
View of Acadia National Park on a hazy, polluted day.
An image from the Acadia hazecam on a polluted day with visibility of 30 miles. Source: CAMNET.

Editor’s Note: The following story first appeared in The Maine Monitor’s free environmental newsletter, Climate Monitor, that is delivered to inboxes for every Friday morning. Sign up for the free newsletter to get important environmental news by registering at this link.

If you’ve lived here for any appreciable amount of time, you’ve probably heard Maine referred to as the “tailpipe of the nation.” Prevailing winds carry pollutants up from the Midwest and the rest of New England, periodically resulting in smoggy, hazy days, particularly in the hot summer months. On the east coast, that haze comes from power plants, industrial boilers, industrial processes, and emissions from cars and trucks.

“Even if we had really great emission standards in Maine, the way that the air currents work in the country, we’re getting so much from the Midwest anyway,” Madeleine Fenderson, an organizer with Environment Maine Research and Policy Center, told Maine Public in 2018. “In order for us to really see the results in our air quality it needs to be a federal mandate.”

Much of that smog settles in some of our most treasured natural places, where residents and visitors alike come to enjoy the dazzling scenery and abundant wildlife. In 1999, in an effort to preserve those views, the Environmental Protection Agency initiated a major effort to improve air quality in national parks and wilderness areas around the country, calling it the Regional Haze Rule.

This week, the EPA sent notices to Maine and 14 other states that missed a deadline to under that rule submit plans to reduce air pollution in Acadia National Park, Roosevelt Campobello International Park, and Moosehorn Wilderness Area.

The rule requires each state to submit a State Implementation Plan (SIP) every 10-years and a 5-year Progress Report after each SIP. Maine submitted its most recent progress report to the EPA in 2016; an updated SIP was due in July of 2021. Along with Maine, Alabama, Illinois, Iowa, Kentucky, Louisiana, Minnesota, Mississippi, Missouri, Nebraska, New Mexico, Pennsylvania, Rhode Island, Vermont, and Virginia also missed that deadline and another 6-month extended deadline that followed.

The notices issued to states are also the subject of a lawsuit filed by four environmental organizations, including the Sierra Club. The lawsuit argues that, by not issuing notices of violations to states that had missed the deadline, the EPA was neglecting to enforce its own rule. States issued violation notices now have two years to either submit a late plan or accept an EPA-written plan.

“It’s up to EPA, the agency charged with protecting human health and the environment, to hold these states accountable to the law and ensure our national parks, rangers, visitors, wildlife and surrounding communities have clear skies and clean air to breathe,” said Stephanie Kodish, senior director and counsel for National Parks Conservation Association’s Clean Air and Climate programs, in a statement.

The Monitor was unable to reach the Maine Department of Environmental Protection by the time this newsletter was published Friday morning. A draft of a comprehensive revision of the state’s regional haze plan dated March 1, 2021, which indicates that air quality is improving and is expected to continue to improve over the next decades.

Air pollution may not always be the most visible of environmental hazards in Maine, but it still takes a toll on the health of all of us. The state has the third highest asthma rate in the nation, despite our small cities and hundreds of miles of wilderness. Thirty years of air quality monitoring have shown that Acadia receives some of the highest levels of pollution in the northeast, according to park literature, and pollution remains “one of the most important environmental issues facing the park.”


To read the full edition of this newsletter, see Climate Monitor: Maine misses EPA deadline to submit pollution reduction plan.

Kate Cough covers climate change and the environment for The Maine Monitor. Reach her by email with ideas for other stories at


Kate Cough

Kate Cough is editor of The Maine Monitor. She previously served as enterprise editor for The Monitor while also covering energy and the environment and writing the weekly Climate Monitor newsletter. Before joining The Monitor, Kate was a beat reporter for The Ellsworth American and digital media strategist for The Ellsworth American and Mount Desert Islander. Kate graduated with honors from Columbia University Graduate School of Journalism and Magna Cum Laude from Bryn Mawr College. Kate is an eighth generation Mainer, who lives on Mount Desert Island with her husband, daughter, and dogs.
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