Mesothelioma & Lung Cancer Due to Asbestos Exposure in Maine
Mesothelioma and Lung Cancer Prevalence in Maine
Prolonged exposure to microscopic asbestos fibers can lead to mesothelioma, a rare and aggressive cancer that develops in the lining of internal organs. From 2017 to 2021, Maine reported an age-adjusted mesothelioma rate of 1.3 cases per 100,000 people, with 129 new cases diagnosed during this period. According to the CDC, Maine recorded the highest asbestos-related death rate in the United States in 2017.
In addition to mesothelioma, asbestos exposure significantly increases the risk of lung cancer. In 2023, Maine reported an estimated 1,550 new lung and bronchus cancer cases, resulting in approximately 870 deaths.
Between 2017 and 2021, the age-adjusted lung cancer rate in Maine was 67.3 per 100,000 people, with 7,205 new cases recorded. As of 2014, the state's lung cancer incidence rate stood at 67.7, exceeding the national average of 53.6. While Maine ranks 44th nationwide for lung cancer incidence, the rate of new cases has improved by approximately 10 percent over the last five years.
Maine's long industrial history and aging infrastructure have left many workers and residents unknowingly exposed to asbestos for decades.
Contributing Factors to Asbestos Exposure
Several traditional industries have played a major role in asbestos exposure across Maine. Shipbuilding, construction, and boat building relied heavily on asbestos for insulation and fireproofing. Shipyards such as the New England Shipbuilding Corporation and South Dry Dock in South Portland used asbestos extensively, placing workers and military veterans at elevated risk.
Power generation also contributed to exposure, particularly at facilities like the Maine Yankee Nuclear Power Plant, where asbestos was used to insulate boilers, turbines, and machinery. Similarly, Maine's paper industry—including companies such as Oxford Paper Company and Georgia Pacific Paper Mill—used asbestos in drying equipment, machinery insulation, and sandpaper backing.
Residential exposure remains a concern, as approximately 31 percent of homes in Maine were built before 1950 and may contain asbestos materials. Renovation, repair, or demolition of these structures can release harmful fibers into the air. Veterans account for nearly 30 percent of mesothelioma diagnoses in the state, largely due to asbestos use at military installations such as Dow Air Force Base.
Smoking further increases the likelihood of developing lung cancer among individuals exposed to asbestos, compounding long-term health risks.