Why Mesothelioma Cases Occur in New Hampshire
New Hampshire's mesothelioma history is rooted in four industries that defined the state's economy for much of the 20th century: naval shipbuilding, paper manufacturing, textile production, and power generation. Each of these industries relied on asbestos-containing materials for insulation, fireproofing, and equipment protection, and together they exposed thousands of New Hampshire workers to deadly asbestos fibers over decades.
According to WikiMesothelioma.com, New Hampshire workers in these industries faced significant occupational asbestos exposure that continues to produce mesothelioma diagnoses today. The Portsmouth Naval Shipyard, located on Seavey's Island at the border of New Hampshire and Maine (in Kittery, Maine), is the most prominent exposure site in the region. Though technically located in Maine, the shipyard drew the majority of its workforce from New Hampshire's seacoast communities, making it the single largest source of asbestos exposure for New Hampshire residents.
Inland, New Hampshire's paper mills in the North Country — particularly in Berlin and Groveton — and textile mills in Manchester, Nashua, and other cities used asbestos insulation extensively in their boiler systems, steam distribution networks, and processing equipment. These industries employed entire communities for generations, and the workers who maintained and operated the mills' high-temperature systems bore the brunt of asbestos exposure.
The 20-to-50-Year Latency Period
Mesothelioma does not appear immediately after asbestos exposure. The disease has a latency period of 20 to 50 years. A shipyard worker who installed asbestos insulation on submarine piping at Portsmouth in the 1960s may only receive a mesothelioma diagnosis in the 2020s. A paper mill boiler operator in Berlin who handled asbestos-insulated equipment in the 1970s may be diagnosed now. This long latency period is why New Hampshire continues to produce new mesothelioma cases decades after asbestos use was curtailed.
New Hampshire's Asbestos Exposure Profile
New Hampshire's mesothelioma cases come from a concentrated set of industries: naval shipbuilding at Portsmouth, paper mills in the North Country, textile mills in the Merrimack Valley, and power plants across the state. If you worked in any of these industries in New Hampshire before the mid-1980s, documenting your asbestos exposure history is a critical first step toward potential compensation.