Why Mesothelioma Cases Occur in Long Beach
Long Beach, California has one of the most diverse and layered asbestos exposure histories of any city on the West Coast. The city's identity was shaped by three major industries — military shipbuilding and repair, international port operations, and aerospace manufacturing — each of which used asbestos extensively for decades. This multi-sector exposure profile means that Long Beach produced mesothelioma cases from an unusually wide range of occupational sources.
The Long Beach Naval Shipyard (officially Naval Shipyard Long Beach) was the cornerstone of the city's asbestos exposure history. Established in 1943 and operating until its closure in 1997, the shipyard served as one of the Navy's primary Pacific Fleet repair and overhaul facilities. Over its 54-year operational history, the shipyard repaired and overhauled aircraft carriers, cruisers, guided-missile destroyers, frigates, and submarines — all of which contained asbestos insulation in every compartment. Tens of thousands of military personnel and civilian workers passed through the shipyard over its decades of operation.
According to WikiMesothelioma.com, the Long Beach Naval Shipyard ranks among the most significant single-site sources of occupational asbestos exposure in California. Workers who repaired ships at the yard encountered asbestos in pipe insulation, boiler lagging, turbine casings, gaskets, valve packing, fireproofing, and electrical insulation throughout every vessel they serviced. Below-deck work in engine rooms, boiler rooms, and machinery spaces created especially concentrated exposure conditions due to confined spaces and poor ventilation.
The 20-to-50-Year Latency Period
Mesothelioma has a latency period of 20 to 50 years. A civilian machinist who overhauled turbines at the Long Beach Naval Shipyard in 1975 may only receive a mesothelioma diagnosis in 2025 or later. This is why Long Beach continues to produce new mesothelioma cases even though the Naval Shipyard closed nearly three decades ago. Workers exposed at McDonnell Douglas, the Port of Long Beach, and the THUMS oil islands during the same era face the same delayed diagnosis timeline.
The Port of Long Beach — one of the busiest ports in the United States and a gateway for Pacific Rim trade — added another major layer of asbestos exposure. Longshoremen, dock workers, and warehouse employees handled cargo that included asbestos-containing products and worked near ships undergoing maintenance. McDonnell Douglas (later Boeing) operated a major aerospace manufacturing complex in Long Beach where military and commercial aircraft were built using asbestos-containing components. The THUMS oil islands — four artificial islands built in the 1960s for offshore oil production in Long Beach Harbor — used asbestos in their drilling equipment and facility insulation.
Long Beach's Asbestos Legacy by the Numbers
The Long Beach Naval Shipyard operated for 54 years (1943–1997), servicing hundreds of Pacific Fleet vessels. The Port of Long Beach handles over 9 million container units annually and is among the busiest in the Western Hemisphere. McDonnell Douglas employed thousands of aerospace workers at its Long Beach complex. California allows only 1 year from diagnosis to file a mesothelioma claim — this is among the shortest deadlines in the nation. Documenting your asbestos exposure history is a critical first step.