Rischio cancerogeno da amianto nella marineria civile.

Seamen and marine engineers were formerly exposed to asbestos used in gasket, pipes, valves and machinery. Ship motion and vibration can release asbestos in the surrounding space. Asbestos fibres may also be inhaled by workers involved in maintenance operations of vessels built before 1992 in Italy. History of asbestos exposure has been reported by workers and confirmed by a higher prevalence of pleural abnormalities and a significant excess of mesothelioma with a Standardized Incidence Ratio (SIR) ranging between 1,83 and 4,8 as a function of years of exposure. SIR for lung cancer ranged between 1,10 and 1,62. Mesothelioma in seamen and marine engineers represents about 2,5% of the overall Italian mesothelioma cases with a very long latency period (47,6 ± 9,6 years). There is no epidemiological evidence for an excess risk of mesothelioma in fishermen.