Study Finds Risk Of High Lung Cancer Cases Among Naval Veterans Connected To Asbestos

The information was gathered from 30,085 British and Australian troops who served in the 1950s and 1960s

According to a study conducted by the University of Adelaide and Oxford University, asbestos exposure caused a higher prevalence of asbestos-related lung malignancies among British and Australian navy personnel than in other armed forces.

The information was gathered from 30,085 British and Australian troops who served in the 1950s and 1960s, when asbestos-containing materials were present on British and Australian naval vessels. The University of Adelaide and the UK Health Security Agency had previously studied three of the four cohorts to identify the effects of radiation exposure from British nuclear testing; however, a higher incidence of mesothelioma, a cancer strongly linked to asbestos exposure, was seen in all cohorts of naval personnel. The University of Adelaide's Dr Richie Gun and Oxford University's Dr Gerry Kendall were prompted by this finding to examine the dataset for the occurrence of lung cancers, which can also arise from asbestos exposure.

The fourth cohort was Australian veterans of the Korean War, which had been studied by the Australian Department of Veterans Affairs and the Australian Institute of Health and Welfare ."We found the lung cancer rate was higher overall in naval personnel than in the other armed services, and, while smoking remains the dominant cause of lung cancer, it is unlikely the excess could be explained by a higher smoking rate in the navy," Dr Gun said." Although actual measurements of airborne asbestos levels were not available, and estimates are difficult, we have concluded that the higher lung cancer rate in sailors was most probably caused by onboard asbestos exposure.

"This conclusion was strengthened by the occurrence of deaths in sailors from asbestosis, a condition which is non-cancerous but is nevertheless disabling and potentially fatal." The researchers have estimated that the proportion of lung cancers related to onboard asbestos exposure were of the order of 27 per cent in Australian seamen and 12 per cent in British seamen.While there is a ban on imports and strict regulatory control of asbestos-containing materials in Australia, they still pose a risk to workers and some householders. There were 142 cases of asbestosis and 111 asbestosis deaths in 2021-2022 reported in the New South Wales Dust Diseases Register.Dr Gun said the effects of asbestos exposure are likely being underestimated unless lung cancer is considered alongside mesothelioma and asbestosis. "Although it remains true that smoking causes most lung cancers, other agents such as asbestos can contribute to the incidence of cancer in an exposed population," he said. "Moreover, we know from other studies that the combination of smoking and asbestos exposure has an enhanced influence on lung cancer risk; this interactive effect would have contributed to the observed lung cancer excess."The discovery of a link between asbestos exposure and a higher incidence of lung cancer is a timely reminder of the need for protections against exposure to other harmful airborne dusts." Strict control measures are required to protect workers potentially exposed not only to asbestos but to other hazardous dusts, such as dust from engineered stone now installed in many kitchens," said Dr Gun. (ANI)


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