Mortality from mesothelioma of the pleura during 1968-78 in England and Wales

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Abstract
The geographical distribution of mortality from mesothelioma of the pleura during the years 1968-78 in England and Wales has been studied using extracts from the death records held by the Office of Population Censuses and Surveys. Using the national death rate as standard, Local Authority areas with raised mortality are identified. The patterns are somewhat different for each sex. In men the high-mortality areas are mainly the major ports where shipbuilding and repairing have been concentrated, whereas in women areas where gas masks are manufactured are predominant. In both sexes there are also high death rates on the eastern side of London. Nearly all the areas of high mortality are known to have had a major asbestos-using industry in the past. Over the 11-year period the annual number of deaths from pleural mesothelioma rose by approximately 75%. This marked increase was virtually confined to men, in whom the number of deaths had reached almost 200 per annum by 1978. The indications are that the effect of past high exposures, in particular to amphibole asbestos, have not yet reached a peak in terms of mortality. On the other hand imports and usage of amphiboles, particularly crocidolite, have decreased rapidly since the mid-1960s, and dust levels in the working environment have improved even more radically.