Dust exposure and mortality in an American chrysotile asbestos friction products plant.

Dust exposure and mortality in an American chrysotile asbestos friction products plant. Research Abstract Details 

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Dust exposure and mortality in an American chrysotile asbestos friction products plant. Abstract Text:

Cohort studies in three American asbestos factories were undertaken to investigate the effect of fibre type and manufacturing process on lung cancer, mesothelioma, and asbestosis. Reports have been published on a chrysotile textile plant in South Carolina and a mainly textile plant in Pennsylvania, which also used amphiboles. In the third plant in Connecticut friction products and packings were made from chrysotile only. In a cohort of 3641 men employed for one month or more, 1938-58, 3513 (96.5%) were traced, 1267 (36%) had died, and death certificates were obtained for 1228 (96.9%). Individual exposures were estimated (in mcpf . years) from impinger measurements. Life table analyses using Connecticut mortality rates gave an SMR for all causes of 108.5 (USA 107.9). The SMR (all causes) for men who had worked for less than a year was 129.9 and for those who had worked for a year or more, 101.2. The equivalent SMRs for respiratory cancer were 167.4 and 136.7 respectively. Excluding men who had worked for less than a year, there was possible evidence of some increase in risk of lung cancer with increasing exposure, supported also by a "log-rank" (case-control) analysis, of the same order as that observed in chrysotile mining and milling. These findings may be compared with chrysotile textile manufacture where the risk of lung cancer was some 50-fold greater. It is suggested that the differences in risk are perhaps related to the higher proportion of submicroscopic fibres in textile manufacture that may result from the traumatic carding , spinning, and weaving processes. No case of mesothelioma was found, consistent with a much lower risk of this tumour with chrysotile than with amphiboles. Twelve deaths (nine in men with very short and low asbestos exposure) were given ICD code 523 (pneumoconiosis); all but two were ascribed to anthracosilicosis or silicosis and none to asbestosis.

Dust exposure and mortality in an American chrysotile asbestos friction products plant. Publishing Authors By Initials

For similar technology, industry, and agriculture: industry: textile industry research abstracts see: technology, industry, and agriculture: industry: textile industry research

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Dust exposure and mortality in an American chrysotile asbestos friction products plant. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: British journal of industrial medicine

VOLUME: 41

Page Numbers: 151-7

Journal Abbreviation: Br J Ind Med

ISSN: 0007-1072

DAY: 28

MONTH: May

YEAR: 1984

Dust exposure and mortality in an American chrysotile asbestos friction products plant. Information

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LANGUAGE: eng

NlmUniqueID: 370637

Dust exposure and mortality in an American chrysotile asbestos friction products plant. Keywords Mesh Terms:

KEYWORDS: Textile Industry

MESH TERMS: adverse effects

Chemical & Substance for Abstract: Dust exposure and mortality in an American chrysotile asbestos friction products plant. Information

Substance Name: Silicon Dioxide

Registry Number: 7631-86-9

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Country: ENGLAND

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MEDLINETA: Br J Ind Med

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