Malignant Mesothelioma Among Employees of a Connecticut Factory That Manufactured Friction Materials Using Chrysotile Asbestos: An Update.
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| Title: | Malignant Mesothelioma Among Employees of a Connecticut Factory That Manufactured Friction Materials Using Chrysotile Asbestos: An Update. |
|---|---|
| Authors: | Finkelstein, Murray M1,2 murray.finkelstein@utoronto.ca, Meisenkothen, Christopher3 |
| Source: | Annals of Work Exposures & Health. Jan2020, Vol. 64 Issue 1, p106-109. 4p. 1 Chart. |
| Subjects: | Mesothelioma risk factors, Asbestos, Industrial hygiene, Manufacturing industries, Occupational hazards, Environmental exposure |
| Geographic Terms: | Connecticut |
| Abstract: | There is an ongoing argument about the potency of chrysotile asbestos to cause malignant mesothelioma. Authors of chrysotile risk assessments have relied upon the results of an epidemiologic study, published in 1984, to state that there were no mesotheliomas found among workers at a Connecticut friction products plant. McDonald reported the first two cases in 1986. In 2010, we reported the work histories and pathologic reports of five individuals from the Connecticut plant who were diagnosed with mesothelioma. Despite this, a review of the health effects of chrysotile published in 2018 continued to state that there were no cases of mesothelioma from this plant. We report here two new cases that were diagnosed after the publication of our previous report, bringing the current total to nine cases. We also discuss the results of previously unpublished air sampling data from the plant. Chrysotile, mainly from Canada, was the only asbestos fiber type used until 1957 when some anthophyllite was added in making paper discs and bands. Beyond this original description of the anthophyllite usage from McDonald, there is a dearth of information about the amount of anthophyllite used in the plant, the frequency of its use, and the specific departments where it was used. For over 30 years in the published literature, this factory has alternatively been described as a 'chrysotile' or 'predominantly chrysotile' factory. While it is clear that some anthophyllite was used in the factory (in addition to 400 pounds of crocidolite in the laboratory), given the volume, frequency, and processes using chrysotile, it still seems satisfactory to describe this cohort as a predominantly, but not exclusively, chrysotile-exposed cohort. [ABSTRACT FROM AUTHOR] |
| Copyright of Annals of Work Exposures & Health is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Items | – Name: Title Label: Title Group: Ti Data: Malignant Mesothelioma Among Employees of a Connecticut Factory That Manufactured Friction Materials Using Chrysotile Asbestos: An Update. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Finkelstein%2C+Murray+M%22">Finkelstein, Murray M</searchLink><relatesTo>1,2</relatesTo><i> murray.finkelstein@utoronto.ca</i><br /><searchLink fieldCode="AR" term="%22Meisenkothen%2C+Christopher%22">Meisenkothen, Christopher</searchLink><relatesTo>3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Annals+of+Work+Exposures+%26+Health%22">Annals of Work Exposures & Health</searchLink>. Jan2020, Vol. 64 Issue 1, p106-109. 4p. 1 Chart. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Mesothelioma+risk+factors%22">Mesothelioma risk factors</searchLink><br /><searchLink fieldCode="DE" term="%22Asbestos%22">Asbestos</searchLink><br /><searchLink fieldCode="DE" term="%22Industrial+hygiene%22">Industrial hygiene</searchLink><br /><searchLink fieldCode="DE" term="%22Manufacturing+industries%22">Manufacturing industries</searchLink><br /><searchLink fieldCode="DE" term="%22Occupational+hazards%22">Occupational hazards</searchLink><br /><searchLink fieldCode="DE" term="%22Environmental+exposure%22">Environmental exposure</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Connecticut%22">Connecticut</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: There is an ongoing argument about the potency of chrysotile asbestos to cause malignant mesothelioma. Authors of chrysotile risk assessments have relied upon the results of an epidemiologic study, published in 1984, to state that there were no mesotheliomas found among workers at a Connecticut friction products plant. McDonald reported the first two cases in 1986. In 2010, we reported the work histories and pathologic reports of five individuals from the Connecticut plant who were diagnosed with mesothelioma. Despite this, a review of the health effects of chrysotile published in 2018 continued to state that there were no cases of mesothelioma from this plant. We report here two new cases that were diagnosed after the publication of our previous report, bringing the current total to nine cases. We also discuss the results of previously unpublished air sampling data from the plant. Chrysotile, mainly from Canada, was the only asbestos fiber type used until 1957 when some anthophyllite was added in making paper discs and bands. Beyond this original description of the anthophyllite usage from McDonald, there is a dearth of information about the amount of anthophyllite used in the plant, the frequency of its use, and the specific departments where it was used. For over 30 years in the published literature, this factory has alternatively been described as a 'chrysotile' or 'predominantly chrysotile' factory. While it is clear that some anthophyllite was used in the factory (in addition to 400 pounds of crocidolite in the laboratory), given the volume, frequency, and processes using chrysotile, it still seems satisfactory to describe this cohort as a predominantly, but not exclusively, chrysotile-exposed cohort. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Annals of Work Exposures & Health is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1093/annweh/wxz082 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 4 StartPage: 106 Subjects: – SubjectFull: Mesothelioma risk factors Type: general – SubjectFull: Asbestos Type: general – SubjectFull: Industrial hygiene Type: general – SubjectFull: Manufacturing industries Type: general – SubjectFull: Occupational hazards Type: general – SubjectFull: Environmental exposure Type: general – SubjectFull: Connecticut Type: general Titles: – TitleFull: Malignant Mesothelioma Among Employees of a Connecticut Factory That Manufactured Friction Materials Using Chrysotile Asbestos: An Update. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Finkelstein, Murray M – PersonEntity: Name: NameFull: Meisenkothen, Christopher IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 23987308 Numbering: – Type: volume Value: 64 – Type: issue Value: 1 Titles: – TitleFull: Annals of Work Exposures & Health Type: main |
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