alexa Rapidly Progressing Coal Workers Pneumoconiosis as a Confounding Risk Factor in Assessing Coal Mine Dust Safe Exposure Levels
ISSN: 2161-0495

Journal of Clinical Toxicology
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Research Article

Rapidly Progressing Coal Workers Pneumoconiosis as a Confounding Risk Factor in Assessing Coal Mine Dust Safe Exposure Levels

John F Gamble*, Robert B Reger and Robert E Glenn

Consultant, Somerset, NJ, USA

*Corresponding Author:
John F Gamble
Consultant, Somerset, NJ, USA
E-mail: [email protected]

Received date: November 12, 2011; Accepted date: December 06, 2011; Published date: December 10, 2011

Citation: Gamble JF, Reger RB, Glenn RE (2011) Rapidly Progressing Coal Workers Pneumoconiosis as a Confounding Risk Factor in Assessing Coal Mine Dust Safe Exposure Levels. J Clinic Toxicol S1:003. doi: 10.4172/2161-0495.S1-003

Copyright: © 2011 Gamble JF, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



The US coal mine dust (“CMD”) standard is among the lowest in the world. Lowering exposures to 2 mg/m3 markedly reduced prevalence of coal workers pneumoconiosis (“CWP”). Lowering the standard to 1 mg/m3 is proposed because of a recent increase in rapidly progressive coal workers pneumoconiosis.

The purpose of this report is to evaluate the characteristics of the reported rapidly progressive CWP to evaluate these findings with regard to classical characteristics of CWP and to establish whether these rapidly progressive cases call for a lowering of the CMD standard.

We conclude that rapidly progressing CWP appears to be silicosis based on rapid progression of disease, the characteristics of the radiological changes observed, and the high quartz exposures experienced by these cases.

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