Libby Amphibole Contamination in Tree Bark Surrounding Historical Vermiculite Processing Facilities
نویسندگان
چکیده
منابع مشابه
Mesothelioma associated with commercial use of vermiculite containing Libby amphibole.
OBJECTIVES To describe asbestos-related mortality among manufacturing workers who expanded and processed Libby vermiculite that contained amphibole fiber. METHODS Standardized mortality ratio was calculated for 465 white male workers 31 years after last Libby vermiculite exposure. RESULTS Two workers died from mesothelioma, resulting in a significantly increased standardized mortality ratio...
متن کاملMortality in a cohort of vermiculite miners exposed to fibrous amphibole in Libby, Montana.
BACKGROUND Fibrous tremolite is a widespread amphibole asbestiform mineral, airborne fibres of which constitute an environmental hazard in Libby, Montana, northern California, and elsewhere. AIMS To determine excess risk from lung cancer, mesothelioma, and all-cause mortality in a cohort of men exposed to tremolite, but no other form of asbestos. METHODS Mortality by certified cause and var...
متن کاملAmphibole-asbestos, Vermiculite Mining and Libby, Montana: What’s in a Name?
Introduction: Over the past year, tremoliteasbestos and vermiculite mining in Libby, Montana have gone from obscurity to the forefront of the national media. The Seattle Post-Intelligencer “broke” the story in November 1999 about the world’s largest vermiculite mine and the problems associated with its asbestos exposure. As the stories point out, several hundred miners, their families, and non-...
متن کاملFate of Libby amphibole fibers when burning contaminated firewood.
In Libby, Montana, over 70 years of mining amphibole-contaminated vermiculite has led to amphibole contamination in areas surrounding the abandoned mine and in other areas throughout the town. In addition to contaminated soils, tree bark has also been found to be contaminated with amphibole fibers throughout the Libby area. As residential woodstoves are the main source of home heating in Libby,...
متن کاملExposure to airborne amphibole structures and health risks: Libby, Montana.
Libby, Montana is the site of a large vermiculite deposit that was mined between 1920 and 1990 to extract vermiculite for commercial applications such as insulation, gardening products, and construction materials. The Libby vermiculite deposit also contains amphibole minerals including tremolite, actinolite, richterite, and winchite. Historically, Libby mine workers experienced high exposures t...
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ژورنال
عنوان ژورنال: Journal of Environmental Protection
سال: 2011
ISSN: 2152-2197,2152-2219
DOI: 10.4236/jep.2011.28122