were used in combination with cement to manufacture pipes over 100 years ago in Genoa, Italy.
Early on during studies of experimental animals exposed by inhalation to asbestos fibers
, it was recognized that fiber length was a determining factor in pathogenicity.
Persons who have occupations, or persons who reside in environments, that subject them to the inhalation of asbestos fibers
are at risk for developing asbestosis.
Exposed friable materials have the greatest potential for releasing asbestos fibers
on a continuous basis and, therefore, are of greatest health concern.
Some types of asbestos fibers
are still in use in many parts of the world today (Azari et al.
We excluded these cases from our analysis of the relationship between fibrosis score and commercial asbestos fiber
Rieder's study "is a very elegant demonstration of the mechanisms by which asbestos fibers
are incorporated into cells - one that I think will yield new insights into our understanding of the consequences of asbestos exposures and perhaps the importance of fiber size," says J.
Analysis of asbestos fiber
burden in lung tissue from mesothelioma patients.
They also argued that it was Tyler's work at Foundry Service & Supplies that caused him to be exposed to the asbestos fibers
, especially since in the early 1970s the shop used disposable face masks manufactured by 3M Co.
The agency said the public was not in danger; air samples contained no asbestos fibers
Although asbestos causes a range of neoplastic and non-neoplastic human health effects, not all types of asbestos fibers
have the same disease-causing potential, and the mode of action (MOA) of specific types of asbestos and related fibers for various health outcomes are not well understood.
The project was ordered shut down by the state Department of Environmental Protection in 2009 after investigators discovered required precautions were not taken to prevent the release of asbestos fibers
, which can cause cancer and other serious respiratory problems when inhaled.