Unlike Type I AC pipes, silica was added to the mixture of asbestos fibers
and Portland cement during the manufacturing of Type II AC pipes.
The mechanism of production of pulmonary and pleural lesions caused by the inhalation of asbestos fibers
appears to involve insults to the peripheral airways, alveolar walls, and the pulmonary interstitium.
The optical and electron microscopic determination of pulmonary asbestos fiber
concentration and its relation to the human pathological reaction.
There were 24 uncoated amphibole asbestos fibers
[23 anthophyllite (Figure 5) and one tremolite] in the scanned area (Table 2).
Given the variability in the breadth of knowledge for specific mineral fibers, a full discussion of each type of asbestos fibers
is beyond the scope of this summary report.
The insoluble asbestos fibers
may instead trigger PKC activation by some unknown change in the membrane, they say.
Researchers, led by Professor Kenneth Donaldson at the University of Edinburgh in the United Kingdom, examined the potential for long and short carbon nanotubes, long and short asbestos fibers
, and carbon black to cause pathological responses known to be precursors of mesothelioma.
Airborne asbestos fibers
are all different sizes, and the smaller the fiber, the more potentially dangerous.
They pulled up shrubbery and scraped off 2 inches of topsoil contaminated with asbestos fibers
released from the shingles by last weekend's power-washing.
According to the court, there was no evidence of either the intensity or duration of the alleged exposure in most of the cell block, and even in areas where exposure was assumed, there was no evidence as to the concentration of airborne asbestos fibers
or that the inmate had an asbestos-related disease.
Evaluation of two cleaning methods for the removal of asbestos fibers
Residents like Scoggins, though, can only wait and worry about how many asbestos fibers
they might have inhaled over the years.