You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Characterization by Scanning Transmission Electron Microscopy of Silica Particles from Alveolar Macrophages of Coal Miners
Lenore C. Rainey, Peter Bolsaitis, Barbara Dirsa and John B. Vander Sande
Environmental Health Perspectives
Vol. 102, No. 10 (Oct., 1994), pp. 862-868
Published by: The National Institute of Environmental Health Sciences
Stable URL: http://www.jstor.org/stable/3432119
Page Count: 7
You can always find the topics here!Topics: Composite particles, Coal mining, Macrophages, Minerals, Quartz, Lungs, Mining, Alveolar macrophages, Chemical composition, Particle diffraction
Were these topics helpful?See something inaccurate? Let us know!
Select the topics that are inaccurate.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Preview not available
The structure and composition of silica-rich particles recovered by lavage from the lungs of three active miners with different medical histories were studied using high-resolution electron microscopy and chemical microanalysis. The results are compared to the similarly determined structure and composition of respirable-size mineral particles obtained from roof-bolter dust-box samples from two coal mines of widely different bulk quartz concentrations. The results show that the lungs of the miners contain silica-based particles with structures not found in the mine samples. Also, the particle structures and compositions found in the macrophages were different in each of the miners. The results suggest the possibility that intracellular processes may affect the susceptibility of individuals to silica-induced pneumoconioses.
Environmental Health Perspectives © 1994 The National Institute of Environmental Health Sciences