ID#: 9434
Caption:
This 1958 historical photograph was provided by the Center for Disease Control's (CDC), National Institute for Occupational Safety and Health (NIOSH), and depicted the loading operation inside a diatomaceous earth quarry in Lompoc, California. Both truck and tractor cabs were enclosed and ventilated, to reduce the drivers’ exposure to the quarry dust. Inhaled dust or other airborne particulate materials containing silica that is deposited in the lungs, will cause the lung tissue to react by creating generalized nodular fibrotic changes, and is known as pneumoconiosis, which is also known as pneumosilicosis, or grinders’ disease. The image originally appeared in a U.S. Public Health Service Publication No. 601, in an article entitled,“Pneumoconiosis in Diatomite Mining and Processing”, 1958.
High Resolution: Click here for hi-resolution image (5.71 MB)
Content Provider(s): CDC/ Barbara Jenkins, NIOSH
Creation Date: 1958
Photo Credit: Unknown
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.