Mid-Sized Barns. Mid-Sized Barns-from 7 to 15 stalls. Some mid-sized horse barns are private, but often a mid-sized barn has to work for a living. . . as a boarding facility, a training barn, or the center of a breeding operation.
This can cause scarring. Asbestosis, caused by exposure to asbestos, causes scarring and might lead to lung cancer. Silicosis, caused by the inhalation of silica dust, will also cause scarring in the lungs. Mining of gold, lead, copper, zinc, iron and anthracite can result in silicosis if the proper precautions are not taken.
The scar tissue on the lungs affects the lungs' function and is irreversible. Hemera Technologies/AbleStock.com/Getty Images. Occupational and Environmental Factors. Long-term exposure to toxins and pollutants such as silica dust or asbestos increases your risk of lung disease that can lead to scar tissue.