But the tiniest specks of silica can be carried down to the alveoli where they lead to pulmonary fibrosis. Silicosis is found in various stages. It can be either mild or severe, occurring in direct proportion to the percentage and concentration of silica in the air and the duration of exposure. Breathlessness during exercise usually is the first symptom. Silicosis can be prevented by measures specifically designed for each industry and each job.
Dust control is essential.
Sometimes this is accomplished by the wetting down of mines, improved ventilation, or the wearing of masks. Reviewing the Facts There are some known and many unknown causes of interstitial lung diseases. The course of the diseases is unpredictable and puzzling. It can be so mild as to cause no symptoms, or its symptoms may be moderate to very severe and disabling. Many people with ILD have a normal life span.