Causes Of Pneumoconioses

Silica Dust

Silica dust is responsible for a form of pneumoconioses known as silicosis. Individuals who work with rock and sand for a living, such as miners and stonemasons, have a particularly high risk of silica exposure. This is because silica dust comes from rock and sand particles; it is released when these materials are handled. Chronic exposure to small amounts of silica can cause a less acute type of silicosis called simple silicosis. In this case, the lungs will develop many tiny nodules. These nodules are the result of small patches of tissue being damaged, scarred, and inflamed. Simple silicosis usually has few symptoms, but it can develop into more severe forms of silicosis. The other two forms are accelerated silicosis and acute silicosis; acute silicosis is the most severe and can easily lead to death. While simple silicosis may take as long as twenty years to develop, acute silicosis can progress in a matter of weeks.

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