Exposure to crystalline silica often occurs as part of common workplace operations involving cutting, sawing, drilling, grinding/sanding and crushing of natural and engineered stone products such as granite and slate and also in the quarrying of these materials. Over-exposure can lead to serious, sometimes fatal illnesses including silicosis, lung cancer, tuberculosis (in those with silicosis) and chronic obstructive pulmonary disease (COPD). The best method to prevent a crystalline silica exposure related disease is to minimize exposure to crystalline silica.

Learning Objectives - at the end of this segment you should be able to:

• Learn about the three types of silicosis and how your environment affects the disease.
• Review Crystalline Silica Exposure Control Measures and how best to limit risk.
• Discuss PPE that provides the best protection when working with products that contain crystalline silica.