Silica, also called silicon dioxide, exists in many different forms and is one of the most common minerals on our planet. Silicosis is an incurable, often fatal, disease caused by exposure to one of the most common forms of silica – crystalline silica dust. Crystalline means that the oxygen and silicon atoms are arranged in a specific pattern. The dust particles are so small you can see them only with a microscope.
You may be using products or materials that contain crystalline silica and not even know it. If your workplace is a dusty one or if you work with materials that produce dust, you should be concerned about silicosis and crystalline silica hazards.
It’s not just dust! What you should know about silicosis and crystalline silica
It's not just dust! What you should know about silicosis and crystalline silicaEnglish04/10/2015
Crystalline Silica: Specified Exposure Control Methods (Table 1)English01/10/2017
Overview of Oregon OSHA’s silica rules for general industry and constructionEnglish01/10/2017
Dust control during tuckpointingEnglish09/02/2008
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Division 2, Subdivision Z, 437-002-0382, Oregon Rules for Air Contaminants
Division 2, Subdivision Z, Silica (effective 7/1/2018)
Division 3, Subdivision Z, Toxic & Hazardous Substances *
Division 4, Subdivision Z, Chemical/Toxins *
Word document versions may be available * on the Rules pages
Local Emphasis Program (LEP): Silicosis10/17/2008
Summary of comments and agency decisions regarding proposed changes to Silica and corrections to Air contaminants in Division 2 General Industry and Division 3 Construction Administrative Rules