Silica - WorkSafeBC
Silica is the basic component in sand and rock. It's in construction materials such as: Concrete, concrete block, cement, and mortar Masonry, tiles, brick, and refractory brick Granite, sand, fill dirt, and top soil Asphalt-containing rock or stone Abrasive used for blasting Silica is the most common hazard on a11.19.1 Sand And Gravel Processing,Emissions from the production of sand and gravel consist primarily of particulate matter (PM) and particulate matter less than 10 micrometers (PM-10) in aerodynamic diameter, which are emitted by many operations at sand and gravel processing plants, such as conveying, screening, crushing, and storing operations.Occupational Silica Dust Exposure Control Plan,1. Health hazards of silica dust exposure (including signs and symptoms of silicosis). 2. Operations and materials that can produce silica dust exposure. 3. Engineering and work practice controls used to protect them from exposures. 4. The importance of proper equipment and control maintenance. 5. Housekeeping procedures. 6.