Respirable Crystalline Silica – Fact Sheet
Respirable crystalline silica (also known as RCS, silica dust, or quartz dust) is a common occupational hazard for coal and metal/nonmental (MNM) miners. Silica is a common component of rock composed of silicon and oxygen (chemical formula SiO2). Due to its small size, this dust may be inhaled and move throughout the lungs. It may…