These very small, microscopic dust particles are invisible to the naked eye; yet they are the portion of dust that is dangerous. Visible dust contains RCS. But even when no dust is visible, RCS can still be and often is present when there are dust-generating activities.
The primary health risk from RCS exposure is silicosis. Studies have also identified lung cancer as a potential disease associated with occupational exposure to RCS. Other studies have linked RCS exposure to an increased risk of developing autoimmune disorders, diseases affecting the kidneys, tuberculosis, and other non-malignant respiratory diseases. There is no treatment for the condition: but it is 100% preventable.