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Angel dust may refer to: 1  A common name for the drug phencyclidine (PCP). 2  A common name for the drug clenbuterol. 3  Angel dusting, the misleading marketing practice of including a minuscule amount of an active ingredient in a cosmetic, nutritional supplement, or food product, insufficient to cause any measurable benefit.
Dust is a threat both to mineworkers and to communities near mines. The most dangerous kinds of dust are coal dust, which causes black lung disease, and silica dust, which causes silicosis. Dust that contains asbestos (which causes asbestosis) or heavy metals is also dangerous. 1 Signs of lung damage.