| http://www.w3.org/ns/prov#value | - Dust, concrete, metal and other particles; Chemicals such as acids, bases, fuels, solvents, lime and wet or dry cement powder; Falling or shifting debris, building materials and glass; Smoke and noxious or poisonous gases; Welding light and electrical arcs; Thermal hazards and fires; and Bloodborne pathogens (hepatitis or HIV) from blood, body fluids and human remains.
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