Chemical Hazards arise from which of the following?

• A. Arise from airborne concentrations of gases, vapors or solids in the form of dust or fumes.
• B. Are caused by surface contaminants only.
• C. Are related to light exposure.
• D. Depend on ultraviolet radiation only.

Answer: (D)

Chemical hazards come from exposure to chemicals themselves. The most direct and common risk occurs when chemicals are present in the air as gases, vapors, or as airborne solids in the form of dusts or fumes, creating inhalation exposure. This airborne pathway is the primary way many chemical hazards reach people, especially in industrial settings. Surface contamination can be a route as well, but it’s not the sole or defining exposure path, and hazards tied to light or ultraviolet radiation describe different kinds of hazards (radiation/photochemical effects), not chemical hazards in the inhalation/contact sense.