Which of the following is NOT a common route of exposure to hazardous materials?

• A. Ingestion
• B. Absorption
• C. Inhalation
• D. Displacement

Answer: (D)

Displacement is not considered a common route of exposure to hazardous materials. In the context of hazardous materials, common routes of exposure typically include ingestion, absorption, and inhalation.

Ingestion refers to swallowing harmful substances, which can occur through contaminated food or drink. Absorption involves the hazardous materials entering the body through the skin or mucous membranes, often from direct contact with chemicals or contaminants. Inhalation is the process of breathing in hazardous vapors, gases, or particles, which can quickly lead to systemic effects since the respiratory system allows substances to enter the bloodstream.

Displacement, however, does not fit into the category of exposure routes. It generally refers to the process of one material being moved by another, often seen in chemical reactions or physical processes, rather than a means by which an individual could be exposed to hazardous materials.