Which of these exposures occurs through skin or eyes?

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

Answer: (D)

Absorption is the correct choice because it specifically refers to the process by which substances can enter the body through the skin or mucous membranes, including the eyes. This method of exposure occurs when chemicals or hazardous materials penetrate the skin or are directly absorbed into the body's tissues. Understanding absorption is crucial for HAZMAT responders, as it underscores the importance of personal protective equipment (PPE) to prevent harmful substances from coming into contact with the skin or eyes during a hazardous materials incident.

Other forms of exposure, such as ingestion, involve taking substances into the body through the mouth, while inhalation pertains to breathing in vapors, gases, or aerosols. Injection refers to substances entering the bloodstream directly through a puncture, typically involving needles. Each of these exposures occurs through different pathways, emphasizing the unique risks associated with various hazardous materials and the necessity for appropriate safety measures.