Which of the following is not considered a general route of entry for hazardous materials?

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

Answer: (D)

The way hazardous materials typically enter the body is through inhalation, ingestion, or absorption through the skin or mucous membranes. These are the standard pathways by which contaminants can reach internal tissues during a hazmat incident. Radiation, on the other hand, isn’t a general route of entry for hazardous materials. It’s a form of hazard exposure, not a means by which a chemical or material enters the body. While radioactive material can cause harm if it’s inhaled, ingested, or absorbed, those are exposure scenarios for radioactive substances, not a basic entry route for hazardous materials in general. So radiation doesn’t fit as a general route of entry.