Which of the following is a TRACEMP hazard category?

• A. Electrical
• B. Mechanical
• C. Biological
• D. Radiological

Answer: (D)

In TRACEMP, hazards are grouped into categories to guide response and safety measures. Radiological hazards cover radioactive materials or sources that can emit ionizing radiation or cause contamination. These hazards create exposure and cross‑contamination risks, so responders must use detection instruments, establish controlled zones, apply time-distance-shielding principles, and carry out careful decontamination. That combination of specific detection, containment, and decontamination needs is what makes radiological the correct TRACEMP category in this scenario. Electrical hazards involve electrical shock or fire risks, mechanical hazards relate to physical danger from equipment, and biological hazards involve pathogens; they are not the TRACEMP category highlighted here.