In order to determine areas likely to be endangered during a hazmat/wmd incident, what must the technician first be able to do?

The correct choice is predicting the dispersion pattern. Understanding how a hazardous material will disperse in the environment following a release is crucial for determining which areas could potentially be impacted. Dispersion patterns are influenced by various factors such as the type of material, the method of release, environmental conditions, and topography. By accurately predicting how the hazardous material might spread, technicians can effectively assess risk areas, implement protective measures, and ensure the safety of both emergency responders and the public.

Once the dispersion pattern is known, it becomes easier to identify potential sources of contamination, assess victim needs, and establish containment zones. These subsequent actions depend on having a clear understanding of where the hazardous material is likely to travel, making the prediction of dispersion patterns the foundational step in the incident response process.