What are the two types of contamination responders may face?

The correct answer identifies the two distinct types of contamination that responders may encounter in hazardous materials situations: primary and secondary contamination.

Primary contamination refers to direct exposure to hazardous substances. This can occur when responders come into contact with the chemical agent or material itself, either through inhalation, skin contact, or ingestion. Understanding primary contamination is crucial for responders, as it necessitates immediate protective measures to ensure their safety and prevent the spread of the contaminant.

Secondary contamination, on the other hand, occurs when an individual or object becomes contaminated by contact with another person, object, or surface that is already contaminated. This type of contamination emphasizes the importance of decontamination protocols, as it highlights how contaminants can be transferred from one area to another, potentially affecting more individuals and increasing the risk of exposure.

By recognizing both primary and secondary contamination, responders can implement appropriate protective actions and decontamination procedures that are essential for their safety and the safety of the public.