What is an essential step for first responders when dealing with suspected hazardous materials?

The essential step for first responders when dealing with suspected hazardous materials is to use barriers to separate contaminated from non-contaminated areas. This action helps to contain the potentially harmful substances and minimize the risk of cross-contamination. By establishing physical barriers, first responders can control the spread of hazardous materials, protect themselves, other responders, and the general public from exposure, and create a safer environment for conducting assessments and providing treatment.

In hazardous material situations, achieving clear distinctions between contaminated and uncontaminated sections is crucial for the safety of everyone involved. This separation aids in managing the scene efficiently and prevents further escalation of the situation by limiting the spread of toxins or hazardous agents.