How should responders assess the risks associated with a hazardous material?

The correct approach for responders to assess the risks associated with a hazardous material is to use the information contained in the Emergency Response Guidebook (ERG) pertaining to the specific substance. The ERG provides crucial details about the properties of various hazardous materials, including their potential health effects, necessary precautions, and appropriate emergency response actions. By referencing the ERG, responders can obtain accurate and reliable information tailored to the specific situation they are facing, thereby facilitating informed decision-making and enhancing safety for both responders and the public.

The other options are less effective because merely evaluating the geographic area may not provide vital information about the hazardous material itself and its associated risks. Consulting with the media does not ensure the reliability of information, as media reports can sometimes be inaccurate or incomplete. Conducting a general assessment without specific references lacks the detailed guidance needed for managing hazardous materials effectively, which could lead to inadequate responses and increased risk. Therefore, referring to the ERG is essential for a comprehensive and informed risk assessment.