What does a green-highlighted ERG entry indicate?

• A. The substance is non-toxic and safe
• B. The substance is a toxic inhalation hazard (TIH)
• C. The substance requires standard safety precautions
• D. The substance is radioactively hazardous

Answer: (B)

A green-highlighted entry in the Emergency Response Guidebook (ERG) specifically indicates that the substance is classified as a toxic inhalation hazard (TIH). This classification is critical for responders to understand, as it signifies that exposure to the chemical through inhalation can pose significant health risks, including acute toxicity.

Responders must take specific precautions when handling or responding to incidents involving TIHs, including using appropriate personal protective equipment (PPE) and implementing emergency response measures designed to limit exposure. Recognizing these hazards promptly is essential for ensuring the safety of both emergency personnel and the public.

In contrast, the other classifications indicated by different highlights in the ERG, such as non-toxic substances or standard safety precautions, do not carry the same level of risk associated with inhalation exposure, making it vital for responders to swiftly identify the green-highlighted entries in their response efforts. Understanding the implications of such markings allows for informed decision-making in hazardous situations involving TIHs.