Which statement best describes TIH release detection?

Which statement best describes TIH release detection?

• A. TIH releases can be odorless or have any odor; rely on detection equipment and ERG guidance rather than odor alone.
• B. TIH releases always have a strong acrid odor.
• C. TIH releases cannot be detected by equipment.
• D. Odor alone is sufficient to determine the appropriate response.

Answer: (C)

TIH release detection relies on objective measurements rather than smell alone. Some toxic inhalation hazards are odorless, and others may have odors that are not reliable indicators of danger or concentration. Odor by itself can miss a release or give a false sense of safety, so you must not depend on it as the sole detector. Detection equipment—such as gas monitors and other sensors—provides real-time concentration data, and the ERG guidance helps translate that information into appropriate protective actions. So the best description is that TIH releases can be odorless or have any odor, and you should rely on detection equipment and ERG guidance rather than odor alone.