Which option best describes how ammonia detectors integrated with ventilation should respond to a detected release?

• A. To vent but not evacuate.
• B. To delay action until a manual confirmation.
• C. To only log the event for records.
• D. To trigger ventilation and alarm systems to evacuate and dilute the gas.

Answer: (D)

When a hazardous ammonia release is detected, the fastest protection for people is to automatically both dilute the gas and warn occupants. Integrating detectors with ventilation means the system immediately increases exhaust and dilution of the air and simultaneously triggers alarms so everyone knows to evacuate. This dual action lowers the concentration quickly and provides clear notice to move to safety, which is essential because exposure can rise rapidly and manual steps take time. Logging the event or waiting for manual confirmation don’t protect people in real time, and venting alone without alarms or evacuation leaves occupants unaware. So the best approach is automatic activation of ventilation and alarms to evacuate and dilute the gas.