What is the primary objective of mass decontamination during a chemical incident?

• A. Decontaminate large numbers of people
• B. Protect equipment first
• C. Isolate responders
• D. Evacuate civilians to a safe distance

Answer: (A)

The main objective of mass decontamination during a chemical incident is to rapidly reduce exposure by removing contaminants from a large group of people. By stripping away contaminated clothing and washing exposed skin, the body’s absorption of harmful chemicals is minimized, and the chance of spreading contaminants to others or to the environment is greatly reduced. The emphasis here is speed and scale, so decon methods are chosen for their ability to quickly decontaminate many individuals at once, not for protecting equipment or isolating responders. Evacuating civilians may be part of the overall response, but the priority during mass decon is to get contaminants off people as fast as possible to prevent further harm.