What action should be taken immediately upon recognizing a chemical mass casualty incident?

In the context of a chemical mass casualty incident, the immediate action of starting decontamination procedures is crucial to minimize exposure and mitigate potential harm to victims and responders. When hazardous chemicals are involved, individuals affected may require urgent decontamination to remove contaminants from their bodies and clothing.

Initiating decontamination promptly helps to prevent the spread of harmful substances and reduces the risk of secondary exposure. The responders must be prepared to manage the logistical and safety aspects of decontamination, ensuring that proper protocols are followed to protect both victims and first responders.

While it is essential to assess the scene for further dangers, alert law enforcement, and potentially evacuate personnel when necessary, these actions typically follow the immediate need to decontaminate those affected by hazardous substances. By prioritizing decontamination, the safety and health of all involved can be better safeguarded during the critical initial response phase.