What should be the first action upon discovering a hazardous materials incident?

The first action upon discovering a hazardous materials incident should always prioritize personal safety and the notification of emergency services. This approach aligns with fundamental safety protocols, ensuring that individuals remain safe from potential exposure to hazardous substances. By first ensuring personal safety, responders can assess the situation from a secure position and avoid putting themselves or others at risk.

Calling emergency services is crucial, as trained professionals can then be dispatched to manage the situation effectively. They possess the equipment, expertise, and authority to handle hazardous materials and ensure proper containment and decontamination procedures are followed. This response is instrumental in coordinating appropriate resources to prevent escalation and mitigate hazards.

Other actions, while they may have their place, should not be undertaken before ensuring personal safety and alerting the relevant authorities. Attempting to contain the hazardous material or evacuating the area without the guidance of professionals could lead to greater risks, such as exposure or increased spread of the hazardous substance. Notifying the media is inappropriate as an immediate action, as it's essential to focus on safety and response before public communication.