What is the first action required when a spill of petroleum or hazardous substances results in a release into the environment?

The first action that should be taken when a spill of petroleum or hazardous substances results in a release into the environment is to notify local authorities. This is crucial because local emergency responders need to be aware of the situation to ensure public safety and coordinate an effective response. Promptly informing authorities allows for the mobilization of appropriate resources, expertise, and equipment needed to manage the spill effectively and mitigate any potential risks to the environment and public health.

While other actions such as containment and cleanup are also important, they should be carried out with guidance from local authorities, who can provide direction based on the specific circumstances of the spill. Immediate notification ensures that appropriate protocols are followed, and safety is prioritized during the response to a hazardous situation.