Which of the following actions is crucial immediately after a chemical spill?

Contacting emergency services to assess the situation is critical immediately after a chemical spill because trained professionals can evaluate the risks posed by the chemical, the extent of the spill, and the appropriate response needed to mitigate any danger. Emergency services have the expertise and resources to handle hazardous materials safely, minimizing the risk to individuals at the scene and the environment.

Promptly engaging emergency responders not only protects public safety but also ensures that appropriate containment and cleanup measures are implemented quickly. This action aligns with best practices in emergency management, where immediate assessment and intervention by qualified personnel are essential to prevent further harm or escalation of the situation.

Other options, such as ignoring the spill or waiting for it to evaporate, fail to address the immediate dangers associated with hazardous materials and could lead to an unsafe environment for everyone involved. Informing coworkers, while important, is not sufficient on its own without involving emergency services for a proper and coordinated response.