What is the first step in responding to a pesticide spill during aerial application?

The correct choice focuses on initiating emergency cleanup protocols as the first step in responding to a pesticide spill. This response is critical because it prioritizes the containment and mitigation of the hazards posed by the spilled pesticide. Responding swiftly helps minimize the environmental impact and reduces potential harm to people, wildlife, and nearby property.

Emergency cleanup protocols typically involve assessing the situation for safety, securing the area to limit exposure to the spill, and beginning the process of cleaning up the spilled material according to established procedures. This methodical approach ensures that responders can act effectively and safely.

In contrast, documenting the incident would usually follow the initial response. Notifying the public might be necessary in some situations, but that typically comes after immediate containment efforts. Continuing the application as planned would be inappropriate and dangerous, as the spilled pesticides could pose significant risks during ongoing operations. Therefore, the primary focus must be on immediate safety and cleanup to manage the incident effectively.