Which of the following is a common source of skin exposure to pesticides?

Mixing and application procedures are indeed common sources of skin exposure to pesticides. During these processes, handlers often come into direct contact with the chemicals, which can happen through spills, splashes, or even just handling equipment that has pesticide residue on it. This exposure can occur even when safety measures are in place, highlighting the importance of using appropriate protective gear and following safety protocols diligently.

In contrast, accidental ingestion generally relates to ingestion rather than skin exposure. Wearing protective equipment is designed to minimize skin contact, thus reducing the risk of exposure. Emergency situations, while potentially involving exposure, are not a routine source and do not reflect the day-to-day interactions that occur during mixing and application, making these less common compared to procedures that are regularly practiced in pest control.