Which of the following is true regarding the most hazardous activities involving pesticides?

Mixing and loading concentrates are considered the most hazardous activities involving pesticides due to the high risk of exposure during these processes. This is because concentrates are highly concentrated forms of pesticides that can be harmful if handled improperly. When mixing or loading, individuals are often directly exposed to the substances, which may include inhalation of droplets or vapors, skin contact, and accidental ingestion.

Personal protective equipment is crucial during these tasks because it can significantly reduce the risk of harmful exposure. This is in contrast to applying pesticides once they are diluted and ready for use, where the exposure risks are generally lower. Therefore, the procedure of mixing and loading requires more caution and safety measures, confirming that it is indeed the most hazardous activity concerning pesticide handling.