What is considered the most hazardous pesticide-handling activity?

Hand-pouring pesticides is considered the most hazardous pesticide-handling activity because it often involves direct contact with the pesticide formulations. This can lead to a higher likelihood of accidental spills, drips, or splashes, which can pose a significant risk to the person handling the pesticide as well as to the environment. Unlike other activities, such as mixing or transporting pesticides, hand-pouring can frequently lead to more immediate exposure to chemicals, especially if proper personal protective equipment (PPE) is not used. Additionally, this activity can result in exposure to harmful residues if containers are not handled properly or if spills are not managed effectively. The risks associated with direct contact and the potential for exposure during application highlight why this activity is viewed as particularly dangerous in pesticide handling.