Which route of pesticide exposure is least concerning for handlers?

The oral route of pesticide exposure is generally considered the least concerning for handlers because it is less common in practice. Most safety protocols are designed to prevent ingestion of pesticides since handlers are trained to use personal protective equipment (PPE) and follow proper handling techniques. Unlike inhalation or dermal exposure, which can occur easily through breathing contaminated air or direct contact with skin, oral ingestion typically requires a more significant lapse in safety practices, such as eating or drinking without washing hands after handling pesticides.

Hence, while all routes of pesticide exposure should be taken seriously, the oral route, in this context, poses a lower risk when proper handling procedures are followed, making it less concerning compared to other routes.