What safety measure should be taken when handling highly toxic pesticides?

When handling highly toxic pesticides, it is crucial to work in pairs as a safety measure. This practice ensures that there is always someone available to assist in case of an emergency or accident. Working with a partner allows for immediate response to potential exposure or spills, which can be critical in preventing serious health consequences. In addition, having another person present can provide support and facilitate communication, ensuring that safety protocols are followed and that help can be summoned swiftly if needed.

The other options do not prioritize safety effectively. Working alone may enhance efficiency, but it significantly increases risk during hazardous tasks. Limiting contact with others without a safety partner may lead to insufficient monitoring of safety practices, and simply informing a supervisor does not ensure real-time assistance in a dangerous situation. Thus, working in pairs is a proactive and essential measure for safety in the handling of highly toxic pesticides.