What is the primary concern when handling radioactive materials?

The primary concern when handling radioactive materials is preventing unnecessary exposure to ionizing radiation. This focus is critical because ionizing radiation has the potential to cause significant harm to biological tissues, increasing the risk of cancer and other health issues. Effective radiation safety protocols aim to minimize exposure to both workers and the surrounding environment, thereby ensuring safety and compliance with health regulations.

This concern encompasses practices such as maintaining appropriate shielding, employing distance from radiation sources, and limiting the time spent near these materials. Additionally, training personnel on these safety measures is essential to foster a culture of safety and awareness when dealing with radioactive substances.

The other considerations such as visibility of materials, speed of handling, and maximizing exposure do not align with the fundamental principles of radiation safety, which prioritize health and safety above all else.