In the context of radiation, what does "overexposure" mean?

Overexposure in the context of radiation refers to exposure above allowed safety limits. It indicates that the level of radiation exposure exceeds the established thresholds that are considered safe for human health. These thresholds are typically determined by regulatory agencies based on scientific research about the effects of radiation on biological systems.

When individuals are overexposed, they may experience harmful effects, such as radiation sickness or increased risk of cancer, depending on the duration and intensity of the exposure. Understanding and adhering to safety limits is crucial to minimize health risks when working in environments where radiation is present.

In contrast, the other options describe situations that do not align with the definition of overexposure. Exposure at safe levels is within acceptable limits and poses minimal risk, exposure during a controlled experiment usually implies precautions are taken to manage exposure, and exposure without proper safety gear signifies a lack of protection but does not inherently describe whether the exposure levels are above safety limits.