In the context of toxicology, UVB rays are considered a form of radiation toxicity. They can cause direct damage to DNA, leading to mutations and cellular damage, which are precursors to cancer development. The toxicological impact of UVB is dose-dependent, meaning the extent of harm is related to the intensity and duration of exposure. Protective measures, including the use of sunscreen and protective clothing, are crucial in minimizing exposure and reducing toxic effects.