Final answer:
The safe dose level for radiation-induced malignant disease depends on the dose of radiation received. Doses less than 100 mSv are considered safe.
Step-by-step explanation:
The safe dose level for radiation-induced malignant disease depends on the dose of radiation received. Any dose less than 100 mSv (10 rem) is considered a low dose, and is generally considered safe. Doses between 0.1 Sv to 1 Sv (10 to 100 rem) are considered moderate, while doses over 1 Sv (100 rem) are considered high and pose a greater risk of malignant disease.