Final answer:
Individuals are regularly exposed to ionizing radiation through medical devices like X-ray machines. Other listed sources such as microwave ovens, LED light bulbs, and wind turbines do not emit ionizing radiation. X-rays in medical use, while having potential risks, are controlled to minimize exposure.
Step-by-step explanation:
Sources of ionizing radiation that individuals are regularly exposed to, other than nuclear power, include medical devices like X-ray machines. Microwave ovens, LED light bulbs, and wind turbines do not emit ionizing radiation. Ionizing radiation has enough energy to remove tightly bound electrons from atoms, thus creating ions. This can lead to cellular damage which may result in cancer. For instance, radon gas from natural sources and prolonged exposure to ultraviolet radiation from the sun can lead to skin malignancies, including melanoma. While both medical imaging and natural emissions can lead to exposure, they differ significantly in terms of their application and the levels of radiation. X-rays are carefully used in medicine to minimize risk and provide critical diagnostic information, despite the potential for cell damage at high exposures.