No, radio waves are not ionizing. (Unlike, for example, ultraviolet or X-ray.) Ionizing radiation can cause cumulative damage, because each photon quanta has enough energy to potentially change organic molecules. But low frequencies such as radio waves, (anything lower than visible light) can't change your molecules. The most they can do is heat you up, just like visible or infrared light. So unless the radio transmitter is high powered, (such as a microwave) the radio waves won't do any more than the lightbulb in your room. I'm assuming you don't live in a dark cave.