Biological effects of radiofrequency radiation: concepts and criteria.

The radiofrequency (RF) portion of the electromagnetic radiation spectrum between 0.5 MHz and 100 GHz is a significant factor in numerous industrial and military as well as consumer and medical applications. Certain organ and organ systems can be affected by RF energy absorption. Biological reactions are a response to thermal energy conversion. To understand the fundamental factors in the response to RF energy absorption, it is necessary to utilize accepted principles of dosimetry, biologic experimentation and interpretations, as well as differentiation between effect and hazard. Analysis of the relevant literature leads one to conclude that there are no unequivocal pathophysiologic changes in humans exposed to levels up to 4 W kg-1.