Abstract
Since the early 1940's, industrial use of electronic equipment that emits electromagnetic energy in the microwave region has increased. Concurrent with this growth has been the development of data on the biological effects of this form of radiant energy and the establishment of exposure criteria. Of equal importance in protecting the health of exposed persons is the evaluation, by qualified occupational health personnel, of the electronic equipment as it is used in the workplace by reliable and accepted environmental health techniques. Various, local, state, and federal health programs and survey techniques and instrumentation are reviewed. Standardization of survey techniques is suggested, and recommendations are presented regarding future activities in establishments where persons may be potentially exposed to microwaves from ovens and other commercial and industrial sources of energy.