Analysis of the physiologic effects of microwave radiation, Research Report No. 3
McLees BD, Finch ED · 1971
Government scientists recognized microwave radiation health risks requiring workplace protections in 1971, decades before today's constant consumer exposures.
Plain English Summary
This 1971 technical report analyzed the physiological effects of microwave radiation on both humans and animals. The research examined workplace exposures and recommended engineering controls to protect workers from microwave hazards. This early government study recognized microwave radiation as a health concern requiring protective measures.
Why This Matters
This 1971 report represents crucial early recognition by government researchers that microwave radiation poses physiological risks requiring workplace protections. What makes this significant is the timing - this was decades before widespread consumer microwave technology, yet scientists were already documenting biological effects and recommending engineering controls. The reality is that microwave frequencies used in early industrial and military applications are fundamentally the same as those now flooding our homes through WiFi routers, cell phones, and smart devices. The difference is exposure duration and proximity. While 1970s workers faced intermittent occupational exposure with safety protocols, today's families live in continuous microwave fields without any protective measures. The science demonstrates that what concerned government researchers 50 years ago about occasional workplace exposure should concern us even more about the constant residential exposures our children now experience.
Finding
A rectal temperature above 43°C resulted in the death of both rats and mice; the minimum lethal exposure times to achieve this critical temperature are presented in Table 2.
In their words
“A rectal temperature above 43°C resulted in the death of both rats and mice; the minimum lethal exposure times to achieve this critical temperature are presented in Table 2.”
Exposure Information
Specific exposure levels were not quantified in this study. Duration: Single exposure, 10 min; 6-hour exposures; 5.5 minutes; 60 minutes
Study Details
To examine reports on the effects of animal exposure to microwave radiation, considering only studies resulting in temperature elevations and where results might suggest a health hazard.
The study reexamines reports on the effects of animal exposure to microwave radiation. Consideration...
The study presents data on hematologic effects, serologic changes, and effects on the eye. Key findi...
The study avoids interpretations of the data in terms of health hazards but delineates limitations of the data to allow readers to evaluate the extent to which results support conclusions. The authors note that the understanding of 'thermal' effects is simpler than 'nonthermal' effects since the cause, tissue heating, is reasonably well understood.
Show BibTeX
@article{analysis_of_the_physiologic_effects_of_microwave_radiation_research_report_no_3_g6306,
author = {McLees BD and Finch ED},
title = {Analysis of the physiologic effects of microwave radiation, Research Report No. 3},
year = {1971},
}