8,700 Studies Reviewed. 87.0% Found Biological Effects. The Evidence is Clear.

Review of Information on Hazards to Personnel from High-Frequency Electromagnetic Radiation

Bioeffects Seen

Herbert Pollack, Janet Healer · 1967

Share:

1967 review established early scientific recognition that electromagnetic radiation below 300 MHz required safety criteria based on biological effects.

Plain English Summary

Summary written for general audiences

This 1967 review examined foreign and domestic research on biological effects of electromagnetic radiation to establish safety criteria. Researchers focused particularly on high-frequency radiation (3-30 MHz) and frequencies below 300 MHz, evaluating existing literature for hazards to human personnel. The study represents early scientific efforts to understand EMF health risks during the Cold War era.

Why This Matters

This 1967 review marks a pivotal moment in EMF research history, when scientists first began systematically examining biological effects of electromagnetic radiation for safety standards. The focus on frequencies below 300 MHz is particularly relevant today, as these ranges overlap with modern AM radio, amateur radio, and various industrial applications that still expose millions daily. What makes this study significant is its timing during the Cold War, when both military and civilian applications of RF technology were rapidly expanding without adequate safety oversight.

The mixed findings reported here reflect a pattern we still see today in EMF research. The science demonstrates that even in 1967, researchers recognized the need for comprehensive safety criteria based on biological effects, not just thermal heating. This early recognition of potential hazards predates decades of industry influence that would later downplay non-thermal effects.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
Herbert Pollack, Janet Healer (1967). Review of Information on Hazards to Personnel from High-Frequency Electromagnetic Radiation.
Show BibTeX
@article{review_of_information_on_hazards_to_personnel_from_high_frequency_electromagneti_g7323,
  author = {Herbert Pollack and Janet Healer},
  title = {Review of Information on Hazards to Personnel from High-Frequency Electromagnetic Radiation},
  year = {1967},
  
  
}

Quick Questions About This Study

The review emphasized high-frequency radiation from 3-30 MHz, which includes modern AM radio and amateur radio bands. Researchers examined both foreign and domestic literature on biological effects across the entire spectrum below 300 MHz for establishing personnel safety criteria.
During the Cold War era, military and civilian RF applications were rapidly expanding without adequate safety oversight. Scientists recognized the urgent need to establish safety criteria based on biological effects rather than relying solely on thermal heating thresholds.
This represents one of the first systematic examinations of electromagnetic radiation biological effects for safety standards. It predates decades of industry influence and established early scientific recognition that EMF exposure required safety criteria based on biological impacts.
Yes, the review reported mixed findings regarding biological effects of electromagnetic radiation. This pattern of inconsistent results has continued in EMF research for decades, reflecting the complexity of biological responses to different frequencies and exposure conditions.
The frequencies studied (3-30 MHz) overlap with modern AM radio, amateur radio, and industrial applications that still expose millions daily. However, today's exposure levels and variety of sources are exponentially higher than in 1967.