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Extremely Low Frequency Electromagnetic Radiation Biological Research

Bioeffects Seen

L. M. Libber · 1970

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Military research in 1970 already recognized the need to study ELF radiation's biological effects before mass deployment.

Plain English Summary

Summary written for general audiences

This 1970 research paper reviewed biological effects of extremely low frequency (ELF) electromagnetic radiation, particularly in relation to Project SANGUINE, the U.S. Navy's proposed submarine communication system. The study examined what was known about ELF radiation's impact on living organisms during early development of this massive military communication network.

Why This Matters

This research represents a pivotal moment in EMF science history. In 1970, the U.S. Navy was developing Project SANGUINE, which would have created the world's largest antenna system spanning thousands of square miles to communicate with submarines using ELF frequencies. The military needed to understand potential biological impacts before deployment. This timing is significant because it shows government awareness of EMF health concerns decades before widespread public discussion. The frequencies studied here (ELF range, typically 3-30 Hz) are similar to those emitted by power lines and electrical systems in every home today. What makes this particularly relevant is that military research often leads civilian applications by years or decades, meaning the biological effects identified in projects like this foreshadowed concerns we now face with everyday electrical infrastructure.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 0-10 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 0-10 HzPower lines50/60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Study Details

To determine the feasibility of ELF communication, characterize natural parameters, and study side effects of ELF transmissions; to assess environmental compatibility of ELF communications systems through biological research

A pilot research program was initiated by the Department of the Navy in early 1969 to determine prob...

Preliminary investigations on small population samples suggest some possible biological effects at e...

Although all evidence to date indicates that biological reactions at the very low ELF field intensities associated with SANGUINE are unlikely, further research should be conducted. A research matrix was developed to indicate areas in which additional research is desirable to determine environmental compatibility. Good scientific investigations in the problem areas should yield information upon which sound guidelines to ensure environmental compatibility could be based.

Cite This Study
L. M. Libber (1970). Extremely Low Frequency Electromagnetic Radiation Biological Research.
Show BibTeX
@article{extremely_low_frequency_electromagnetic_radiation_biological_research_g6485,
  author = {L. M. Libber},
  title = {Extremely Low Frequency Electromagnetic Radiation Biological Research},
  year = {1970},
  
  
}
No DOI on file for this study.

Quick Questions About This Study

Project SANGUINE was a proposed U.S. Navy submarine communication system using extremely low frequency radiation that would have required a massive antenna network spanning thousands of square miles across multiple states.
The military needed to assess potential health impacts before deploying Project SANGUINE's massive ELF transmission system, demonstrating early government awareness of electromagnetic radiation's biological effects.
ELF frequencies studied for Project SANGUINE (3-30 Hz) are very similar to the 50-60 Hz frequencies used in electrical power systems that surround us in homes and workplaces today.
This research shows the U.S. government was studying EMF biological effects decades before public awareness, indicating early recognition of potential health concerns from electromagnetic radiation exposure.
Project SANGUINE was eventually scaled down and renamed due to environmental and health concerns, though smaller ELF communication systems were later deployed for military submarine communications.