6,486 Studies Reviewed. 85.2% of Original Studies Found Biological Effects. The Evidence is Clear.

Survey of Radio Frequency Radiation Hazards

Not an original health-effects study

B. R. Baldwin, P. C. Constant, Jr., R. W. Fetter, B. L. Jones, V. W. Klein, E. J. Martin, Jr., L. Runge, D. L. Waidelich · 1961

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The report recommended 10 mw/cm² average power density for personnel and 5,000 mw/cm² peak power density for aircraft refueling, but found insufficient information for HERO tolerable levels, safety regulations, protective materials, and measuring equipment.

Plain English Summary

Summary written for general audiences

Tolerable levels of 10 mw/cm² average power density for personnel and 5,000 mw/cm² peak power density for aircraft refueling were recommended. Insufficient information was available for HERO tolerable levels, safety regulations, protective materials, and measuring equipment. Pearl chain formation, Hall effect, and gaseous breakdown were found unsuitable for broadband sensors, while radiation pressure, absorption, and Kerr effect showed promise.

Why This Matters

The investigators found that establishing specific standard units was impractical because adopting a single system would conflict with existing conventions. The bio-effects review found no reason to revise the 10 mw/cm² safe limit accepted by the Armed Forces. A program to evaluate commercial RF measuring instruments was started to support future interim standards for measuring equipment.

Exposure Details

Power Density
10 mw/cm2

Exposure Context

This study used 10 mw/cm2 for radio frequency:

Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 10 mw/cm2Extreme Concern - 1,000 µW/m²FCC Limit - 10M µW/m²Effects observed in the Extreme Concern range (Building Biology)This level is 10 times the FCC limit
Cite This Study
B. R. Baldwin, P. C. Constant, Jr., R. W. Fetter, B. L. Jones, V. W. Klein, E. J. Martin, Jr., L. Runge, D. L. Waidelich (1961). Survey of Radio Frequency Radiation Hazards.
Show BibTeX
@article{survey_of_radio_frequency_radiation_hazards_g5352,
  author = {B. R. Baldwin and P. C. Constant and Jr. and R. W. Fetter and B. L. Jones and V. W. Klein and E. J. Martin and Jr. and L. Runge and D. L. Waidelich},
  title = {Survey of Radio Frequency Radiation Hazards},
  year = {1961},
  
  
}
No DOI on file for this study.

Quick Questions About This Study

The report recommended 10 mw/cm² average power density for personnel, with integrated energy density not exceeding 300 millijoules/cm² in any 30-second interval, and 5,000 mw/cm² peak power density for aircraft refueling operations.
General interim standards were recommended including volt/meter for electric field intensity, volt for potential, ampere-turn/meter for magnetic field intensity, ampere for current, millijoule for energy, watt for power, and milliwatt/centimeter² for power density.
Practical considerations made specific standard units unattainable because adopting a single system would conflict with existing conventions.
Pearl chain formation, Hall effect devices, and gaseous breakdown were found unsuitable for broadband sensors of unguided RF electromagnetic waves.
Radiation pressure, radiation absorption, and Kerr effect were identified as promising bases for broadband sensors of unguided RF electromagnetic waves.