A. W. J. DAWKINS et al. · 1979
This 1979 study examined how water molecules bound to biological structures absorb microwave energy differently than free water. Researchers found that bound water absorbs up to five times more microwave energy than free water, particularly around 1 GHz frequencies. This discovery helps explain why microwaves can have biological effects at the molecular level.
Jean Cabanes · 1979
This 1979 World Health Organization review examined studies on the health effects of electrical and magnetic fields from power lines on humans. The WHO found no statistically significant health effects and concluded that high-voltage power lines up to 400-800 kV do not pose a danger to human health. Any symptoms reported in some subjects fell within normal physiological ranges or were attributed to non-specific stimulation.
Sally Z. Child, Edwin L. Carstensen, Shung K. Lam · 1979
Scientists exposed fruit fly larvae to pulsed 2 MHz ultrasound to study biological effects. They found that high-intensity pulses killed larvae and caused delayed death during the pupal stage, with effects beginning at intensities above 10 W/cm². The research revealed that peak intensity matters more than average intensity for predicting biological harm.
KENNETH R. FOSTER et al. · 1979
Researchers measured how dog brain tissue responds to microwave frequencies from 0.01 to 10 GHz, finding that grey and white matter have different electrical properties that change predictably with frequency. The study revealed that brain tissue contains about 70% water in grey matter and 35% in white matter, with some water not contributing to electrical responses above 1 GHz.
Lawrence E. Larsen, John H. Jacobi · 1979
Researchers developed a microwave imaging system using 3.9 GHz radiation to create detailed pictures of a dog kidney's internal structure. The technology successfully distinguished between different kidney regions including the cortex, medulla, and collecting system. This early study explored using microwave radiation as a medical imaging tool.
Donald L. Lambdin · 1979
This 1978 EPA study by Donald Lambdin measured radiofrequency energy densities around vehicles equipped with mobile communications equipment and handheld walkie talkies. The research documented RF exposure levels from early mobile radio systems, providing baseline data for understanding electromagnetic field intensities near communication devices in vehicles and from portable radios.
Sol M. Michaelson · 1979
This 1979 research examined radiation hazards across the electromagnetic spectrum in workplace settings, focusing on occupational health risks from microwave, laser, and optical radiation sources. The study addressed the growing need to understand and protect workers from various forms of electromagnetic radiation exposure in industrial and technical environments.
Paul S. Ruggera · 1979
This 1979 government study measured electromagnetic field levels near CB (Citizens Band) radio antennas to understand exposure patterns in close proximity to these transmitters. The research examined RF field strength at various distances from CB antennas, which was important for establishing safety guidelines during the CB radio boom of the 1970s.
Robert Mosenkis · 1979
This 1979 evaluation examined diathermy units, which use high-frequency electromagnetic energy to generate heat in body tissues for medical treatment. The analysis found that therapeutic diathermy's effectiveness has been widely debated, with treatment doses poorly controlled and claims often exaggerated or unsupported by reliable clinical data.
Unknown authors · 1979
This 1979 issue of the Journal of Microwave Power examined biological effects of microwave electromagnetic fields and their applications. The research represents early scientific investigation into how microwave radiation interacts with living systems. This work helped establish the foundation for understanding microwave EMF health effects that remain relevant today.
Kenji TAZAWA et al. · 1979
Japanese researchers tested radiofrequency therapy at 13.56 MHz on experimental tumors in rats, finding that targeted heating to 40-46°C caused tumor regression in some cases. The RF energy raised tumor temperatures 5-10°C above surrounding tissue, with complete tumor regression achieved in 7 of 23 rats during longer treatments.
M.J. Galvin, M. Lieberman and D.L. McKee · 1979
Researchers exposed Japanese quail embryos to 2.45 GHz microwave radiation (the same frequency as microwave ovens and WiFi) during their first 8 days of development. While lower exposure levels showed no effects, higher exposure (20 mW/cm²) appeared to reduce certain enzyme levels in developing heart tissue, though the embryos survived normally.
R.D. McAfee et al. · 1979
Researchers exposed 12 monkeys to 9.3 GHz microwave radiation at 150 mW/cm² for 30-40 sessions, then monitored them for one year. No eye damage or cataracts developed despite direct facial exposure. This study examined whether high-frequency microwaves cause immediate eye injury at power levels far exceeding typical consumer devices.
J. W. Adams, H. E. Taggart, M. Kanda, J. Shafer · 1979
This 1979 technical study measured electromagnetic field levels inside three different-sized vehicles when exposed to CB radios, mobile radio transmitters, and broadcast stations. Researchers found that vehicles act like metal boxes that can concentrate and amplify electromagnetic fields from nearby transmitters, creating potentially intense exposure conditions for occupants and electronic systems.
James P. Dilger et al. · 1979
Researchers exposed rats to 2450 MHz microwave radiation (the same frequency used in microwave ovens) and found the animals changed their heat-seeking behavior even when their core body temperature didn't change. The rats pressed a lever less frequently to turn on a warming lamp when exposed to microwaves, suggesting they were detecting internal heating that standard temperature measurements couldn't detect.
Henry S. Ho, William P. Edwards, Howard Bassen · 1979
Researchers measured electromagnetic fields inside realistic human head models (using actual skulls) when exposed to radiation leaking from microwave ovens operating at 2450 MHz and 915 MHz. They found that microwave oven leakage creates measurable internal electric fields in brain tissue, which they converted to radiation dose rates for health assessment purposes.
Richard M. Stern · 1979
This 1979 Danish technical report by Stern examined cancer risks, representing early research into environmental cancer factors. While specific EMF findings aren't detailed, this work contributed to the foundational understanding of cancer risk assessment methodologies. Such historical research helped establish frameworks for evaluating environmental health threats that continue to inform EMF safety studies today.
Stephen A. Oliva · 1979
This 1979 military review examined electromagnetic radiation hazards from military communications and radar systems across frequencies from 30 Hz to 300 GHz. The study found gaps in protective measures across military services and recommended improvements to better protect both military personnel and civilians from EMF exposure.
Unknown authors · 1979
This 1979 EPRI technical report compiled research on biological effects from high-voltage electric fields, focusing on extremely low frequency (ELF) exposures from power lines. As a bibliography and update, it documented the state of scientific knowledge about how electrical fields from power transmission systems might affect living organisms. This type of comprehensive review was crucial for understanding early evidence of potential health effects from electrical infrastructure.
H. Kornberg, L. Sagan, M.D. · 1979
This 1979 EPRI technical report by Kornberg and Sagan reviewed the biological effects of high-voltage electric fields, examining what was known about health impacts from power line exposures at that time. The study represents an early comprehensive assessment of ELF (extremely low frequency) bioeffects research during the initial wave of public concern about power lines and health.
Unknown authors · 1979
This 1979 conference paper examined the biological and health effects of microwave radiation on humans, representing early research into nonionizing radiation impacts. The study contributed to the growing body of evidence about how microwave frequencies affect human biology. This research occurred during a crucial period when scientists first began systematically investigating EMF health effects.
H. Janet Healer · 1979
This 1979 government report by H. Janet Healer documented a comprehensive federal program studying the biological effects of nonionizing radiation, including radiofrequency and microwave sources. The report compiled project summaries from various government research initiatives investigating how RF/MW radiation affects living systems. This represents early official recognition that nonionizing radiation warranted systematic health investigation.
Clinton Cox, Betsy Egan, Ed Foley, Bob Herrick · 1979
In 1978, NIOSH surveyed RF heat sealing equipment at a Connecticut manufacturing plant to assess worker radiation exposure levels. They found 10 of 11 heat sealers produced electric fields exceeding 200 V/M, identifying a potential worker population for future health studies. This was part of NIOSH's effort to establish whether occupational RF exposure causes reproductive health effects.
David E. Janes, Jr. · 1979
This 1979 technical study by Janes examined radiation leakage from electronic equipment and measured the electromagnetic fields people might be exposed to. The research focused on surveying actual emission levels from various radiofrequency sources to understand potential human exposure scenarios. This type of foundational measurement work helped establish early understanding of EMF exposure levels in real-world environments.
Clinton Cox, Ed Foley, Betsy Egan, Bob Herrick · 1979
NIOSH conducted a 1978 workplace survey at a Connecticut company to measure RF radiation from industrial heat sealers and identify workers for potential health studies. They found that 10 of 11 heat sealers produced electric field levels exceeding 200 V/M, well above typical background levels. This survey was part of early efforts to understand occupational RF exposure risks before widespread wireless technology adoption.
