Food and Drug Administration et al. · 1979
In 1979, the FDA and OSHA held a public workshop to address potential health hazards from radiofrequency (RF) sealers, heaters, and gluers used in industrial settings. The workshop focused on frequencies between 3-100 MHz and discussed measurement techniques, biological effects, and control strategies for worker protection.
Division of Biological Effects Staff · 1979
The U.S. Bureau of Radiological Health's Division of Biological Effects issued their annual report for fiscal year 1979, documenting research activities on how electromagnetic radiation affects living organisms. This government document represents official federal research priorities and findings during a critical period when awareness of EMF biological effects was emerging. The report provides insight into what health agencies knew about radiation risks nearly 45 years ago.
Unknown authors · 1979
This 1979 technical report from Rohn Products examined microwave antenna and communications tower systems, focusing on rigid-tube tower designs for microwave transmission equipment. The document likely provided engineering specifications and technical guidance for installing microwave communication infrastructure during the early expansion of wireless networks.
Unknown authors · 1979
This 1979 National Association of Broadcasters conference program addressed radiation hazards in broadcasting, focusing on engineering approaches to RF safety concerns. The conference brought together industry professionals to discuss technical standards and safety practices for radio frequency emissions from broadcasting equipment. This represents early industry acknowledgment of potential RF radiation risks requiring engineering solutions.
Dr. Zory R. Glaser, Moderator · 1979
In 1979, government agencies held a joint workshop examining radiofrequency sealers, heaters, and gluers used in industrial settings. This workshop addressed occupational safety concerns about RF radiation exposure from these powerful commercial devices. The meeting brought together regulators and industry representatives to discuss worker protection standards.
Unknown authors · 1979
In 1979, the Federal Register documented a government workshop examining health hazards from radiofrequency sealers, heaters, and gluers used in industrial settings. The workshop addressed occupational safety concerns about RF radiation exposure from these high-powered industrial devices. This early recognition of RF health risks preceded widespread public concern about electromagnetic fields by decades.
Unknown authors · 1979
In 1979, federal agencies held a workshop to examine radiofrequency hazards from industrial sealers, heaters, and gluers used in manufacturing. These devices emit powerful RF radiation to heat and bond materials, creating potential occupational health risks. The workshop addressed safety concerns for workers exposed to these high-power radiofrequency sources in industrial settings.
Clinton Cox, Bill Murray, Betsy Egan, Bob Herrick · 1979
NIOSH surveyed a plastic manufacturing plant in 1978 to measure radiofrequency radiation from industrial heat sealers and identify workers for potential health studies. All three heat sealers produced electric field strengths exceeding 1000 V/M, levels significantly higher than typical consumer electronics. The study aimed to establish whether these occupational RF exposures cause health effects in workers.
Tom S. Tenforde · 1979
This 1979 technical report by Tenforde examined methods for measuring and controlling DC (direct current) magnetic field exposures in laboratory studies. The research focused on developing proper instrumentation, dosimetry techniques, and exposure chambers needed to conduct reliable scientific studies of static magnetic fields. This foundational work helped establish standardized approaches for EMF research that continues today.
Unknown authors · 1979
This 1979 IEEE symposium brought together radio science and bioelectromagnetics researchers to examine electromagnetic wave phenomena and their biological effects. The conference covered electromagnetic field measurement techniques, wave propagation in ionized media, and interference environments. This represents early formal scientific collaboration between engineers and biologists studying electromagnetic health effects.
Guy, Arthur W., Wallace, Jack, McDougall, John A. · 1979
This 1979 study by Guy and colleagues developed a specialized waveguide system for exposing mice to 918 MHz and 2450 MHz microwave radiation in controlled laboratory conditions. The researchers designed equipment that could precisely deliver circularly polarized electromagnetic fields to groups of four mice at a time, with different positioning strategies for optimal exposure at each frequency. This work established technical methods for studying how microwave radiation affects biological systems like blood-brain barrier function and whole-body heating effects.
Multiple contributors including Professor C. C. Davis et al. · 1979
This 1979 workshop brought together leading scientists to examine how microwave radiation affects biological systems at the cellular level. Researchers explored both thermal (heating) and non-thermal mechanisms, including effects on DNA, cell membranes, and molecular interactions. The gathering established early scientific foundations for understanding microwave bioeffects that remain relevant to today's wireless technology safety discussions.
James C. Lin, John C. Nelson, Merlin E. Ekstrom · 1979
Researchers exposed baby mice to 148 MHz radio frequency radiation (similar to older wireless devices) for one hour daily over 10 weeks, then monitored them for nearly two years. They found no differences in growth, blood chemistry, or tissue damage between exposed and control groups at the tested power level of 0.5 mW/cm².
T. S. Laszlo et al. · 1979
This 1979 conference paper examined the industrial, scientific, and medical applications of microwave technology, exploring how microwaves are used across different sectors. The research reviewed microwave heating applications and considered biological effects associated with these uses. This work represents early recognition that microwave technology's expanding applications required understanding of potential health implications.
McAfee, R.D., Longacre, A. Jr., Bishop, R.R. et al. · 1979
This 1979 study examined whether repeated exposure to 9.3 GHz microwave radiation causes eye damage in monkeys. The research found no ocular pathology (eye damage) after repeated exposures, suggesting this specific frequency and exposure pattern did not harm primate eyes. This research contributed to understanding microwave safety limits for human exposure.
Unknown authors · 1979
In 1979, federal agencies announced an open workshop to address potential health hazards from radiofrequency sealers, heaters, and gluers used in industrial settings. The Bureau of Radiological Health and OSHA sought to identify workplace RF exposure risks and develop control techniques for these high-power devices.
Medical Instrument Research Associates, Inc. · 1979
This 1979 technical document from MIRA Inc. presents a price list for ophthalmic diathermy systems used in eye surgery. These medical devices use radiofrequency energy to cut tissue and control bleeding during delicate intraocular procedures. While focused on commercial pricing rather than safety research, it represents early documentation of RF medical equipment that exposed both patients and medical staff to electromagnetic fields.
Dr. S. S. Stuchly · 1979
This 1979 research by Dr. S.S. Stuchly examined microwave power applications and their biological effects, covering both medical and industrial uses. The study explored how microwave radiation interacts with biological systems through heating mechanisms and dielectric properties. This early work helped establish foundational understanding of microwave bioeffects that remains relevant to modern EMF safety discussions.
James B. Brinton · 1979
This 1979 study by James Brinton explored using radiofrequency (RF) energy as a hyperthermia treatment for cancer in cattle. The research investigated how microwave heating could be applied therapeutically to treat bovine cancers. This represents early work in RF-based medical treatments that would later inform human cancer therapies.
Unknown authors · 1979
This 1979 technical report proposed threshold limit values (TLV) for radiofrequency radiation exposure in occupational settings. The document addressed workplace safety standards for microwave and RF electromagnetic energy, establishing guidelines for how much exposure workers could safely receive. This represents early efforts to regulate RF radiation before widespread consumer electronics adoption.
René Males · 1979
This 1979 technical report examined multiple biological effects of electromagnetic fields from high-voltage power lines, including impacts on cardiac pacemakers, honeybees, plants, and atmospheric particles. The research represented early comprehensive investigation into how power line EMFs affect various living systems and electronic devices. This work helped establish the foundation for understanding EMF biological interactions across different organisms.
Susanta Sen, P. K. Saha, B. R. Nag · 1979
Researchers developed a new method for measuring how materials interact with microwave radiation using a modified cylindrical cavity. The technique simplifies measurements by eliminating the need for sample size calculations and system calibration. While limited to materials with low dielectric properties, it offers improved accuracy for microwave testing applications.
David E. Janes, Jr. · 1979
The EPA conducted the first comprehensive survey of radiofrequency radiation levels across 15 major U.S. cities from 1975-1979, measuring emissions from 0.5-900 MHz in everyday environments. The study documented baseline RF exposure levels from broadcast antennas, radars, medical equipment, and industrial sources to establish whether environmental guidelines were needed. This landmark research provided the foundation for understanding how much RF radiation Americans were encountering in their daily lives.
H.P. Schwan · 1979
This 1978 keynote address by Herman Schwan reviewed the history of microwave bioeffects research dating back to the 1930s. Schwan, a pioneering researcher in the field, argued that scientifically rational approaches were more productive than purely experimental ones and concluded that enough evidence existed to formulate safety exposure standards.
H. J. WASSERMAN, W. LEVIN · 1979
Researchers tested shortwave diathermy electrodes implanted in a tissue phantom to create uniform heating patterns. They found that specific electrode configurations could produce controlled, localized heating suitable for cancer treatment. This 1979 study helped establish techniques for using radiofrequency energy in medical hyperthermia therapy.