Silba Cunningham-Dunlop, Bruce H. Kleinstein · 1977
This 1977 NIOSH technical report examined the carcinogenic properties of both ionizing and non-ionizing radiation, with this first volume focusing specifically on optical radiation (visible light, infrared, and ultraviolet). The research aimed to assess cancer risks from various forms of electromagnetic radiation across the spectrum. This represents early government recognition that radiation health effects extend beyond just nuclear sources.
Unknown authors · 1977
This 1977 Soviet report compiled translated research on nonionizing electromagnetic radiation effects across multiple biological and medical fields. The document covered aerospace medicine, environmental health, toxicology, and behavioral sciences, representing early international recognition of EMF as a health concern. This compilation demonstrates that concerns about electromagnetic radiation effects on human health were being studied seriously decades before widespread consumer wireless technology.
H. Jammet et al. · 1977
This 1977 technical report provided comprehensive overviews of nonionizing radiation types including microwave, radiofrequency, ultraviolet, ultrasound, and laser radiation. The report examined protection standards and safety considerations for these various forms of electromagnetic and acoustic energy. This early work helped establish foundational understanding of nonionizing radiation effects and safety protocols.
Richard A. Tell, Patrick J. O'Brien · 1977
This 1977 EPA technical investigation measured broadcast radiation intensities at Mount Wilson, California, a major transmission site hosting numerous radio and television stations. The study documented RF exposure levels from multiple broadcast antennas operating simultaneously at this critical communications hub. This research provided baseline data for understanding cumulative broadcast radiation exposure in areas with concentrated transmission facilities.
M. D. Grossi, G. Colombo · 1977
NASA studied a proposed space-based solar power system that would beam 10 gigawatts of microwave energy to Earth at 2.3 GHz. By retuning to 22.2 GHz (water absorption frequency), the system could deliver power densities of 100-1000 watts per square meter to Earth's surface. The study explored how this intense microwave beam could modify weather patterns by heating atmospheric water vapor.
Silba Cunningham-Dunlop, Bruce H. Kleinstein · 1977
This 1977 NIOSH technical report examined the cancer-causing potential of optical radiation, which includes visible light, infrared, and ultraviolet radiation. The study was part of a broader government evaluation of both ionizing and non-ionizing radiation sources for their carcinogenic properties. This represents early federal recognition that non-ionizing radiation could pose health risks beyond just ionizing radiation like X-rays.
Michaelson SM · 1977
This 1977 technical report by SM Michaelson examined microwave and radiofrequency radiation effects on humans and animals, focusing on occupational exposure risks and workplace safety practices. The research addressed both biological impacts and engineering controls needed to protect workers from RF radiation exposure. This represents early systematic evaluation of microwave health effects in occupational settings.
C. H. Dodge, Z. R. Glaser · 1977
This 1977 review examined international research on microwave and radiofrequency radiation effects, comparing Western and Soviet findings. While Western studies focused mainly on heating effects, Soviet research documented nervous system impacts at much lower power levels. The review highlighted a 1,000-fold difference in safety standards between countries.
Howard I. Bassen, William A. Herman · 1977
This 1977 technical study developed precise methods for measuring microwave power density in laboratory settings using specialized antennas and chambers. Researchers achieved measurement accuracy within 0.56 dB at 2450 MHz and 0.76 dB at 915 MHz frequencies. The work established calibration standards for equipment used to measure microwave exposure levels.
S.C. Kashyap, F.R. Hunt · 1977
Researchers in 1977 built a sophisticated laboratory system to precisely measure how much radiofrequency energy the human body absorbs when exposed to 10-26 MHz electromagnetic radiation. The system could simulate both free-space and grounded conditions with exceptional precision of ± 0.05% in power absorption measurements. This early work established important methods for quantifying human EMF exposure that remain relevant today.
Toler J, Seals J · 1977
This 1977 government report documented the development of measurement systems to study how radiofrequency (RF) radiation interacts with human and animal tissue at the cellular level. The research focused on establishing standardized methods for measuring dielectric properties - essentially how biological tissues absorb and respond to RF energy. This foundational work helped establish early protocols for understanding RF bioeffects and workplace safety standards.
Unknown authors · 1977
This 1977 technical report documented the development of a specialized device called the Mini-Surveyor for monitoring electromagnetic leakage from microwave sources, particularly at 2450 MHz frequency. The device featured a 30 decibel dynamic range, allowing it to detect and measure varying levels of microwave radiation emissions. This represents early recognition of the need to monitor and quantify microwave leakage in environments where such equipment was being used.
Eggert, S., Goltz, S., Kupfer, J. · 1977
This 1977 East German technical report documented the development of a specialized meter designed to measure the electrical component of radiofrequency electromagnetic fields in near-field conditions. The research focused on creating measurement tools for RF field assessment, representing early technical work in electromagnetic field monitoring capabilities during the Cold War era.
Unknown authors · 1977
This 1977 Bureau of Radiological Health symposium brought together researchers to discuss the biological effects of microwave radiation, covering impacts on behavior, nervous system function, eye health, and occupational exposure. The conference examined measurement techniques and health effects across multiple biological systems. This represents early federal recognition that microwave radiation could affect human health beyond just heating tissue.
O. BALZANO, O. GARAY, R.F. STEEL · 1977
This 1977 study measured how 6-watt portable radio transmitters heat simulated body tissue at different distances. Researchers found that VHF frequencies primarily heated surface fat layers, while UHF frequencies penetrated deeper into muscle tissue, with heating effects becoming negligible beyond 2 inches from the device.
Maj R. B. Graham, Capt John M. Hemphill · 1977
This 1977 technical report outlined standardized procedures and equipment requirements for measuring radio frequency electromagnetic radiation in workplace environments to assess personnel safety hazards. The document provided guidance for conducting systematic RF surveys around transmitting equipment and establishing measurement protocols for occupational exposure assessment.
Silba Cunningham-Dunlop, Bruce H. Kleinstein · 1977
NIOSH conducted a comprehensive technical review in 1977 examining the carcinogenic properties of microwave and radiofrequency radiation. This government report evaluated the cancer-causing potential of non-ionizing radiation sources including microwaves and radio frequencies. The analysis represents an early federal assessment of RF radiation's health risks during the dawn of wireless technology adoption.
Arthur W. Guy · 1977
This 1977 NIOSH technical report describes the development of a radiofrequency (RF) cell culture irradiation system capable of controlling both temperature and electromagnetic field strength. The research focused on creating standardized laboratory equipment for studying how RF radiation affects living cells in controlled conditions. This represents early foundational work for understanding cellular responses to electromagnetic field exposure.
A. MAMOUNI, F. BLIOT, Y. LEROY, Y. MOSCHETTO · 1977
This 1977 study developed improved methods for measuring temperature and microwave properties of biological tissues using radiometers. Researchers found that traditional temperature measurements can be inaccurate because the microwave signals depend on the material's temperature, electrical properties, and thickness. They created new techniques to measure both temperature and microwave characteristics more accurately in biological materials.
C. H. Dodge, Z. R. Glaser · 1977
This 1977 review examined international research on biological effects from microwave and radiofrequency radiation exposure. The study found emerging evidence supporting Soviet claims that RF fields can affect nervous system function in animals at power levels below what Western standards considered harmful. The review highlighted a massive gap between Soviet exposure limits (0.01 mW/cm²) and U.S. standards (10 mW/cm²).
C. H. Dodget, Z. R. Glaser · 1977
This 1977 review examined international research on microwave and radiofrequency radiation effects, comparing Western and Soviet findings. The study found emerging evidence that electromagnetic fields could affect nervous system function in animals at power levels below those causing heating, supporting some Soviet claims about biological effects at low exposure levels.
Silba Cunningham-Dunlop, Bruce H. Kleinstein · 1977
NIOSH published a comprehensive technical report in 1977 examining the cancer-causing potential of microwave and radiofrequency radiation, part of a larger review of both ionizing and non-ionizing radiation sources. This government assessment represented an early institutional recognition that non-ionizing EMF sources warranted serious investigation for carcinogenic effects.
Douglas A. Hill et al. · 1977
This 1977 study developed a highly precise system to measure how much radiofrequency energy the human body absorbs from 10-26 MHz electromagnetic radiation. Testing three volunteers at 23.25 MHz, researchers found people absorbed only 0-2 watts from 400 watts of incident power, but absorption varied significantly between individuals and body positions.
J. C. Corelli, R. J. Gutmann, S. Kohazi, J. Levy · 1977
Researchers exposed E. coli bacteria to microwave radiation at frequencies between 2.6-4.0 GHz for 10-12 hours at power levels of 20 mW/cm². They found no effects on the bacteria's ability to form colonies or changes in their molecular structure. This suggests these particular microwave frequencies at this power level don't damage this strain of bacteria.
C. H. Dodge, Z. R. Glaser · 1977
This 1977 Navy-funded review examined international research on microwave and radiofrequency radiation effects from 1970-1977. The authors found emerging Western evidence supporting Soviet claims that EMF can affect nervous system function at power levels below what causes heating. The review highlighted a massive gap between US exposure limits (10 mW/cm²) and Soviet limits (0.01 mW/cm²).
