Electric fields are produced by voltage (electrical pressure) and exist whenever a device is plugged in, even if turned off. They are measured in volts per meter (V/m). Electric fields can be blocked by walls and most materials, but often concentrate near ungrounded wiring and electronics.
Based on Building Biology Institute guidelines (V/m (volts per meter)):
Showing 294 studies with measured electric fields exposure
Manta AK, Stravopodis DJ, Papassideri IS, Margaritis LH. · 2014
Researchers exposed fruit flies to cordless phone base station radiation and found cellular damage markers doubled in fly bodies after 6 hours. Female reproductive organs showed even faster responses, with damage markers increasing 2.5 times after just 1 hour of exposure.
Manta AK, Stravopodis DJ, Papassideri IS, Margaritis LH · 2013
Researchers exposed fruit flies to radiation from cordless phone base stations. The flies showed doubled levels of cell-damaging molecules within hours, even at very low radiation levels. This suggests common household wireless devices may cause cellular stress below current safety standards.
Urbinello D et al. · 2014
Researchers measured cell tower radiation levels in four European cities with different safety rules. Despite varying regulations, actual outdoor exposure was extremely low everywhere - between 0.22 and 0.41 volts per meter - suggesting stricter local limits don't necessarily reduce real-world exposure levels.
Styblova V., Holovska V., Spondova V., Zubrik L. · 1973
This 1973 research examined the challenge of evaluating brain wave (EEG) changes in people exposed to ultra-short wave (USW) microwaves. The study addressed the technical difficulties of measuring and interpreting brain electrical activity patterns in relation to different levels of microwave exposure. This represents early scientific recognition that microwave radiation could affect brain function in measurable ways.
Mina D et al. · 2016
Researchers exposed wall lizards to cordless phone radiation 24 hours daily for 8 weeks. The lizards showed 45% weaker immune responses compared to unexposed animals, suggesting that constant wireless radiation exposure may suppress the immune system in living creatures.
Atlı Şekeroğlu Z, Akar A, Sekeroğlu V. · 2013
Researchers exposed young and adult rats to cell phone radiation (900 MHz) for 2 hours daily over 45 days. Both age groups showed significant DNA damage in bone marrow cells, with young rats more severely affected. The genetic damage persisted even after a recovery period.
Franke H et al. · 2005
German researchers tested whether 3G cell phone signals could damage the blood-brain barrier (the protective filter that keeps toxins out of the brain) by exposing pig brain cells to UMTS signals for up to 84 hours. They found no evidence that the radiofrequency radiation affected the barrier's protective function, permeability, or structural proteins. This suggests that 3G signals at typical phone exposure levels may not compromise this critical brain protection system.
Stasinopoulou M et al. · 2016
Researchers exposed pregnant rats to DECT phone base station radiation (the same frequency as cordless phones) for 12 hours daily during pregnancy and early life. They found increased heart rates in developing embryos, altered birth measurements in newborns, and significant brain cell loss in the hippocampus region of 22-day-old pups. These brain changes occurred whether the animals were exposed only before birth or both before and after birth.
Jirillo E et al. · 2014
Researchers exposed white blood cells from 108 healthy people to cell phone-frequency radiation for up to 24 hours. They found 82% of samples showed significant changes in cell size and shape compared to unexposed cells, suggesting RF radiation directly affects immune system cells.
Sırav B, Seyhan N · 2016
Turkish researchers exposed rats to cell phone radiation at 900 MHz and 1800 MHz for 20 minutes. Both frequencies increased blood-brain barrier permeability in male rats, while only 900 MHz affected females. This protective brain barrier normally prevents harmful substances from entering the brain.
Sirav B, Seyhan N · 2011
Researchers exposed rats to cell phone radiation (0.9 GHz) for 20 minutes to test brain protection. The radiation made the blood-brain barrier leaky in male rats only, allowing blood proteins into brain tissue. This suggests phone radiation may compromise brain defenses differently between sexes.
Grémiaux A et al. · 2015
French researchers exposed rose bushes to 900MHz electromagnetic fields (the same frequency used by cell phones) and tracked their growth for over a month. They found that EMF exposure significantly reduced growth by 45% in newly developing shoots, but only when plants were exposed at their earliest development stage. The effect occurred at extremely low power levels, ruling out heating as the cause.
Roux D et al. · 2008
French researchers exposed tomato plants to 900 MHz electromagnetic fields (the same frequency used by cell phones) at low power levels for just 10 minutes. The plants immediately activated stress response genes and began producing proteins typically associated with injury or environmental damage. The study demonstrates that even brief, low-level radiofrequency exposure can trigger biological stress responses in living organisms.
Kerimoğlu G et al. · 2016
Researchers exposed adolescent male rats to cell phone-level radiation (900 MHz) for one hour daily during their development and examined their hearts as adults. The exposed rats showed significant heart damage including increased oxidative stress, structural changes to heart muscle cells, and higher rates of cell death compared to unexposed controls. This suggests that EMF exposure during critical developmental periods may cause lasting cardiovascular damage.
Malka N. Halgamuge, See Kye Yak and Jacob L. Eberhardt · 2015
Scientists exposed soybean seedlings to 900 MHz cell phone radiation at various power levels. Even extremely weak signals similar to cell tower emissions reduced plant growth in specific parts of the seedlings, suggesting wireless radiation may disrupt biological processes in living organisms.
Serdiuk AM · 1969
This 1969 Soviet research examined how low-intensity ultrahigh frequency electromagnetic waves affect biological systems. The study represents early scientific investigation into microwave radiation's biological effects, decades before widespread consumer electronics. This foundational research helped establish that even low-power electromagnetic fields can produce measurable biological responses.
Serdiuk AM · 1969
This 1969 Soviet research examined the biological effects of low-intensity ultrahigh frequency electromagnetic waves on living organisms. The study represents early scientific investigation into how microwave-range EMF affects biological systems. This foundational research helped establish that even low-intensity electromagnetic fields can produce measurable biological responses.
Roux D et al. · 2011
Researchers exposed human skin cells (keratinocytes) to 900 MHz radiofrequency radiation similar to cell phone signals for 10 minutes at very low power levels. They found essentially no biological effects, with only 20 out of 47,000 genes showing minor changes that weren't confirmed in follow-up testing. This suggests that brief, low-level cell phone radiation exposure may not significantly affect skin cells in laboratory conditions.
Sokolovic D et al. · 2012
Researchers exposed rats to mobile phone radiation for 4 hours daily over 60 days and found the animals lost significant body weight and developed anxiety-like behaviors including agitation and irritability. When rats were given melatonin (a natural hormone) along with the radiation exposure, these negative effects were largely prevented, suggesting melatonin may offer protective benefits against microwave radiation damage.
Leonard L. Libber, Thomas C. Rozzell
This technical report examined potential biological effects of SANGUINE, the U.S. Navy's extremely low frequency (ELF) communication system used to communicate with submarines worldwide. The study investigated whether the powerful ELF transmissions could impact human health or biological systems. This research was part of early efforts to understand health implications of large-scale military ELF installations.
Frank A. Brown, Jr.
This research by F. Brown examined how terrestrial electromagnetic fields influence animal orientation and navigation behaviors beyond visual cues. The study investigated connections between natural geomagnetic fields, circadian rhythms, and biological orientation mechanisms. This work helps establish the scientific foundation for understanding how animals naturally detect and respond to electromagnetic fields in their environment.
Bourdineaud JP et al. · 2017
Scientists exposed earthworms to cell phone radiation (900 MHz) for two hours at levels far below safety limits. The worms showed DNA damage and stress responses that lasted over 24 hours after exposure ended, suggesting even brief, low-level mobile phone frequencies cause lasting biological harm.
Cetin H et al. · 2014
Researchers exposed pregnant rats and their offspring to mobile phone radiation (900 and 1800 MHz) for 60 minutes daily, then measured oxidative stress markers in the brain and liver. The study found that EMF exposure decreased protective antioxidants in the liver while increasing oxidative stress markers in the brain, particularly affecting selenium levels. This suggests that mobile phone radiation can overwhelm the body's natural antioxidant defenses during critical developmental periods.
Odacı E et al. · 2013
Researchers exposed pregnant rats to cell phone radiation (900 MHz) daily during late pregnancy. Their offspring showed spinal cord damage and increased motor activity compared to unexposed pups, suggesting prenatal EMF exposure can disrupt normal nervous system development.
Hancı H et al. · 2013
Researchers exposed pregnant rats to cell phone-level radiation (900 MHz) for one hour daily during late pregnancy, then examined the testicles of their male offspring at 21 days old. The exposed offspring showed significant damage to their developing reproductive organs, including structural abnormalities, increased cell death, and DNA damage that persisted weeks after birth. This suggests that EMF exposure during pregnancy may harm the reproductive development of male offspring.