Unknown authors · 2008
This comprehensive review examined research published from 2005-2007 on environmental and occupational cancer causes, including radiofrequency radiation from mobile phones. The analysis found strengthened evidence linking brain cancer to non-ionizing radiation, particularly radiofrequency fields from cell phones, among other environmental carcinogens. The researchers called for a new cancer prevention approach based on limiting exposure to multiple environmental factors.
Unknown authors · 2008
This 2008 review by Hardell and Sage examined the BioInitiative Report's findings on biological effects from both power line frequencies and wireless radiation at levels below current safety standards. The analysis found evidence linking EMF exposure to childhood leukemia, brain tumors, neurological effects, immune system disruption, and other health impacts. The authors concluded that current exposure guidelines are inadequate and called for significantly lower safety limits based on biological effects rather than just heating.
Unknown authors · 2008
Researchers exposed pregnant rats to extremely weak magnetic fields (50-500 nanoTesla) throughout pregnancy and examined their offspring as adults. Rats exposed to specific intensity ranges showed elevated liver enzymes, blood sugar, and uric acid levels, plus abnormal brain cell development in memory-forming regions. This suggests even ultra-low magnetic field exposure during pregnancy can cause permanent changes in offspring.
Unknown authors · 2008
Finnish researchers measured magnetic field levels in 30 apartment buildings to see if transformer stations create predictable high-EMF exposure zones. They found apartments directly above transformers averaged 0.62 µT compared to 0.11 µT in upper floor reference units. This creates reliable exposure categories for studying health effects without the usual confounding factors that plague EMF epidemiology.
Unknown authors · 2008
This 2008 study examined whether corona ions from high-voltage power lines could disrupt melatonin production by creating electrical field disturbances in the atmosphere. The research found that these disturbances, which can extend hundreds of meters from power lines, may interfere with the body's natural sleep hormone production and circadian rhythms, potentially explaining increased leukemia rates near power lines.
Unknown authors · 2008
This 2008 meta-analysis examined 14 studies involving thousands of workers exposed to extremely low frequency electromagnetic fields (ELF-EMF) from power lines and electrical equipment. The research found workers with occupational ELF-EMF exposure had roughly double the risk of developing Alzheimer's disease compared to unexposed workers. The association was particularly strong among men, with a 105% increased risk.
Unknown authors · 2008
Researchers analyzed 13 studies examining whether living near power lines increases childhood brain cancer risk. They found no increased risk for most exposure levels, but couldn't rule out a moderate risk increase at the highest magnetic field exposures (above 0.3-0.4 microT). The analysis included over a decade of research on residential magnetic field exposure.
Unknown authors · 2008
Turkish researchers exposed 15 female rats to extremely low frequency magnetic fields for 4 hours daily over 7 days, then examined their eye tissue under microscopes. The exposed rats showed significantly fewer goblet cells (which produce tears), plus conjunctival swelling and inflammation compared to unexposed controls. The researchers concluded this EMF exposure could contribute to dry eye symptoms.
Unknown authors · 2008
Researchers studied 46 spot welders exposed to extremely low frequency magnetic fields (50 Hz, 8.8-84 microTesla) and found their red blood cells had significantly reduced antioxidant enzyme activity compared to unexposed workers. The study showed a 22% decrease in superoxide dismutase and 12.3% decrease in glutathione peroxidase, suggesting these magnetic fields act as oxidative stressors even at recommended exposure levels.
Unknown authors · 2008
Researchers investigated unusually high cancer rates among teachers at a California middle school, finding 16 teachers developed 18 cancers between 1988-2005. The study discovered a strong correlation between cancer incidence and high frequency voltage transients (electrical noise) on classroom wiring, with teachers facing 2.78 times the expected cancer rate overall.
Unknown authors · 2008
Hungarian researchers measured magnetic field exposure in 31 apartment buildings with built-in electrical transformers. They found apartments directly above transformers had magnetic field levels nearly 10 times higher (0.98 microT) than apartments on the same floor (0.13 microT) or higher floors (0.1 microT). This study demonstrates how proximity to electrical infrastructure creates dramatically different EMF exposure levels within the same building.
Unknown authors · 2008
UCLA researchers updated previous analyses of workplace electromagnetic field exposure and cancer risk, examining studies from 1993-2007. They found small increases in brain cancer (10%) and leukemia (13%) risk among EMF-exposed workers, but noted these increases were smaller than in earlier analyses and showed no clear exposure-response pattern.
Unknown authors · 2008
This Columbia University review examined how electromagnetic fields can trigger biological changes in proteins and DNA despite having low energy levels. The research found that weak EMF can cause charge redistribution in large molecules, leading to structural changes that affect cellular processes like protein synthesis and membrane transport. This suggests EMF can control and amplify biological processes through effects on molecular charge distribution.
Unknown authors · 2008
Researchers exposed female rats to 50 Hz magnetic fields (the same frequency as power lines) at 25 microTesla for 18 weeks and found significant disruptions to reproductive hormones and ovarian weight. The magnetic field reduced key hormones like FSH, LH, progesterone, and estrogen, with some effects persisting even 12 weeks after exposure ended. These findings suggest power line frequency EMF may interfere with mammalian fertility and reproduction.
Unknown authors · 2008
Researchers exposed genetically modified mice predisposed to ALS (Lou Gehrig's disease) to power line frequency magnetic fields for 7 weeks before disease onset. The study found no evidence that 50 Hz magnetic field exposure at levels of 100 or 1000 microTesla affected disease progression, motor function, or survival time. This controlled animal study failed to support epidemiological findings suggesting a link between occupational EMF exposure and ALS.
Unknown authors · 2008
Italian researchers studied 52 workers exposed to different levels of extremely low frequency magnetic fields and measured their natural killer (NK) cell activity, which helps the body fight cancer. Workers exposed to magnetic fields above 1 microTesla showed significantly reduced NK cell function compared to those with lower exposure. This finding suggests that workplace EMF exposure may weaken immune defenses against cancer development.
Unknown authors · 2008
This 2008 research review examined decades of workplace studies on extremely low frequency (ELF) electromagnetic field exposure and health outcomes including cancer, heart disease, and neurological conditions. The analysis found no strong or consistent associations between occupational EMF exposure and disease, though poor exposure assessment methods in many studies made definitive conclusions difficult. The researchers identified ALS (Lou Gehrig's disease) as needing urgent investigation due to reported links with electrical occupations.
Unknown authors · 2008
Scientists exposed 280 rats to 50 Hz magnetic fields (the same frequency as power lines) at 100 microT while chemically inducing leukemia to test if EMF exposure increases cancer risk. The study found no significant differences in leukemia development, survival rates, or disease severity between exposed and unexposed rats. This research suggests that power line frequency magnetic fields do not promote or accelerate leukemia development in this animal model.
Unknown authors · 2008
Swiss researchers tracked 4.7 million people from 2000-2005 to study deaths from brain diseases near high-voltage power lines. They found people living within 50 meters of 220-380 kV power lines for 15+ years had double the risk of dying from Alzheimer's disease. The risk increased with longer exposure duration, showing a clear dose-response relationship.
Unknown authors · 2008
Researchers exposed mice to 60 Hz magnetic fields at extremely low levels (14 microT) for 16 weeks and found significantly increased cell death in the testicles. The magnetic field strength was similar to what you might encounter near some household appliances. This suggests that even very weak power-line frequency fields may affect male reproductive health.
Unknown authors · 2008
This 2008 review examined the connection between electromagnetic field exposure and childhood leukemia risk. The analysis confirmed that extremely low-frequency magnetic fields above 0.3-0.4 microT are associated with increased childhood leukemia risk, leading to their classification as possibly carcinogenic. However, no biological mechanism has been established and the association could still be due to chance or bias.
Unknown authors · 2008
Researchers exposed human skin cells to intermittent extremely low-frequency magnetic fields (50-1000 microTesla) for 15 hours to test for DNA and chromosomal damage. Using multiple sensitive detection methods, they found no evidence of genetic damage from the magnetic field exposure, contradicting some previous studies that reported harmful effects.
Unknown authors · 2008
Researchers studied 123 children with acute leukemia to see if certain DNA repair gene variants interact with power line and transformer EMF exposure. They found children with a specific XRCC1 gene variant had over 4 times higher odds of leukemia when living within 100 meters of electrical infrastructure. This suggests some children may be genetically more vulnerable to low-level electromagnetic field exposure.
Unknown authors · 2008
German researchers studied 1,959 children with leukemia and 5,848 healthy controls living near TV and radio broadcast transmitters between 1984-2003. They found no increased risk of childhood leukemia from radio frequency electromagnetic field exposure, even among children living within 2 kilometers of high-power broadcast towers. The study represents one of the largest investigations into broadcast tower EMF and childhood cancer.
Unknown authors · 2008
This 2008 review by researchers Hardell and Sage examined biological effects from electromagnetic field exposure and concluded that current safety standards are inadequate. The authors found evidence linking both power line frequencies and wireless radiation to health problems including childhood leukemia, brain tumors, and immune system disruption. They called for significantly lower exposure limits based on documented biological effects occurring at levels well below current guidelines.
