Liu H et al. · 2014
Researchers studied 854 power plant workers in China to examine how workplace electromagnetic field exposure affects sleep quality. Workers with longer daily EMF exposure had 68% higher odds of poor sleep quality compared to those with shorter exposure times. The study suggests that EMF exposure specifically damages sleep quality rather than sleep duration.
Van Den Bossche M, Verloock L, Aerts S, Joseph W, Martens L. · 2014
Belgian researchers tested electromagnetic fields from touchscreens, energy-saving bulbs, and fluorescent lamps. They found these common devices exceed international safety limits when used within arm's reach, with touchscreens surpassing limits by 56% at close range. Users should maintain 15-25 centimeters distance for safety.
Urbinello D, Joseph W, Verloock L, Martens L, Röösli M. · 2014
Researchers measured radiofrequency electromagnetic field (RF-EMF) exposure from sources like cell towers and WiFi across three European cities over one year. They found that RF exposure levels increased significantly - by 20% to 57% - in all outdoor areas during just 12 months, with the highest exposures occurring on public transportation. While levels remained below regulatory limits, the rapid year-over-year increases demonstrate how quickly our EMF environment is intensifying.
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.
Urbinello D, Huss A, Beekhuizen J, Vermeulen R, Röösli M. · 2014
Researchers measured radiofrequency radiation from cell phone towers in different neighborhoods of Basel and Amsterdam using portable meters. They found that downtown and business areas had radiation levels of 0.30 to 0.53 V/m, while residential areas had lower levels of 0.09 to 0.41 V/m. The study demonstrated that these measurements were highly consistent day-to-day, making portable meters a reliable tool for assessing cell tower radiation exposure in urban environments.
Taberski K et al. · 2014
Researchers exposed hamsters to 900 MHz electromagnetic fields (similar to 2G cell phone signals) at different power levels for one week each to study metabolic changes. At the highest exposure level (4 W/kg), hamsters showed reduced daytime metabolism, lower food consumption, and slightly elevated skin temperature, even though their core body temperature remained stable. This suggests that high-level radiofrequency exposure can alter basic metabolic processes in mammals.
Sunohara T, Hirata A, Laakso I, Onishi T · 2014
Scientists tested how much electromagnetic energy people absorb from wireless phone charging pads at 140 kHz frequency. They found extremely low absorption levels - 72 nanowatts per kilogram at 1 watt power. This confirms wireless charging systems operate far below safety limits for human exposure.
Roivainen P, Eskelinen T, Jokela K, Juutilainen J · 2014
Researchers measured electromagnetic field exposure for store cashiers working near security gates that detect unpaid merchandise. While normal workplace exposure stayed within safety limits, magnetic field levels briefly exceeded international guidelines when cashiers walked through the gates themselves, suggesting potential health risks.
Pawlak K, Sechman A, Nieckarz Z. · 2014
Polish researchers exposed chicken embryos to cell phone radiation (1800 MHz) during their development and measured hormone levels in their blood. They found that the radiation disrupted the thyroid system, reducing important thyroid hormones while increasing stress hormones in the embryos and newly hatched chicks. This suggests that exposure to wireless radiation during critical developmental periods can interfere with the hormone systems that control growth and metabolism.
Mugunthan N, Anbalagan J, Meenachi S, Samy AS. · 2014
Researchers exposed mice to cell phone radiation (900-1900 MHz) for 48 minutes daily over six months and examined their kidneys under a microscope. The study found significant structural damage to kidney tissue, including enlarged spaces in filtering units (glomeruli) and damaged tubules that process urine. This suggests that chronic exposure to cell phone-level radiation may harm kidney function at the cellular level.
Gryz K, Karpowicz J, Leszko W, Zradziński P. · 2014
Polish researchers measured radiofrequency radiation in 45 office buildings from cell towers, WiFi, and broadcast transmitters. They found exposure levels were generally low, with highest readings near indoor cell antennas (1.8 V/m) and radio transmitters (3.8 V/m), but all remained below international safety limits.
Alon L, Cho GY, Yang X, Sodickson DK, Deniz CM. · 2014
Researchers developed a new method using MRI to measure how much radiofrequency energy devices like cell phones deposit into body tissues by tracking temperature changes. When they tested a cell phone at maximum power for 15 minutes, it caused tissue heating of 1.7°C and delivered energy at 0.54 watts per kilogram. This technique provides a more accurate way to test whether wireless devices meet safety limits for human exposure.
Dimitrijević D, Savić T, Anđelković M, Prolić Z, Janać B. · 2014
Researchers exposed fruit flies to 50 Hz magnetic fields (the same frequency as power lines) at 0.5 milliTesla for 48 hours and tracked their development and behavior. The magnetic field exposure shortened development time, increased survival rates, but significantly reduced the flies' movement and activity levels. This study demonstrates that extremely low frequency magnetic fields can alter both biological development and nervous system function in living organisms.
Ghodbane S1 et al. · 2014
Researchers exposed rats to static magnetic fields (128 mT) for one hour daily over five days and found the exposure disrupted glucose metabolism, increasing blood sugar levels by 21% and reducing liver energy storage. However, vitamin E supplementation prevented these metabolic disruptions, suggesting antioxidants may protect against magnetic field-induced metabolic damage.
Mahdavi SM, Sahraei H, Yaghmaei P, Tavakoli H. · 2014
Researchers exposed rats to extremely low frequency electromagnetic fields (1 and 5 Hz) for 21 days and measured changes in stress hormones and behavior. They found that these EMF exposures altered key stress hormones - increasing ACTH while decreasing noradrenaline - and changed glucose levels differently depending on frequency. The study demonstrates that even very low frequency electromagnetic fields can disrupt the body's stress response system.
Dimitrijević D, Savić T, Anđelković M, Prolić Z, Janać B. · 2014
Scientists exposed fruit flies to 50 Hz magnetic fields (power line frequency) and found the fields reduced adult fly movement and activity, regardless of when exposure occurred. This demonstrates that common electrical frequencies can alter nervous system function in living organisms.
Sarapultseva EI, Igolkina JV, Tikhonov VN, Dubrova YE · 2014
Researchers exposed single-celled organisms called ciliates to radiofrequency radiation at levels similar to what we encounter from cell phones and wireless devices. The radiation significantly reduced the organisms' ability to move, and this damage persisted in their offspring for at least 10-15 generations even though the offspring were never directly exposed. This suggests that RF radiation can cause biological effects that are passed down to future generations.
Cammaerts M-C, Vandenbosch GAE, Volski V · 2014
Belgian researchers exposed ant colonies to GSM cell phone radiation at levels legally allowed in Brussels (1.5 V/m) for 10-minute periods and observed their behavior. The ants showed measurable changes in their movement patterns, had trouble following scent trails efficiently, and became less responsive to their alarm pheromones. This suggests that even brief exposures to everyday cell phone radiation levels can disrupt the nervous system functioning of these insects.
Nyakyi CP, Mrutu SI, Sam A, Anatory J · 2013
Tanzanian researchers developed a mathematical model to calculate safe distances from cell phone towers based on actual power measurements and tower specifications. They used radiation meters to measure power density at various locations and applied WHO/ICNIRP safety guidelines to determine how far people should stay from these towers. The study provides a practical framework for establishing safety zones around cellular infrastructure.
Wu T, Shao Q, Yang L, Qi D, Lin J, Lin X, Yu Z. · 2013
Chinese researchers measured electromagnetic field levels around 827 cell phone base stations after residents complained about potential overexposure. They found that EMF levels near the towers were very low and complied with international safety guidelines. The study also showed that transparent measurement and communication helped improve public perception of base station safety.
Thielens A, Vermeeren G, Kurup D, Joseph W, Martens L. · 2013
Researchers analyzed how close people can safely get to cell tower antennas operating at different frequencies (900 MHz to 2600 MHz) without exceeding safety limits. They found that current safety guidelines aren't always protective when the antenna is small compared to body size, and determined specific distances needed for compliance in front, back, and side positions. The study provides a method for calculating safe distances when multiple frequencies operate simultaneously.
Salah MB, Abdelmelek H, Abderraba M · 2013
Researchers exposed rats to WiFi signals (2.45 GHz) for one hour daily over 21 days and found it created diabetes-like symptoms and damaged the body's natural antioxidant defenses in the liver and kidneys. The WiFi exposure reduced protective enzymes by 33-68% and increased cellular damage markers by up to 51%. When researchers gave the rats olive leaf extract, it prevented the glucose problems and restored most of the antioxidant protection.
Ozgur E et al. · 2013
Researchers exposed pregnant rabbits and their offspring to 1800 MHz cell phone radiation (similar to GSM signals) for short periods daily. They found that this exposure caused oxidative stress and altered blood chemistry in the infant rabbits, with different effects in males versus females. This suggests that developing animals may be particularly vulnerable to radiofrequency radiation during critical growth periods.
Nayyeri V, Hashemi SM, Borna M, Jalilian HR, Soleimani M · 2013
Iranian researchers measured radiofrequency radiation levels at 900 locations around 60 cell phone towers in Tehran, focusing on areas near hospitals and schools. They found all radiation levels were below international safety guidelines established by the International Commission on Non-Ionizing Radiation Protection (ICNIRP). The study aimed to address public concerns about potential health risks from the growing number of cell towers in urban areas.
Nasseri S, Monazzam M, Beheshti M, Zare S, Mahvi A · 2013
Researchers measured microwave radiation patterns around cell phone towers (base stations) in an Iranian city to understand how exposure levels change at different heights and distances. They found that radiation levels increased significantly as measurement height increased, particularly in crowded urban areas where rigid surfaces and high mobile phone usage amplify wave density. The study demonstrates that cell tower placement in populated areas creates higher public exposure to microwave radiation.