Eltiti S et al · 2015
Researchers aggregated data from two previous double-blind provocation studies to test whether base station EMF exposure affects well-being in people with IEI-EMF and controls. In open provocation trials, 102 IEI-EMF and 237 control participants took part, and 88 IEI-EMF and 231 controls completed double-blind trials with GSM/UMTS or TETRA signals and a sham condition. IEI-EMF participants reported lower well-being during real versus sham exposure in open provocation but not in double-blind trials, and well-being was lower in high-load versus low-load trials regardless of EMF exposure.
Gryz K et al · 2015
Researchers modeled personal exposimeters measuring electric fields from 98–2450 MHz using a human body model and finite integration technique software. Calculations with 256 exposure scenarios showed the human body causes measurement errors from −96% to +133% compared to unperturbed fields. Placing a single exposimeter on the waist to the back side of the human body or on the front of the chest reduces the range of exposure assessment uncertainty across various conditions. Uncertainty using a single exposimeter remains significantly higher than spot measurements of unperturbed fields.
Unknown authors · 2015
Unknown authors · 2015
Researchers conducted an Israeli national survey of occupational radiofrequency field levels between 100 kHz and 40 GHz across 25 occupations. They recorded almost 4300 measurements from 900 sources and categorized exposures as routine, incidental, or unintended. The geometric mean of routine exposures was below 1% of ACGIH threshold limit values for most occupations, but walkie-talkie, induction heating, plastic welding, industrial heating, and diathermy workers had higher percentages. Incidental and unintended exposures exceeded the TLV for one and 14 occupations respectively. Walkie-talkie workers dominated collective exposure, accounting for 96.3% of the total.
Unknown authors · 2015
The review examines policy and advisory responses to children's RF-EMF exposure from a wide variety of sources. It categorizes approaches ranging from ICNIRP/IEEE guidelines stating no extra precautions needed to precautionary standards with much lower exposure limits and extensive advice. The wide range of policy approaches can be confusing for parents and carers of children. The author recommends minimum exposure of children to RF-EMF, noting this does not indicate a need for alarm but mirrors routine health-and-safety precautions.
Unknown authors · 2015
Researchers measured indoor radiofrequency exposure at 343 locations in Hebron. The maximum total power density was about 2.3 × 10 W m with an exposure quotient of about 0.01, well below the ICNIRP limit. FM radio contributed 46% of the exposure quotient, GSM900 26%, DECT phones 15%, WLAN 9%, unknown sources 3%, and TV broadcasting 1%.
Yoon S, Choi JW, Lee E, Ahn H, Kim HS, Choi HD, Kim N. · 2015
Among ipsilateral users, the adjusted odds ratios for lifetime years of use and cumulative hours of use were 1.25 (95% CI 0.55 to 2.88) and 1.77 (95% CI 0.32 to 1.84), respectively. The authors concluded that the results do not support the hypothesis that mobile phone use increases glioma risk, but suggest further evaluation for long-term users.
Shrestha M, Raitanen J, Salminen T, Lahkola A, Auvinen A · 2015
A case-control study in Finland included 80 pituitary tumor cases and 240 matched controls. Mobile phone use history was obtained via structured interview and analyzed with conditional logistic regression. Regular mobile phone users showed a reduced odds ratio of 0.39 (95% CI 0.21-0.72) compared to never or non-regular users, though the authors noted this may reflect methodological limitations. No increased risk was found after 10 or more years since first use (OR 0.69, 95% CI 0.25-1.89), nor in relation to duration, cumulative hours, or cumulative number of calls, with similar results for analog and digital phones. The authors noted no excess risk for short- or medium-term use, but uncertainties remained for longer duration due to few participants reporting use beyond 10 years.
Schoeni A, Roser K, Röösli M. · 2015
In a cross-sectional study, 439 adolescents completed questionnaires about mobile phone use at night and health, and 233 provided operator-recorded use data. Standardized computerized cognitive tests assessed memory and concentration capacity. Adolescents who reported being awakened at least once a month had higher odds of daytime tiredness (OR 1.86) and rapid exhaustibility (OR 2.28). Similar associations were seen with objective operator-recorded data for tiredness (OR 1.63) and rapid exhaustibility (OR 2.32). Cognitive test performance was not related to nighttime mobile phone use.
Liu YX et al. · 2015
Researchers exposed human glioblastoma cell lines U251-MG and U87-MG to 1950-MHz TD-SCDMA fields at a maximum SAR of 5.0 W/kg for 12, 24, and 48 hours. They measured cell morphology, apoptosis, cell cycle, growth, gene and protein expression, tumor formation, and invasiveness. No significant differences in biological features or tumor formation ability were found between exposed and unexposed cells. Exposure did not act as a cytotoxic or tumor-promoting agent affecting proliferation or gene expression.
Dabouis V et al. · 2015
Researchers studied causes of death among 57,000 French Navy personnel on surface vessels from 1975 to 2000. They compared mortality between radar-exposed and control groups defined by on-board workplace. Overall mortality was similar in both groups with a relative risk of 1.00. Cancer mortality also showed no increase with a relative risk of 0.92. The authors noted the number of deaths was very small for some cancer sites.
Lai J et al. · 2015
Sixty adult male rats were randomly assigned to a sham group or a 50 Hz/100 µT ELF-EMF exposure group for 24 weeks. During the exposure period, body weight, food intake, and water intake were recorded and showed no differences between groups. Behavioral tests for anxiety, depression, cognition, and memory found no effects of ELF-EMF, and brain morphology and histology were unchanged.
Silva V et al. · 2015
Researchers prepared primary human thyroid cell cultures from normal thyroid tissue of surgical patients and exposed them to simulated cell phone radiofrequency energy under different conditions. They assessed proliferation using Ki-67 and p53 expression, and measured DNA ploidy, HSP70, and ROS by fluorescence-activated cell sorting. No irradiation condition affected Ki-67, p53, DNA ploidy, HSP70, or ROS, and the researchers concluded there was no potential carcinogenic effect.
Xiong DF, Liu JW, Li ZX, Zeng GC, Li HL · 2015
Researchers investigated whether ELF-EMF exposure could induce oxidative stress in workers performing tour-inspection near transformers and distribution power lines. The study included 310 exposed inspection workers and 300 logistical staff as controls. No significant changes in enzyme activities or MDA concentration were found. Micronucleus lymphocyte frequency and micronuclei frequency also showed no statistically significant changes.
Kesari KK, Luukkonen J, Juutilainen J, Naarala J · 2015
Human SH-SY5Y neuroblastoma cells were exposed to a 50 Hz, 100 μT magnetic field for 24 hours with or without menadione co-exposure. Micronuclei, reactive oxygen species, and lipid peroxidation were measured at 15, 30, and 45 days after exposure. Micronuclei levels were significantly elevated at 15 and 30 days but not at 45 days after exposure. Lipid peroxidation was significantly decreased at 30 and 45 days after exposure.
Jin H, Yoon HE, Lee JS, Kim JK, Myung SH, Lee YS. · 2015
Researchers assessed whether combined exposure to 60 Hz ELF-MF at 1 mT or 2 mT with ionizing radiation or hydrogen peroxide causes genomic instability in non-tumorigenic human lung epithelial L132 cells. They examined the percentages of G2/M-arrested cells and aneuploid cells after exposures. Exposure to 0.5 Gy ionizing radiation or 0.05 mM hydrogen peroxide for 9 hours increased aneuploidy but did not cause apoptotic cell death. ELF-MF alone did not affect the percentages of G2/M-arrested cells, aneuploid cells, or subG1 phase populations. Combining ELF-MF with ionizing radiation or hydrogen peroxide did not further increase G2/M arrest or aneuploidy.
Trunk A et al. · 2015
Researchers used a full factorial design with 25 participants performing a visual target detection task while recording reaction time and EEG. Target trials were divided into low and high probability sets based on the distance between consecutive targets. Caffeine further shortened reaction time in high-probability trials and decreased pre-target alpha amplitude, indicating higher arousal. UMTS exposure alone or combined with caffeine did not change reaction time or pre-stimulus oscillatory brain activity.
Sauter C et al. · 2015
Researchers conducted a double-blind cross-over study with 30 healthy young men exposed to TETRA signals at 1.5 W/kg and 6.0 W/kg and sham. Exposure lasted 2.5 hours at 385 MHz with specific absorption rates of 1.5 and 6.0 W/kg. Attention was unchanged in two of three tasks, while working memory showed significant changes in two of four subtasks. 5 out of 35 tested parameters showed significant results, four of which indicated improved performance. Mood, well-being, and subjective somatic complaints were not affected by TETRA exposure.
Malek F, Rani KA, Rahim HA, Omar MH · 2015
The study aimed to determine whether short-term exposure at 1 V/m to typical GSM and UMTS signals affects cognitive performance and physiological parameters. The sample included 200 subjects, with 50.0% reporting idiopathic environmental intolerance attributed to electromagnetic fields (IEI-EMF) and 50.0% non-IEI-EMF. No statistically significant differences were found between real exposure and sham exposure for cognitive performance or physiological effects in either group (P’s > 0.05).
Gupta N, Goyal D, Sharma R, Arora KS · 2015
The study aimed to evaluate the effects of long-term mobile phone usage on auditory brainstem evoked responses. Researchers conducted a retrospective cross-sectional case-control study with 100 healthy subjects aged 18 to 30, including 67 long-term GSM mobile phone users and 33 non-user controls. No significant difference was found in latencies, interpeak latencies, and amplitudes of ABR waves between the groups.
Zhou LY et al. · 2015
A total of 34,417 pregnant women participated in the survey from January 2000 to December 2013 and 32,296 questionnaires were collected. The spontaneous abortion rate in the total sample was 3.0%. Logistic regression identified having a cold during pregnancy, decoration during pregnancy, living near a mobile communication base station within 100 meters, keeping pets, and high SAS as independent risk factors.
Zheng F et al. · 2015
Fatigue was significantly associated with years of MP usage and daily duration of MP calls, while headache was significantly associated with daily duration of MP calls. After adjusting for confounders, only the association between fatigue and MP usage remained statistically significant, and no significant association was found between MP use and other physical symptoms.
Zalata A et al. · 2015
In this prospective study, 124 semen samples were grouped into normozoospermia (N, n=26), asthenozoospermia (A, n=32), asthenoteratozoospermia (AT, n=31), and oligoasthenoteratozoospermia (OAT, n=35). Each sample was split into non-exposed and exposed portions, with the exposed portion receiving cell phone radiation for 1 hour. After exposure, sperm motility, acrosin activity, DNA fragmentation, and CLU gene expression were assessed. Exposure significantly decreased sperm motility, linear velocity, linearity index, and acrosin activity, and significantly increased DNA fragmentation, CLU gene expression, and CLU protein levels, with the largest changes in the OAT group.
Singh S, Mani KV, Kapoor N. · 2015
Sieroń-Stołtny K et al. · 2015
Researchers exposed male rats to 900 MHz mobile phone electromagnetic field for 28 days and measured bone size, mechanical properties, mineral content, and bone turnover markers. The authors concluded that the field does not directly affect bone size but alters bone mineralization and turnover processes, influencing mechanical strength.
