scholarly journals Impact of one’s own mobile phone in stand-by mode on personal radiofrequency electromagnetic field exposure

2012 ◽  
Vol 23 (5) ◽  
pp. 545-548 ◽  
Author(s):  
Damiano Urbinello ◽  
Martin Röösli
Keyword(s):  
Electromagnetic Field ◽  
Mobile Phone ◽  
Field Exposure ◽  
Radiofrequency Electromagnetic Field

scholarly journals Radiofrequency Electromagnetic Field Exposure and the Resting EEG: Exploring the Thermal Mechanism Hypothesis

2019 ◽  
Vol 16 (9) ◽  
pp. 1505 ◽  
Author(s):  
Loughran ◽  
Verrender ◽  
Dalecki ◽  
Burdon ◽  
Tagami ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Skin Temperature ◽  
Exposure Condition ◽  
Field Exposure ◽  
Double Blind ◽  
Baseline Phase ◽  
High Exposure ◽  
Sham Condition ◽  
Thermal Mechanism ◽  
Radiofrequency Electromagnetic Field

There is now strong evidence that radiofrequency electromagnetic field (RF-EMF) exposure influences the human electroencephalogram (EEG). While effects on the alpha band of the resting EEG have been repeatedly shown, the mechanisms underlying that effect have not been established. The current study used well-controlled methods to assess the RF-EMF exposure effect on the EEG and determine whether that effect might be thermally mediated. Thirty-six healthy adults participated in a randomized, double-blind, counterbalanced provocation study. A water-perfusion suit (34 C) was worn throughout the study to negate environmental influences and stabilize skin temperature. Participants attended the laboratory on four occasions, the first being a calibration session and the three subsequent ones being exposure sessions. During each exposure session, EEG and skin temperature (8 sites) were recorded continuously during a baseline phase, and then during a 30 min exposure to a 920 MHz GSM-like signal (Sham, Low RF-EMF (1 W/kg) and High RF-EMF (2 W/kg)). Consistent with previous research, alpha EEG activity increased during the High exposure condition compared to the Sham condition. As a measure of thermoregulatory activation, finger temperature was found to be higher during both exposure conditions compared to the Sham condition, indicating for the first time that the effect on the EEG is accompanied by thermoregulatory changes and suggesting that the effect of RF-EMF on the EEG is consistent with a thermal mechanism.

scholarly journals Modelling and assessment of the electric field strength caused by mobile phone to the human head

2016 ◽  
Vol 73 (6) ◽  
pp. 538-543 ◽  
Author(s):  
Raimondas Buckus ◽  
Birute Strukcinskiene ◽  
Juozas Raistenskis ◽  
Rimantas Stukas
Keyword(s):  
Electromagnetic Field ◽  
Field Strength ◽  
Electric Field ◽  
Mobile Phone ◽  
Electric Field Strength ◽  
Mobile Phones ◽  
Frequency Band ◽  
Human Head ◽  
Field Exposure ◽  
Head Surface

Background/Aim. Electromagnetic field exposure is the one of the most important physical agents that actively affects live organisms and environment. Active use of mobile phones influences the increase of electromagnetic field radiation. The aim of the study was to measure and assess the electric field strength caused by mobile phones to the human head. Methods. In this paper the software ?COMSOL Multiphysics? was used to establish the electric field strength created by mobile phones around the head. Results. The second generation (2G) Global System for Mobile (GSM) phones that operate in the frequency band of 900 MHz and reach the power of 2 W have a stronger electric field than (2G) GSM mobile phones that operate in the higher frequency band of 1,800 MHz and reach the power up to 1 W during conversation. The third generation of (3G) UMTS smart phones that effectively use high (2,100 MHz) radio frequency band emit the smallest electric field strength values during conversation. The highest electric field strength created by mobile phones is around the ear, i.e. the mobile phone location. The strength of mobile phone electric field on the phantom head decreases exponentially while moving sidewards from the center of the effect zone (the ear), and constitutes 1-12% of the artificial head?s surface. Conclusion. The highest electric field strength values of mobile phones are associated with their higher power, bigger specific energy absorption rate (SAR) and lower frequency of mobile phone. The stronger electric field emitted by the more powerful mobile phones takes a higher percentage of the head surface. The highest electric field strength created by mobile phones is distributed over the user ear.

scholarly journals Personal radiofrequency electromagnetic field exposure measurements in Swiss adolescents

2017 ◽  
Vol 99 ◽  
pp. 303-314 ◽  
Author(s):  
Katharina Roser ◽  
Anna Schoeni ◽  
Benjamin Struchen ◽  
Marco Zahner ◽  
Marloes Eeftens ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Field Exposure ◽  
Exposure Measurements ◽  
Radiofrequency Electromagnetic Field
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