Modelovanje i procena jačine električnog polja mobilnog telefona u predelu glave

  • Raimondas Buckus Faculty of Medicine, Vilnius University, Vilnius, Lithuania
  • Birute Strukcinskiene Faculty of Health Sciences, Klaipeda University, Klaipeda, Lithuania
  • Juozas Raistenskis Faculty of Medicine, Vilnius University, Vilnius, Lithuania
  • Rimantas Stukas Faculty of Medicine, Vilnius University, Vilnius, Lithuania
DOI: https://doi.org/10.2298/VSP141221044B
Ključne reči: cellular phone||, ||mobilni telefon, electromagnetic fields||, ||elektromagnetna polja, health||, ||zdravlje, head||, ||glava,

Sažetak


Uvod/Cilj. Izloženost elektromagnetnom polju spada u najvažnije fizičke agense koji aktivno utiču na žive organizme i na prirodu. Stalna upotreba mobilnih telefona povećava radijaciju elektromagnetnog polja. Cilj ove studije bio je da se izmeri i odredi jačina električnog polja koje stvara mobilni telefon u predelu ljudske glave. Metode. U ovoj studiji koristili smo softver COMSOL Multiphysics za utvrđivanje jačine električnog polja koje stvaraju mobilni telefoni oko glave. Rezultati. Druga generacija telefona 2G GSM (2nd Generation Global System for Mobile) frekvencije od 900 MHz i snage od 2 W ima snažnije električno polje od mobilnih telefona 2G GSM koji rade u višem opsegu frekvencije, tj. 1 800 MHz i snage do 1 W tokom razgovora. Treća generacija pametnih telefona 3G UMTS koji efektivno koriste visoki opseg radiofrekvencije, tj. 2 100 MHz, emituju najslabije električno polje tokom razgovora. Najjače električno polje mobilni telefoni zrače u predelu uha, tj. na mestu mobilnog telefona. Jačina električnog polja mobilnog telefona na model glave opada eksponencijalno kada se pomera na stranu od epicentra efektivne zone (uho) i iznosi 1–12% površine modela glave. Zaključak. Najviše vrednosti jačine električnog polja mobilnih telefona povezane su sa većom snagom, većom specifičnom brzinom apsorpcije energije (specific energy absorption rate – SAR) i nižom frekvencijom. Jače električno polje koje emituju mobilni telefoni veće snage zauzima veći procenat površine ljudske glave. Najjače električno polje mobilnog telefona stvara se u predelu uha korisnika.

 

 

 


Reference

Akbal A, Kiran Y, Sahin A, Turgut-Balik D, Balik H. Effects of electromagnetic waves emitted by mobile phones on germina-tion, root growth, and root tip cell mitotic division of Lens cu-linaris Medik. Pol J Environ Stud 2012; 21(1): 23−9.

Parazzini M, Sibella F, Lutman ME, Mishra S, Moulin A, Sliwinska-Kowalska M, et al. Effects of UMTS cellular phones on human hearing: results of the European project EMFnEAR. Radiat Res 2009; 172(2): 244–51.

Dolan M, Rowley J. The precautionary principle in the context of mobile phone and base station radio frequency exposures. Environ Health Persp 2009; 117(9): 1329–32.

Friedman J, Kraus S, Hauptman Y, Schiff Y, Seger R. Mechanism of short-term ERK activation by electromagnetic fields at mo-bile phone frequencies. Biochem J 2007; 405(3): 559–68.

Hillert L, Ahlbom A, Neasham D, Feychting M, Järup L, Navin R, et al. Call-related factors influencing output power from mobile phones. J Expo Sci Environ Epidemiol 2006; 16(6): 507−14.

Henderson SI, Bangay MJ. Survey of exposure levels from mobile telephone base stations in Australia. Bioelectromagnetics 2006; 27(1): 73–6.

Jung KB, Kim TH, Kim JL, Doh H J, Chung Y C, Choi JH, et al. Development and validation of reverberation-chamber type whole-body exposure system for mobile-phone frequency. Electromagn Biol Med 2008; 27(1): 73–82.

Kwon MS, Huotilainen M, Shestakova A, Kujala T, Näätänen R, Hämäläinen H. No effects of mobile phone use on cortical au-ditory change-detection in children: an ERP study. Bioelec-tromagnetics 2010; 31(3): 191–9.

Grigoriev J. Electromagnetic fields and the public: EMF Stan-dards and estimation of risk. Earth Environ Sci 2010; 10(1): 1–6.

Schmid G, Lager D, Preiner P, Uberbacher R, Cecil S. Exposure caused by wireless technologies used for short-range indoor communication in homes and offices. Radiat Prot Dosim 2007; 124(1): 58–62.

Lin JC. Cellular mobile phones and children. IEEE Trans An-tennas Propag 2002; 44(5): 142−5.

Loughran SP, Wood AW, Barton JM, Croft RJ, Thompson B, Stough C. The effect of electromagnetic fields emitted by mobile phones on human sleep. Neuroreport 2005; 16(17): 1973−6.

Luria R, Eliyahu I, Hareuveny R, Margaliot M, Meiran N. Cognitive effects of radiation emitted by cellular phones: the influence of exposure side and time. Bioelectromagnetics 2009; 30(3): 198–204.

Nam KC, Lee JH, Noh HW, Cha EJ, Kim NH, Kim DW. Hypersensitivity to RF fields emitted from CDMA cellular phones: a provocation study. Bioelectromagnetics 2009; 30(8): 641–50.

Bahr A, Dorn H, Bolz T. Dosimetric assessment of an exposure system for simulating GSM and WCDMA mobile phone usage. Bioelectromagnetics 2006; 27(4): 320–7.

Baltrenas P, Buckus R. The exploration and assessment of elec-tromagnetics fields in duplicators. J Environ Eng Landsc 2009; 17(2): 89−96.

Cardis E. Brain tumour risk in relation to mobile phone use: results of the INTERPHONE international case-control study. Int J Epidemiol 2010; 39(3): 675−94.

Parazzini M, Lutman ME, Moulin A, Barnel C, Sliwinska-Kowalska M, Zmyslony M, et al. Absence of short-term effects of UMTS exposure on the human auditory system. Radiat Res 2010; 173(1): 91–7.

Psenakova Z, Hudecova J. Influence of Electromagnetic Fields by Electronic Implants in Medicine. Electron Electric Eng 2009; 95 (7): 37–40.

Usman A, Wan Ahmad W, Ab Kadir M, Mokhtar M. Wireless phones electromagnetic field radiation exposure assessment. Am J Eng Appl Sci 2009; 4 (2): 771−4.

Buckus R, Strukčinskiene B, Raistenskis J. The assessment of electromagnetic field radiation exposure for mobile phone users. Vojnosanit Pregl 2014; 71(12): 1138–43

Objavljeno
2017/03/01
Broj časopisa
Vol. 73 Br. 6 (2016)
Rubrika
Originalni članak