Experimental Assessment of Specific Absorption Rate Using Measured Electric Field Strength in Benson Idahosa University and Environs
American Journal of Modern Physics
Volume 4, Issue 2, March 2015, Pages: 92-96
Received: Mar. 25, 2015; Accepted: Mar. 31, 2015; Published: Apr. 9, 2015
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Authors
Isabona Joseph, Department of Physics, Federal University Lokoja, Lokoja, Kogi State, Nigeria
Ojuh Osamiromwen Divine, Department of Basic Sciences Benson Idahosa University, Benin City, Nigeria
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Abstract
There has been growing concern in Nigeria and even the world at large that exposure to radiation from base stations and mobile handsets could lead to increased risk of illnesses such as cancer and may adversely affect cognitive functions like concentration and may cause memory loss, headaches, dizziness and epilepsy among others. In the present paper, the Assessment of RF radiation in the far-field from selected mobile base station sites in BIU and environs, Benin City, Nigeria has been carried out using a handheld three-axis radio frequency meter (EMF meter) for measurement of Electric field. The meter is a broad band device for monitoring high frequency radiation in range of 50 MHz to 3.6GHz. It is used in three-axis (isotropic) measurement mode. The electric field strength of RF radiation within a radial distance of the range 0- 100m was measured with the RF meter. The average values of the Specific absorption rate (SAR) for the general public was estimated from the measured electric field strength and the values gotten were compared with International commission on Non-ionizing radiation. Results shows that the values of the SAR for the eighth base stations selected for the study are within the range of 0.00010W/Kg- 0.0012W/Kg. These values are quite lower than the limit by International Commission on Non –ionizing Radiation Protection (ICNIRP) which is 0.08W/Kg for the whole body average SAR. This may indicate that there is no significant health risk for the general public that are always the vicinity of the Far field of the selected base stations for the various mobile service provider the area.
Keywords
Mobile Phone Base Station, International Commission on Non –Ionizing Radiation Protection, Specific Absorption Rate, Exposure Level
To cite this article
Isabona Joseph, Ojuh Osamiromwen Divine, Experimental Assessment of Specific Absorption Rate Using Measured Electric Field Strength in Benson Idahosa University and Environs, American Journal of Modern Physics. Vol. 4, No. 2, 2015, pp. 92-96. doi: 10.11648/j.ajmp.20150402.16
References
[1]
Fesenko, E.E., Makar, V.R., Novoselova, E.G., Sadovnikov, V.B. (1999), “Microwaves andcellular immunity: Effect of whole body microwave irradiation on tumor necrosis factorproduction in mouse cells”. Bioelectrochemical Bioenerg, 49(1):29-35.
[2]
Krause, C.M., Sillanmaki, L., Koivisto, M., Haggqvist, A., Saarela, C., Revonsuo, A., Laine, M.and Hamalainen H., (2000), "Effects of electromagnetic field emitted by cellular phones on theEEG during a memory task”, Neuroreport, 11(4): 761-764.
[3]
Sabah H.S. (2013). Study of the Cell Towers Radiation Levels in Residential Areas, Proceedings of the 2013 International Conference on Electronics and Communication Systems
[4]
Santini R, Santini P, Danze JM, Le Ruz P, & Seigne M, (2002). Study of the health of peopleliving in the vicinity of mobile phone base stations: Incidence according to distance and sex,Pathology Biology, 50(6), 369-73, 2002 27
[5]
H. Kawai, and K.Ito, “Simple Evaluation method of estimating local average SAR”, IEEE Transactions onMicrowave Theory and Techniques, 52, (8), August 2004, pp.2021-2029.
[6]
ICNIRP, “Guidelines for limiting exposure to time varying electric, magnetic, and electromagnetic fields(up to 300 GHz)”,Health Phys., 74, (4), April 1998, pp.494-522.
[7]
O. P Gandhi, G. Lazzi, and C. M. Furse, “Electromagnetic absorption in the human head and neck for mobile telephones at 835 and 1900 MHz”, IEEE Trans. Microwave Theory Tech., 44,Oct.1996, pp. 1884-1897.
[8]
Y.Okano, K. Ito, I. Ida,and M. Takahashi, “The SAR evaluation method by a combination of thermographic experiments and biological tissue-equivalentphantoms”, IEEE Tran. MTT, 48, (11), Nov. 2000, pp.2094-2103.
[9]
N. Kuster, and Q. Balzano, ”Energy absorption mechanism by biological bodies in the near field ofdipole antenna above 300 MHz”, IEEE. Transaction on Vechicular Technology., 41, (1), Feb.1992, pp.17-23.
[10]
Ghandi., (1990), Biological Effects and Medical Applications of Electromagnetic Energy. Prentice Hall , Englewood Cliffs: NJ.
[11]
Guy A.W. and Chow C.K.(1986), Specific Absorption Rates of Energy in ManModels Exposed to Cellular UHF-mobile-antenna Fields,IEEE Trans on Microwave. Theory and Techniques, vol: MTT-34.
[12]
Jagbir K and A.K. Dhami (2012). Orientation studies of a cell-phone mast to assess electromagnetic radiationexposure level, International Journal of Environmental in Sciences, Vol. 2, No 3, pp 2285-2295.
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