Teoman KARADAĞ, Teymuraz ABBASOV, Müge KARADAĞ OTLU

Measuring, evaluating, and mapping the electromagnetic field levels in Turgut Ozal Medical Center building and environment

Amaç : Yılda 500.000in üzerinde hastanın ziyaret ettiği İnönü Üniversitesi Turgut Özal Tıp Merkezinin, 5Hz-8GHz frekans aralığındakielektromanyetik alan kaynaklarının hastane yerleşkesindeki seviyelerinin ölçülmesi ve değerlendirilmesi.Yöntem ve Gereçler: Tıp Merkezine dış kaynaklardan etkiyen yüksek frekans elektromanyetik alanların etkilerinin belirlenmesi için 100kHz-8GHz ve GSM & 3G frekanslarında ölçüm alan iki adet Wavecontrol MonitEM sürekli elektromanyetik alanları izleme istasyonu kullanılmıştır.Tıp Merkezi yerleşkesine sınır olan şalt sahası ve yüksek gerilim enerji nakil hattının elektik alan etkilerinin belirlenmesi için 5Hz-100KHzfrekanslarında ölçüm alan bir adet Narda EHP-50D alçak frekans sürekli elektromanyetik alanları ölçüm cihazı kullanılmıştır. Tıp Merkeziiçerisinde anlık elektromanyetik alanların belirlenmesi için 10Hz-3KHz, 100KHz-8GHz, GSM & 3G frekanslarında ölçüm problarına sahipWavecontrol SMP Meter cihazı kullanılmıştır. Bu etkiyi oluşturan kaynakların frekansları AAronia Spectran HF-60105 ile belirlenmiştir.Bulgular: Tıp merkezi içerisindeki elektromanyetik alan seviyesi değerleri dış elektromanyetik kaynaklardan değil; hastane içerisindekiyüksek frekansta çalışan sistemlerden kaynaklanmaktadır.Sonuç: Tıp merkezinin iç ve dış mekânlarını kapsayan, 5Hz-8GHz frekans aralığındaki, anlık ve sürekli elektromanyetik alan ölçümsonuçlarına göre ulusal ve uluslararası standartların üzerinde herhangi bir değer ölçülmemiştir.

Turgut Özal Tıp Merkezi binası ve çevresinde elektromanyetik alan seviyelerinin ölçülmesi, değerlendirilmesi ve haritalanması

Objectives: To take measurements for electromagnetic field levels in the range of 5Hz-8GHz frequency at Turgut Ozal Medical Center,Inonu University, a medical center visited by over 500.000 patients every year, and analysing the results. Material and Methods: Two Wavecontrol MonitEM, continuous electromagnetic field measurement stations have been used to observethe values of electrical field levels at 100kHz-8GHz and GSM and 3G frequencies inside and outside the medical center in different times ofthe day. We used Narda EHP-50D device for continuous electromagnetic field measurements to observe the values of the electrical fieldlevels around the medical center, from the building out towards the nearby switchyard, and high voltage power transmission lines in arange of 5HZ-100kHz frequency. We also employed a Wavecontrol SMP Meter electromagnetic field measurement device to observe theelectrical field level values at 10Hz-3KHz, 100KHz-8GHz and GSM and 3G frequencies. The source frequencies were measured by AaroniaSpectran HF-60105.Results: The high electromagnetic field levels within the medical center are caused by the systems operating at high frequencies used,again, within the medical center, and not by the external electromagnetic sources.Conclusion: As a result of instant and continuous electromagnetic field measurements at 5Hz-8GHz frequencies in the interiors andexteriors of the medical center, none of the values we have measured was over national and international standards.

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1. Silberberg JL. Performance degradation of electronic medical devices due to electromagnetic interference. Compliance Engineering 1993;10:1-8.
2. Food and Drug Administration, FDA MDS-201-0004, Electromagnetic Compatibility Standard For Medical Devices. U.S. Department of Health Education and Welfare Public Health Service. Bureau of Medical Devices October 1979.
3. Silberberg JL. What can/should we learn from reports of medical device electromagnetic interference? 21st Canadian Medical and Biological Engineering Conference Montreal, Canada: 1995;1-10.
4. Boisvert P, Segal B, Pavlasek T, Retfalvi S, Sebe A. Preliminary Survey of the Electromagnetic Interference Environment in Hospitals. IEEE International Symposium on Electromagnetic Compatibility 1991;214-9.
5. Vlach P, Segal B, Pavlasek T. The Measured & Predicted Electromagnetic Environment at Urban Hospitals. In IEEE International Symposium on Electromagnetic Compatibility 1995;4-7.
6. Riederer M, Lauer O, Fahrni P, Vahldieck R, Froblich J. Characterization of the electromagnetic environment in a hospital measurements procedure and results. IEEE EMC Society Newsletter 2010;224:50-6.
7. Hutter HP, Moshammer H, Wallner P, et al. Subjective symptoms, sleeping problems, and cognitive performance in subjects living near mobile phone base stations. Occup Environ Med. 2006;63:30713.
8. Franke H, Ringelstein EB, Stögbauer F. Electromagnetic fields (GSM 1800) do not alter blood-brain barrier permeability to sucrose in models in vitro with high barrier tightness. Bioelectromagnetics 2005;26:529-35.
9. Kuribayashi M, Wang J, Fujivara O, et al. Lack of effects of 1439 MHz electromagnetic near field exposure on the blood-brain barrier in immature and young rats. Bioelectromagnetics 2005;26:578-88.
10. Schüz J, Böhler E, Berg G, Schlehofer B, Hettinger I, Schlaefer K, Wahrendorf J, Kunna-Grass K, et al. Cellular Phones, Cordless Phones, and the Risks of Glioma and Meningioma (Interphone Study Group, Germany). Am J Epidemiol. 2006;163:51220.
11. Santini R, Santini P, Danze JM, et al. Symptoms experienced by people in the vicinity of base stations: Incidences of distance and sex. Pathol Biol (Paris). 2002;50:36973.
12. Navarro EA, Segura J, Portoles M, et al. The microwave syndrome: a preliminary study in Spain. Electromagnetic Biology and Medicine 2003;22:1619.
13. Oberfeld G, Navarro E, Portoles M, et al. The microwave syndrome-further aspects of a Spanish study. 3rd International Workshop on Biological Effects of Electromagnetic Fields. Kosova: 2004;29.
14. Abdel-Rassoul G, El-Fateh OA, Salem MA, et al. Neurobehavioral effects among inhabitants around mobile phone base stations. Neurotoxicology 2007;28:43440.
15. Beekhuizen J, Vermeulen R, Kromhout H, Bürgi A, Huss A. Geospatial modelling of electromagnetic fields from mobile phone base stations. Sci Total Environ 2013;445446:2029.
16. Hanada E. The electromagnetic environment of hospitals: how it is affected by the strength of electromagnetic fields generated both inside and outside the hospital. Ann Ist Super Sanita 2007;43:208-17.
17. Álvarez J. Measurement and control of extremely low frequency magnetic field in hospitals of Madrid community. Doctoral thesis (in Spanish), Universidad de Alcalá, Spain 1998.
18. Spyropoulos B, Glotsos D, Batistatos D, Marneris I. Creating an Electromagnetic Interference risk distribution map in the modern Hospital. IEEE EMBS 23rd Annual International Conference, 25-28 October, Istanbul, Turkey: 2001;4:3989- 42.
19. Kılıç MA, Çerezci O, Çevik Ö, Kalkan T. Cerrahpaşa Tıp Fakültesinin Elektromanyetik Alan Haritası. EMANET 2011, Istanbul, Türkiye: 2011;1:247-50.
20. Karadağ T, Abbasov T. Elektromanyetik alanların MonitEM sistemi ile sürekli ölçülmesi ve izlenmesi. 2.Ulusal EMC Kongresi, Işık Üniversitesi, Istanbul, Türkiye: 2013.http://www.emcturkiye2013.org/EMCProgram.rar.
21. Karadağ T, Özdemir AR, Abbasov T. İnönü Üniversitesi Yerleşkesinde Dönemsel Elektromanyetik Kirlilik Ölçüm Değerleri ve Haritaları. EMANET 2013, Istanbul, Türkiye: 2013;2:12.
22. Firengiz A, Kavas A. Cep Telefonlarından Yayılan Elektromanyetik Radyasyon Ölçümleri ve Maruz Kalma Standartlarının Değerlendirilmesi.http://www.istanbul.edu.tr/eng/cevre/st atic/sites/default/files/aktulmakale.pdf