سنجش میزان امواج الکترو‌مغناطیس ناشی از آنتن‌های BTSدر برخی مناطق مسکونی شهرکرج

نویسندگان
فاطمه اکبری
ثمر مرتضوی
گروه محیط زیست، دانشکده منابع طبیعی و محیط زیست، دانشگاه ملایر، ملایر، ایران
چکیده
مقدمه

با توجه به پیشرفت تکنولوژی و ارتباطات و گسترش سیستم­های مخابراتی مانند تلفن همراه در سطح جهان، میزان استفاده از آنتن­های BTS در سطح شهر­ها رو به افزایش است. با توجه به خطرات این امواج بر سلامت انسان، هدف از مطالعه حاضر بررسی میزان انتشار امواج الکترو­مغناطیس اطراف آنتن­های BTS مناطق مسکونی شهر کرج است.

مواد و روش­ها

با پایش­ میدانی تعداد 57 ایستگاه در شهر کرج انتخاب شد. سنجش با 3 تکرار در فاصله‌های 5، 10، 30 و50 متر توسط دستگاه کالیبره شدهTES-92 ساخت کشور تایوان صورت گرفت. آنالیز آماری نتایح برای مقایسه فواصل و استاندارد با نرم افزار SPSS انجام شد.

یافته­ها

نتایج حاصل نشان داد با افزایش فاصله از آنتن­ها مقدار چگالی توان امواج الکترو­مغناطیس کاهش می­یابد. علاوه بر این در فاصله 10 متر از دکل­ها بیشترین میزان چگالی امواج اندازه‌گیری با میانگین 222/10 بدست آمد. تفاوت معنی­داری در همه فاصله­ها بجز 5 و 30 متر وجود داشت (05/0>p) و میزان نتایج کمتر از استاندارد ICNIRPبود.

نتیجه­گیری

عامل فاصله مهم­ترین ویژگی در تعیین میزان شدت چگالی امواج الکترو­مغناطیس است بنظر می­رسد علت زیاد بودن شدت امواج الکترو­مغناطیسی در فاصله 10 متر نسبت به 5 متر ایجاد حالت سایه و عوامل محیطی موقعیت آنتن­ها است. نتایج کلی حاکی از شرایط ایمن میزان امواج الکترومغناطیس ناشی ازآنتن­های BTS در شهر کرج است که جهت حفظ شرایط موجود به نظارت بر نصب آنتن­های جدید در فواصل امن توصیه می­گردد.
کلیدواژه‌ها
آنتن BTS
امواج الکترو‌مغناطیس
ICNIRP
کرج
مسکونی

عنوان مقاله English

Measurement of electromagnetic waves induced by BTS antennas in some residential areas of Karaj

نویسندگان English

Fatemeh Akbari
Samar Mortazavi
Department of Natural Resources and Environment, University of Malayer Malayer, Iran
چکیده English

Introduction

With the advances in technology and communications, telecommunications and wireless systems, mobile phones worldwide and the number of BTS antennas are increasing in cities. Due to the dangers of these waves on human health, the purpose of this study was to investigate the electromagnetic radiation emission around BTS antennas in Karaj residential areas.

Materials and Methods

By field monitoring, 57 stations in Karaj were selected. Three replicates were measured at 5, 10, 30, and 50 m intervals by a TES-92 calibrated instrument made by Taiwan. Statistical analysis was performed to compare the standard and the waves at intervals with SPSS software.

Results

The results showed that as the distance from the antennas increased, the power density of the electromagnetic waves decreased. In addition, within 10 meters of the masts, the highest measured wave density was obtained with an average of 10.2222. There were significant differences at all distances except 5 and 30 meters (p <0.05) and the results were lower than the ICNIRP standard.

Conclusion

The distance factor is the most important characteristic in determining the density of electromagnetic waves. It seems that the magnitude of the electromagnetic waves at 10 meters distance is more than 5 meters due to shading and environmental factors. The overall results indicate the safe conditions of electromagnetic waves caused by BTS antennas in the city of Karaj, which is recommended to monitor the installation of new antennas at safe distances to maintain the existing conditions.

کلیدواژه‌ها English

BTS
Electromagnetic Waves
ICNIRP
Karaj
Residential
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