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Effect Of Radio Frequency Essay

2355 words - 10 pages

Effect of Radio Frequency Produced
by Mobile Phones
Introduction:
There is increasing concern about the risk of radio frequency emitted by cell phones, I argue that the radio frequency emitted by cell phones cannot damage human bodies in short term and people do not need to worry about the risk of cell phone radiation. Nowadays, mobile phone is a dominant component of modern telecommunications technology and it has become more and more popular and necessary in modern life. Nevertheless, the widespread use of mobile phones has given rise to a growing concern on the possible adverse health effects of the radiation they emit. Cell phones constitute the main source of radio frequency ...view middle of the document...

The distribution of the induced fields depends on the design of the phone, its position at the head and the brain anatomy (tissue distribution and dielectric parameters) (WHO 2010). Thus, the radio reference is the most important substance which is studied most in the research of cell phones. The radio frequency is one of several energy forms and it is a slow, low-energy moving wave of EMF and is believed to do little harm, unlike higher energy X-rays. The amount of RF absorbed if the cell phone is in contact with the head is measured in terms of specific absorption rate (SAR). The Federal Communications Commission has determined it is safe to set phones at RF emission up to 1.6 watts per kilogram of body tissue. Phone companies are also required by law to state the specific absorption rate on its packaging so radio frequency can be determined. For example, the at-ear rating for voice calls for the Apple 4, one of the most popular phones available, is 1.17 watts per kilogram which is below the guideline.(FCC 2013)
Short-term effect
A large number of studies have been performed over the last two decades to assess whether mobile phones pose a potential health risk. To date, no adverse health effects have been established as being caused by mobile phone use.
First of all, it is important to know whether the radio frequency of your phone will damage your bodies. There is a study regarding electromagnetic radiation exposure generated by mobile phone of University Dunarea. They recorded the value of the power density in the vicinity of the mobile phones during incoming and outgoing call models and receiving and sending message modes. Power density is another measure of the energy flowing from a source through a unit area normal to the direction of propagation in a unit time. It is a variable which is measured how much radio reference is transferred through cell phones to other substance (Lucia MARICAa and Luminita MORARUb 2010). They conducted the study on 11 different phone models such as N4 SE1 (3G system) and N7 S1 (2G system). They recorded the value of power density of each phone and compared it to the guideline of The Global Focus for Non-ionizing Radiation Protection (ICNIRP). ICNIRP basic restrictions for power density for frequencies between 10 and 300 GHz, in case of exposure to general public are 10 W/m2. We can see from the figure that all values range between 1,827 mW/m2 and 0,087 mW/m2 which were bellow ICNIRP's recommendations.

It shows that most cell phone exposure is not exceed the Federal Communication Commission guideline which means most cell phones are safe for human body. As well, the 3G modes phone released less power density than the 2G modes cell phone which illustrate the fact that manufactures of cell phone has lowered the specific absorption rate value.
Someone may also concern about the use of mobile phones to children and adolescents because they have thinner skulls what enhance radiation penetration. In 2006...

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