cell phone

Topics: Mobile phone, Mobile phone radiation and health, Base station Pages: 5 (1329 words) Published: June 9, 2015
Name: Bayu Eko Prasetyo
Nim: 130210401097

Health concerns over mobile phone use

Mobile phones communicate with base stations using radiofrequency (RF) radiation. If RF radiation is high enough, it has a ‘thermal’ effect, which means it raises body temperature. There are concerns that the low levels of RF radiation emitted by mobile phones could cause health problems such as headaches or brain tumors. In addition, the devices those using RF radiations are safe. Such as: Radio had used RF radiation since 1893 and television had used RF radiation since 1939, and cell phone also uses RF radiation. So, cell phone absolutely safe.

Research into mobile phones and health risks

Intensive international research has found no conclusive or convincing evidence that mobile phones are damaging to health in the short or long term. However, in May 2011, the World Health Organization (WHO) classified RF radiation as ‘possibly carcinogenic for humans, based on an increased risk for glioma, a type of brain cancer’. The release of this WHO statement prompted many people to call for a 'precautionary approach' to mobile phone use. Research is ongoing. Reviewed studies have found that cell phone use is not associated with an increased risk of brain tumor. The another study such as in October, 20, 2011, July 27, 2012 and 2001-2013 have similarly concluded that there is no association between cell phone use and the development of brain tumors. The Federal Communication Commission (FCC), Government Accountability Office (GAO), and the Food and Drug Administration (FDA), have all conclude that there is no evidence in the scientific that cell phone cause brain tumors or other health problems.

Radiation in relation to mobile phone use

Radiation is a combination of electrical and magnetic energy that travels through space at the speed of light. It is also referred to as electromagnetic radiation (EMR). The Federal Communication Commission (FCC) indicates that cell phones are permitted to emit. The limit is measured as the amount of radiation absorbed by a user and is known as the specific absorption rate (SAR). In 1996, the SAR for cell phone radiation was set a maximum of 1,6 watts of energy absorbed per kilograms of body weight.

Radiation is classified into two broad groups:
ionising radiation (IR) – which is capable of causing changes in atoms or molecules in the body that can result in tissue damage such as cancer. Examples of IR include x-rays and gamma rays non-ionising radiation (NIR) – which doesn’t cause these changes, but can prompt molecules to vibrate. This can lead to rises in temperature, as well as other effects. Examples of NIR include ultraviolet radiation in sunlight, visible light, light bulbs, infrared radiation, microwave energy and radiofrequency energy. How the mobile phone system works

The mobile phone system works like a two-way radio, and includes the individual handset and the base stations. Base station antennae are mounted high off the ground (on a tower or roof) to get the widest coverage. A mobile phone has a radio receiver and a transmitter. 

When you make a call, your phone uses radiofrequency (RF) radiation via its antenna to ‘talk’ to a nearby base station. Once the base station has received your signal, your call is directed through the landline phone system. 

Mobile phone base stations emit relatively constant levels of RF radiation. The handsets emit levels of RF radiation that vary depending on three things: how long you use the phone
how close you hold the phone to your body
how close you are to the base station. If the link to the base station is weak, the handset increases its radiation level to compensate. The levels of RF radiation from the handset, to which your head is exposed, are around 100 to 1,000 times more intense than exposure from base stations.

Australian mobile phone system regulations

It is estimated that the RF radiation from a mobile phone held...
Continue Reading

Please join StudyMode to read the full document

You May Also Find These Documents Helpful

  • cell phones Essay
  • Cell Phone Radiation Essay
  • Mobile Phones Essay
  • Cell Phones Do Not Cause Any Health Problems Essay
  • Cell Phone Radiation Essay
  • Essay about Are cell Phones a Health Hazard?
  • Cell Phones Essay
  • Cell Phone Radiation Essay

Become a StudyMode Member

Sign Up - It's Free