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   Mobile Phones by Ilka Bradshaw

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A global study on the effects of mobile phones suggests that long-term mobile phone use can increase the user's risk of developing cancer. A 10-year-long investigation by the World Health Organisation studied 12,800 people in 13 different countries between 2000 and 2004. It found that people who used mobile phones for over 10 years or more ran "a significant increased risk" of developing certain types of brain tumour.

 

However, despite this recent study and other previous research suggesting mobile phones may be linked to health issues,


many scientists disagree with the findings. Experts, consumers, pressure groups and mobile phone operators continue to argue fiercely over the suggested links between mobile phones and cancer. But we do now know that different types of mobile phones emit different levels of radiation. And many people want to see these radio wave readings advertised as prominently as possible.  

Scientists record the radiation from a phone as the specific absorption rate (or "SAR") at which head tissue takes in radiation. Put simply, the higher the reading, the more radiation the phone emits. The European guideline for maximum radiation exposure is 2W/kg in 10g of body tissue. Fortunately, most mobile phones fall well within the safety guideline.

However, Professor Alan Preece of Bristol University in the UK believes that no one yet knows the impact of low level exposure from phone radiation over a lifetime. Professor Preece argues that there is no proof to suggest that low level of radiation is carcinogenic:  "Research is hindered by a lack of lifetime human case studies. Instead, theories have to be proven on laboratory animals - the evidence of which is conflicting and confusing".

 


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Glossary


Radiation (n)
a form of energy that can harm living things.

 

Exposure (n)
the state of being exposed to someone or something that is harmful.

 

Carcinogenic  (adj)
likely to cause cancer.


  Last Updated ( Thursday, 11 February 2010 15:58 )