4th Pediatric Infectious Diseases Conference
 
 
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ISSN 0973 - 0958

News Letter September 2009
Dear Subscriber:
New features on www.pediatriconcall.com for this month:
EXPERT'S OPINION:

Query: I happened to shift into a new residence in Bangalore. Two weeks later, I realized that the house has a cell phone tower kept on the roof of 2nd floor and I live in the ground floor. Do you see any threat to my 4 months baby for any EMF radiation living under this cell phone tower? The roof height may be close 32 feet where the tower is kept.

Answer: Cellular phones operate at the radiofrequency part of the electromagnetic spectrum. This is non-ionizing radiation. Other examples of the non-ionizing part of the electromagnetic spectrum include AM and FM radio waves, microwaves, and infrared waves from heat lamps. Radio waves have too little energy to break the bonds that hold molecules in cells together. Similarly, since RF of this frequency contains relatively low energy, it does not enter tissues. At very high levels of exposure, RF can cause warming of tissues, much as a heat lamp does. The power density inside buildings where a base station is mounted is typically 10 to 100 times lower than the level outside depending on the construction materials of the building. Wood or cement block reduces the exposure level of RF radiation by a factor of about ten. The power density behind an antenna is hundreds to thousands of times lower than in front. Therefore, if an antenna is mounted on the side of a building, the exposure level in the room directly behind the wall is typically well below the recommended exposure limits. Several theoretical considerations suggest that cellular phone towers are unlikely to cause cancer. If you are concerned about the radiation, you can ask for measurements of RF near cellular phone towers to be sure exposures do not exceed recommended limits.

These are questions asked by the users of pediatriconcall. The answers are what the expert has to say. You can also send in your medical query by filling in the "QUERY" on
www.pediatriconcall.com

 Sincerely,
  Pediatric Oncall
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