RF Effects from Cellular Phones versus Tower Antennas

People who do some reading on the subject come across concerns about exposure to cellular energy, and the tendency  is to equate  this as a concern over the antennas on the tower. The reality is that if there is any RF safety  concern  related  phone systems , it is with using the phone itself , not with the energy from  the antennas  on the tower.  The only exception is if anybody  on  the  tower to one or more  of the antennas.
Here are  two statements  that apply to every tower site with cellular antennas :
1. If  anybody hold a cell phone  near ones  head , as opposed to texting, using a headset , or a hands free device , one will absorb an absolute minimum  of 100 times more of RF energy than the maximum  one  could absorb from any tower-mounted  cellular antennas , assuming one  on the ground.
2. If cellular  reception is poor  in ones area , the installation of a cellular  tower or cellular antennas on a roof top / water tank will dramatically  reduce the RF exposure of any one that uses a cellular phone in handhold mode.
Cell phones are programmed to use the minimum  amount of power needed to make good connection. So, when the signal is strong  the phone transmits at no more than 10 % of the power that it uses when the signal is weak.  And when the connection  is poor, people tend to hold the  phone tightly to their  heads so that they can hear better , which further increases their exposure by another factor of 10. So, when a person holding a phone tight to his or her  head with a poor connection will absorb at least 100 times RF energy  than when the phone is held about an one inch away and the signal is strong.
The other point is that children tend to not  use  headsets . For this reason there are restrictions on the use of cellular phones by children in Great Britain. One study showed that children under 20  who use  cellular phones  are five times more likely to get brain cancer than children who do not use cellular phones.

More in next blog.
 Kisalay Mitra ,
 EFCTN .

RF Energy and the Human Body

Much of the confusion  and  concern  over exposure to RF energy comes from confusion over the two forms of radiation that people might encounter.
Think Hiroshima , Nagasaki , Chernobyl , X-rays , and Uranium  and everybody gets concerned . Radioactive materials and X-rays  generate  what is known as  ionizing radiation  , which can be very dangerous ionizing radiation  kills  or damage human cells , its effects are cumulative  and there is no practical minimum . So , continuous exposure to low levels of ionizing radiation can eventually lead to serious health problems. Just getting an x- ray kills or damage millions of  cells in our body. But our body will repair itself   within short period , providing there is no additional exposure . However , the person  giving you the X-ray has to be very careful to get behind  the lead in the door so that they don't get exposed. This exposure  would be repetitive and cause  cumulative  effects.
In contrast, radio frequency energy and the energy from most of the light frequencies are forms of  non-ionizing radiation. This form of energy can heat  tissue  when it is concentrated enough and is the principle behind  the common microwave oven. Exposure to  very tiny amounts of RF energy has much less impact on us  than if  the temperature in the room we are in were to change by a small  fraction to over exertion  degree. Problems occur.
of a  with exposure to RF energy only when it is so concentrated that our body has a problem dealing with the excess heat. The effects are very similar .
K Mitra 
more next blog
EFCTN

RF Safety Issues with Celluar Towers

As per the opinion of  RF safety Solutions expert -  which is stated below .

The major concern over exposure  to RF energy  is heating  of the human body. Workers who climb cellular  towers and get very close to cellular and other wireless services antennas must take care not to be exposed to excessive levels of RF energy , which is the reason that most  companies  require that workers who climb towers complete RF safety training. This is where expert  explain  to the  readers  the danger areas around such antennas . As per the opinion of  expert  " You are perfectly  safe  and  can remain in any area providing that the bottom of the antenna is at least 2 feet above your head. "
Cellular antennas  have extremely little energy  directed downward  - that would simply be a waste  of energy . Once the energy is just few feet from the antenna , it begins to spread out in two dimensions , so the energy level drops off dramatically  with distance . The energy  level 100 feet from an antenna is only  1 percent of the  energy  level 10 feet  from the antenna.
I do not agree fully .

K . Mitra
EFCTN.
More in next Blog.



 

Why Children absorb more Microwave ( RF ) Radiation than Adults :

With New Year Greetings - 2015

Important  for our Children's health               

The  thing that Concerns  me most about EMFs is what  we are doing to our children .
 I have grand kids , they are growing  up fast.
 I still worry  what they are being exposed  to and when  I see small children  using and playing cell phones and  I-Pad . I do find it distressing. It's so important that people be made aware of the dangers , and it's important  that they  know what to do about them. An  excellent  research paper recently published by Lloyd Mergan  entitled " why children  absorb  more microwave radiation than adults ".  The consequences  - It's a detailed study  but here's a summary  of  the studies  findings / r recommendation -
1. Children absorb  greater amount  of microwave radiation ( MWR ) than adults,
2. MWR is a class 2B ( possible ) carcinogen as is carbon black , carbon tetrachloride , chloroform, DDT, lead  , nickel , diesel fuel  and gasoline. It seems  clear  that we would  not expose children  to these other agents , so why  would we expose  children  to microwave radiation.
3. Fetuses  are even  more vulnerable than children. Therefore pregnant woman should avoid exposing  their  fetus  to microwave  radiation.
4. Adolescent girls  and woman  should not place  cell phones  in their bras  or in hijabs.
5. Cell phone manual warning  make clear an over exposure problem exists.
6. Wireless devices  are radio transmitters , not toys , selling toys  that  use them should be banned.
7. Govt. warning have been used  but most of the public are unaware  of such warnings.
8. Exposure limits are inadequate and should be revised such that they are adequate.

Lets take resolution in 2015 - Microwave Radiation and Electro Magnetic Radiation Free Environment  -

,
K. Mitra
EFCTN
more in next blog.