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An overview of the way that electro magnetic fields affect human life

Practically every new invention adds to the pollution. The rate of increase is rising exponentially. This paper provides an overview of electromagnetic fields and its adverse effect on the human body. The proliferation of these technologies in recent years has dramatically increased our exposure to electromagnetic radiation EMRor electromagnetic fields EMF.

While the science on the health impacts of this form of radiation is inconclusive, many people are concerned about how long-term exposure to excessiveEMR may impact human health and nature [17]. The World Health Organization maintains that "no adverse health effects are expected.

Compared to cell phones, radiofrequency EMR exposure from other wireless devices is lower — because other devices are typically located farther away from the body — but in some cases continuous.

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Other wireless devices, such as smart meters, transmit only intermittently. IARC has not drawn any conclusions about an association between cancer and radiofrequency EMR from sources other than cell phones [18].

In 2007, an independent, international collaborative of 14 scientists and public health and policy experts reviewed more than 2000 studies of health effects fromEMR the Bioinitiative project. They concluded, "Chronic exposure to EMF is associated in some scientific studies with increased health risks that vary from impaired learning, headaches, mental confusion, skin rashes, tinnitus and disorientation to a variety of cancers, and neurological diseases like ALS and Alzheimer's.

A smaller number of studies hint at possible environmental impacts of EMR. In one, scientists found that bees refuse to return to their hives when mobile phones are placed nearby, suggesting that EMR may play a role in colony collapse disorder.

Another study linked Wi-Fi exposure to tree leaf damage. The results of these studies are considered preliminary and inconclusive.

  1. This heating effect varies with the power and the frequency of the electromagnetic energy.
  2. For example, touching or standing around an antenna while a high-power transmitter is in operation can cause severe burns.
  3. E, and Veyret B.
  4. The earth's magnetic field causes a compass needle to orient in a North-South direction and is used by birds and fish for navigation.
  5. Electric fields Electric fields arise from voltage.

WHO also identifies and promotes research priorities for radiofrequency fields and health to fill gaps in knowledge through its research agendas. WHO develops public information materials and promotes dialogue among scientists, governments, industry and the public to raise the level of understanding about potential adverse health risks of mobile phones.

It is easy to shield a house from electric field generated by nearbypower lines but is difficult to provide shielding from magnetic field that they generate. The magnetic field can be shielded by burring the transmission lines but the cost is very high.

The long-term exposure of low frequency EMFs may aggravate any existing health problems or diseases and may cause or intensify especially lack or fatigue, irritability, aggression, hyperactivity, sleep disorders and emotional instability. Increasing numbers of individuals are becoming hypersensitive to EMR. EMR exists around power lines, power tools, electric stoves, heaters, boilers, freezers and television sets when in use, extending several feet or yards around the appliance.

What are electromagnetic fields?

Using an electric iron or an electric keyboard or working with handheld power tools can quickly drain our energies. Stray currents and radiating fields can still be emitted from electric wires even if appliances are switched off.

AC electric fields do not disappear when an appliance is switched off, only AC magnetic fields disappear.

  • Cell phones use wireless technologies that work by emitting radio frequency radiation that are transmitted through the antenna in the phone;
  • If current does flow, the strength of the magnetic field will vary with power consumption but the electric field strength will be constant;
  • So is the magnetic field around a bar magnet which can be visualized by observing the pattern that is formed when iron filings are sprinkled around it.

When human body is exposed to electric field, the portions affected are shown in Fig. No significant effect was observed on human body on exposure to magnetic field alone.

But adverse effect is seen on the human body when it is exposed to both electric and magnetic fields.

Following are the biological effects of RF energy: It can be dangerous in case of prolong exposure. This can lead to skin burns, deep burns and heat strokes. The lack of blood flow to cool the cornea can lead to cataracts. Cell phones use wireless technologies that work by emitting radio frequency radiation that are transmitted through the antenna in the phone. When talking on the cell phone, the device and thus its antenna end up right next to the head, letting the radiation from it easily affect the brain.

  • The proliferation of these technologies in recent years has dramatically increased our exposure to electromagnetic radiation EMR , or electromagnetic fields EMF;
  • For example, touching or standing around an antenna while a high-power transmitter is in operation can cause severe burns.

Swedish scientists have found that cordless phones raise the risk of developing cancer. It can be electrical hazards, fire hazards, biological hazards and DNA fragmentation. Strong radiation can induce current capable of delivering an electric shock to persons or animals. It can also overload and destroy electrical equipment. The induction of currents by oscillating magnetic fields is also the way in which solar storms disrupt the operation of electrical and electronic systems, causing damage to and even the explosion of power distribution transformers,[2] blackouts as in 1989and interference with electromagnetic signals e.

Extremely high power electromagnetic radiation can cause electric currents strong enough to create sparks electrical arcs when an induced voltage exceeds the breakdown voltage of the surrounding medium e. These sparks can then ignite flammable materials or gases, possibly leading to an explosion. This can be a particular hazard in the vicinity of explosives or pyrotechnics, since an electrical overload might ignite them.

The best understood biological effect of electromagnetic fields is to cause dielectric heating. For example, touching or standing around an antenna while a high-power transmitter is in operation can cause severe burns. These are exactly the kind of burns that would be caused inside a microwave oven.

  • High voltages are used for the transmission and distribution of electricity whereas relatively low voltages are used in the home;
  • Magnetic fields arise from current flow.

This heating effect varies with the power and the frequency of the electromagnetic energy. A 2009 study at the University of Basel in Switzerland found that intermittent but not continuous exposure of human cells to a 50 Hz electromagnetic field at a flux density of 1mT induced a slight but significant increase of DNA fragmentation in the Comet assay.

It must be tried to minimize electromagnetic pollution, especially while sleeping when the pineal gland is most susceptible. Also one should sleep in the dark or at least eyes must be covered to produce the immune-stimulating hormone melatonin. Preferably all power points in the bedroom should be switched off and all electric leads with 2- prong plugs should be unplugged before going to sleep.

If the head faces a wall with power-points or other electric wiring inside the wall close to the bed then bed should be moved towards the middle of the room.

While using electric blankets, the bed should be warmed beforehand and the plug should be removed before going to bed. It should be tried not to habitually remain within a few meters of a working electric appliance. Fluorescent lighting, watching television, using video games, computers and even electric typewriters and hand-held electric tools should be avoided.

Television sets also emit harmful X-rays so television watching should preferably be as far away as conveniently possible. The field is strongest directly in front and at the back of the television.

Computer monitors apparently have stronger radiations to the sides than to the front.

  1. Tie a long rope to a door handle and keep hold of the free end.
  2. The earth's magnetic field is also a static field. So is the magnetic field around a bar magnet which can be visualized by observing the pattern that is formed when iron filings are sprinkled around it.
  3. Another study linked Wi-Fi exposure to tree leaf damage. Like electric fields, magnetic fields are strongest close to their origin and rapidly decrease at greater distances from the source.
  4. In any battery-powered appliance the current flows from the battery to the appliance and then back to the battery. The lack of blood flow to cool the cornea can lead to cataracts.
  5. Definitions and sources Electric fields are created by differences in voltage.

It is always a good idea to avoid the unnecessary exposure to electromagnetic fields whenever possible. Neurodegenerative diseases, suicide and depressive symptoms in relation to EMF. Bioelectromagnetics2001, Suppl 5, S132-S143. Radiat Res 2003a, 160, 492- 497. E, and Veyret B. Effects of exposure of the ear to GSM microwaves: Int J Audiology 2004, 43, 245-254. Brain tumours and salivary gland cancers among cellular telephone users.

Epidemiology 2002, 13, 356-359. No effects of acute exposure to the electromagnetic field emitted by mobile phones on brainstem auditory potentials in young volunteers. Radiat Res 2002, 157, 183-190. Induction of tamoxifen resistance in breast cancer cells by ELF electromagnetic fields. BiochemBiophys Res Commun2005, 336, 1144-1149.

Study of Electromagnetic Field and Its Effect on Human Body

In-vitro studies of electromagnetic exposure between 300 Hz and 10 MHz. Cell Death Differ 2001, 8, 357-366. Case-control study on cellular and cordless telephones and the risk for acoustic neuroma or meningioma in patients diagnosed 2000-2003. Statement on the "Guidelines for limiting exposure to timevarying electric, magnetic and electromagetic fields up to 300 GHz ", 2009.