effects of electromagnetic radiation.ppsx

8/13/2019 Effects of Electromagnetic Radiation.ppsx

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Johann S. Miranda

Luis G. Rosado T Jhensen Santiago Bahamu


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Electromagnetic radiation is made when an atomabsorbs energy.

The absorbed energy causes one or more electronsto change their locale within the atom.

When the electron returns to its original position,an electromagnetic wave is produced.


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Depending on the kind of atom and the amount of

energy, this electromagnetic radiation can take the

form of heat, light, ultraviolet, or other

electromagnetic waves.


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We are bombarded by low levels of radiation from

all directions. There are so many sources until

reducing them would mean major changes in most

of the things that we do daily, most without a

second thought.


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Medical radiation comes in the form ofdiagnostic x-rays and other tests, as well asfrom radiation therapy. Radiation therapy iscurrently used to treat some types of cancerand involves dosages many thousand timeshigher than those used in diagnostic x-rays.


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Medical tests such as X-ray, magnetic resonanceimaging (MRI), mammogram, ultrasound, etc., andmedical treatments such as diathermy, chiropracticlasers and pacemakers are some of the everydayhuman made sources of EMF's to which we're

exposed.


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The effect from the radiation dose received duringa diagnostic X ray that cannot be ruled out is aslightly increased risk of cancer. This risk increaseswith the magnitude of the dose and with thenumber of procedures.


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A computed tomography (CT) scan is animaging method that uses x-rays tocreate pictures of cross-sections of the body.


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Risks of CT scans include: Allergic reaction to contrast dye Being exposed to radiation


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CT scans expose you to more radiation thanregular x-rays.

Having many x-rays or CT scans over timemay increase your risk for cancer.

However, the risk from any one scan is small.


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Cancer, which occurs when normal cell division isdisrupted and runs amok. Some scientists believethe original damage is usually caused bychemicals or ionizing radiation like X-rays, andthen a magnetic field provides a nurturingenvironment for cancer cells to proliferate. A1990 first version of an Environmental ProtectionAgency report designated EMFs in the same classas cigarettes, as a class B1 carcinogen.


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Ultrasound and Magnetic resonanceimaging (MRI) do not use X rays or radioactivity.Ultrasound is particularly useful for examiningthe pelvis and abdomen, particularly inpregnancy and also for the breast, testes and softtissues of the neck and limbs.MRI is increasingly used for scanning the head,spine and joints.


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An MRI (magnetic resonance imaging) scan is animaging test that uses powerful magnets and radiowaves to create pictures of the body.

It does not use radiation (x-rays).


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MRI does not use ionizing radiation.

No side effects from the magnetic fields andradio waves have been reported.


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Ionizing radiation is high-frequency radiation that has enoughenergy to remove an electron from (ionize) an atom or molecule.Ionizing radiation has enough energy to damage the DNA incells, which in turn may lead to cancer. Gamma rays, x-rays,some high-energy UV rays, and some sub-atomic particles suchas alpha particles and protons are forms of ionizing radiation.

Non ionizing radiation is low-frequency radiation that does no

have enough energy to remove electrons or directly damageDNA. Low-energy UV rays, visible light, infrared rays,microwaves, and radio waves are all forms of non-ionizingradiation. Aside from UV rays, these types of radiation are notknown to increase cancer risk.


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The MRI medical study is a study that has notsufficient evidence to be said that is harmfulfor the human health.


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Exposure to electromagnetic fields is not a newphenomenon. However, in the twentieth centuryenvironmental exposure has increased continuously as thegrowing electricity demand, ever-advancing technologiesand changes in social behavior have created more andmore artificial sources of electromagnetic fields. Everyoneis exposed to a complex mix of weak electric andmagnetic fields, both at home and at work, fromproducing the generation and transmission of electricity,household appliances and industrial equipment, to thoseproduced by telecommunications and broadcast radio andtelevision.


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Camilla Rees and Magda Havas, Public Health SOS: The Shadow Side of the Wireless Revolution

Sellman, Sherrill. "The Electro-Pollution Solution," totalhealth magazine , March/April 2007 Vol. 29 47

Ruediger HW. Genotoxic effects of radiofrequency electromagnetic fields. Pathophysiology. 2009; 16(2): 89-102.

California Council on Science and Technology. (Internet). (2011). Health Impacts of Radiofrequency Exposurefrom Smart Meters. Obained at: http://www.ccst.us/publications/2011/2011smartA.pdf

IAEA (https://rpop.iaea.org/RPOP/RPoP/Content/InformationFor/Patients/patient-information-x-rays/#PIG_FAQ04 )

Science Daily, October 16, 2000; Electromagnetic Fields Affect Human Cells; obtained at:http://www.sciencedaily.com/releases/2000/10/001016073704.htm
http://www.ccst.us/publications/2011/2011smartA.pdfhttps://rpop.iaea.org/RPOP/RPoP/Content/InformationFor/Patients/patient-information-x-rays/https://rpop.iaea.org/RPOP/RPoP/Content/InformationFor/Patients/patient-information-x-rays/http://www.sciencedaily.com/releases/2000/10/001016073704.htmhttp://www.sciencedaily.com/releases/2000/10/001016073704.htmhttps://rpop.iaea.org/RPOP/RPoP/Content/InformationFor/Patients/patient-information-x-rays/https://rpop.iaea.org/RPOP/RPoP/Content/InformationFor/Patients/patient-information-x-rays/https://rpop.iaea.org/RPOP/RPoP/Content/InformationFor/Patients/patient-information-x-rays/https://rpop.iaea.org/RPOP/RPoP/Content/InformationFor/Patients/patient-information-x-rays/http://www.ccst.us/publications/2011/2011smartA.pdf

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