Potential health effects of exposure to electromagnetic. Ppt blackbody radiation powerpoint presentation free to download id. The use of both light and sound waves in medicine is broad in application and these energy forms can be either thermal or nonthermal, depending on the powerintensity specifications, with. Cell phone radiation, health risk and precautionary principle ppt presentation summary. With the proliferation of cell phones, wireless internet, and personal electronic devices, the ill effects of electromagnetic radiation are a huge concern. Other forms of electromagnetic spectral energy include the various forms of light energy used in lasers and sound energy used in ultrasonic applications. It comes in many different types, although the differences between them are quantitative rather than qualitative. Human exposure to electromagnetic fields emf comes from many different sources and.
Health effects of exposure to emf and 6 july 2009 research needs and methodology to address the remaining knowledge gaps on the potential health effects of emf in the light of newly available information since then, and to give special consideration to areas. Electromagnetic pollution and its health effects on the. In biology it is often a part of the discussion of photosynthesis, the physiology of the eye, and mutagenic sources. Wave model of electromagnetic radiation in the 1860s, james clerk maxwell 18311879 conceptualized electromagnetic radiation emr as an electromagnetic wave that travels through space at the speed of light, c,whichis3x108 meters per second hereafter referred to as m s1 or 186,282. There is still limited data regarding risks of longterm use of. This presentation is intended to help advance knowledge. Ionizing radiation gives off energy by knocking electrons off atoms, which causes the atoms to have a charge.
Electromagnetic spectrum electromagnetic radiation light. The overall data on brain tumour and mobile phone use do not show an effect on tumour risk. The charges on the atomic particles make ionizing radiation unstable and reactive. Emr, or electromagnetic field radiation emf, is the generated byproduct of electricity traveling through electronic devices radiation is classified as either ionizing or nonionizing based on the radiations capacity to ionize atoms and interfere with chemical bonds. Ppt electromagnetic radiation powerpoint presentation.
One of the most methodical treatments of electromagnetic wave propagation, radiation, and scatteringincluding new applications and ideas presented in two parts, this book takes an analytical approach on the subject and emphasizes new ideas and applications used today. Arpansa maintains an australian electromagnetic radiation emr health complaints register. Neuroscientist confirms the danger of electromagnetic. Rf engineers are faced many times with the following two questions. The phrase electromagnetic spectrum is frequently referred to in the study of science. The properties of light and the spectrum absorbtivity emisstivity. Possible effects of electromagnetic fields emf on human. The removal of electrons from an atom uionizing radiation. Also disclosed are the use of the system for treating various conditions and the method of applying the treatment. What are the effects of electromagnetic radiation on our. Em radiation each wavelength of electromagnetic radiation light brings us unique information. The most notable is the blanket of radiofrequency electromagnetic radiation, largely microwave radiation generated for wireless communication and surveillance technologies, as mounting scientific evidence.
Studies were conducted to find out whether the use of electrical devices and equipment endangers human health. Frequency 850 mhz what is the wavelength of a microwave oven. Electromagnetic hypersensitivity powerpoint presented by steve weller at the electromagnetic energy reference group emerg meeting, hosted by the australia radiation protection and nuclear safety agency arpansa on the 20th may 2015. Part one covers fundamentals of electromagnetic wave propagation, radiation, and scattering. Electromagnetic radiation electromagnetic spectrum light 1600 s. At sufficiently high flux levels, various bands of electromagnetic radiation have been found to cause deleterious health effects in people. Light travels through the vacuum of space unlike sound. The energetic particles can be neutral or they can be electrically charged. In addition, we can use fourier analysis to reduce any waveform, no matter how. Possible effects of electromagnetic fields emf on human health 7 lower frequencies and higher frequencies. These assessments will be published as volume 102 of the iarc monographs. Elf fields are oscillating fields and very important for public health because of the widespread use of electrical power at 5060 hz in most countries 1,5. Electromagnetic radiation is a wave, so has a wavelength.
Radiation radio active waste biological effects on animals on plants on humans preventive measures of radiation 2. Particles or rays with sufficient energy to remove electrons from. The term radiation means to give off energy as waves or particles. Nonionizing electromagnetic radiation emf can present many health risks.
May 18, 2017 sound waves and electromagnetic waves ppt download stay safe and healthy. The icnirp guidelines provides establishedadequate protection for the public from e. Health hazards of mobling and computing authorstream. Objects in space send out electromagnetic radiation at all wavelengths from gamma rays to radio waves. Proper evaluation and assessment of possible health effects from long term exposure to if fields are important because human exposure to such fields is. Elf and vlf em radiation emr in the elf and vlf range is both naturally occurring and manmade. Oct 31, 2019 blackbody radiation presented by eric tener what is necessary to understand blackbody radiation. Electromagnetic fields and h u man h ealth world health.
Energy traveling through space is called as radiation. Electromagnetic radiation health complaints register. Invisible energy waves or particles the radioactivity is the property of some atoms to spontaneously give off energy as particles or rays. Expert group on health effects of electromagnetic fields exposure from mobile phones and masts, as well as for power n line fields. Please practice handwashing and social distancing, and check out our resources for adapting to these times. Neuroscientist confirms the danger of electromagnetic radiation. Almost everything we know about the universe comes from the study of the electromagnetic radiation emitted or reflected by objects in space. Download the reporting form electromagnetic radiation. Natural emr includes a background electromagnetic field created by the earth as well as additional emr created by thunderstorms, as well as solar and cosmic activity. May 18, 2017 may 18, 2017 sound waves and electromagnetic waves ppt download stay safe and healthy. These three quantities are related, and any of them may be used to define the type of radiation. View electromagnetic bomb ppts online, safely and virusfree. Radiation is classified as either ionizing or nonionizing based on the radiations capacity to ionize atoms and interfere with chemical bonds.
Research aims and methodology most people are unaware of the risks surrounding them as a consequence of electromagnetic radiation emr. Ppt radiation health effects powerpoint presentation. Dg sanco health information unit brussels, 27 march 2006 emf electromagnetic fields. Studies show that longterm, constant exposure to emf radiation can cause a number of biological health effects. Olle johansson has stepped forward to present evidence from his own research and the research of his peers into the mental and. Cancer institute, department of health and human services. Since the discovery of x rays in late 19th century, the technology of radiation delivery, understanding of tumor biology and radiobiology has grown by leaps and bounds. The most important mechanism for electromagnetic pulse emp production from a nuclear detonation is the ionization of air molecules by gamma rays generated from the explosion.
Electromagnetic radiationintroduction wikibooks, open. Energy can be transported in a stream of energetic particles or in the form of radiations i. Radiofrequency electromagnetic fields iarc working. Possible effects of electromagnetic fields emf on human health.
Intro microwave radiation effects sar limits radiation pattern of cell tower antenna. Electromagnetic wave propagation, radiation, and scattering. The health complaints register collects reports of health concerns related to possible emr field exposures in the range of 0. Ionizing radiation definition, examples, types, sources. A free powerpoint ppt presentation displayed as a flash slide show on id. An electromagnetic radiation therapy system comprises means for emitting divergent electromagnetic radiation having a wavelength between 950 and 1500 nm and being capable of producing, at the site being treated, a radiation intensity of at least 50. World health organization serious health effects like cancer are unlikely from mobile phones and their base stations based upon the consensus view of medical and scientific communities but. Emf radiation is electromagnetic energy that emits from all electronic devices, including cell phones, tablets, and laptops. Best radiation oncologist near me radiation therapy involves the use of ionizing radiation commonly x rays for the treatment of malignant and some benign tumors. No evidence of health effects from exposure to very weak emf.
It is easy to shield a house from electric field generated by nearby power lines but is. Blackbody radiation when matter is heated it emits radiation. According to their frequency and energy, electromagnetic waves can be classified as either ionizing. Electromagnetic radiation emr, or electromagnetic field radiation emf, is the generated byproduct of electricity traveling through electronic devices. Health risks from exposure to electromagnetic radiation emf.
Please practice handwashing and social distancing, and. As the planetary health alliance moves forward after a productive second annual meeting, a discussion on the rapid global proliferation of artificial electromagnetic fields would now be apt. What are the effects of electromagnetic radiation on our health. Health hazards of mobling and computing authorstream presentation. Displaying effect of cell phone radiation powerpoint presentations cell phone tower public 0. The emf project is open to any who member state government, i. Electromagnetic pulse emp september 2003 fact sheet 320090 division of environmental health office of radiation protection what is emp and how is it created. Electromagnetic radiation can be classified into two types.
No evidence of health effects from exposure to very weak emf but be sure the issue of emf. Electromagnetic radiation health complaints register arpansa. What are the effects of radio waves on human health. As the discussion surrounding the dangers of electromagnetic fields emfs has become heated, neuroscientist dr.
Potential health effects of exposure to electromagnetic fields. Sound waves and electromagnetic waves ppt download. Electromagnetic radiation emr on the humans health. Electromagnetic waves are produced by the motion of electrically charged particles. Electromagnetic radiation and human health high frequency.
Undoubtedly, you know that electromagnetic radiation emr is a risky factor for human health, and under some circumstances a lot of health problems can be caused by emr exposure. Light light is a form of energy known as electromagnetic radiation. The project is fully funded by participating countries and agencies. This presentation is designed to explain the negative effects caused by the use of and production of nuclear energy. Electromagnetic waves at low frequencies are referred to as.
Electromagnetic radiation emr basics for remote sensing. Sound waves and electromagnetic waves ppt download sound. These waves are also called electromagnetic radiation because they radiate from the electrically charged particles. Carcinogenicity of radiofrequency electromagnetic fields. Gsk biologicals, novartis vaccines medical association for prevention of war international campaign to abolish nuclear weapons hunters hill inquiry, sydney 4 july 2008. Thermographic change heat generated on the face by 15 minutes of cell phone use due to. Electromagnetic spectrum free download as powerpoint presentation. We deal with both normal and nonnormal angles of incidence. They travel through empty space as well as through air and other substances. Energy electromagnetic waves or particulates uionization.
Sources ofemr sources ofemr human brain power lines 50,60hz induction heating cell phone microwave oven radar incandescent light bulb people radio tower xray machines. In earth and space science electromagnetic radiation is often a part of a. Electromagnetic hypersensitivity powerpoint presentation. In may, 2011, 30 scientists from 14 countries met at the international agency for research on cancer iarc in lyon, france, to assess the carcinogenicity of radiofrequency electromagnetic fields rfemf. Proper evaluation and assessment of possible health effects from long term exposure to if fields are important because human exposure to such fields is increasing due to new and emerging technologies. This information will be particularly interesting to students who have studied electromagnetism already.
The designations employed and the presentation of the material in this publication do not. This editable ppt introduces the electromagnetic spectrum and includes the parts of the electromagnetic spectrum radio, microwave, infrared, visible, ultraviolet, xrays, gamma, the relationship between wavelength, freque. Black body radiation ppt download all about radiation. Electromagnetic applications in biology and medicine. Health effects of radiation exposure linkedin slideshare. It takes you through the cradle to grave lifecycle of nuclear energy, paying particular attention to the social, environmental, and public health impacts of the processes associated with nuclear energy. Health effects of radiation exposure tilman a ruff nossal institute for global health, university of melbourne advisor. Electromagnetic radiation is any form of energycarrying radiation created by the interaction of electric and magnetic fields. Feb 10, 2015 with the proliferation of cell phones, wireless internet, and personal electronic devices, the ill effects of electromagnetic radiation are a huge concern. This resource includes a 15 slide powerpoint presentation and 2 versions of the student notes pages full size and interactive notebook format modified notes also included. Effects of electromagnetic radiation emf pollution is very harmful to our environment.
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