What is Non-Ionizing Radiation? April 6, 2007Posted by healthyself in 0 Hz-3kHz, 000 Hz, 1 GHz- 300 GHz, 1 mm, 100 nm - 400 nm, 3 kHz-300 GHz, 300 GHz, 400 nm - 700 nm, 700 nm, Amplified Signals, Amplitude, Analog, Antennas, Atmospheric Pressure, Blogroll, Bytes, Cable, Cell Masts, Cell Phones, Coherence, Computer Rooms, Cordless Phones, DECT, Distribution, Earth, EEG, EHF, Electrical Components, Electrical Pulses, Electrical Surges, Electrical Wiring, electromagnetic, Electromagnetic Communications, Electromagnetic Field, Electromagnetic Interference, Electromagnetic pollution, Electromagnetic Radiation, Electromagnetic Spectrum, Electromagnetic waves, Electrosensitivity, Electrosmog, ELF, EMF Research, EMF's, EMR, Entropy, Environment, Exposure, Fiber Optic, Frequencies, Hand Portables, Handheld Units, HF, High Frequencies, high voltage transmission lines, Internet, ionizing radiation, Landline, Laptops, LF, Lifestyle, Light, light beam, Long Term Health Risks, Low Frequencies, Magnetic, MCS, MF, MHz, Microwave exposure, Mobile Music, mobile telephones, Non-Thermal Levels, Penetration, Photons, Photosensitive, Pulsed Radiation, Pulses, Pure Tone, QV, Radar, Radians, radiation, Radio Frequency Radiation, Radio Waves, radioprotector, Radios, Research Needed, Resonance, Resonant Frequency, ringing, ringtones, Risk of Disease, Safe Levels, Safety, SAR, Schuman Resonance, SHF, Speakerphones, Spectrum, Telecommunications, Telephony, Transducer, Transfer, transmission, UHF, Ultraviolet, VDT, Visible Light, VLF, W/Kg, W/m2, watts, Wave Front, Waves, Who is Affected?, WiFi, Wired, Wired Phone, Wireless, Wireless Phones, X-Rays.
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The properties and effects of non-ionising radiations are very diverse. For the purpose of this Policy non-ionising radiations include:
Extremely low frequency (ELF) radiation
Electromagnetic radiation with frequencies in the range 0 Hz (static fields) to 3 kHz, including the 50 Hz electric and magnetic fields associated with the domestic mains electricity supply such as in domestic electrical appliances, electricity supply substations and overhead power lines.
Radiofrequency (RF) radiation
Electromagnetic radiation with frequencies in the range 3 kHz to 300 GHz, which is produced by artificial sources such as visual display units and mobile phones.
Microwave (MW) radiation
Electromagnetic radiation with frequencies in the range 1 GHz to 300 GHz, which is produced by artificial sources such as in microwave ovens and by microwave communication devices. (This radiation is now considered part of Radiofrequency radiation.)
Infrared (IR) radiation
Electromagnetic radiation with wavelengths between 700 nm and 1 mm, which is present in sunlight and produced by artificial sources such as electric radiator heaters.
Electromagnetic radiation with wavelengths between 400 nm (blue) and 700 nm (red), which is present in sunlight and produced by numerous artificial sources, including lasers.
Ultraviolet (UV) radiation
Electromagnetic radiation with wavelengths between 100 nm and 400 nm, which is present in sunlight as well as produced by artificial sources such as arc welding and sterilization lamps.
What are Electric and Magnetic Fields? April 6, 2007Posted by healthyself in Blogroll, Definitions, Earth, Electrical Components, Electrical Pulses, Electrical Surges, Electrical Wiring, electromagnetic, Electromagnetic Field, Electromagnetic Radiation, Electromagnetic waves, EMF's, EMR, Environment, Frequencies, High Frequencies, high voltage transmission lines, Hz, LF, Light, light beam, Low Frequencies, Magnetic, MCS, MF, MHz, Microwave exposure, Pulsed Radiation, Pulses, Radar, Radians, radiation, Radio Frequency Radiation, Radio Waves, Resonant Frequency, Safe Levels, Transducer, transmission, UHF, VDT, VLF, W/Kg, W/m2, watts, Wave Front, Waves.
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What is the Electromagnetic Spectrum? September 21, 2006Posted by healthyself in Blogroll, Cell phone safety, Color, Definitions, Electromagnetic Field, Electromagnetic waves, Frequencies, Gamma Rays, Infrared, Light, light beam, Low Frequencies, Magnetic, MHz, Microwave exposure, Oscillate, Photons, Radio Waves, Spectrum, Visible Light.
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“..Electromagnetic radiation can be described in terms of a stream of photons, each traveling in a wave-like pattern, moving at the speed of light and carrying some amount of energy. … the only difference between radio waves, visible light, and gamma-rays is the energy of the photons. Radio waves have photons with low energies, microwaves have a little more energy than radio waves, infrared has still more, then visible, ultraviolet, X-rays, and gamma-rays.”"Actually, the amount of energy a photon has makes it sometimes behave more like a wave and sometimes more like a particle. This is called the “ wave-particle duality” of light. …only in how it behaves. Low energy photons (such as radio) behave more like waves, while higher energy photons (such as X-rays) behave more like particles. …the electromagnetic spectrum can be expressed in terms of energy, wavelength, or frequency. Each way of thinking about the EM spectrum is related to the others in a precise mathematical way. The relationships are:
the wavelength equals the speed of light divided by the frequency
lambda = c / nu” http://imagine.gsfc.nasa.gov/docs/science/know_l2/emspectrum.html
ELF and EMF May Have Potential for Treatment of Vascular Disorders September 19, 2006Posted by healthyself in 16 Hz, Animal Research, arteriole, Beneficial frequencies, Biological Activity, Biological Effects, Blogroll, Cell phone safety, Circulation, Electromagnetic Field, Electromagnetic waves, ELF, Emergency Medicine, EMF Research, Frequencies, Healing, Hz, Interdisciplinary, LF, Low Frequencies, Magnetic, Medical Research, Men's Health, MHz, pressure, radiation, Research Needed, Resonant Frequency, transmission, University, Vibration, Women's Health.
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“Biological effects of extremely low-frequency electromagnetic fields (ELF-EMF) on microcirculation were investigated in vivo by monitoring arteriole diameters in conscious mice. Measurements of blood vessel diameter were monitored 33 min non-stop before during and after exposure with ELF-EMF and every 389 ms blood vessel diameter were calculated….Since vessel diameters exhibit rhythmic variation expressed by vasomotion, for estimation of microcirculatory activity….. with the aim to evaluate possible changes in mean blood vessel diameter as a result of ELF-EMF action.”
“During EMF exposure and post-exposure periods, arteriole diameters increased significantly compared with the pre-exposure period, and the changes were larger during post-exposure. In contrast to sham exposure, vasodilatation of the microvasculature was significantly greater during exposure and post-exposure to 16 Hz EMF. These findings suggest that ELF-EMF may have potential therapeutic use benefit for treating vascular disorders.”
|(1)||Department of Environmental Health, National Institute of Public Health-NIPH, 4-6-1, Shirokanedai, 4-chome, Minato-ku, Tokyo 108-8638, Japan|
|(2)||Department of Medical Physics and Biophysics, Medical University-Sofia, Sofia, 1431, Bulgaria|
Exposure to EMF’s at Work September 10, 2006Posted by healthyself in .03 - 3.7 mG, .5 mG - 4 MG, 1 mG, 2 mG, 27.6 mG, 34.8 mG, 4.4 mG, 5.4 mG, 8.2 mG, 96.0 mG, Blogroll, Cell phone safety, Electrical Surges, Electrical Wiring, Electromagnetic pollution, Electromagnetic waves, Electrosensitivity, Electrosmog, ELF, EMF Research, EMF's, Employees, EMR, Environment, Exposure, Firehouses, Long Term Health Risks, Low Frequencies, Magnetic, Men's Health, Microwave exposure, Police Officers, Pulsed Radiation, radiation, Risk of Disease, Safety, School administrators, transmission, Who is Affected?, Women's Health, Workplace.
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“The EMF exposures for many jobs have not been measured, but the following table shows average exposures to magnetic fields for typical workers who use electric equipment. Exposures during a work shift vary with the strength of the magnetic field, the worker s distance from the EMF source, and the time the worker spends in the field. For comparison, the table also lists worker exposures off the job.”
“Average magnetic field exposures for various types of workers (in milligauss*)”
Average daily exposures Type of worker Median** Range
Workers on the job:
Clerical workers without computers 0.5 0.2 - 2.0 Clerical workers with computers 1.2 0.5 - 4.5 Machinists 1.9 0.6 - 27.6 Electric line workers 2.5 0.5 - 34.8 Electricians 5.4 0.8 - 34.0 Welders 8.2 1.7 - 96.0 Workers off the job (home, travel, etc.) 0.9 0.3 - 3.7
*Magnetic fields are often measured in gauss or milligauss (one thousandth of a gauss = 1 milligauss).
**The median is the middle measurement: half the workers have average daily exposures above this point and half below.”