Power lines, electrical devices and extremely low frequency radiation what is extremely low frequency elf radiation. Power lines, electrical devices, and extremely low frequency. Some of the natural sources of mf include solar radiation and ultraviolet light. Below are links to downloadable versions of chapter 1 in chinese, french.
Frequency readings one of the reasons that many people purchase the cornet ed88t is that it not only gives you a reading of the rf radiation in terms of signal strength like the acoustimeter did, but will also show you the actual frequency that it is picking up in a range of 100 mhz to 2. Static and extremely lowfrequency elf electric and magnetic fields. Cellphones use radio frequency radiation rfr to transmit signals. When we plug an electrical device to a power socket electric fields are produced due to. Research has focused on possible carcinogenic, reproductive, and neurological effects. Extremely low frequency electromagnetic fields and cancer.
To date, no adverse health effects from low level, longterm exposure to. Rfr used in cellphones is at the lower frequency and lower energy end of the electromagnetic spectrum. Xrays are an example of radiation, but so is the light that comes from the sun and the heat that is constantly coming off our bodies. The measurements of extremely low frequency radiation were carried out with the aid of em556 radiation detector dosimeter. Radiation is the emission or sending out of energy from any source. Neil cherry, lincoln university, new zealand low frequency radiation sources electrical devices. The issue of extremely low frequency elf biological effects is very controversial. Who extremely low frequency fields environmental health. Page dedicated to the environmenatal health criteria monograph n238 on elfs.
Cellphone radio frequency radiation studies niehs nih. The study confirmed the presence of radiation from laptops and monitors. Safety and health topics extremely low frequency elf. Low frequency fields occupy the range from 3 to 3,000 hz, with long wavelength. Lowfrequency electric fields influence the human body just as they influence any other. Extremely lowfrequency magnetic fields and health effects scielo. Effect of electromagnetic waves on human reproduction annals of. Other suggested health effects include cardiovascular, brain and behavior, hormonal and immune system changes. An extremely lowfrequency antenna system as recited in claim 1 wherein said means for exciting each of said conductors with extremely low frequency excitation at a reference phase substantially at the centers of said conductors comprises at least two sources of excitation, means coupling the first of said sources of excitation to one of said. The use of handsfree kits lowers exposure of the brain to less than 10% of the exposure from use at the ear.
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