Radiofrequency waves ‘possibly carcinogenic to humans’ Whether this is a cause for concern is a matter of ongoing debate, reignited by the arrival of 5G. High doses of RF-EMFs can lead to a rise in the temperature of the exposed tissues, leading to burns and other damage.īut mobile devices emit RF-EMFs at low levels.
The most well-established biological effect of RF-EMFs is heating.
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Radiofrequency EMFs (RF-EMFs) include all wavelengths from 30 kilohertz to 300 GHz.įor the general public, exposure to RF-EMFs is mostly from handheld devices, such as cell phones and tablets, as well as from cell phone base stations, medical applications, and TV antennas. These are types of ionizing radiation, which mean that they carry sufficient energy to break apart molecules and cause significant damage to the human body. These low-frequency waves, together with radio waves, microwaves, infrared radiation, visible light, and some of the ultraviolet spectrum - which take us into the megahertz (MHz), GHz, and terahertz spectra - make up what is known as nonionizing radiation.Ībove this lie the petahertz and exahertz spectra, which include X-rays and gamma rays.
Power lines operate between 50 and 60 Hz, which is at the lower end of the spectrum. This term denotes the number of cycles per second. Together, these produce EMFs.Įlectromagnetic radiation exists as a spectrum of different wavelengths and frequencies, which are measured in hertz (Hz). Magnetic fields are created only when electric currents flow. In this Spotlight, we look at what electromagnetic radiation is, how it can impact our health, the controversy surrounding radiofrequency networks, and what this means for the advent of 5G technology.Īn electromagnetic field (EMF) is a field of energy that results from electromagnetic radiation, a form of energy that occurs as a result of the flow of electricity.Įlectric fields exist wherever there are power lines or outlets, whether the electricity is switched on or not. In the United States, the Federal Communications Commission has auctioned off the first bandwidth - 28 gigahertz (GHz) - that will form the 5G network, with higher bandwidth auctions scheduled for later this year.īut what does 5G have to do with our health? The mainstay of 5G technology will be the use of higher-frequency bandwidths, right across the radiofrequency spectrum.
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With promises of faster browsing, streaming, and download speeds, as well as better connectivity, 5G may seem like a natural evolution for our increasingly tech-reliant society.īut beyond allowing us to stream the latest movies, 5G has been designed to increase capacity and reduce latency, which is the time that it takes for devices to communicate with each other.įor integrated applications, such as robotics, self-driving cars, and medical devices, these changes will play a big part in how quickly we adopt technology into our everyday lives. The term 5G refers to the fifth generation of mobile technology.
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