WiFi, Bluetooth ® devices, and smart meters.Transmitting signals from cordless telephones, cell phones and cell phone towers, satellite phones, and 2-way radios.Broadcasting radio and television signals.The earth itself – most radiation from the earth is infrared, but a tiny fraction is RF.People can be exposed to RF radiation from both natural and man-made sources. Although RF radiation is not thought to cause cancer by damaging the DNA in cells the way ionizing radiation does, there has been concern that in some circumstances, some forms of non-ionizing radiation might still have other effects on cells that might somehow result in cancer. This can lead to burns and body tissue damage. If RF radiation is absorbed by the body in large enough amounts, it can produce heat. Visible light is another type of non-ionizing radiation. RF radiation has lower energy than some other types of non-ionizing radiation, like visible light and infrared, but it has higher energy than extremely low-frequency (ELF) radiation. Non-ionizing radiation does not have enough energy to remove electrons from an atom. Radiofrequency (RF) radiation, which includes radio waves and microwaves, is at the low-energy end of the electromagnetic spectrum. This can damage the DNA (genes) inside of cells, which can sometimes result in cancer. These rays, as well as some higher energy UV radiation, are forms of ionizing radiation, which means they have enough energy to remove an electron from (ionize) an atom. It ranges from extremely low frequencies (such as those from power lines) to extremely high frequencies (x-rays and gamma rays), and includes both non-ionizing and ionizing radiation.Įxamples of high-energy radiation include x-rays and gamma rays. The electromagnetic spectrum illustration below shows all of the possible frequencies of electromagnetic energy. This is sometimes referred to as the electromagnetic spectrum. Radiation exists across a spectrum from very low-energy (low-frequency) radiation to very high-energy (high-frequency) radiation. But there are other types of radiation that act differently. When talking about radiation and cancer, many people think of specific kinds of radiation such as x-rays or the radiation made by nuclear reactors. X-rays 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. Radiation is the emission (sending out) of energy from any source.
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