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Electromagnetic radiation can be classified into two types: ionizing radiation and non-ionizing radiation, based on the capability of a single photon with more than 10 eV energy to ionize atoms or break chemical bonds. [1]
Different biological effects are observed for different types of non-ionizing radiation. [6] [8] [7] The upper frequencies (lower energy ultraviolet) of non-ionizing radiation are capable of non-thermal biological damage, similar to ionizing radiation. It is still to be proven that non-thermal effects of radiation of much lower frequencies ...
The antennas contained in mobile phones, including smartphones, emit radiofrequency (RF) radiation (non-ionizing "radio waves" such as microwaves); the parts of the head or body nearest to the antenna can absorb this energy and convert it to heat or to synchronised molecular vibrations (the term 'heat', properly applies only to disordered molecular motion).
The more dangerous types of radiation, such as the ones that come from nuclear bombs or other nuclear material, are ionizing.” Ionizing radiation causes DNA damage, and cancer can develop as a ...
The effect of non-ionizing forms of radiation on living tissue has only recently been studied. Nevertheless, different biological effects are observed for different types of non-ionizing radiation. [4] [6] Even "non-ionizing" radiation is capable of causing thermal-ionization if it deposits enough heat to raise temperatures to ionization energies.
The devices emit low levels of radiation, but they pose no health risks to users.
Plus, unlike ionized radiation — which can put people at risk for developing cancer — electromagnetic waves are non-ionizing and therefore do not cause radioactivity in food or people exposed ...
Radiation is a moving form of energy, classified into ionizing and non-ionizing type. [4] Ionizing radiation is further categorized into electromagnetic radiation (without matter) and particulate radiation (with matter). [4] Electromagnetic radiation consists of photons, which can be thought of as energy packets, traveling in the form of a wave ...