Romanhole R C, Ataide J A, Moriel P, Mazzola P G
Department of Clinical Pathology, Faculty of Medical Sciences, University of Campinas (Unicamp), Campinas, Brazil.
Faculty of Pharmaceutical Sciences, University of Campinas (Unicamp), Campinas, Brazil.
Int J Cosmet Sci. 2015 Aug;37(4):366-70. doi: 10.1111/ics.12219. Epub 2015 Mar 23.
Solar radiation, especially ultraviolet A (UVA) and ultraviolet B (UVB), can cause damage to the human body, and exposure to the radiation may vary according to the geographical location, time of year and other factors. The effects of UVA and UVB radiation on organisms range from erythema formation, through tanning and reduced synthesis of macromolecules such as collagen and elastin, to carcinogenic DNA mutations. Some studies suggest that, in addition to the radiation emitted by the sun, artificial sources of radiation, such as commercial lamps, can also generate small amounts of UVA and UVB radiation. Depending on the source intensity and on the distance from the source, this radiation can be harmful to photosensitive individuals. In healthy subjects, the evidence on the danger of this radiation is still far from conclusive.
太阳辐射，尤其是紫外线A（UVA）和紫外线B（UVB），会对人体造成损害，而且根据地理位置、一年中的时间和其他因素，人体受到的辐射量可能会有所不同。UVA和UVB辐射对生物体的影响范围很广，从形成红斑，到晒黑以及减少胶原蛋白和弹性蛋白等大分子的合成，再到致癌的DNA突变。一些研究表明，除了太阳发出的辐射外，人工辐射源，如商用灯具，也会产生少量的UVA和UVB辐射。根据光源强度和与光源的距离，这种辐射可能会对光敏个体有害。对于健康受试者而言，关于这种辐射危险性的证据仍远未确凿。
