Oct 30, 2012 · Ultraviolet (UV) radiation from the sun is the main cause of skin cancer, although artificial sources of UV radiation, such as sunlamps and tanning booths, also play a role. UV radiation can damage the DNA, or genetic information, in skin cells, creating "misspellings" in their genetic code and, as a result, alter the function of those cells.
The UV radiation dose to the population can be significantly decreased by applying simple strategies and measures to reduce exposures to the sun and artificial sources of UV radiation; and, The World Health Organization (WHO) has classified all UV radiation as a Class 1 carcinogen, which includes sunlight (1992) and tanning equipment (2009).
May 27, 2004 · It is well known that exposure to ultraviolet radiation damages hair fiber. Dryness, reduced strength, rough surface texture, loss of color, decreased luster, stiffness and brittleness of hair are caused by sun exposure. Photochemical degradation of hair results in attack on both hair proteins and melanins. Hair protein degradation is induced
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
Ultraviolet radiation is known to suppress the immune system and reduce inflammatory responses. Light therapy for skin conditions like psoriasis usually use 313 nanometer UVB though it may use UVA (315–400 nm wavelength) or a broader spectrum UVB (280–315 nm wavelength).
with an ultraviolet radiation sensor, in the understanding of this type of radiation and in the awareness to the artificial sources of UV radiation used in the daily life of many people. This project was carried out with a group of students from the ninth grade, from a school in Porto, Portugal. The methodology used allowed the
Mar 10, 2021 · Too much exposure to ultraviolet light from the sun increases the risks of eye diseases, including cataracts, growths on the eye and cancer. We know less about blue light. Its effects are still being researched. Some studies suggest that not enough exposure to sunlight in children could affect the growth and development of their vision.
Sunburn, acute cutaneous inflammation caused by overexposure to ultraviolet (UV) radiation of the so-called UVB wavelength band (290–320 nanometre; a nanometre is 10-9 metre), which originates from sunlight or artificial sources. Reactions to overexposure range in severity from mild redness and.
Artificial sources of radiation: lamps. Although the intensity of ultraviolet radiation is, in general, larger in the outdoor environment, the radiation penetrating through the windows and the radiation emitted by artificial lighting, generally available indoors, may potentially exert long-term effects 11.
Skin tanning is achieved by an increase in the dark pigment inside skin cells called melanocytes, and is an automatic response mechanism of the body to sufficient exposure to ultraviolet radiation from the Sun or from artificial sunlamps. Thus, the tan gradually disappears with time, when one is no longer exposed to these sources.
Exposure to ultraviolet radiation (UVR) occurs from both natural and artificial sources. The main natural source is the sun. On the other hand, artificial UVR sources are widely used in industry and also used in hospitals, laboratories, etc. because of their germicidal properties. They are even used for cosmetic purposes.
Jun 17, 2021 · Avoid artificial radiation sources. Artificial sources of radiation are just as dangerous as being directly exposed to the sun's UV radiation. If you want to reduce your risk of UV exposure, it's best to avoid tanning facilities altogether. Lying under a tanning lamp puts your body in direct contact with UV radiation, which can be very dangerous.
Nov 5, 2015 · The effect of UV irradiation on different wood species represents an open subject of research. Six species, half softwoods and half hardwoods, all important for both historic and modern furniture, were subjected to the action of artificial UV radiation at a constant temperature of 40 °C. The species were: fir (Abies alba), pine (Pinus sylvestris), larch (Larix decidua), ash (Fraxinus
Sunburn is caused by UV radiation from the Sun but may also result from artificial sources, such as tanning lamps, welding arcs, or ultraviolet germicidal irradiation. It is the body's reaction to direct DNA damage from UVB light. This damage is mainly the formation of a thymine dimer.
Oct 18, 2019 · Sunburn is an acute inflammatory skin reaction occurring due to extended exposure to ultraviolet (UV) rays from the sun or artificial sources such as tanning beds. The intensity and duration of UV exposure, along with factors such as medication usage, time of day, ozone depletion, high altitude, clear skies, and skin phototype, primarily influence the risk of sunburn. To decrease the risk of
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