Ultraviolet germicidal irradiation

ozone can be found through the entire atmosphere, it is mostly concentrated at an altitude of about 15 miles.” A A 5. The ozone layer filters out UV-B and UV-C light, preventing it from reaching Earth’s surface. “... filtering two harmful forms of ultraviolet light called UV-B and UV-C.” D A 6. UV light causes CFCs to become more reactive. “...CFCs break into chlorine atoms…

actinic elastosis is a condition associated with chronic ultraviolet damage superimposed on aging skin. It presents as a yellowish thickened appearance to the skin which is bumpy and covered with furrows. The condition is due to the accumulation of disordered elastic tissue in the upper and middle layers of the dermis, which are most susceptible to sun exposure. In this way solar elastosis is a biological indicator of the degree of ultraviolet-induced skin damage the individual has sustained,…

such as Ultraviolet, Infrared, fluorescent, and LED lights, and they all can do different things. Ultraviolet light can be used as a way to light up certain types of clothing, or it can be used to sterilize food. Infrared light is mainly used as a way to heat up food, or as a shorter wavelength to control household items, such as televisions and DVD players. Fluorescent light is created by an electric current running through types of stable gas, which in turn produces short wave ultraviolet…

predicted that one of every three new cases of cancers is skin cancer. There are two types of skin cancer: melanoma and non-melanoma. Melanocytes produce melanin, which is the pigment cells responsible for skin color and also protect the body from ultraviolet rays. When these cells transform into cancerous cells, the result is melanoma. Melanoma is not as common but it is the deadliest and most dangerous type of skin cancer because it spreads rapidly throughout the body. Tens of thousands of…

Accordingly, the purpose of the experiment is to determine what the effect of UVA light is on Staphylococcus epidermidis. The hypothesis for this experiment is if the exposure of the ultraviolet light wattage increases, then the growth of staph will decrease when the growth of staph is a function of ultraviolet light. Moreover, the almost all of same form of UV light will be used. The three sources of UV light will be sunlight, which has a mixture of UVA and UVB light, tanning light, and black…

photosensitivity, pigmentary changes, and malignant tumor development. This affliction received its name from its characterized dry, pigmented skin. The symptoms are caused by an irregularity in DNA repair as a result of cellular hypersensitivity to ultraviolet radiation. XP usually presents itself during infancy and early childhood. Just a few minutes in the sun can cause serious sunburn with redness and blistering. People with this unique condition have an expanded risk of developing skin…

Skin Cancer The abnormal growth of skin cells is what causes skin cancer. This is sometimes brought on by too much expose to the sun. There are three main types of skin cancer called basal cell carcinoma, squamous cell carcinoma and melanoma. Reducing your exposure to sun can help in preventing skin cancer. Checking your skin regularly for any abnormalities is important to detecting skin cancer at the earliest stages. Skin cancer normally appears on areas of the body that get exposed to the…

Science Explanation and Added Information Adaptations: 0. (No Pigment - Human): We added in this adaptation to increase the level of survivability of humans. We thought that a reduction in pigment (or increase amount of pheomelanin which causes light skin and hair) would lead to less color in the skin and in the hair (or extreme white hair and skin) which will blend in into the surroundings. With this adaptation, these humans will be less likely to stand out in the snow and they will have and…

and premature aging. Skin cancer is one of the greatest causes of death in Australia and approximately 2 in 3 Australians will be diagnosed with a form of skin cancer before the age of 70. The main cause of skin cancer is due to over exposure to ultraviolet radiation from the sun. Skin Cancers arise from the skin due to the development of abnormal cells and have the ability to invade or spread to other parts of the body. The purpose of this assignment is to raise awareness to teenagers that…

Most people have encountered burns sometime in their life. Burns are probably one of the most common skin disorders known. Burns affect cells in the skin and cause them to die. There are 3 main types of burns and all can be caused from different origins. Burns are differentiated by how critical and the severity of the damage they do to the skin. Most burns, mostly 1st and 2nd degree are very minor, and can be recovered quickly using simple remedies such as burn cream, ice, or letting Mother…