Ultraviolet Radiation Cause And Effect Essay

    Most people are exposed to large amount UVA rays in their lifetime.They account for up to ninety-five percent of

UV radiation, such as that from the sun can be very harmful. It has been shown to cause many different mutations within cells, leading to issues for the organism such as death or disease. One of the most prevalent sources of UV radiation for humans is the sun. It’s very important for us to know the extent of cellular damage that can be caused by this radiation, as to know how harmful the sun’s rays are to us as humans. One way that the damage caused by the suns radiation can be tested is through the model organism yeast. For this lab, we exposed two different strains of yeast to UV radiation to test its affects. One strain was able to self-repair, while one was genetically altered so that it could not. Observations were recorded at

Macular Degeneration is a disease of the eye that gradually causes loss of a person’s central vision. Approximately 1.75 million Americans suffer from vision loss associated with the disease (All About Vision 1). The leading cause of blindness in people over the age of 60, Macular Degeneration, exists in two types (National Eye Institute 1). Both the wet and dry versions of the disease have similarities in risk factors, but differ in symptoms and treatments.

Since UV radiation is so damaging, always wear UV-blocking sunglasses, and start wearing proper eye protection at an early age.

The ozone layer is in the Earth’s stratosphere and the necessity of this layer is to protect the Earth from the sun’s harmful ultraviolet radiation rays. “Since the late 1970s, an ozone hole has formed over Antarctica each austral spring (September / October), in which up to 66 percent of the total ozone is depleted” (Ozone Layer Protection). What directly causes holes in ozone are Chloroflourocarbons (CFCs), which rapidly damage the ozone layer. However, with the rising global warming temperature the CFCs’ process is catalysed, further damaging the ozone layer. “According to the estimates made by Dasgupta and Bhaumik (1995), it is likely that 10% decrease in ozone will lead to 20% increase in UV irradiance” (Gangul and Iyer 2006). Once an uncontrolled amount of UV radiation is exposed to lifeforms, especially to humans, “According to the estimates made by Vander Leun and De Gruijl (1993), 1% decrease in total stratospheric columnar ozone (SCO) will lead to 2.3% increase in non-melanoma skin cancer, 2% increase in cutaneous melanoma and 0.5% increase in the incidence of cataracts” (Gangul and Iyer 2006). More devastating effects from the depleting ozone layer are more destruction to agricultural fields, warming of oceans and increased acidity which is diminishing the amounts of phytoplankton, which can immensely affect the stability of the food chain. Therefore, the depletion of

According to the United States Environmental Protection Agency (2010), ultraviolet (UV) rays are remarkably damaging to the skin without the proper protection. The National Weather Service and the EPA have developed the UV Index, a tool that predicts the level of UV radiation and indicates the risk, numerically. It is scale in which 0-2 indicates low risk of danger from sun rays, 3-5 indicates moderate risk, 6-7 indicates high risk, 8-10 indicates very high risk, and 11+ indicates extreme risk of harm. There are a considerable number of factors that influence an ultraviolet level, including stratospheric ozone layer, time of day, time of year, latitude, altitude, weather

The first disease I’m going to mention is Glaucoma, according to Web MD last updated in 2015, Glaucoma is a condition that causes damage to your eye's optic nerve and gets worse over time. It's often associated with a buildup of pressure inside the eye. Glaucoma tends to be inherited and may not show up until later in life.

It is known to damage the retina and can most often lead to blind spots and/or temporarily cause a detachment [1]. It can also lead to recurring problems, which can result in cystoid retinal degeneration, leaks from the choroidal hemangioma, as well as suffer from loss of vision [18]. Since this type of treatment involves the use of thin and narrow lasers, there can be malfunctions when trying to reach the tissue vessels. This most likely causes the peripheral view of the patient to become discrete [23]. However, it is an effective treatment that is used in third world countries because of its management, cost efficiency, and material usage [5] [6]. Furthermore, it can be effective when using this type of treatment because of the low side effects. Since it is a bloodless procedure, photocoagulation causes less physical pain and an easier method to avoid having a contact with any type of infection. It also makes it easier for the patient to have a much quicker recovering period, because it can be tolerated by children, young adults, as well as the much older generation

Primary intraocular cancers start inside your eyes. For adults, melanoma is the most common primary intraocular cancer, followed by primary intraocular lymphoma. For children, retinoblastoma is the most common primary intraocular cancer, and medulloepithelioma is the next most common These childhood cancers are discussed in Retinoblastoma. Although the eyelid is formed to shield the eye, its skin is extremely thin and carries many fragile tissues that may be injured by UV light. Inside the eye, the lens and the cornea, both translucent, filter UV rays, but by doing so for many years, they may become damaged. This is especially accurate for the lens, which through years of UV absorption, turns yellowish and cataractous. The lens is the eye's

To deduce if UV Radiation induced a mutation in the DNA of Serratia Marcescens and prevented the production of the red pigment called Prodigiosin.

Acute glaucoma must be treated early to prevent loss of vision. Treatment usually begins with laser treatment to make a new opening in the iris that allows the angle to open. This is often restores vision, but in some eyes it is necessary to use eyedrops long-term. Surgical treatment

Patients who suffer from it often complain of persistent severe dryness and cracking of the lips, resulting in extreme pain in addition to looking bad. This damage done by sun exposure does not stop at the skin and eyes, even though the suns damaging UV rays hit only the outside of our bodies, the inside of our bodies can be affected by the sun too. Risk estimations have been performed by the National Institute of Public Health and the Environment. It is estimated that UV doses relevant to outdoor exposure can ruin proper function of the body’s immune system. This will affect the bodied natural resistance to infectious agents, such as bacteria, parasites, viruses, and fungi. It sounds like our mothers were wrong when they told us that we needed to go outside and get some sun.

Scientists all over the world have been widely researching to find out ways in which the ozone layer is being destroyed through human actions. The ozone layer is gradually being destroyed by ozone depleting chemicals. These chemicals include chlorofluorocarbons (CFCs), hydroflourocarbons (HFCs), methyl bromide, halons, methyl chloroform and carbon tetrachloride among others (Ryding 173). These chemicals are used locally in coolants, fire extinguishers, solvents, pesticides, aerosol propellants and foaming agents.

We all know that without sunlight, Life is impossible on earth. Its spectrum extends from about 290nm to 3000nm.Human body use sunlight to make vitamin D in body but It need s small amount of energy but too much exposure to sunlight can result skin damage I.e. sunburn, premature skin ageing, allergies And can even cause skin cancer. This is caused by the ultra violet region of the sun light as shown in fig.

Many of us might not understand how important the ozone layer is to our planet. So that is why we should take more care of our environment so we don’t deplete our ozone layer even more. To some this topic may not be important and they don’t understand what affects these dangerous chemicals can have on our environment. Hopefully reading this they will want to take better care of our planet for our future generations.