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Depletion Of Ozone Layer In The Atmosphere And Its Effects
Depletion Of Ozone Layer In The Atmosphere And Its Effects
Depletion Of Ozone Layer In The Atmosphere And Its Effects
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0.20 and 0.29 UV-C are harmful to living things. These wavelengths have the ability to cause mutations to living cells, and even kill living cells. It also has the ability to damage your eyes.Most of the UV-C wavelengths are absorbs in the ozone. (But with our ever depleting ozone layer, what happens when the ozone layer is not there anymore?)
0.29 and 0.32 do reach us in small amounts, and can account for sunburn, and is skin cancer causing. This wavelength is known as UV-B and it can be dangerous, but is needed to help us get our daily dose of vitamin D which is essential to healthy bones.
0.32 and 0.40 is longer in length, but can
The ozone layer is the one that protects living things from the pure ultraviolet rays of the sun.
There are many issues regarding the raising and producing of various livestock animals, and the use of pesticides on various types of crops. The movie Food.Inc does a good job explaining these issues, but in a very biased way. It makes agriculturists look like terrible people, when this is not the case.
Tanning can be harsh to your skin. The light coming from the sun contains different wavelengths of ultra violet (UV) waves. The two types of waves concerned about are UVA rays and UVB rays. UVA rays are long waves that cause more damage than a UVB ray. UVA rays penetrate deeper into your skin and cause tanning (“The Dangers of”). More and more exposure to UVA rays can cause permanent damage ...
Levine, Jody A., MD, Michael Sorace, MD, James Spencer, MD, and Daniel M. Siegel, MD. "The Indoor UV Tanning Industry: A Review of Skin Cancer Risk, Health Benefit Claims, and Regulation." Special Article 53.6 (2010): 1038-043. Web. 14 Apr. 2014.
Childbirth is nothing short of a miracle. The placenta—the organ connecting a developing fetus to the uterine wall and allowing for waste elimination, nutrient uptake and gas exchange via the mother's blood supply—filters most harmful substances that threaten an embryo, though some may still pass on to the fetus. These harmful substances, called “teratogens,” range from environmental chemicals to the passing of maternal diseases, and can negatively impact the normal developmental cycle of a fetus. The title “teratogen,” however, effectually refers to any substance or chemical exposure with the potential to cause birth defects in prenatal development. Exposure to teratogens can result in a broad spectrum of physiological and psychological issues in later life, including malformations of the body. (Malformations resulting from exposure to one of the most common teratogens—alcohol—can be observed notoriously in Fetal Alcohol Syndrome, or FAS, where patterns of mental and physical defects develop in association with high levels of alcohol consumption during pregnancy.) Though the toxicity of these teratogens is particularly damaging during the fourth through tenth weeks of gestation, teratogens can harm throughout the span of development in the womb.
Sun shine contain ultraviolet ray which can cause the sunburn or even skin cancer. According to Cancer Council in Australia, Australia has highest incident rate of skin cancer in the world. More than 430000 Australians are diagnosed with skin cancer each year. There are approximately 60 percent of people who have got skin cancer will survive greater than five years after they diagnosis (Cancer Council Australia, 2014). In order to protect people under the sun, the sun protective behaviour is significant necessary.
Scientists have performed many different tests and studies to learn more about high exposure to UV. Close observation of cells have shown that sunlight, natural or artificial, can cause mutations or DNA damage in cells. This can lead to further damage which will then be passed down through generations. Another study scientists perform is on animals. Scientist will expose your typical lab animals to UV rays, and this test typically results in skin cancer on the animal. These studies have been performed with UVA, UVB, and UVC, and they have all proven
UV radiation causes significant damage to human skin, in the form of sunburns, aging, skin cancer, and nonmelanoma tumors. Human skin damage is primarily a result of tanning. The
Most of the light energy from the sun is emitted in wavelengths shorter than 4,000
Indoor tanning is a controversial topic and has even been the subject of lawmakers in many states for at least the past ten years. Tanning is a symbol of “health and wealth” for many living in the developed countries and yet it is associated with one of the most deadly cancers known to human beings because of the chemical reaction the Ultra Violet (UV) rays at the cellular level. The research is clear that the use of indoor tanning beds can be dangerous and yet, there are some benefits of using indoor tanning beds. Research has also shown that exposure to UV radiation contributes to the synthesis of Vitamin D in the body, it also can positively boost mood, can heal certain types of skin disorders and may also be helpful for those suffering from fibromyalgia. The indoor tanning industry should make known the risks of using a tanning bed known before selling their use to people. Before one makes a decision to use a tanning bed she should be well informed of the risks and benefits.
The sun’s rays contain two types of ultraviolet radiation that reach the skin, UVA and UVB.
The wavelength of CH4 is 138nm and this resides in the ultra-violet spectrum and is not visible to the naked eye.
we can’t see in the UV spectrum, and there are other animals such as butterflies which have 4 or 5 different photoreceptor types and can see more colors than us
Every woman when pregnant has a 3-5% chance of having a baby born with a birth defect, and these chances increase when the developing fetus/ embryos are exposed to teratogens, whether it’s intentional or unintentional (Bethesda (MD), 2006). Teratogens can cause severe birth defects, malformations, or terminate the pregnancy altogether (Jancárková, & Gregor, 2000). The placenta is known as an effective barrier from any detrimental pathogen that can potentially hurt the fetus. The timing of exposure of any teratogen is critical to the impact of prenatal development (Bethesda (MD), 2006). The most vulnerable time of the fetus for severe damage is during early pregnancy when all the major organ and central nervous system (CNS) are developing. Miscarriages have an important role in keeping a pregnancy from evolving when there is something serious going on with the developing fetus/embryo. Miscarriages are more common than we think and are the most familiar type of pregnancy loss (Bethesda (MD), 2006).
Probably the most commonly used word by your dermatologist, your beautician, your pharmacist or just the girl next door, and for a good reason. The sun’s damaging UV rays can single-handedly destroy your skin over time and in some cases even cause irreparable damage. It will burn your skin, dry it out, destroy collagen fibers and predispose you to cancer. Whether it’s a scorching sun or not, whether you are outdoors or not, sunscreen is an everyday must-wear. You have a choice.