Wednesday, April 14, 2010

What is the ozone layer

What is the ozone layer;
Ozone (O3) is composed of three oxygen atoms from ozone layer comprising a transparent gazdır.Ozon top levels of the atmosphere in other words, the ground surface layer which is located at 10-50 km altitude. The main role of this layer of ultraviolet (UV) rays of the sun's harmful rays, called korumaktır.Ozon we reach a layer of earth to protect against the harmful rays that acts as a filter.
Ultraviolet (UV) rays
For life to exist on earth as we know the sun is very important. Allows us to warm and gives us light. Solar radiation or light shows. Some of these rays are called ultraviolet rays. UV rays, scientists, and did not have the same characteristics of living things to be different because of the impact of UV-A, UV-B and UV-C were divided into three categories.
• UV-A: The most common and the rays are the least dangerous to our health. Ozone layer that allows light to pass.
• UV-B: Very dangerous. The majority of these rays, reach us not to be blocked by the ozone layer.
• UV-C: rays are most dangerous to health. The ozone layer prevents these rays from reaching us.
All our UV rays can penetrate the skin and eyes and can cause health problems. The ozone layer is thick with only UV-B radiation UV-A rays can reach a part of us. Our health is relatively preserved in this case. Ozone layer is damaged (examination), UV-A, UV-B UV-C radiation can reach us sometimes and in this case, our health would be adversely affected.
Exposed to the factors affecting the amount of UV rays
• Today's hours: 10.00-16.00 hrs in the sun is high in the sky. Greatly between these hours UV-A and UV-B rays can be exposed. Therefore, without appropriate protection to go out is a dangerous time.
• the distance to Ecuador: Ecuador the countries that are close to the equator than in distant countries are at risk. This is because the equator of the UV rays into the atmosphere has a shorter distance to travel before reaching the equator the atmosphere is governed by the less filtration.
• Height above sea level to 1000 m. As the exit rate increased by 8% in the UV rays.
What is the ozone hole?
Is not really a hole in the ozone hole. Examined in the ozone layer is one. This means that the ozone layer is tapered. This is because we are the chemicals released into the air. They use these chemicals in our daily lives and can damage the ozone layer.
Damage to the ozone layer of the chemical
• chlorofluorocarbons (CFCs), mainly in air conditioning systems, refrigerators in the production of foam (for example, deposits) are used.
• Halons, used in fire extinguishers.
• Methyl bromide, used as pesticides in agriculture.

Not been able to determine the modern equipment in the ozone layer. Measurements at the South Pole (Antarctica) has been shown to have been larger than the North Pole. Thinning in the ozone layer do something that will not grow further.
Thinning in the ozone layer is a global problem. Thinning in the ozone layer is sensitive to the problem of everyone and by not using harmful chemicals no longer will be possible to improve the ozone layer.
Consequences of the thin ozone layer
The main result of the ozone hole in the earth more of UV rays (which is very dangerous, especially UV-B) is reached.
Solar UV radiation burns, can cause skin cancer, eye damage (cataracts) and may lead to the weakening of the immune system in humans. As is known, the immune system is a system that allows us to resist disease. When this system is weakened our ability to fight disease will be weakened as well.
UV radiation affects not only our health but also negative effects on the environment can not. Reduce agricultural production, as well as disrupt the marine food chain can affect the fish population.

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