The Importance of the Ozone

The importance of ozone is "an increasingly toxic infection, the continent of the Earth's ozone layer is getting bigger and bigger" (beyond the discovery). Ozone is a protective layer naturally existing in the stratospheric altitude of 6 to 28 miles. Every year since the late 1970s, the majority of the ozone layer above Antarctica disappeared and formed the famous "ozone hole". This hole currently covers an area of ​​about 9 million square miles, which is almost the same as North America.

III. Common problem of ozone What is the ozone layer? Why is it important? The ozone layer is the concentration of stratospheric ozone molecules. Approximately 90% of the ozone on the earth is present in the ozone layer. The atmosphere of the earth around us is called the troposphere. The stratosphere is the next highest layer that extends approximately 10 to 50 kilometers above the surface of the earth. Stratospheric ozone is natural gas that cuts the sun's ultraviolet (UV) radiation. Reduction of the ozone layer allows more radiation to reach the surface of the earth. For people, excessive exposure to ultraviolet radiation can cause skin cancer, cataracts, and loss of the immune system. Increasing ultraviolet rays also results in reduced yields of crops, disruption of the ocean's food chain, and other harmful effects.

The ozone molecule (O 3) is composed of three oxygen atoms. Ozone in the upper atmosphere (stratosphere) is called the "ozone layer" and protects the life on the earth by absorbing most of the ultraviolet (UV) radiation emitted from the sun. Exposure to excessive ultraviolet radiation may reduce the productivity of certain crops in relation to inhibition of skin cancer, cataract and immune system. Therefore stratospheric ozone is called "good ozone". On the contrary, the human industry causes "ozone pollution" on the ground. This "smelly" is the main component of smoke. When artificial CFC molecules (consisting of chlorine, fluorine and carbon) reach the stratosphere and are decomposed by the short wavelength energy from the sun, the ozone layer decreases. Free chlorine atoms destroy ozone molecules and form holes in the ozone layer. The hole of the ozone layer over Antarctica in 1998 was "the largest cave since the first appearance in the late 1970s". Ten