Here is an animation for better understanding of the Ozone gas depletion process.
Part - 1
Part - 2
Explanation:
1. The atmosphere acts as a natural filter, absorbing harmful shorter wavelengths such as X-rays, UV rays, Gamma rays yet allows life giving visible light and infrared wavelength to pass.
One such gas Ozone in ozonosphere protects us from UV rays.
2. Ozone is a molecule formed by three atoms of oxygen, weakly bounded together in an unstable arrangement.
3. As oxygen levels in Earth’s atmosphere increased over billions of years, some oxygen gas (O2) migrated into the stratosphere where the UV radiation reacted and formed ozone layer. In this way ozone layer formed.
4. After World War II, humans developed chemicals for electronics industries. These are chloroflurocarbons (CFCs) compounds. It comprises of chlorine (CI), fluorine (F) and carbon (C).
These CFC molecules are inert in lower atmosphere but causes havoc in stratosphere. The UV rays cracks the CFC molecule apart, freeing the chlorine (CI) atom.
5. In these photochemical reactions the freed CI atom starts destroying ozone molecules. It turns ozone into oxygen gas molecules.
6. The problem is that oxygen gas is transparent to UV rays. Thus, we have our present atmospheric condition where the increased UV rays are threatening the living systems on the Earth.
Part - 1
Part - 2
Explanation:
1. The atmosphere acts as a natural filter, absorbing harmful shorter wavelengths such as X-rays, UV rays, Gamma rays yet allows life giving visible light and infrared wavelength to pass.
One such gas Ozone in ozonosphere protects us from UV rays.
2. Ozone is a molecule formed by three atoms of oxygen, weakly bounded together in an unstable arrangement.
3. As oxygen levels in Earth’s atmosphere increased over billions of years, some oxygen gas (O2) migrated into the stratosphere where the UV radiation reacted and formed ozone layer. In this way ozone layer formed.
4. After World War II, humans developed chemicals for electronics industries. These are chloroflurocarbons (CFCs) compounds. It comprises of chlorine (CI), fluorine (F) and carbon (C).
These CFC molecules are inert in lower atmosphere but causes havoc in stratosphere. The UV rays cracks the CFC molecule apart, freeing the chlorine (CI) atom.
5. In these photochemical reactions the freed CI atom starts destroying ozone molecules. It turns ozone into oxygen gas molecules.
6. The problem is that oxygen gas is transparent to UV rays. Thus, we have our present atmospheric condition where the increased UV rays are threatening the living systems on the Earth.
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