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How does CFC destroy ozone layer?
Gaseous CFCs can deplete the ozone layer when they slowly rise into the stratosphere, are broken down by strong ultraviolet radiation, release chlorine atoms, and then react with ozone molecules. See Ozone Depleting Substance.)
What is released when CFCs breakdown?
Chlorine released from this breakdown of CFC-11 and other CFCs remains in the stratosphere for several years, where every chlorine atom destroys many thousands of molecules of ozone.
How do CFCs work as refrigerants?
When CFCs, which are made of chlorine, fluorine, and carbon, break down over time due to exposure to UV radiation, they release chlorine atoms which react with the ozone molecule to destroy it. One chlorine atom can destroy 100,000 ozone molecules!
How are CFCs removed from the atmosphere?
These CFCs are not soluble in water, so deposition does not removed them from the air. “The only other mechanism that removes compounds from the troposphere is reaction with an abundant oxidizing agent–such as hydroxyl radicals, ozone, or nitrate radicals.
What causes CFC?
The most common source of CFCs are refrigerants, but fire suppression systems for aircraft and aerosols also emit CFCs into the atmosphere.
Is there a cheap way to destroy CFCs?
A SURPRISINGLY cheap and easy way to destroy CFCs, the main chemicals that deplete the ozone layer, has been discovered by chemists at Yale University.
Why are CFCs bad for the environment?
Because they damage the earth’s ozone layer, CFCs have been banned since 1996. Depletion of the Ozone Layer will have a negative impact on the biodiversity of the earth itself. With excessive radiation hitting the surface of the Earth will destroy agricultural productivity and even plant life. It will even cause skin cancer in humans.
What happens to CFC when it breaks down?
Virtually all the CFC breaks down, and the result is salt, carbon and carbon dioxide.
What are chlorofluorocarbons (CFCs)?
Chlorofluorocarbons (CFCs) and hydrofluorocarbons (HFCs) Chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs) and halons destroy the earth’s protective ozone layer, which shields the earth from harmful ultraviolet (UV-B) rays generated from the sun. CFCs and HCFCs also warm the lower atmosphere of the earth, changing global climate.