What is CFC in biology?

What is CFC in biology?

Chlorofluorocarbons (CFCs) are nontoxic, nonflammable chemicals containing atoms of carbon, chlorine, and fluorine.

What is the function of CFCs?

Chlorofluorocarbons (CFCs) are largely used as refrigerants, solvents, degreasing agents in the electronic industry, blowing agents in plastic formation and propellants for aerosol cans.

What is a CFC molecule?

CFCs are halocarbons that contain only the elements carbon, chlorine, and fluorine. The most common CFCs are small molecules containing only one or two carbon atoms. For example, a common refrigerant has the chemical formula of CCl2 F2 , which in industry-invented shorthand is known as CFC-12.

What is an example of a CFC?

a) Refrigerators and air conditioners – Refrigerants are the most common emitter of CFC. If the coolant used in refrigerators, air conditioners, cars, are not properly disposed it will leak CFCs in the atmosphere.

How do CFCs affect human health?

CFCs can generally impair the human immune system, and scientists have linked direct expose to problems with the central nervous system . These problems might include difficulty breathing or injury to the heart, kidneys and liver.

How does CFC cause ozone depletion?

Once in the atmosphere, CFCs drift slowly upward to the stratosphere, where they are broken up by ultraviolet radiation, releasing chlorine atoms, which are able to destroy ozone molecules. The seasons have an impact on the Antarctic ozone hole.

How do CFCs break down ozone?

Once in the atmosphere, CFCs drift slowly upward to the stratosphere, where they are broken up by ultraviolet radiation, releasing chlorine atoms, which are able to destroy ozone molecules.

What produces CFC?

CFCs and HCFCs are usually produced by halogen exchange starting from chlorinated methanes and ethanes.

What organ is affected by CFC?

Although CFCs are benign in low concentrations, high concentrations can affect the heart, central nervous system, liver, kidneys and lungs, and extremely high levels can kill. Of more concern, however, are the possible consequences of ozone depletion and global warming.

Are CFCs greenhouse gases?

Chlorofluorocarbons – CFCs Chlorofluorocarbons are exceptionally strong greenhouse gases and are also responsible for the destruction of stratospheric ozone.

Where do CFCs come from?

The most common source of CFCs are refrigerants, but fire suppression systems for aircraft and aerosols also emit CFCs into the atmosphere.

How are CFCs harmful for the environment and living beings?

a) CFCs are harmful to environment and living beings because. .. it increases greenhouse gases in the environment which results in forming holes in the ozone layer.. And if this happens it will cause to an increase in the UV rays exposer, and which will make the earth’s surface much more heater than before.

What do CFCs do to humans?

increased incidence of skin cancer and cataracts. immune system system damage. damage to terrestrial and aquatic plant life. increased formation of ground-level ozone (smog)

How does CFC affect human health?

How does CFC contribute to the greenhouse effect?

A single molecule of CFC-12 can hold nearly 11,000 times the heat of carbon dioxide, making it an extraordinarily potent greenhouse gas. The small, dark shed where the refrigerant cache was gathering dust held nearly 30,000 pounds of CFCs.

How CFCs destroy the ozone layer?

Why is CFC harmful?

Chlorofluorocarbons (CFCs) are a group of odourless manufactured chemicals. 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.

How do CFCs deplete the 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.)

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