What is the meaning of CFCs?
chlorofluorocarbon (CFC), any of several organic compounds composed of carbon, fluorine, and chlorine. When CFCs also contain hydrogen in place of one or more chlorines, they are called hydrochlorofluorocarbons, or HCFCs. CFCs are also called Freons, a trademark of the E.I.
Who found CFC?
Sherwood Rowland and Mario J. Molina discovered that chlorofluorocarbons (CFCs) could deplete Earth’s atmospheric ozone layer, which blocks the sun’s damaging ultraviolet rays. When the scientists reported their findings in 1974, CFCs were widely used as refrigerant gases and as propellants in aerosol sprays.
Why was CFC created?
CFCs were first synthesized in 1928 by Thomas Midgley, Jr. of General Motors, as safer chemicals for refrigerators used in large commercial appilications1.
What countries still use CFCs?
Environment > CFC > Consumption: Countries Compared
| # | COUNTRY | AMOUNT |
|---|---|---|
| 1 | China | 2.1 million |
| 2 | South Korea | 1.86 million |
| 3 | Russia | 817,386 |
| 4 | Venezuela | 602,348 |
Who invented ozone hole?
In 1985 Jonathan Shanklin was a junior researcher at BAS when he discovered a hole in the invisible shield that protects us from solar radiation. We catch up with him to learn about his work and how it has made a difference. It’s 36 years since scientists first discovered the hole in the ozone layer.
Who is Thomas Midgley?
Thomas Midgley, Jr., (born May 18, 1889, Beaver Falls, Pennsylvania, U.S.—died November 2, 1944, Worthington, Ohio), American engineer and chemist who discovered the effectiveness of tetraethyl lead as an antiknock additive for gasoline.
Which countries still use CFCs?
Which country emits the most CFC?
China
Environment > CFC > Consumption: Countries Compared
| # | COUNTRY | AMOUNT |
|---|---|---|
| 1 | China | 2.1 million |
| 2 | South Korea | 1.86 million |
| 3 | Russia | 817,386 |
| 4 | Venezuela | 602,348 |
Which country is most responsible in destroying ozone layer of the atmosphere?
Overall, ozone depletion increases with latitude with low levels of depletion at the equator and tropics, and highest depletion at the poles. Although depletion has occurred over both the Antarctic and Artic poles, Antarctica has experienced the most severe development of the ‘ozone hole’.