WebJul 16, 2008 · The ozone hole. The term ‘ozone hole’ refers to the depletion of the protective ozone layer in the upper atmosphere (stratosphere) over Earth's polar regions. People, plants, and animals living under the ozone hole are harmed by the solar radiation now reaching the Earth's surface—where it causes health problems, from eye damage to skin ... WebCFCs degrade in the stratosphere by photolytic breakdown, releasing highly reactive atoms of chlorine and fluorine, which then form simple compounds such as chlorine monoxide (ClO). These secondary products of stratospheric CFC decomposition react with ozone …

The Ozone Hole and Global Warming - Union of Concerned Scientists

WebCFCs contain both chlorine and fluorine. … Free chlorine atoms catalyse the breakdown of ozone molecules (03) into oxygen. This results in degradation of the ozone layer. Thinning of the ozone layer would allow penetration of ultraviolet light into Earth’s atmosphere causing blindness, skin cancer and mutations. What are the dangers of CFCs? WebChlorofluorocarbons (CFC's) CO2 is now used as a blowing agent for producing expanded polymers instead of CFC's Legislation to ban the use of CFCs was supported by chemists and chemists have now developed alternative chlorine-free compounds N Goalby chemrevise.org 3 The Ozone Layer The naturally occurring ozone (O3 ) layer in the … nj police officer can smoke weed

Chlorofluorocarbon - Wikipedia

WebJan 8, 2024 · Science takes time. In 1986 Susan Solomon (b. 1956) provided the most conclusive evidence for the theory proposed 13 years earlier that CFCs could be destroying the protective layer of ozone in the earth’s upper atmosphere. In 1973 a postdoctoral researcher named Mario Molina proposed that a class of compounds called … WebHowever, the abundance of CFC-11 decreases as the gas reaches higher altitudes, because it is broken down by high-energy solar ultraviolet radiation. Chlorine released from this breakdown of CFC-11 and other CFCs remains in the stratosphere for several … Nevertheless, during the 1970s it was realised that man-made emissions of … Ozone is comparatively rare in the atmosphere - there are only 3 molecules … Details of Low Ozone Events between January 2000 and December 2009. 5. UK local authority and regional carbon dioxide emissions national statistics: … A grating spectrometer disperses ultraviolet light onto a focal plane, in which six exit … WebA) decrease the amount of CFCs used locally. B) improve transportation options, including carpool lanes, buses, and light rail. C) remove the hydroelectric dam on the river. D) investigate the large city downwind whose factories produce large amounts of pollution. E) move or close the cattle feed lots near the river nursing home rockwall tx