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firs person to discovery ozone layer
http://www.lenntech.com/library/ozone/history/ozone-history.htmA Dutch chemist called Van Marum was probably the first person to detect ozone gas sensorially. In the description of his experiments, he mentioned the notion of a characteristic smell around his electrifier [1,3].
However, the discovery of ozone was only just mentioned by name decennia later, in a writing of Schönbein that dates back to 1840.
Read more: http://www.lenntech.com/library/ozone/history/ozone-history.htm#ixzz2ct46wtTO -
volcano can lead to deplation of ozone layer
http://www.weatherquestions.com/What_is_the_ozone_layer.htmThe ozone layer has since begun to recover somewhat as a result of these efforts, but there is some science which now suggests that the major volcanic eruptions (mainly El Chichon in 1983 and and Mt. Pinatubo in 1991) which have occurred since we started monitoring ozone with satellites in the late 1970's, could have also contributed to the ozone depletion. -
loss of ozone layer
http://www.atm.ch.cam.ac.uk/tour/part1.html1. Dramatic loss of ozone in the lower stratosphere over Antarctica was first noticed in the 1970s by a research group from the British Antarctic Survey (BAS) who were monitoring the atmosphere above Antarctica from a research station -
deplation of ozone
in 1982 a team from the British Antarctic Survey working in Antarctica found that much of the ozone overhead had vanished. Suspecting that their well-worn instruments might be faulty, the team returned, with new equipment, in 1983 and 1984 - to find even less ozone. -
chlorofuorocabon destorying ozone layer
http://www.epa.gov/ozone/defns.htmlChlorofluorocarbon (CFC): a compound consisting of chlorine, fluorine, and carbon. CFCs are very stable in the troposphere. They move to the stratosphere and are broken down by strong ultraviolet (UV) light, where they release chlorine atoms that then deplete the ozone layer. -
Efect of CFCs on eviroment
http://zwhudson.myweb.uga.edu/chem8290/effects%20on%20environment.htmThe chlorine atoms are recycled in these reactions, and are then free to attack other ozone molecules. A single chlorine atom, released by the action of UV radiation on chlorofluorocarbons, is capable of destroying catalytically tens of thousands of ozone molecules during its residence in the stratosphere. -
greenhouse dangerous chemicals
http://www.undp.org/content/undp/en/home/ourwork/environmentandenergy/focus_areas/ozone_and_climate/cc_mitigation_and_phaseout/In addition to depleting the ozone layer, most ozone depleting substances controlled by the Montreal Protocol are also powerful greenhouse gases (GHGs).
