Ozone layer compounds affecting

The depletion of the ozone layer by CFCs affects society because increased amounts of UV light on Earth affects human health. Most notable is the increased skin cancer risk. The Montreal Protocol banned the production of these ozone-depleting chemicals on January 1, 1996 (11.10). Other, less harmful compounds like HCFCs face bans in the coming years. Like other good environmental legislation, the CFC ban has worked. Atmospheric CFC levels are expected to level out and then drop in the coming years. The ozone hole itself is expected to disappear by the end of this century. 

Among halocarbons (halogenated hydrocarbons), bromochlorofluorocarbons in which at least one chlorine or fluorine atom of chlorofluorocarbons is substituted by bromine is called halons. Halons, as with CFCs, do not have any dissipating process in the troposphere, and reach to the stratosphere and are photolyzed, which affects the ozone layer destruction. Among halons, Cp2ClBr (halon—1211) and CFsBr (halon-1301) have the highest atmospheric concentratiOTis, and these two compounds are taken up here. 

In turn, results of the chemical kinetics compose the scientific foundation for the synthetic chemistry and chemical technology. The methods for affecting the reaction developed in the kinetics are used for controlling the chemical process and creation of kinetic methods for the selective preparation of chemical compounds. The methods for retardation (inhibition) of chemical processes are used to stablize substances and materials. Kinetic simulation is ised for the prognostication of terms of the operation of items. The kinetic parameters of reactions of substances ccmtained in the atmosphere are used for prognosis of processs that occur in it, in particular, ozone formation and decomposition (problem of the ozone layer). The kinetics is an important part of photochemistry, electrochemistry, biochemistry, radiation chemistry, and heterogeneous catalysis. 

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