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Chlorofluorocarbons

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An evaluation of technical options available to reduce emissions from nonaerosol uses of chlorofluorocarbons (CFCs). This study examines about 100 methods of reducing emissions in a wide variety of product areas. The methods involve chemical substitutes for CFC, product substitutes for CFC-using products, work practices, and chemical control technologies. The emissions reducing potential of each option is estimated, and the cost and difficulty of implementing each option are discussed. Nine options appear to be amenable to implementation without serious nationwide economic repercussions and could reduce emissions by about one-third.

Air quality management. --- Chlorofluorocarbons.

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The Special Publication contains infrared and mass spectra for a wide range of chlorofluoro-bromo ethanes and ethylenes that are relevant to research on alternative refrigerants. Alternative refrigerants are working fluids that are thought not to contribute significantly to atmospheric ozone depletion. In addition to the spectroscopic data, some physical property and safety information is included for each fluid as well. Not all of the compounds covered in the publication can be used as refrigerants. Indeed, some of them are in fact solids under ambient conditions, and others are fully halogenated, thus making them unfavorable from an ozone depletion standpoint. The study of all of these materials is important, however, since many will be found as impurities or reaction/decomposition products of refrigerant fluids. The publication provides a signal source for some particularly useful analytical information needed in the identification of these compounds.

Chlorofluorocarbons --- Refrigerants --- Spectra.

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Chlorofluorocarbons --- Groundwater flow --- Environmental aspects

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Air --- Chlorofluorocarbons --- Pollution. --- Environmental aspects.