Chlorofluorocarbons (CFCs) were historically used in foamed plastics, propellants, and refrigerants, but their use has declined due to environmental concerns. Hydrofluorocarbons (HFCs) and carbon dioxide are now more commonly used alternatives. Ozone gas is not utilized in these applications.
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Chlorofluorocarbons (CFCs) have been used historically in the production of foamed plastics, as propellants, and refrigerants. Hydrofluorocarbons (HFCs) have replaced CFCs due to environmental concerns. Ozone gas is not used for these purposes. ;