CFC reduction

courtesy : cfc reduction

Pollution
Part of a series on
Air pollution from a factory in Nepal
hide Air Acid rain Air quality index Atmospheric dispersion modeling Chlorofluorocarbon Exhaust gas Haze Indoor air Internal combustion engine Global dimming Global distillation Ozone depletion Particulates Persistent organic pollutant Smog Aerosol Soot Volatile organic compound
show Biological
showDigital
show Electromagnetic
showNatural
show Noise
show Radiation
show Soil
showSolid waste
show Space
show Thermal
show Visual
show War
show Water
showMisc
Environment portal Ecology portal
v t e

Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) are fully or partly halogenated hydrocarbons that contain carbon (C), hydrogen (H), chlorine (Cl), and fluorine (F), produced as volatile derivatives of methane, ethane, and propane. They are also commonly known by the DuPont brand name Freon.

The most common representative is dichlorodifluoromethane (R-12 or Freon-12). Many CFCs have been widely used as refrigerants, propellants (in aerosol applications), and solvents. Because CFCs contribute to ozone depletion in the upper atmosphere, the manufacture of such compounds has been phased out under the Montreal Protocol, and they are being replaced with other products such as hydrofluorocarbons (HFCs)^[1] including R-410A and R-134a.^[2]^[3]