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Chloroflurocarbons (CFCs)

Physics and Chemistry of Water

  1. Gholam A. Kazemi

Published Online: 15 APR 2005

DOI: 10.1002/047147844X.pc116

Water Encyclopedia

Water Encyclopedia

How to Cite

Kazemi, G. A. 2005. Chloroflurocarbons (CFCs). Water Encyclopedia. 4:420–424.

Author Information

  1. Shahrood University of Technology, Shahrood, Iran

Publication History

  1. Published Online: 15 APR 2005

Abstract

The use of CFCs in hydrology began when Thompson et al. (1) the usefulness of a special type of fluorocarbon known as Freon 11, as a tracer in both groundwater and surface water hydrology. They found good agreement between CCl3F data and hydrologic and tritium age data. Brown (2) also examined the use of fluorocarbons as groundwater tracers through soil column studies. There was no significant use of or development in CFC dating techniques during the 1980s, possibly due to the availability of other methods such as the tritium method and the low resolution of the available CFC analytical techniques. From 1992, the application of CFCs in groundwater studies, especially for age dating and determination of rainfall recharge became important (3).

Keywords:

  • errors in dating young groundwater;
  • equivalent atmospheric concentration;
  • HCFC;
  • sampling groundwater;
  • shallow groundwater