Physics and Chemistry of Water
Published Online: 15 APR 2005
Copyright © 2005 by John Wiley & Sons, Inc.
How to Cite
Kazemi, G. A. 2005. Chloroflurocarbons (CFCs). Water Encyclopedia. 4:420–424.
- Published Online: 15 APR 2005
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).
- errors in dating young groundwater;
- equivalent atmospheric concentration;
- sampling groundwater;
- shallow groundwater