0 (a) CFC -- freon
Similarly, attention to the health and other consequences of an expanding ozone hole led to restrictions upon the release of chlorofluorocarbons into the atmosphere.
The early programs included the elimination of lead in gasoline, the phase-out of chlorofluorocarbons and halons in refrigeration, and the reduction of water pollution from nonpoint sources.
Chlorofluorocarbons may damage the statospheric ozone layer, but at the moment the evidence for this is uncertain.
All halon fire extinguishers have been replaced and regular checks for chlorofluorocarbon leakage detection are carried out on relevant departmental equipment.
All new equipment purchased is free from chlorofluorocarbons.
Manufacturers are looking at alternative chlorofluorocarbons and other substitute compounds, but ones with suitable properties are difficult to find.
These will be taken into account in the course of our current appraisal of the possible effects of chlorofluorocarbons.
It is assumed that all the chlorofluorocarbons used in the manufacture of metered dose inhalers will eventually be emitted to atmosphere.
