The transition from CFC to HFA propellants is occurring because of public health concerns about the detrimental effects of CFCs on stratospheric ozone levels. In 2005, the Food and Drug Administration ...
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Researchers have rebuilt the ozone column trends recorded between 1978 and 2008 that rise up over the Iberian Peninsula. The results highlight the influence that the prohibition of aerosols and ...
Chlorofluorocarbon effects and regulations : hearing before the Subcommittee on the Upper Atmosphere of the Committee on Aeronautical and Space Sciences, United States Senate, Ninety-fourth Congress, ...