The regulations of the Montreal Protocol on Substances that Deplete the Ozone layer and its Amendments and Adjustments has led to the phase-out of chlorofluorocarbons (CFCs) and hydrofluorochlorocarbons (HCFCs) in the rigid foam blowing sector.
This paper describes experimental methods and presents results for the adsorption of atmospherically important gases on carbon-based solid adsorbent materials used principally in our on-site ADS-GCMS instruments.
Chlorinated hydrocarbons are emitted to the atmosphere from their widespread use as solvents in diverse industrial, commercial and domestic applications.
A significant annual increase in the rate of CO2 accumulation was observed at the Mace Head (Ireland) AGAGE station during 2002-2003. While unexpected, the increase was in close agreement with a similar increase reported in Hawaii.
AGAGE measurements of pollution events at Trinidad Head (CA) have been used to infer decreases of the emissions of CFC-11, CFC-12, CFC-113 and methyl chloroform from 1996 to 2003.
Long term data show that annual European emissions of methyl chloroform did not exceed 3,400 tons from 2000-2003. Methyl chloroform is one of the ozone depleting substances phased out under the Montreal Protocol.