Research Highlights

HFC-245fa and HFC-365mfc — New foam-blowing hydrofluorocarbons (HFCs) on the horizon (2006)

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.

Retention behaviour of volatile C1-C3 fluoroalkanes upon selected preconcentration adsorbents. I. Carbon molecular sieves and activated charcoals (2006)

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.

Global trends, seasonal cycles and European emissions of dichloromethane, trichloroethene and tetrachloroethene from the AGAGE observations at Mace Head, Ireland and Cape Grim, Tasmania. (2006)

Chlorinated hydrocarbons are emitted to the atmosphere from their widespread use as solvents in diverse industrial, commercial and domestic applications.

Can recent growth rate anomalies in the greenhouse gases be attributed to large-scale biomass burning events? (2005)

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.

What are the lingering U.S. emissions of ozone-depleting gases? (2005)

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.

Are there large lingering European emissions of the important ozone-depleting gas methyl chloroform (1,1,1-trichloroethane)? (2005)

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.