determination of trace atmospheric pollutants
biogeochemical cycling of heavy metals
Areas of expertise
The analytical/environmental chemistry group: We're developing ways to determine the very low levels of natural and anthropogenic compounds as they move through the environment.
Determination of trace atmospheric pollutants group: We've developed methods for the determination of many of the hydrofluorocarbons, the replacements for CFCs. However, because of the properties, the HFCs are not amenable to the GC/ECD techniques used for the CFCs. HFCs are present in ambient air at low parts per trillion so we developed concentration, chromatographic and mass spectrometric techniques for their determination.
Biogeochemical cycling of heavy metals group: The speciation of biogeochemical cycling of metals following absorption by soils and sediments is a major topic for environmental study. The interaction of heavy metals like cadmium, copper, lead and zinc with the iron/manganese oxide phase or the organic material (fulvic or humic acids) is being studied particularly at suitably chosen sites in Avonmouth, Mendips and Ringinglow (Sheffield).