The Biogeochemistry research group addresses chemical processes in natural and human-influenced environments. We work across contemporary and palaeo timeframes, within the terrestrial, aquatic and deep Earth environments. Our analytical strengths span inorganic chemistry, stable and radioactive isotopes, noble gases and trace organic analysis. This analytical capability is used to address fundamental and applied research that is closely aligned with policy and practice.
Contemporary nutrient cycling in soil-water-biological systems
From soil to catchment to coast, transfers of carbon, phosphorus and nitrogen are studied to understand the impacts of human activity on nutrient cycles and ecosystems.
Metal toxicology in soils, sediments and waters
Trace metal speciation and bioavailability represent key sources of environmental toxicity. DGT (Diffusive Gradient Thin-films) and DET (Diffusive Equilibrium in Thin-films) technology is used to study the fate and transfer of trace metal species throughout aqueous and terrestrial environments.
Research into the source, fate and behavior of persistent organic pollutants is used to develop a quantitative understanding of the effects of these contaminants within the environment.
Subsurface crustal fluids
Carbon, hydrogen and noble gas isotopes are applied to resolve issues of energy demand, ground water pollution and geological carbon sequestration.
Stable isotopes in lake sediments, speleothems and foraminifera are used to reconstruct environmental conditions throughout the Quaternary.
Radionuclides in the environment
Natural radionuclides are studied as tracers of water and sediments in marine and freshwater environments. The behavior and fate of artificial radionuclides, and their potential impact on Man and ecosystems, are also addressed.