I am working on the NERC funded Radioactivity in the Environment (RATE) program investigating Long-lived Radionuclides in the Surface Environment (LO-RISE).
The marine workstream, involving SAMS and Edinburgh University, is concerned with the speciation and distribution of important, Sellafield-derived radionuclides (e.g. 14C, U/Ra, 129I) in biota and sediment of the Irish Sea and West of Scotland and incorporation of data into predictive ecosystem models of radionuclide uptake and transfer.
- Environmental radioactivity: The application of natural (uranium decay series) and anthropogenic radionuclides (14C, 137Cs, 241Am etc.) as analogues of geochemical rates and processes in marine and coastal ecosystems; e.g. 14C distribution, geochemistry and fate in coastal UK water and uptake-transfer processes by biota.
- Marine geochemistry, ecology and oceanography; e.g. dynamics of marine particle resuspension, scavenging and removal processes in coastal environments; the application of 210Pb and 137Cs in determining sub-tidal and saltmarsh sediment chronologies, accumulation rates and mixing processes.
- Applied novel radiocarbon (14C) techniques to determine, with high precision, the biocarbon content in flue-gas emissions and bioenergy fraction of mixed waste fuel streams at energy-from-waste (EfW) thermal treatment facilities.
- Biofuels, renewable (biomass) energy technologies, bioenergy production and industry compliance, waste management and sustainable development.
- Novel application of radionuclides to environmental and industrial problems.