1. School of Earth, Atmospheric and Environmental Sciences; Williamson Research Centre for Molecular Environmental Science; University of Manchester; Manchester UK
2. Faculty of Life Sciences; University of Manchester; Manchester UK
3. Faculty of Engineering and Environment; Northumbria University; Newcastle upon Tyne UK
4. Organic Geochemistry Unit; The Cabot Institute; Bristol Biogeochemistry Research Centre; School of Chemistry; Cantock's Close; Bristol University; Bristol UK