1. School of Geography; University of Lincoln; Lincoln UK
2. School of Chemical Engineering and Analytical Science; University of Manchester; Manchester UK
3. Department of Earth Sciences - Geochemistry, Faculty of Geosciences; Utrecht University; Utrecht Netherlands
4. PBL Netherlands Environmental Assessment Agency; The Hague Netherlands
5. Environmental Sciences Group; Wageningen University; Wageningen Netherlands
6. School of Chemistry; Monash University; Melbourne Victoria Australia
7. AgSpace Agriculture Ltd; Swindon UK