1. School of Earth Sciences, University of Western Australia, 35 Stirling Highway, Perth, Western Australia 6009, Australia
2. CSIRO Environment, Private Bag No. 5, Wembley, Western Australia 6913, Australia
3. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
4. Water Corporation of Western Australia, Leederville, Western Australia 6007, Australia