Physicochemical or geochemical

• Robinson, B., Brooks, R. R., Outred, H. A., Kirkman, J. H., (1995), Mercury and arsenic in trout from the Taupo Volcanic Zone and Waikato River, North Island, New Zealand, Chemical Speciation and Bioavailability, 7(1), 27-32, 10.1080/09542299.1995.11083237