The combined measurement of lead concentration and isotope ratios in organisms used as bio-monitors may provide a sensitive and cost-effective monitoring tool allowing an unambiguous assessment of the source of lead in environmental samples. Data presented here shows that dispersion of trace amounts of ore-derived Pb produced distinctive Pb isotope ratio changes in seagrass and oysters acting as sentinel accumulators.
Munksgaard, N., & Parry, D. (2002). Metals, arsenic and lead isotopes in near-pristine estuarine and coastal sediments from northern Australia. Marine and Freshwater Research, 53(3), 719-727. https://doi.org/10.1071/MF01060