Uptake of heavy metals from copper and lead spiked sediments by Echinocardium cordatum

This data set describes the concentrations of copper, lead and iron in the calcareous tests of heart urchins that were exposed to spiked sediments for 60 days. Porewater is the water extracted from between sand grains. Filtered porewater has been filtered. DGT stands for Diffuse Gel Transfer. The HCl extraction listed in one of the excel spreadsheets is an extraction from the actual sediment. The fields in this dataset are: Isotope Concentration Porewater Filtered Porewater DGT Porewater