Pb speciation in diet consumed and feces excreted by mice ingesting soil-amended diets. Relative amounts of each Pb species (fraction of total Pb) present in diet (D) and in feces (F) during the standard assay period were calculated using Pb speciation data derived from spectral analysis of diet and feces. Treatments as identified in Table 1. PbP is trilead diphosphate (Pb3(PO4)2), Ang is anglesite (PbSO4), Gal is galena (PbS), Pyr is pyromorphite. Reprinted with permission from Bradham, K. D., Diamond, G. L., Nelson, C. M., Noerpel, M., Scheckel, K. G., Elek, B., Chaney, R. L., Ma, Q, and Thomas, D. J. Long-term in situ reduction in soil Pb bioavailability measured in a mouse model. Environmental Science & Technology, 2018, 52(23), 13908-13913. Copyright 2018 American Chemical Society.