Bioavailability of Platinum Group Elements to Plants—A Review

Reference Gastrointestinal Absorption Fractions for Radionuclides Ingested in Soil

“…Some PGMs may be more mobile in soil than others as indicated by comparative studies of Pt, Pd, and Rh, which are used in catalytic converters and over time are released to the environment due to deterioration of the catalyst surface (Puls et al, 2012). Rh was found to be adsorbed to soil solids to a lesser extent than Pt or Pd (Herincs et al, 2013), and Pd compounds appear to be more soluble and mobile in the environment than Pt compounds (Feichtmeier and Leopold, 2015). In a study of bioaccessibility of inhaled Pd and Pt, Puls et al (2012) studied their extractability from simulated GI fluids assuming complete transfer of the inhaled metals to the GI tract via mucociliary clearance.…”