Overview
This study measured platinum and palladium concentrations in 39 fruiting bodies of the edible mushroom Boletus aereus collected from unpolluted soils in Sicily, Italy. The authors calculated bioconcentration factors (BCF) relative to Sicilian soil background and estimated daily intake rates for adult consumers. They conclude that Pd and Pt levels in these mushrooms do not represent a significant accumulation risk relative to other food products reported in the literature.
Key numbers
- Pd: 0.31-3.09 ng/g dry weight in 39 Boletus aereus fruiting bodies
- Pt: 0.21-4.22 ng/g dry weight
- BCF for Pd: 2.4 (vs upper continental crust)
- BCF for Pt: 5.9 (vs upper continental crust)
- Daily intake rate (DIR) worst-case for Pd: 1.85 ug/kg body weight (300 g fresh mushrooms, 50 kg adult)
- Analytical method: ICP-MS for both mushroom tissue and soil substrate
Methods (brief)
ICP-MS analysis of dried and digested mushroom tissue and paired soil substrate. BCF calculated as mushroom concentration divided by soil concentration referenced to upper continental crust values. Daily intake rate calculated assuming 300 g fresh mushroom consumption for a 50 kg adult.
Implications
This page makes the source discoverable for palladium evidence routing. Provides baseline Pd and Pt concentrations in a commercially harvested edible mushroom from an unpolluted Italian region, with BCF and dietary exposure estimates useful for food safety context.
Related evidence
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