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Cadmium, Lead, and Chromium in Large Game: A Local-Scale Exposure Assessment for Hunters Consuming Meat and Liver of Wild Boar

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Abstract

Heavy metals are ubiquitous in soil, water, and air. Their entrance into the food chain is an important environmental issue that entails risks to humans. Several reports indicate that game meat can be an important source of heavy metals, particularly because of the increasing consumption of game meat, mainly by hunters. We performed an exposure assessment of hunters and members of their households, both adults and children, who consumed wild boar (WB) meat and offal. We estimated the amount of cadmium, lead, and chromium in the tissues of WB hunted in six areas within Viterbo Province (Italy) and gathered data on WB meat and offal consumption by conducting specific diet surveys in the same areas. The exposure to cadmium, lead, and chromium was simulated with specifically developed Monte Carlo simulation models. Cadmium and lead levels in WB liver and meat harvested in Viterbo Province (Italy) were similar to or lower than the values reported in other studies. However, some samples contained these metals at levels greater then the EU limits set for domestic animals. The chromium content of meat or liver cannot be evaluated against any regulatory limit, but our results suggest that the amounts of this metal found in WB products may reflect a moderate environmental load. Our survey of the hunter population confirmed that their consumption of WB meat and liver was greater than that of the general Italian population. This level of consumption was comparable with other European studies. Consumption of WB products contributes significantly to cadmium and lead exposure of both adults and children. More specifically, consumption of the WB liver contributed significantly to total cadmium and lead exposure of members of the households of WB hunters. As a general rule, liver consumption should be kept to a minimum, especially for children living in these hunter households. The exposure to chromium estimated for this population of hunters may be considered to be safe. However, a specific and complete assessment of chromium speciation in relevant dietary and environmental situations should be conducted.

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Acknowledgments

This work was financially supported by the Provincia di Viterbo–Assessorato Ambiente and by the University of Tuscia (RSA 2009–2010). The authors thank A. Sabatini for technical support for laboratory procedures. Hunters participating in the survey are gratefully acknowledged for their collaboration with our study.

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  1. Department of Agriculture, Forests, Nature and Energy, University of Tuscia, 01100, Viterbo, Italy

    P. P. Danieli, F. Serrani, R. Primi, B. Ronchi & A. Amici

  2. Department of Agricultural Biotechnology, Section of Animal Science, University of Firenze, 50144, Firenze, Italy

    M. P. Ponzetta

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  1. P. P. Danieli
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Correspondence to A. Amici.

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Danieli, P.P., Serrani, F., Primi, R. et al. Cadmium, Lead, and Chromium in Large Game: A Local-Scale Exposure Assessment for Hunters Consuming Meat and Liver of Wild Boar. Arch Environ Contam Toxicol 63, 612–627 (2012). https://doi.org/10.1007/s00244-012-9791-2

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