Bioaccessibility and speciation of arsenic in country foods from contaminated sites in Canada
- PMID: 23403097
- DOI: 10.1016/j.scitotenv.2013.01.047
Bioaccessibility and speciation of arsenic in country foods from contaminated sites in Canada
Abstract
Arsenic in foods obtained through foraging or hunting (country foods) in contaminated areas has not been reported; moreover the chemical form (arsenic speciation) is not known. Bioaccessibility extractions can be used to extract the arsenic from samples, giving information about the arsenic that is available for absorption into humans. Bioaccessibility of arsenic was measured in country foods (berries, other plants, mushrooms and hares) collected from contaminated sites in Canada. Arsenic speciation in the bioaccessibility extracts was also determined. Arsenic concentrations in berries ranged from 0.06 to 21 mg/kg, and Labrador tea contained 1.9 mg/kg of arsenic (all wet weight). Arsenic concentrations (wet weight) ranged up to 46 mg/kg in mushrooms, but they were much lower in hare muscle tissue (0.007 to 0.6 mg/kg). Percent bioaccessibility was lowest in berries and plants (means of 12-45%), where the arsenic species were mostly toxic inorganic arsenic. Bioaccessibility was higher in mushrooms and hare meat (means of 22-76%), where along with toxic inorganic arsenic, substantial proportions of less toxic organoarsenic species were measured, including non-toxic arsenobetaine. The speciation patterns were highly variable in both mushrooms and hare meat. Toxic forms of arsenic are present in country foods collected from contaminated areas, but the amounts vary according to and within each sample type. Therefore testing should ideally be carried out for new sample types and locations to estimate exposures to humans.
Crown Copyright © 2013. Published by Elsevier B.V. All rights reserved.
Similar articles
-
Arsenic bioaccessibility in CCA-contaminated soils: influence of soil properties, arsenic fractionation, and particle-size fraction.Sci Total Environ. 2009 Apr 1;407(8):2576-85. doi: 10.1016/j.scitotenv.2008.12.019. Epub 2009 Feb 10. Sci Total Environ. 2009. PMID: 19211134
-
Arsenic transformations in terrestrial small mammal food chains from contaminated sites in Canada.J Environ Monit. 2011 Jun;13(6):1784-92. doi: 10.1039/c1em10225g. Epub 2011 Apr 19. J Environ Monit. 2011. PMID: 21505662
-
Arsenic speciation in the freshwater crayfish, Cherax destructor Clark.Sci Total Environ. 2009 Apr 1;407(8):2650-8. doi: 10.1016/j.scitotenv.2008.12.065. Epub 2009 Feb 14. Sci Total Environ. 2009. PMID: 19223061
-
High levels of inorganic arsenic in rice in areas where arsenic-contaminated water is used for irrigation and cooking.Sci Total Environ. 2011 Oct 15;409(22):4645-55. doi: 10.1016/j.scitotenv.2011.07.068. Epub 2011 Sep 6. Sci Total Environ. 2011. PMID: 21899878 Review.
-
The case for visual analytics of arsenic concentrations in foods.Int J Environ Res Public Health. 2010 May;7(5):1970-83. doi: 10.3390/ijerph7051970. Epub 2010 Apr 28. Int J Environ Res Public Health. 2010. PMID: 20623005 Free PMC article. Review.
Cited by
-
Changes in Arsenic Speciation in Wild Edible Fungi after Different Cooking Processes and Gastrointestinal Digestion.Molecules. 2023 Jan 6;28(2):603. doi: 10.3390/molecules28020603. Molecules. 2023. PMID: 36677657 Free PMC article.
-
Heavy metal bioaccessibility and health risks in the contaminated soil of an abandoned, small-scale lead and zinc mine.Environ Sci Pollut Res Int. 2018 May;25(15):15044-15056. doi: 10.1007/s11356-018-1660-8. Epub 2018 Mar 19. Environ Sci Pollut Res Int. 2018. PMID: 29552721
-
Bioaccessibility and Human Exposure Assessment of Cadmium and Arsenic in Pakchoi Genotypes Grown in Co-Contaminated Soils.Int J Environ Res Public Health. 2017 Aug 29;14(9):977. doi: 10.3390/ijerph14090977. Int J Environ Res Public Health. 2017. PMID: 28850097 Free PMC article.
-
Human exposure to organic arsenic species from seafood.Sci Total Environ. 2017 Feb 15;580:266-282. doi: 10.1016/j.scitotenv.2016.12.113. Epub 2016 Dec 24. Sci Total Environ. 2017. PMID: 28024743 Free PMC article. Review.
-
Human exposure to dietary inorganic arsenic and other arsenic species: State of knowledge, gaps and uncertainties.Sci Total Environ. 2017 Feb 1;579:1228-1239. doi: 10.1016/j.scitotenv.2016.11.108. Epub 2016 Nov 30. Sci Total Environ. 2017. PMID: 27914647 Free PMC article.
Publication types
MeSH terms
Substances
LinkOut - more resources
Full Text Sources
Other Literature Sources
Medical
Miscellaneous