Levels of lead, arsenic, mercury and cadmium in clays for oral use on the Dutch market and estimation of associated risks

References

• Abrahams PW. 1997. Geophagy (soil consumption) and iron supplementation in Uganda. Trop Med Int Health. 2:617–623.
   PubMed Web of Science ®Google Scholar
• Abrahams PW. 2002. Soils: their implications to human health. Sci Total Environ. 291:1–32.
   PubMed Web of Science ®Google Scholar
• Abrahams PW. 2012. Involuntary soil ingestion and geophagia: a source and sink of mineral nutrients and potentially harmful elements to consumers of earth materials. Appl Geochem. 27:954–968.
   Web of Science ®Google Scholar
• Abrahams PW, Follansbee MH, Hunt A, Smith B, Wragg J. 2006. Iron nutrition and possible lead toxicity; An appraisal of geophagy undertaken by pregnant women of UK Asian communities. Appl Geochem. 21:98–108.
   Web of Science ®Google Scholar
• Abrahams PW, Parsons JA. 1996. Geophagy in the Tropics: a literature review. Geogr J. 162:63–72.
   Web of Science ®Google Scholar
• Al-Rmalli SW, Jenkins RO, Watts MJ, Haris PI. 2010. Risk of human exposure to arsenic and other toxic elements from geophagy: trace element analysis of baked clay using inductively coupled plasma mass spectrometry. Environ Health. 9:79. [Internet] [cited 2012 Jul 2]. Available from: http://www.ehjournal.net/content/9/1/79
   Google Scholar
• [AOAC] Association of Analytical Communities. 19-12-2002. AOAC Guidelines for Single Laboratory Validation of Chemical Methods for Dietary Supplements and Botanicals [Internet]. Gaithersburg (MD). AOAC International; [cited 2012 Apr 4]. Available from: http://www.aoac.org/Official_Methods/slv_guidelines.pdf
   Google Scholar
• Aufreiter S, Hancock RGV, Mahaney WC, Stambolic-Robb A, Sanmugadas K. 1997. Geochemistry and mineralogy of soils eaten by humans. Int J Food Sci Tech. 48:293–305.
   Google Scholar
• Baars AJ, Theelen RMC, Janssen PJC, Hesse JM, Apeldoorn vanME, Meijerink MCM, Verdam L, Zeilmaker MJ. 2001. Re-evaluation of human-toxicological maximum permissible risk levels; Report nr RIVM Report 711701 025 [Internet]. Bilthoven: Dutch National Institute for Public Health and the Environment; [cited 2012 Dec 20]. Available from: http://www.rivm.nl/bibliotheek/rapporten/711701025.pdf
   Google Scholar
• Bakraji EH, Karajou J. 2003. Determination of trace elements in Syrain Bentonite clay using X-ray fluoresence technique and discussion on the health implication on pregnant women. J Trace Microprobe T. 21:397–405.
   Web of Science ®Google Scholar
• Barabasz W, Albińska D, Jaśkowska M, Lipiec J. 2002. Ecotoxicology of aluminum. Pol J Environ Stud. 11:199–203.
   Web of Science ®Google Scholar
• Danford DA. 1982. Pica and nutrition. Ann Rev Nutr. 2:303–322.
   PubMed Web of Science ®Google Scholar
• Dean JR, Deary ME, Gbefa BK, Scott WC. 2004. Characterisation and analysis of persistent organic pollutants and major, minor and trace elements in Calabash chalk. Chemosphere. 57:21–25.
   PubMed Web of Science ®Google Scholar
• de Korte S. 2006. The use of traditional health care in obstetric care by Creole women in Suriname [dissertation] [Internet]. Amsterdam: University of Amsterdam/Academisch Medisch Centrum. [cited 2012 Nov 23]. Available from: http://osodresie.wikispaces.com/file/view/The+use+of+traditional+health+care+in+obstetric+care.pdf
   Google Scholar
• Drexler JW, Brattin WJ. 2007. An in vitro procedure for estimation of lead relative bioavailability: with validation. Human Ecol Risk Assess. 13:383–401.
   Web of Science ®Google Scholar
• EFSA. 2005. Opinion of the Scientific Committee on a request from EFSA related to a harmonised approach for risk assessment of substances which are both genotoxic and carcinogenic. EFSA J. 282:1–31. [Internet]. [cited 2012 Dec 23]. Available from: http://www.efsa.europa.eu/en/efsajournal/doc/282.pdf
   Google Scholar
• EFSA. 2008. Safety of aluminum from dietary intake. EFSA J. 754:1–34. [Internet]. [cited 2012 Dec 20]. Available from: http://www.gencat.cat/salut/acsa/html/ca/dir2948/pdf/754.pdf
   Google Scholar
• EFSA. 2009a. Scientific opinion on arsenic in food. Report nr 7. 1351p. [Internet]. Parma: European food safety authority; [cited 2012 Dec 27]. Available from: http://www.efsa.europa.eu/en/efsajournal/doc/1351.pdf
   Google Scholar
• EFSA. 2009b. Cadmium in food – Scientific opinion of the panel on contaminants in the food chain. EFSA J. 980:1–139. [Internet]. [cited 2012 Dec 27]. Available from: http://www.efsa.europa.eu/de/scdocs/doc/980.pdf
   Google Scholar
• EFSA. 2010. Scientific opinion on lead in food. EFSA J. 8:1570. [Internet]. [cited 2012 Dec 28]. Available from: http://www.efsa.europa.eu/en/efsajournal/doc/1570.pdf
   Google Scholar
• EFSA. 2012. Scientific opinion on the risk for public health related to the presence of mercury and methylmercury in food. EFSA J. 10:2985. [Internet]. [cited 2012 Dec 21]. Available from: http://www.efsa.europa.eu/en/efsajournal/doc/2985.pdf
   Google Scholar
• European Commission. 2002a. Directive 2002/46/EC of the European Parliament and of the Council of 10 June 2002 on the approximation of the laws of the Member States relating to food supplements. Off J Eur Commun. L 183/51 (12.7.2002). [Internet]. [cited 2012 Nov 11]. Available from: http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2002:183:0051:0057:EN:PDF
   Google Scholar
• European Commission. 2002b. Regulation (EC) No. 178/2002 of the European Parliament and the Council of 28 January 2002 laying down the general principles and requirements of food law, establishing the European Food Safety Authority and laying down procedures in matters of food safety. Off J Eur Commun. L31/1 (1.2.2002). [Internet]. [cited 2012 Nov 12]. Available from: http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2002:031:0001:0024:EN:PDF
   Google Scholar
• European Commission. 2006. Commission Regulation (EC) No. 1881/2006 of 19 December 2006 setting maximum levels for certain contaminants in foodstuffs. Off J Eur Union. L 364/5 (20.12.2006). [Internet]. [cited 2012 Nov 12]. Available from: http://eurlex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2006:364:0005:0024:EN:PDF
   Google Scholar
• European Commission. 2007. Commission Regulation (EC) No. 333/2007 of 28 March 2007 laying down the methods of sampling and analysis for the official control of the levels of lead, cadmium, mercury, inorganic tin, 3-MCPD and benzo(a)pyrene in foodstuffs. Off J Eur Commun. L 88/29 (29.3.2007). [Internet]. [cited 2012 Nov 17]. Available from: http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2007:088:0029:0038:EN:PDF
   Google Scholar
• European Commission. 2008. Commission Regulation (EC) No. 629/2008 of 2 July 2008 amending Regulation (EC) No. 1881/2006 setting maximum levels for certain contaminants in foodstuffs. Off J Eur Commun. L 173/6 (3.7.2008). [Internet]. [cited 2012 Nov 12]. Available from: http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2008:173:0006:0009:EN:PDF
   Google Scholar
• Falciani R, Novaro E, Marchesini M, Gucciardi M. 2000. Multi-element analysis of soil and sediment by ICP-MS after a microwave assisted digestion method. J Anal At Spectrom. 15:561–565.
   Web of Science ®Google Scholar
• Food Standards Agency. 2002. Lead Contamination of Calabash Chalk; 15-10-2002. [Internet]. [cited 2012 Dec 29]. Available from: http://www.food.gov.uk/scotland/regsscotland/foodalertsscotland/2002/oct/94273
   Google Scholar
• Geissler PW, Prince RJ, Levene M, Poda C, Beckerleg SE, Mutemi W, Shulman CE. 1999. Perceptions of soil-eating and anaemia among pregnant women on the Kenyan coast. Soc Sci Med. 48:1069–1079.
   PubMed Web of Science ®Google Scholar
• Halsted JA. 1968. Geophagia in man: its nature and nutritional effects. Am J Clin Nutr. 21:1384–1393.
   PubMed Web of Science ®Google Scholar
• Harvey PWJ, Dexter PB, Darnton-Hill I. 2000. The impact of consuming iron from non-food sources on iron status in developing countries. Public Health Nutr. 3:375–383.
   PubMedGoogle Scholar
• Henry J, Matthews Kwong A. 2003. Why is geophagy treated like dirt? Deviant Behav. 24:353–371.
   Web of Science ®Google Scholar
• Hunter JM. 1993. Macrotherme geophagy and pregnancy clays in Southern Africa. J Cult Geogr. 14:69–92.
   Google Scholar
• Ibeanu IGE, Dim LA, Mallam SP, Akpa TC, Munyithya J. 1997. Non-destructive XRF analysis of Nigerian en Kenyan clays. J Radioanal Nucl Ch. 221:207–209.
   Web of Science ®Google Scholar
• IPCS. 2000. Safety evaluation of certain food additives and contaminants. WHO Food Additives Series No. 44. [Internet]. Geneva: World Health Organization. Lead. [cited 2012 Dec 26]. Available from: http://www.inchem.org/documents/jecfa/jecmono/v44jec12.htm
   Google Scholar
• JECFA. 2005. Sixty-fourth meeting Rome, 8–17 February 2005. Summary and conclusions [Internet]. [cited 2012 Dec 2012]. Available from: ftp://ftp.fao.org/es/esn/jecfa/jecfa64_summary.pdf
   Google Scholar
• JECFA. 2007. Safety Evaluation of Certain Food Additives and Contaminants. WHO Food Additives Series No. 58 [Internet]. Geneva: World Health Organisation. Aluminum from all sources, including food additives (addendum); p. 120–198. [cited 2012 Dec 26]. Available from: http://www.inchem.org/documents/jecfa/jecmono/v58je01.pdf
   Google Scholar
• JECFA. 2011a. Safety Evaluation of Certain Contaminants in Food. WHO Food Additives Series No. 63/FAO JECFA Monographs 8 [Internet]. Geneva: World Health Organisation. Arsenic (addendum); p. 153–316. Mercury (addendum); p. 605–684 [cited 2012 Dec 21]. Available from: http://whqlibdoc.who.int/publications/2011/9789241660631_eng.pdf
   Google Scholar
• JECFA. 2011b. Summary and Conclusions of the Seventy-fourth Meeting of the Joint FAO/WHO Expert Committee on Food Additives. Rome, 14–23 June 2011 [Internet]. Geneva: World Health Organisation. Aluminum-containing food additives [cited 2012 Dec 21]. Available from: ftp://ftp.fao.org/ag/agn/jecfa/JECFA_74_Summary_Report_ 4July2011.pdf
   Google Scholar
• Katulek R, Wewalka G, Gundacker C, Auer H, Wilson J, Haluza D, Huhulescu S, Hullier S, Sager M, Prinz A. 2010. Geophagy and potential health implications; geohelminths, microbes and heavy metals. T Roy Soc Trop Med H. 104:787–795.
   PubMed Web of Science ®Google Scholar
• Kawai K, Saathof E, Antelman G, Msamanga G, Fawzi WW. 2009. Geophagy (soil-eating) in relation to anemia and helminth infection among HIV-infected pregnant women in Tanzania. Am J Trop Med Hyg. 80:36–43.
   PubMed Web of Science ®Google Scholar
• Lamb DT, Minga H, Megharaj M, Naidu R. 2009. Heavy metal (Cu, Zn, Cd and Pb) partitioning and bioaccessibility in uncontaminated and long-term contaminated soils. J Hazard Mater. 171:1150–1158.
   PubMed Web of Science ®Google Scholar
• Lin Z, Puls RW. 2000. Adsorbtion, desorbtion and oxidation of arsenic affected by clay materials and aging process. Environ Geol. 39:753–759.
   Web of Science ®Google Scholar
• Madrid F, Biasioli M, Ajmone-Marsan F. 2008. Availability and bioaccessibility of metals in fine particles of some urban soils. Arch Environ Contam Toxicol. 55:21–32.
   PubMed Web of Science ®Google Scholar
• Mahaney WC, Milner MW, Hs M, Hancock RGV, Aufreiter S, Reich M, Wink M. 2000. Mineral and chemical analyses of soils eaten by humans in Indonesia. Int J Environ Health Res. 10:93–109.
   Web of Science ®Google Scholar
• Mol G, Spijker J. 2007. Natuurlijke achtergrondgehalten van zware metalen in de Nederlandse bodem. [Internet]. Alterra-rapport 1460. Alterra, Wageningen [cited 2012 Dec 30]. Available from: http://edepot.wur.nl/1947
   Google Scholar
• Morman SA, Plumlee GS, Smith DB. 2009. Application of in vitro extraction studies to evaluate element bioaccessibility in soils from a transect across the United States and Canada. Appl Geochem. 24:1454–1463.
   Web of Science ®Google Scholar
• Priest ND. 2004. The biological behaviour and bioavailability of aluminum in man, with special reference to studies employing aluminum-26 as a tracer: review and study update. J Environ Monit. 6:375–403.
   PubMed Web of Science ®Google Scholar
• Reeuwijk NM, Talidda A, Malisch R, Kotz A, Tritscher A, Fiedler H, Zeilmaker MJ, Kooijman M, Wienk KJH, Traag WA, Hoogenboom RLAP. 2013. Dioxins (polychlorinated dibenzo-p-dioxins and polychlorinated dibenzo-furans) in traditional clay products used during pregnancy. Chemosphere. 90:1678–1685.
   PubMed Web of Science ®Google Scholar
• Reilly C, Henry J. 2000. Geophagia; why do humans consume soil? Nutr Bull. 25:141–144.
   Google Scholar
• RIVM-RIKILT Front Office Food Safety. 2009. Risk assessment concerning dioxins and heavy metals in clay products for human consumption [Internet]. The Hague: Voedsel en Waren Autoriteit (NVWA); [cited 2012 Dec 30]. Available from: http://www.NVWA.nl/txmpub/files/?p_file_id=42303
   Google Scholar
• RIVM/SIR. 2003. Advies inzake de inname van “calabash chalk” door zwangeren. Advies VWS/VGB inzake “calabash chalk”, project V/320007/01/AA. RIVM/SIR/24-03-2003.
   Google Scholar
• Schuttelaar & Partners. 2003. Kalebaskalk, gebruik in Nederland-concept-. Den Haag 4 juli 2003: Ministerie van VWS.
   Google Scholar
• Smith B, Rawlings BG, Cordeiro MJAR, Hutchins MG, Tiberindwa JV, Sserunjogi L, Tominkins AM. 2000. The bioaccessibility of essential and potentially toxic trace elements in tropical soils from Mukono District, Uganda. J Geol Soc. 157:885–891.
   Web of Science ®Google Scholar
• Smith E, Weber J, Juhasz AL. 2009. Arsenic distribution and bioaccessibility across particle fractions in historically contaminated soils. Environ Geochem Health. 31:85–92.
   PubMed Web of Science ®Google Scholar
• Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service [Internet]. U.S. Department of Agriculture Handbook 18 [cited 2012 Aug 17]. Available from: http://soils.usda.gov/technical/manual/contents/chapter3.html#8
   Google Scholar
• Turpeinen R, Virta M, Häggblom MM. 2003. Analysis of arsenic bioavailability in contaminated soils. Appl Geochem. 22: 1–6.
   Google Scholar
• van der Wielen J, Klerx W, in ‘t Veld P. 2005. Determination of interferences in the analysis of elements in foodstuffs with ICP-MS using collision cell technology (CCT). Paper presented at: European Winter Conference on Plasma Spectroscopy. Feb 2005; Budapest, Hungary.
   Google Scholar
• Vermeer DE. 1971. Geophagy among the Ewe of Ghana. Ethnology Int J Cult Soc Anthropol. 10:56–72.
   Google Scholar
• Wang S, Mulligan CN. 2008. Speciation and surface structure of inorganic arsenic in solid phases: a review. Environ Int. 34:867–879.
   PubMed Web of Science ®Google Scholar
• WHO. 2006. Elemental speciation in human health risk assessment Environmental Health Criteria No. 234. [Internet]. Geneva: World Health Organisation; [cited 2012 Dec 20]. Available from: http://www.inchem.org/documents/ehc/ehc/ehc234.pdf
   Google Scholar
• Yanai J, Noguchi J, Yamada H, Sugihara S, Kilasara M, Kosaki T. 2009. Function of geophagy as supplementation of micronutrients in Tanzania. Soil Sci Plant Nutr. 55:215–223.
   Web of Science ®Google Scholar