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Blood cadmium, mercury, and lead in children: An international comparison of cities in six European countries, and China, Ecuador, and Morocco
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2012 (English)In: Environment International, ISSN 0160-4120, E-ISSN 1873-6750, Vol. 41, 29-34 p.Article in journal (Refereed) Published
Abstract [en]

Children's blood-lead concentration (B-Pb) is well studied, but little is known about cadmium (B-Cd) and mercury (B-Hg), in particular for central Europe. Such information is necessary for risk assessment and management. Therefore, we here describe and compare B-Pb, B-Cd and B-Hg in children in six European, and three non-European cities, and identify determinants of these exposures. About 50 school children (7-14 years) from each city were recruited (totally 433) in 2007-2008. Interview and questionnaire data were obtained. A blood sample was analyzed: only two laboratories with strict quality control were used. The European cities showed only minor differences for B-Cd (geometric means 0.11-0.17 mu g/L) and B-Pb (14-20 mu g/L), but larger for B-Hg (0.12-0.94 mu g/L). Corresponding means for the non-European countries were 0.21-0.26, 32-71, and 0.3-3.2 mu g/L, respectively. For B-Cd in European samples, traffic intensity close to home was a statistically significant determinant, for B-Hg fish consumption and amalgam fillings, and for B-Pb sex (boys higher). This study shows that European city children's B-Cd and B-Pb vary only little between countries; B-Hg differs considerably, due to varying tooth restoration practices and fish intake. Traffic intensity seemed to be a determinant for B-Cd. The metal concentrations were low from a risk perspective but the chosen non-European cities showed higher concentrations than the cities in Europe. (C) 2011 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
Oxford: Elsevier, 2012. Vol. 41, 29-34 p.
Keyword [en]
Cadmium, Mercury, Lead, Children, Exposure, Biomonitoring
National Category
Environmental Sciences Ecology
URN: urn:nbn:se:umu:diva-53922DOI: 10.1016/j.envint.2011.12.001ISI: 000301684700004OAI: diva2:515275
Available from: 2012-04-12 Created: 2012-04-10 Last updated: 2012-04-12Bibliographically approved

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Lundström, Nils-GöranBergdahl, Ingvar A.
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