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Persistent organohalogen contaminants in plasma from groups of humans with different occupations in Bangladesh
Stockholm University, Faculty of Science, Department of Environmental Chemistry.
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2009 (English)In: Chemosphere, ISSN 0045-6535, Vol. 74, no 3, 453-459 p.Article in journal (Refereed) Published
Abstract [en]

The present study is aimed to assess persistent organic halogenated pollutants in humans living in Bangladesh. The results are compared to other similar studies in the region and globally. Human blood plasma were collected from groups of men and women with different occupations, i.e. being students, garment industry workers, employees at the Power Development Board (PDB), all groups in Dhaka, fishermen and fishermen wife's from Dhaka and another group from Barisal district. The plasma was analysed for hexachlorobenzene (HCB), the hexachlorocyclohexane isomers, alpha-HCH, beta-HCH, gamma-HCH and delta-HCH, the DDT group of chemicals, chlordane compounds, trans-chlordane, cis-chlordane, oxychlordane, trans-nonachlor, trans-heptachlorepoxide, methoxychlor and mirex. The most abundant contaminant, in all groups studied, p,p'-DDE is dominating, with p,p'-DDT/ summation operatorDDT ratios indicating recent and ongoing DDT exposure. Among the other pesticides analysed beta-HCH is the most abundant indicating the use of technical HCH products instead of Lindane (gamma-HCH). While the summation operatorDDT is present in the low ppm range the beta-HCH is detected in up to approx. 400ppb, lipid basis. The beta-HCH is most abundant in the groups of students. In contrast to the pesticides analysed very low concentrations of polychlorinated biphenyls (PCB) are present in all study groups, with e.g. CB-153 in the range of 5-30ngg(-1) fat. The concentrations of the DDT group of chemical differ significantly between fishermen and fishermen's wives living and working in the Dhaka area versus those living and working in Barisal. Also, fishermen and their wives had significantly different concentrations of DDT compared to garment industry workers.

Place, publisher, year, edition, pages
2009. Vol. 74, no 3, 453-459 p.
URN: urn:nbn:se:su:diva-16317ISI: 000262821800015PubMedID: 18996566OAI: diva2:182837
Available from: 2009-01-07 Created: 2009-01-07 Last updated: 2010-01-26Bibliographically approved

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