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Bioaccumulation of Polychlorinated Dibenzo-p-Dioxins and Dibenzofurans in the Foodweb of YA-Er Lake Area, China.
Water Res. 35, 1141-1148 (2001)
Bioaccumulation of PCDD/F in the foodweb was investigated in the Ya-Er Lake area, which was heavily polluted by PCDD/F. The high concentrations of PCDD/F in sediment can be transferred and bioaccumulated by aquatic organisms and humans through various pathways. Benthonic invertebrate animals and aquatic plants with a lot of fibers in the root can accumulate PCDD/F from sediment and water. Snail (Bellamya aeruginosa), shrimp (Macrobranchium sp.) and freshwater mussel (Acuticosta chinensis (Lea)) took up PCDD/F from the water and maintained the emission patterns, whereas fish tended to selectively accumulate 2,3,7,8-substituted isomers. The tissues of fish-eating bird and duck (Anas platyrhynchos) were very highly contaminated by PCDD/F due to ingestion of fish and other aquatic organisms from sediment. The residual concentration in breast milk depended on the original concentration of PCDD/F in the food. A resident in Ya-Er Lake area showed a daily intake of PCDD/ F of about 9.14 pg TEQ/kg body weight/day. This is higher than the tolerable daily intake (TDI) for PCDD/F (1 pg TEQ/kg body weight/day), which was recommended by the World Health Organization (WHO).
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Publication type Article: Journal article
Document type Scientific Article
Keywords PCDD/F; aquatic organism; human tissue; bioaccumulation; biomagnification
ISSN (print) / ISBN 0043-1354
Journal Water Research
Quellenangaben Volume: 35 , Issue: 5, Pages: 1141-1148
Publishing Place Amsterdam [u.a.] ; Jena [u.a.]
Reviewing status Peer reviewed
Institute(s) Institute of Ecological Chemistry (IOEC)