Relationship between bioconcentration in fish and steric factors of hydrophobic chemicals

Opperhulzen, Antoon; Volde, Els W.v.d.; Gobas, Frank A.P.C.; Liem, Djlen A.K.; Steen, Jan M.D.v.d.; Hutzinger, O.

doi:10.1016/0045-6535(85)90129-8

Cited by 361 publications

(225 citation statements)

References 43 publications

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“…In general the BCF values are lower than would be predicted by the high hydrophobicity of the PCDDs and PCDFs in both exposure systems. Except for the reduced bioavailability due to organic matter, other reasons have been discussed to explain this lack of bioaccumulation [11], such as biotransformation [23], reduced lipid solubility [24] and reduced membrane permeability [25]. Our results show that reduced bioavailability will have an additional limiting effect.…”

Section: Bioconcentration Factorsmentioning

confidence: 55%

Effect of sediment on the bioaccumulation of a complex mixture of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) by fish

1994

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Section: Bioconcentration Factorsmentioning

confidence: 55%

Effect of sediment on the bioaccumulation of a complex mixture of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) by fish

1994

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“…The patterns of accumulation were related to the biology availability of PCDD/ Fs congeners. Previous investigations suggested that a molecular cross-section >0.95 nm for the PCDD/Fs be less efficiently taken up by organisms (Opperhuizen et al, 1985). The molecular cross-sectional size of most of the higher chlorinated compounds is above 0.95 nm.…”

Section: Pca Results and Pcdd/fs Congener Profilesmentioning

confidence: 88%

Polychlorinated dibenzo-p-dioxins and dibenzofurans in eggs of eight avian species from Dongting Lake, China

et al. 2007

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Concentrations of polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) were determined in eggs of eight avian species collected from Dongting Lake of China to assess residue levels, accumulation patterns, and toxic potential in different avian species. Concentrations of total 2,3,7,8-substituted PCDD/Fs were in the range of 10.8-182 pg g À1 lipid weight. Eggs of great egret and lesser pied kingfisher contained higher levels of PCDD/Fs than eggs of other species, indicating the specific exposure and accumulation of PCDD/Fs relating to feeding habits and the life span. PCDD/Fs congener patterns varied among species. The patterns of PCDD/Fs in the eggs may be influenced by feeding habits, specific elimination, and metabolism. In general, concentrations of PCDDs were higher than those of PCDFs in avian eggs. On basis of lipid weight, total 2,3,7,8-TCDD toxic equivalents (TEQs) calculated based on the WHO TEFs for birds ranged from 2.04 to 42.0 pg g À1; and on basis of wet weight, total WHO-TEQs ranged from 0.19 to 1.59 pg g À1 . 2, 3,7, 2,3,4,7, 2,3,7, 1,2,3,7, were the major contributors to TEQ concentration in most avian eggs, whereas 1,2,3,4,7,8-HxCDD also accounted for a major portion of TEQs in eggs of azure-winged magpie. Values of TEQs in avian eggs were lower than toxic threshold values, implying risk reduction and natural restoration of PCDD/Fs contamination in Dongting Lake region.

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“…Except alpha-cypermethrin, the BSAFs values for other pesticides increased with increasing K ow , indicating that K ow is an appropriate descriptor for the affinity of these four chemicals to worm tissues. However, nonlinear relationships between BSAFs and K ow are often reported and several explanations have been suggested, including a reduction in uptake because of steric hindrance (Opperhuizen et al, 1985) or reduced bioavailability (Gobas et al, 1989;Verhaar et al, 1999).…”

Section: Log Bsafs and Log K Ow Relationshipmentioning

confidence: 99%

Toxicity and bioaccumulation of ethofumesate enantiomers in earthworm Eisenia fetida

Wang

Zhang

et al. 2014

Chemosphere

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Relationship between bioconcentration in fish and steric factors of hydrophobic chemicals

Cited by 361 publications

References 43 publications

Effect of sediment on the bioaccumulation of a complex mixture of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) by fish

Effect of sediment on the bioaccumulation of a complex mixture of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) by fish

Polychlorinated dibenzo-p-dioxins and dibenzofurans in eggs of eight avian species from Dongting Lake, China

Toxicity and bioaccumulation of ethofumesate enantiomers in earthworm Eisenia fetida

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