Evaluating the contribution of ingested oil droplets to the bioaccumulation of oil components - A modeling approach

Karel P.J. Viaene, Colin R. Janssen, Lisette de Hoop, A. Jan Hendriks, Frederik De Laender

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

The dietary uptake of oil droplets by aquatic organisms has been suggested as a possible exposure pathway for oil-related chemicals. We confronted two bioaccumulation models, one including and one neglecting oil droplet uptake, with measured polycyclic aromatic hydrocarbon (PAH) body burdens of five marine species. The model without oil droplet uptake was able to predict 75% of the observations within one order of magnitude. Total PAH body burdens were predicted within a factor of five. For most species, inclusion of oil droplet uptake did not improve model accuracy, suggesting a negligible contribution of oil droplet uptake to PAH bioaccumulation. Only for Mytilus edulis, model accuracy improved (up to five times) after the inclusion of oil droplet uptake. Our findings suggest filter feeding as a determinant for the PAH uptake via oil droplets, but more research is needed to test this hypothesis.

langue originaleAnglais
Pages (de - à)99-106
Nombre de pages8
journalScience of the Total Environment
Volume499
Les DOIs
étatPublié - 5 nov. 2014

Empreinte digitale

Bioaccumulation
bioaccumulation
droplet
Oils
oil
Polycyclic Aromatic Hydrocarbons
Polycyclic aromatic hydrocarbons
modeling
PAH
Aquatic organisms
filter feeding
aquatic organism

Citer ceci

Viaene, Karel P.J. ; Janssen, Colin R. ; de Hoop, Lisette ; Hendriks, A. Jan ; De Laender, Frederik. / Evaluating the contribution of ingested oil droplets to the bioaccumulation of oil components - A modeling approach. Dans: Science of the Total Environment. 2014 ; Vol 499. p. 99-106.
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abstract = "The dietary uptake of oil droplets by aquatic organisms has been suggested as a possible exposure pathway for oil-related chemicals. We confronted two bioaccumulation models, one including and one neglecting oil droplet uptake, with measured polycyclic aromatic hydrocarbon (PAH) body burdens of five marine species. The model without oil droplet uptake was able to predict 75{\%} of the observations within one order of magnitude. Total PAH body burdens were predicted within a factor of five. For most species, inclusion of oil droplet uptake did not improve model accuracy, suggesting a negligible contribution of oil droplet uptake to PAH bioaccumulation. Only for Mytilus edulis, model accuracy improved (up to five times) after the inclusion of oil droplet uptake. Our findings suggest filter feeding as a determinant for the PAH uptake via oil droplets, but more research is needed to test this hypothesis.",
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Evaluating the contribution of ingested oil droplets to the bioaccumulation of oil components - A modeling approach. / Viaene, Karel P.J.; Janssen, Colin R.; de Hoop, Lisette; Hendriks, A. Jan; De Laender, Frederik.

Dans: Science of the Total Environment, Vol 499, 05.11.2014, p. 99-106.

Résultats de recherche: Contribution à un journal/une revueArticle

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AU - Viaene, Karel P.J.

AU - Janssen, Colin R.

AU - de Hoop, Lisette

AU - Hendriks, A. Jan

AU - De Laender, Frederik

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AB - The dietary uptake of oil droplets by aquatic organisms has been suggested as a possible exposure pathway for oil-related chemicals. We confronted two bioaccumulation models, one including and one neglecting oil droplet uptake, with measured polycyclic aromatic hydrocarbon (PAH) body burdens of five marine species. The model without oil droplet uptake was able to predict 75% of the observations within one order of magnitude. Total PAH body burdens were predicted within a factor of five. For most species, inclusion of oil droplet uptake did not improve model accuracy, suggesting a negligible contribution of oil droplet uptake to PAH bioaccumulation. Only for Mytilus edulis, model accuracy improved (up to five times) after the inclusion of oil droplet uptake. Our findings suggest filter feeding as a determinant for the PAH uptake via oil droplets, but more research is needed to test this hypothesis.

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KW - Dispersed oil

KW - Oil spill

KW - Polycyclic aromatic hydrocarbons

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