期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 499, 期 -, 页码 99-106出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2014.08.040
关键词
Dispersed oil; Polycyclic aromatic hydrocarbons; Bioaccumulation modeling; Oil spill
资金
- Norwegian Research Council PETROMAKS program - SYMBIOSES (BIP project) [ES468602]
- NRC
- BP Exploration Operating Company Limited
- ConocoPhillips Skandinavia
- ExxonMobil Upstream Research Company
- Eni Norway
- Shell Technology Norway
- Statoil Petroleum
- Total EP Norway
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. (C) 2014 Elsevier B.V. All rights reserved.
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