TY - JOUR
T1 - Evaluating the contribution of ingested oil droplets to the bioaccumulation of oil components - A modeling approach
AU - Viaene, Karel P.J.
AU - Janssen, Colin R.
AU - de Hoop, Lisette
AU - Hendriks, A. Jan
AU - De Laender, Frederik
PY - 2014/11/5
Y1 - 2014/11/5
N2 - 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.
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.
KW - Bioaccumulation modeling
KW - Dispersed oil
KW - Oil spill
KW - Polycyclic aromatic hydrocarbons
UR - http://www.scopus.com/inward/record.url?scp=84906706662&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2014.08.040
DO - 10.1016/j.scitotenv.2014.08.040
M3 - Article
C2 - 25173866
AN - SCOPUS:84906706662
SN - 0048-9697
VL - 499
SP - 99
EP - 106
JO - Science of the Total Environment
JF - Science of the Total Environment
ER -