Application of the Target Lipid Model for Deriving Predicted No Effect Concentrations for Wastewater Organisms

2007 ◽  
Vol preprint (2007) ◽  
pp. 1
Author(s):  
Aaron Redman ◽  
Joy McGrath ◽  
Eric Febbo ◽  
Thomas Parkerton ◽  
Daniel Letinski ◽  
...  
Keyword(s):  
Target Lipid Model

Changes in chemical composition and copepod toxicity during petroleum photooxidation

2022 ◽  
Author(s):  
Samuel Katz ◽  
Haining Chen ◽  
David Fields ◽  
Erin Beirne ◽  
Phoebe Keyes ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Oil Spill ◽  
Aromatic Hydrocarbons ◽  
Initial Phase ◽  
Water Solubility ◽  
Deepwater Horizon ◽  
Water Accommodated Fractions ◽  
Polycyclic Aromatic ◽  
Target Lipid Model ◽  
Control Samples

Photoproducts can be formed rapidly in the initial phase of a marine oil spill. However, their toxicity is not well understood. In this study, oil was irradiated, chemically characterized, and tested for toxicity in three copepod species (A. tonsa, T. longicornis, C.finmarchicus). Irradiation led to a depletion of polycyclic aromatic hydrocarbons (PAHs) and n-alkanes in oil residues, along with an enrichment in aromatic and aliphatic oil photoproducts. Target lipid model-based calculations of PAH toxic units (TU-PAH) predicted that PAH toxicities were lower in water accommodated fractions (WAFs) of irradiated oil residues (“irradiated WAFs”) than in WAFs of dark-control samples (“dark WAFs”). In contrast, biomimetic extraction (BE) measurements showed increased bioaccumulation potential of irradiated WAFs compared to dark WAFs, mainly driven by photoproducts present in irradiated oil. In line with the BE results, copepod mortality increased in response to irradiated WAFs compared to dark WAFs. Low copepod toxicities were observed for WAFs produced with photooxidized oil slicks collected during the Deepwater Horizon oil spill. The results of this study suggest that while oil photoproducts have the potential to be a significant source of copepod toxicity, the water solubility of these products might mitigate their toxicity at sea.

Extension and validation of the target lipid model for deriving predicted no-effect concentrations for soils and sediments

2014 ◽  
Vol 33 (12) ◽  
pp. 2679-2687 ◽  
Author(s):  
Aaron D. Redman ◽  
Thomas F. Parkerton ◽  
Miriam Leon Paumen ◽  
Joy A. McGrath ◽  
Klaas den Haan ◽  
...  
Keyword(s):  
Soils And Sediments ◽  
Target Lipid Model

APPLICATION OF THE NARCOSIS TARGET LIPID MODEL TO ALGAL TOXICITY AND DERIVING PREDICTED-NO-EFFECT CONCENTRATIONS

2004 ◽  
Vol 23 (10) ◽  
pp. 2503 ◽  
Author(s):  
Joy A. McGrath ◽  
Thomas F. Parkerton ◽  
Dominic M. Di Toro
Keyword(s):  
Algal Toxicity ◽  
Target Lipid Model

scholarly journals Application of the Target Lipid Model to Assess Toxicity of Heterocyclic Aromatic Compounds to Aquatic Organisms

2021 ◽  
Author(s):  
Joy McGrath ◽  
Gordon Getzinger ◽  
Aaron D. Redman ◽  
Melanie Edwards ◽  
Alberto Martin ◽  
...  
Keyword(s):  
Aromatic Compounds ◽  
Aquatic Organisms ◽  
Target Lipid Model

VALIDATION OF THE NARCOSIS TARGET LIPID MODEL FOR PETROLEUM PRODUCTS: GASOLINE AS A CASE STUDY

2005 ◽  
Vol 24 (9) ◽  
pp. 2382 ◽  
Author(s):  
Joy A. McGrath ◽  
Thomas F. Parkerton ◽  
Ferdi L. Hellweger ◽  
Dominic M. Di Toro
Keyword(s):  
Petroleum Products ◽  
Target Lipid Model

Re-evaluation of target lipid model-derived HC5 predictions for hydrocarbons

2018 ◽  
Vol 37 (6) ◽  
pp. 1579-1593 ◽  
Author(s):  
Joy A. McGrath ◽  
Christopher J. Fanelli ◽  
Dominic M. Di Toro ◽  
Thomas F. Parkerton ◽  
Aaron D. Redman ◽  
...  
Keyword(s):  
Target Lipid Model

scholarly journals Application of the Target Lipid Model and Passive Samplers to Characterize the Toxicity of Bioavailable Organics in Oil Sands Process-Affected Water

2018 ◽  
Vol 52 (14) ◽  
pp. 8039-8049 ◽  
Author(s):  
A. D. Redman ◽  
T. F. Parkerton ◽  
J. D. Butler ◽  
D. J. Letinski ◽  
R. A. Frank ◽  
...  
Keyword(s):  
Oil Sands ◽  
Passive Samplers ◽  
Target Lipid Model
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