Polycyclic Aromatic Hydrocarbons (PAHs) in Mississippi Seafood from Areas Affected by the Deepwater Horizon Oil Spill

2012 ◽  
Vol 46 (10) ◽  
pp. 5310-5318 ◽  
Author(s):  
Kang Xia ◽  
Gale Hagood ◽  
Christina Childers ◽  
Jack Atkins ◽  
Beth Rogers ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Oil Spill ◽  
Aromatic Hydrocarbons ◽  
Deepwater Horizon ◽  
Deepwater Horizon Oil Spill ◽  
Polycyclic Aromatic

scholarly journals Distribution of petrogenic polycyclic aromatic hydrocarbons (PAHs) in seafood following Deepwater Horizon oil spill

2019 ◽  
Vol 145 ◽  
pp. 200-207 ◽  
Author(s):  
Harshica Fernando ◽  
Hyunsu Ju ◽  
Ramu Kakumanu ◽  
Kamlesh K. Bhopale ◽  
Sharon Croisant ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Oil Spill ◽  
Aromatic Hydrocarbons ◽  
Deepwater Horizon ◽  
Deepwater Horizon Oil Spill ◽  
Polycyclic Aromatic

Migrating Tundra Peregrine Falcons accumulate polycyclic aromatic hydrocarbons along Gulf of Mexico following Deepwater Horizon oil spill

Ecotoxicology ◽  
2015 ◽  
Vol 24 (5) ◽  
pp. 1102-1111 ◽  
Author(s):  
William S. Seegar ◽  
Michael A. Yates ◽  
Gregg E. Doney ◽  
J. Peter Jenny ◽  
Tom C. M. Seegar ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Gulf Of Mexico ◽  
Oil Spill ◽  
Aromatic Hydrocarbons ◽  
Deepwater Horizon ◽  
Deepwater Horizon Oil Spill ◽  
Peregrine Falcons ◽  
Polycyclic Aromatic

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.

scholarly journals Marine Snow Aggregates are Enriched in Polycyclic Aromatic Hydrocarbons (PAHs) in Oil Contaminated Waters: Insights from a Mesocosm Study

2020 ◽  
Vol 8 (10) ◽  
pp. 781
Author(s):  
Hernando P. Bacosa ◽  
Manoj Kamalanathan ◽  
Joshua Cullen ◽  
Dawei Shi ◽  
Chen Xu ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Water Column ◽  
Oil Spill ◽  
Aromatic Hydrocarbons ◽  
Deepwater Horizon ◽  
Marine Snow ◽  
Total Pahs ◽  
Polycyclic Aromatic ◽  
Water Accommodated Fraction

Marine snow was implicated in the transport of oil to the seafloor during the Deepwater Horizon oil spill, but the exact processes remain controversial. In this study, we investigated the concentrations and distributions of the 16 USEPA priority polycyclic aromatic hydrocarbons (PAHs) in marine snow aggregates collected during a mesocosm experiment. Seawater only, oil in a water accommodated fraction (WAF), and Corexit-enhanced WAF (DCEWAF) were incubated for 16 d. Both WAF and DCEWAF aggregates were enriched in heavy molecular weight PAHs but depleted in naphthalene. DCEWAF aggregates had 2.6 times more total 16 PAHs than the WAF (20.5 vs. 7.8 µg/g). Aggregates in the WAF and DCEWAF incorporated 4.4% and 19.3%, respectively of the total PAHs in the mesocosm tanks. Our results revealed that marine snow sorbed and scavenged heavy molecular weight PAHs in the water column and the application of Corexit enhanced the incorporation of PAHs into the sinking aggregates.

scholarly journals Contamination of the Bay of Biscay by polycyclic aromatic hydrocarbons (PAHs) following the T/V “Erika” oil spill

2004 ◽  
Vol 17 (3) ◽  
pp. 243-259 ◽  
Author(s):  
Jacek Tronczyński ◽  
Catherine Munschy ◽  
Karine Héas-Moisan ◽  
Nadège Guiot ◽  
Isabelle Truquet ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Oil Spill ◽  
Aromatic Hydrocarbons ◽  
Bay Of Biscay ◽  
Polycyclic Aromatic
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