VALIDATION OF THE TARGET LIPID MODEL FOR TOXICITY ASSESSMENT OF RESIDUAL PETROLEUM CONSTITUENTS: MONOCYCLIC AND POLYCYCLIC AROMATIC HYDROCARBONS

2009 ◽  
Vol 28 (6) ◽  
pp. 1130 ◽  
Author(s):  
Joy A. McGrath ◽  
Dominic M. Di Toro
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Toxicity Assessment ◽  
Residual Petroleum ◽  
Polycyclic Aromatic ◽  
Target Lipid Model

Polycyclic aromatic hydrocarbons in Dalian soils: distribution and toxicity assessment

2007 ◽  
Vol 9 (2) ◽  
pp. 199-204 ◽  
Author(s):  
Zhen Wang ◽  
Jingwen Chen ◽  
Ping Yang ◽  
Xianliang Qiao ◽  
Fulin Tian
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Toxicity Assessment ◽  
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 The Fate and Toxicity Assessment of Polycyclic Aromatic Hydrocarbons (PAHs) in Water Streams of Malaysia

2016 ◽  
Vol 148 ◽  
pp. 806-811 ◽  
Author(s):  
Amirhossein Malakahmad ◽  
Ming Xian Law ◽  
Ka-Wy Ng ◽  
Teh Sabariah Abd Manan
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Toxicity Assessment ◽  
Polycyclic Aromatic

Distribution, sources, and toxicity assessment of polycyclic aromatic hydrocarbons in surface soils of the Gwangju City, Korea

2017 ◽  
Vol 180 ◽  
pp. 52-60 ◽  
Author(s):  
Mohammad Nazrul Islam ◽  
Mina Park ◽  
Young-Tae Jo ◽  
Xuan Phuc Nguyen ◽  
Seung-Shik Park ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Toxicity Assessment ◽  
Surface Soils ◽  
Polycyclic Aromatic

scholarly journals Assessment of Ecological Safety of Power Plants with Diesel Engines

10.12737/3668 ◽  
2014 ◽  
Vol 3 (2) ◽  
pp. 23-32 ◽  
Author(s):  
Маркова ◽  
V. Markova ◽  
Девянин ◽  
S. Devyanin
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Vegetable Oils ◽  
Aromatic Hydrocarbons ◽  
Diesel Engines ◽  
Power Plants ◽  
Toxicity Assessment ◽  
Ecological Safety ◽  
Assessment Technique ◽  
Exhaust Gases ◽  
Polycyclic Aromatic

Toxicological properties of diesel engines’ exhaust gases, in particular polycyclic aromatic hydrocarbons, as well as diesel engines’ exhaust gases composition, toxicity assessment technique for exhaust gases of diesel engines working at different types of fuel have been presented. Advantages related to use in diesels a biological fuel made on basis of vegetable oils have been shown.

scholarly journals Spatial Occurrence and Sources of Polycyclic Aromatic Hydrocarbons in Sediments Drive the Ecological Risk of Taihu Lake, China

2021 ◽  
Author(s):  
Xiulu Lang ◽  
Xinghua He ◽  
Yanhua Wang ◽  
Xi Chen ◽  
Mingli Zhang ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Ecological Risk ◽  
Aromatic Hydrocarbons ◽  
Surface Sediments ◽  
Taihu Lake ◽  
Central Area ◽  
Toxicity Assessment ◽  
Ecological Risks ◽  
Polycyclic Aromatic

Abstract To study the spatial occurrence, sources, and ecological risks of 16 PAHs, surface sediments had been collected from seven major areas of Taihu Lake, China in April 2021. Results showed that the concentrations of ∑16PAHs varied between 1381.48~4682.16 ng g-1, and the contents of BghiP in each sample were the highest. The PAHs concentrations in the sediments near the lakeshore were much higher than those in the central area of the lake. The sedimentary ∑16PAHs were mainly composed of molecular-weight monomers and 4-ring PAHs showed superiority (35.69%~45.02%). According to the ratio of PAH monomer, the sedimentary PAHs in Taihu Lake were dominantly derived from the combustion. Through the biological toxicity assessment and the BaP equivalent (BaPE), great biological risks of PAHs monomers i.e. DahA and IcdP were found. Both concentrations of ∑16PAHs and dominant 4~6-ring monomers accompanied by carcinogenic risks in many areas of Taihu Lake increased. It is necessary to strengthen monitoring and take measures to control the input of organic pollutants.

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