Article
Environmental Sciences
Brandi S. Echols
Summary: This study aimed to quantitatively determine the toxicity of oil remaining in sediment from the Deepwater Horizon oil spill, and found that less than 13% of toxicity tests on benthic species showed toxicity. There was no clear relationship between toxicity test results, oiling category, or measured total polycyclic aromatic hydrocarbons (PAHs).
MARINE POLLUTION BULLETIN
(2021)
Article
Marine & Freshwater Biology
Victoria McGruer, Alexis J. Khursigara, Jason T. Magnuson, Andrew J. Esbaugh, Justin B. Greer, Daniel Schlenk
Summary: The 2010 Deepwater Horizon oil spill had an impact on the spawning season of coastal species like red drum, which develop rapidly and are sensitive to crude oil exposure. Despite increased pericardial area in red drum larvae exposed to oil, cholesterol biosynthetic genes were not affected. However, free cholesterol levels in the larvae increased significantly, potentially playing a role in the observed oil toxicity across fish species.
AQUATIC TOXICOLOGY
(2021)
Article
Engineering, Environmental
Larissa Montas, Alesia C. Ferguson, Kristina D. Mena, Helena M. Solo-Gabriele, Claire B. Paris
Summary: This study estimated the age-at-sea of weathered oil slicks using a modeling system and used this information to interpret PAH concentration measurements. The study found that the mean percent depletion of PAHs increased with estimated age-at-sea. Alkylated PAHs showed less depletion compared to parent PAHs.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Lindsay K. Biermann, Stephen T. Szedlmayer
Summary: The study found that the Deepwater Horizon oil spill in 2010 had little impact on the age, growth, and mortality of roughtongue bass in the northern Gulf of Mexico. The dominant 2010 year-class, low PAH levels, and similar growth rates to pre-spill measures all indicated minimal effects on the fish population.
MARINE POLLUTION BULLETIN
(2021)
Article
Marine & Freshwater Biology
Emily M. Milton, Maria C. Cartolano, Danielle McDonald
Summary: The study examined the impact of polycyclic aromatic hydrocarbons (PAHs) on the vertebrate stress axis and found that marine vertebrates exposed to Deepwater Horizon (DWH) PAHs may experience stress axis impairment. Chronic stress combined with PAH exposure further exacerbated these effects. The mechanism of impairment may involve downregulation of cyclic adenosine monophosphate (cAMP) and 5-hydroxytryptamine (5-HT) acting as a secondary cortisol secretagogue.
AQUATIC TOXICOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
T. Prabhakar Clement, Gerald F. John
Summary: This review examines recent literature on the issue of tarball contamination from the Deepwater Horizon oil spill and its impact on Gulf of Mexico beaches, with a particular focus on Alabama beaches. Despite remediation efforts, tarball residues continue to contaminate beaches in the Gulf of Mexico. This anthropogenic experiment has provided valuable lessons for scientists and raised challenging questions.
CURRENT OPINION IN CHEMICAL ENGINEERING
(2022)
Review
Oncology
Christian Vogeley, Katharina M. Rolfes, Jean Krutmann, Thomas Haarmann-Stemmann
Summary: This article summarizes the role of AHR in skin carcinogenesis, focusing on its impact on defense mechanisms such as DNA repair, apoptosis, and anti-tumor immune responses, as well as the possible consequences of simultaneous exposure to different AHR-stimulating environmental factors on the development of cutaneous SCC.
FRONTIERS IN ONCOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Lisa Goedtke, Heike Sprenger, Ute Hofmann, Felix F. Schmidt, Helen S. Hammer, Ulrich M. Zanger, Oliver Poetz, Albrecht Seidel, Albert Braeuning, Stefanie Hessel-Pras
Summary: PAHs are environmental pollutants generated by incomplete combustion of organic matter, which can induce their own metabolism by activating AHR and CAR. Most PAHs activate AHR, while non-carcinogenic PAHs tend to activate CAR, leading to the expression of respective target genes. Additionally, an increased PAH ring number is associated with AHR activation and DNA double-strand breaks, while smaller PAHs activate CAR but do not cause DNA damage.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Review
Environmental Sciences
Kailun Sun, Yan Song, Falin He, Mingyang Jing, Jingchun Tang, Rutao Liu
Summary: PAHs are widely distributed persistent organic pollutants in the environment, with major sources being incomplete combustion of fossil fuels and municipal waste incineration. Exposure to PAHs can lead to various adverse effects including carcinogenicity and genotoxicity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Multidisciplinary Sciences
Megan E. Hart, Anna Perez-Umphrey, Philip C. Stouffer, Christine Bergeon Burns, Andrea Bonisoli-Alquati, Sabrina S. Taylor, Stefan Woltmann
Summary: Monitoring of Seaside Sparrow nesting biology revealed no definitive effect of the Deepwater Horizon oil spill on nest survival, with predation being the main cause of nest failure during the study period. Additional research is needed to fully understand the demographic and ecological impacts of various factors on Seaside Sparrows and their predators.
Article
Chemistry, Multidisciplinary
Dennis Popp, Sven M. Elbert, Chantal Barwig, Julian Petry, Frank Rominger, Michael Mastalerz
Summary: The palladium-catalyzed cyclotrimerization of ortho-silylaryl triflates is a well-established method for synthesizing polycyclic aromatic hydrocarbons with triphenylene cores. In the reaction of pyrene with o-silylaryl triflates, higher homologues with eight- and ten-membered rings were unexpectedly formed along with the trimer, and a protocol was developed to isolate all members of this series. This novel class of PAHs was thoroughly investigated using various techniques, including X-ray diffraction, UV/Vis and fluorescence spectroscopy, and theoretical calculations. A mechanistic proposal for the formation of all higher cyclooligomers was supported by density functional theory (DFT) calculations.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Analytical
Mohamed Elsheref, Lena Messina, Matthew A. Tarr
Summary: Oil spills have significant negative effects on marine systems, and previous research has overlooked the importance of photochemistry in the fate of spilled oil. Recent studies have shown that photochemistry plays a crucial role in the transformation of oil after a spill, particularly in emulsification, oxygenation, and microbial interactions. Advanced analytical approaches have also improved our understanding of oil photochemistry after maritime spills.
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2023)
Article
Environmental Sciences
Li-Ping Tao, Xue Li, Ming-Zhu Zhao, Jing-Ru Shi, Si-Qi Ji, Wen-Yuan Jiang, Qiu-Ju Liang, Yu-Hang Lei, Yi-Yao Zhou, Rong Cheng, Zhe Shi, Wenhai Deng, Jiayin Zhu, Shu-Yun Zhang
Summary: Polycyclic aromatic hydrocarbons (PAHs), particularly chrysene, have toxic effects on the liver by increasing relative liver weight and elevated serum ALT levels; the hepatotoxicity of chrysene is dependent on the aryl hydrocarbon receptor (AhR), while Nrf2 plays a crucial role in protecting against oxidative liver injury induced by chrysene.
Article
Environmental Sciences
Daheng Yang, Xiaoqin Chen, Weidong Cao, Cheng Xu, Lin Chang, Guangfeng Long
Summary: Although the association between single PAHs exposure and telomere length has been studied, the relationship between mixed PAHs exposure and telomere length in the general population is still uncertain. This study analyzed 8 PAHs and their correlation with telomere length, finding that mixed PAHs exposure was negatively associated with telomere length. Specifically, 2-napthol and 2-fluorene concentrations showed a significant negative correlation with telomere length. These findings indicate that PAHs may have a negative impact on telomere length in the general population.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Kamilla Arnesen, Thor Anders Aarhaug, Kristian Etienne Einarsrud, Gabriella M. Tranell
Summary: Coal tar pitch, a binder used in the production of anodes for aluminum electrolysis, contains PAHs. The incomplete combustion of PAHs during the baking process leads to emissions. Experimental tests were conducted to examine the effect of temperature and atmosphere on PAH emissions. The results showed that the addition of oxygen significantly reduced the emissions.
Article
Ecology
Leigh M. Damare, Kristin N. Bridges, Matthew M. Alloy, Thomas E. Curran, Brianne K. Soulen, Heather P. Forth, Claire R. Lay, Jeffrey M. Morris, James A. Stoeckel, Aaron P. Roberts
Article
Engineering, Environmental
Kristin N. Bridges, Yan Zhang, Thomas E. Curran, Jason T. Magnuson, Barney J. Venables, Katherine E. Durrer, Michael S. Allen, Aaron P. Roberts
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2018)
Article
Environmental Sciences
Lauren E. Sweet, Andrew T. Revill, Joanna Strzelecki, Sharon E. Hook, Jeffrey M. Morris, Aaron P. Roberts
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2018)
Article
Environmental Sciences
Kristin N. Bridges, Michelle O. Krasnec, Jason T. Magnuson, Jeffrey M. Morris, Michel L. Gielazyn, J. Ruben Chavez, Aaron P. Roberts
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2018)
Article
Environmental Sciences
Jeffrey M. Morris, Michel Gielazyn, Michelle O. Krasnec, Ryan Takeshita, Heather P. Forth, Jana S. Labenia, Tiffany L. Linbo, Barbara L. French, J. Anthony Gill, David H. Baldwin, Nathaniel L. Scholz, John P. Incardona
Article
Environmental Sciences
Myrina Boulais, Julien Vignier, Ai Nin Loh, Fu Lin E. Chu, Claire R. Lay, Jeffrey M. Morris, Michelle O. Krasnec, Aswani Volety
ENVIRONMENTAL POLLUTION
(2018)
Article
Marine & Freshwater Biology
Erin Ussery, Kristin N. Bridges, Zacharias Pandelides, Andrea E. Kirkwood, Dario Bonetta, Barney J. Venables, John Guchardi, Douglas Holdway
AQUATIC TOXICOLOGY
(2018)
Article
Environmental Sciences
Kristin N. Bridges, Jason T. Magnuson, Thomas E. Curran, Andrew Barker, Aaron P. Roberts, Barney J. Venables
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
(2019)
Article
Engineering, Environmental
Kristin N. Bridges, Matthew M. Alloy, Leigh Damare, Ian Palmer, Heather P. Forth, Jeffrey Morris, James A. Stoeckel, Aaron P. Roberts
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Article
Environmental Sciences
Kristin N. Bridges, Christoff G. Furin, Robert F. Gerlach
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)