Article
Microbiology
Adrien Vigneron, Perrine Cruaud, Connie Lovejoy, Warwick F. Vincent
Summary: Detailed metagenomic analyses across water column gradients in a remote petroleum-free lake derived from the Arctic Ocean demonstrate microbial production and degradation of hydrocarbons in various depths, from surface freshwaters to dark, saline, anoxic waters. The study reveals that besides Cyanobacteria, members of different phyla such as Flavobacteria, Nitrospina, Deltaproteobacteria, Planctomycetes, and Verrucomicrobia can produce alkanes and alkenes, contributing to the biogenic hydrocarbon sources. Known oil-degrading microorganisms are not well represented in the system, but long-chain hydrocarbon degradation genes are identified in various freshwater and marine lineages. Genes involved in sulfur and nitrogen compound transformations are abundant, indicating strong interconnections with nitrogen and sulfur cycles and potential widespread distribution in the ocean.
Article
Environmental Sciences
Chukwujindu M. A. Iwegbue, Ernest Bebenimibo, Grace Obi, Godswill O. Tesi, Chijioke Olisah, Francis E. Egobueze, Bice S. Martincigh
Summary: This study provides data on the characteristic levels, spatial patterns, sources, and risk of n-alkanes and polycyclic aromatic hydrocarbons in surficial sediments from the Escravos River Basin in Nigeria. The concentrations of these compounds in sediments exceeded guideline values, indicating potential ecological and health risks. The study suggests that these compounds mainly originate from petroleum sources and combustion emissions.
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2021)
Article
Environmental Sciences
Philippe J. Thomas, David C. Eickmeyer, Kristin M. Eccles, Linda E. Kimpe, Emiel Felzel, Abraham Brouwer, Robert J. Letcher, Bruce D. Maclean, Laurie H. M. Chan, Jules M. Blais
Summary: Although the oil and gas industry in Northern Alberta has economic benefits, concerns exist over the impact of increased oil production on the environment and human health. This study linked chemical analysis of sediment cores with biological effect assessments, showing the feasibility of evaluating toxicity in river systems.
ENVIRONMENTAL POLLUTION
(2022)
Article
Marine & Freshwater Biology
E. A. Bogatyrenko, A. Kim, T. Dunkai, A. L. Ponomareva, A. Es'kova, M. L. Sidorenko, A. K. Okulov
Summary: A total of 137 strains of hydrocarbon-oxidizing bacteria have been isolated from three regions of the Sea of Japan, with taxonomic affiliations to Actinobacteria, Firmicutes, and Proteobacteria. The study identifies new bacterial species capable of degrading hydrocarbons, expanding our knowledge of biodegradation potential in the marine environment.
RUSSIAN JOURNAL OF MARINE BIOLOGY
(2021)
Article
Environmental Sciences
V. Suneel, S. Sathish Kumar, R. Balaji, P. Vethamony
Summary: The addition of sediments increased the size of OSAs and resulted in higher depletion of n-alkanes compared to PAHs. The highest depletion of both n-alkanes and PAHs occurred in OSAs of 10-hour continuous mixing. Moreover, the concentration of PAHs in all 36 OSAs exceeded 5000 ng/g, indicating very high pollution levels.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
I. A. Nemirovskaya, A. V. Khramtsova
Summary: This paper analyzes the concentrations and composition of hydrocarbons in the Barents and Kara Seas. The study finds that the concentration of aliphatic hydrocarbons is lower in the Barents Sea and higher in the Kara Sea. Aliphatic hydrocarbons are mainly found in dissolved form in the Barents Sea, while in the Kara Sea they are primarily present in suspended form.
MARINE POLLUTION BULLETIN
(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
Chemistry, Multidisciplinary
Erik B. Schiferle, Wenxu Ge, Bjorn M. Reinhard
Summary: Despite recycling efforts, plastic waste continues to accumulate in the oceans, leading to the production of micro-and nanoscale plastic particles that can transport carcinogens. The fate and potential threats associated with plastics are still largely unknown.
Article
Environmental Sciences
Chengyue Liang, Quanhui Ye, Yong Huang, Zuotao Zhang, Chongyang Wang, Yun Wang, Hui Wang
Summary: Understanding the degradation potentials in PAHs-contaminated sites is essential for effective bioremediation strategies. The pahE gene has been identified as a better functional marker for assessing the biodegradation potential of indigenous PAHs-degrading bacteria. This study investigated the distribution of pahE and its relationship with environmental factors across different PAHs-polluted ecosystems. The results provide insights into the ecophysiology and distribution of aerobic PAHs-degrading bacteria in contaminated sites.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Inna A. Nemirovskaya, Peter O. Zavialov, Anastasia V. Khramtsova
Summary: The study investigates the content and composition of aliphatic hydrocarbons and polycyclic aromatic hydrocarbons in the suspended particulate matter and surface layer of bottom sediments in the Kerch Strait. The findings indicate higher concentrations of aliphatic hydrocarbons in the western part of the strait and lower concentrations of polycyclic aromatic hydrocarbons in the surface sediments. The study also highlights the increase in hydrocarbon content in water and sediments due to pollutant entry into the marine environment.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Yaling Gou, Yun Song, Sucai Yang, Yan Yang, Yanan Cheng, Jiabin Li, Tengfei Zhang, Yanjun Cheng, Hongqi Wang
Summary: This study investigated the effectiveness and efficiency of NaHCO3 as an electron acceptor for the degradation of polycyclic aromatic hydrocarbons (PAHs) by bacteria and archaea in highly contaminated soil. The results showed that CO2 addition promoted PAH degradation and increased soil bacterial abundances with incubation time.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Thiloka Kariyawasam, Gregory S. Doran, Julia A. Howitt, Paul D. Prenzler
Summary: PAHs are harmful pollutants in the environment. Extraction and quantification are important steps to understand contamination and implement remediation. Traditional extraction methods have limitations and newer, more environmentally friendly methods are being explored.
Article
Chemistry, Multidisciplinary
Yuan Gao, Yongqiang Han, Jia Xia, Jingqian Tan, Yao-Ping Wang, Sibo Wang
Summary: The study analyzed the levels and sources of petroleum hydrocarbons in sediments offshore of Leizhou Peninsula and found elevated levels of petrogenic hydrocarbon contamination in the southwestern offshore, likely related to petroleum exploitation in the Beibu Gulf's Maichen and Wushi sags.
Article
Chemistry, Multidisciplinary
Zhichao Wang, Qianli Ma, Xuan Huang, Tian Zhang, Jiawei Shao, Xinglin Zhang, Qian Shen, Xiaochen Wang, Jinjun Shao
Summary: In this study, AnI-SQ and AnI-SeQ, two organic functional materials, were successfully designed and synthesized. Their properties were characterized by theoretical calculations and experiments. The potential application of these materials was demonstrated through the self-assembly of polymeric nanoparticles.
CHINESE CHEMICAL LETTERS
(2022)
Article
Oceanography
Romain Jatiault, Damien Dhont, Florent Besson, Marc Tedetti, Orens Pasqueron de Fommervault, Lies Loncke, Francois Bourrin, Madeleine Goutx, Xavier Durrieu de Madron
Summary: This study utilized fluorescence sensors mounted on unmanned underwater gliders to monitor dissolved hydrocarbons in the ocean, revealing correlations between the signals detected and chlorophyll concentration, oil seep sites, and oxygen levels. The results demonstrate that using gliders equipped with PAH sensors for monitoring is a promising approach, especially when coupled with other systems.
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
(2021)
Article
Marine & Freshwater Biology
E. A. Bogatyrenko, A. Kim, T. Dunkai, A. L. Ponomareva, A. Es'kova, M. L. Sidorenko, A. K. Okulov
Summary: A total of 137 strains of hydrocarbon-oxidizing bacteria have been isolated from three regions of the Sea of Japan, with taxonomic affiliations to Actinobacteria, Firmicutes, and Proteobacteria. The study identifies new bacterial species capable of degrading hydrocarbons, expanding our knowledge of biodegradation potential in the marine environment.
RUSSIAN JOURNAL OF MARINE BIOLOGY
(2021)
Proceedings Paper
Green & Sustainable Science & Technology
E. A. Bogatyrenko, T. I. Dunkai, L. S. Buzoleva, A. V. Kim
3RD INTERNATIONAL CONFERENCE ENVIRONMENT AND SUSTAINABLE DEVELOPMENT OF TERRITORIES: ECOLOGICAL CHALLENGES OF THE 21ST CENTURY
(2018)
