Article
Environmental Sciences
Haiyan Li, Xuesong Wang, Yongzhan Mai, Zini Lai, Yanyi Zeng
Summary: This study investigates the cumulative effects of microplastics (MPs) and organic pollutants (OPs) in the environment and organisms. It finds that while MPs have limited influence on the accumulation of poly-cyclic aromatic hydrocarbons (PAHs), they potentially participate in the selective bioaccumulation of low-ring PAHs in fishes based on fish biology. Furthermore, significant correlations between MPs abundance and PAHs in fishes with different feeding and living habits are found.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Marine & Freshwater Biology
Gui-Li Yang, Meng-Jun Huang, Ai-Juan Tan, Shi-Ming Lv
Summary: The study found that high concentrations of MC-LR (>= 25 µg/L), NAP (>= 10 µg/L), and their mixture (>= 10 + 1 µg/L) in eutrophic waters can reduce the growth and chlorophyll-a contents of Landoltia punctata. After 7 days of exposure, starch accumulation in L. punctata does not decrease when exposed to NAP and MC-LR, and the antioxidant responses are enhanced. The results suggest that higher NAP concentrations can enhance the bioaccumulation of MC-LR in L. punctata.
AQUATIC TOXICOLOGY
(2021)
Article
Engineering, Environmental
Jiachao Zhang, Xuanrui Zhang, Tao Hu, Xueyan Xu, Decun Zhao, Xiaoli Wang, Lei Li, Xianzheng Yuan, Chao Song, Shan Zhao
Summary: PAH pollution and antibiotic pollution are common environmental problems in the Yellow River Estuary, China. This study investigated the bioaccumulation and influencing factors of PAHs and antibiotics in aquaculture areas of the Yellow River Estuary. The study found that 3-ring PAHs and fluoroquinolones were dominant contaminants in the area. The concentrations of PAHs and antibiotics in lipid-rich tissues were higher than that in muscle, indicating that lipid content is an important factor affecting bioaccumulation.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Plant Sciences
Nahuel Spinedi, Romina Storb, Elisabet Aranda, Facundo Romani, Maya Svriz, Santiago A. Varela, Javier E. Moreno, Sebastian Fracchia, Juan Cabrera, Ramon Alberto Batista-Garcia, Ines Ponce de Leon, J. Martin Scervino
Summary: The study investigated the physiological response of Marchantia polymorpha to high doses of anthracene, which resulted in reduced plant biomass and altered chloroplast ultrastructure. Despite decreases in chlorophyll content and increases in antioxidant enzyme activity, there were no significant changes in photosynthetic parameters. The research also revealed that the plant can tolerate anthracene stress at low concentrations, but may experience physiological alterations at higher concentrations.
Article
Environmental Sciences
Linjie Zhang, Lilan Zhang, Dong Sun
Summary: Zooplankton play a crucial role in energy transfer in the marine food chain and are the main food source for important fish species. However, current studies often overlook the differences among different zooplankton taxa, leading to inaccurate assessment of their bioaccumulation ability. This study used data from two cruise surveys in the South China Sea to analyze the distribution properties of each zooplankton group. The results showed that smaller zooplankton tended to accumulate low molecular weight polycyclic aromatic hydrocarbons (PAHs), while larger zooplankton were more likely to accumulate high molecular weight PAHs. The complex community structure within plankton communities should be considered when assessing the transfer and bioaccumulation effects of PAHs in the marine food chain.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Murugan Rajadurai, Natchimuthu Karmegam, Soundarapandian Kannan, Ananthanarayanan Yuvaraj, Ramasundaram Thangaraj
Summary: The study demonstrated that the earthworm species Drawida modesta and Lampito mauritii effectively removed polycyclic aromatic hydrocarbons (PAHs) and total petroleum hydrocarbons (TPHs) from oil-contaminated soil. Seed germination assay results showed a significant increase in germination percentage and index in earthworm inoculated treatments.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Fengsong Zhang, Guixiang Zhang, Xiaoyong Liao
Summary: The study demonstrated that the addition of biochars can reduce the dissipation of PAHs in soil and increase their uptake by plants, especially for LMW-PAHs and MMW-PAHs. The significant reduction of Proteobacteria in biochar-amended soils resulted in a slower biodegradation of PAHs.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Agronomy
Claudio Lagos, John Larsen, Alejandra Fuentes, Hector Herrera, Inmaculada Garcia-Romera, Reinaldo Campos-Vargas, Cesar Arriagada
Summary: The co-inoculation of T. viride and F. mosseae significantly promotes phenanthrene dissipation from soil and contributes to alleviating oxidative damage in wheat plants exposed to high levels of phenanthrene.
Article
Environmental Sciences
Jingqian Xie, Ling Tao, Qiang Wu, Shuyi Tu, Bilin Liu, Tian Lin, Lili Yang, Cui Li, Guorui Liu
Summary: This study found for the first time the presence of nine target chlorinated and brominated PAH congeners in squid. The transfer of these carcinogenic halogenated polycyclic aromatic hydrocarbons (HPAHs) in squid is related to global trade. The lipid content of squid is the most significant factor influencing HPAH bioaccumulation, while differences in squid growth and local ocean contamination influenced by geographical distribution also affect HPAH bioaccumulation. International squid trading can affect the redistribution and risk transfer of HPAHs in squid as food. The cancer risks from squid consumption in China and Mexico were increased by 50% and 30%, respectively, due to international squid trading.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Environmental Sciences
Juma John Moses Abayi, Christopher Tombe Gore, Christine Nagawa, Benjamin A. Musa Bandowe, Henry Matovu, Edward Mubiru, Emily Chelangat Ngeno, Silver Odongo, Mika Sillanpaa, Patrick Ssebugere
Summary: The study found high levels of polycyclic aromatic hydrocarbons (PAHs) in sediments and fish from the White Nile near Melut oil fields in South Sudan, with a significant impact on Clarias gariepinus. Bioaccumulation of PAHs in fish was mainly influenced by low molecular weight PAHs, and the predominant source of PAHs in the White Nile environment was petrogenic.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Luisa Albarano, Ilaria De Rosa, Ilaria Santaniello, Maria Montuori, Sara Serafini, Maria Toscanesi, Marco Trifuoggi, Giusy Lofrano, Marco Guida, Giovanni Libralato
Summary: This research examined the short-term effects (48 hours of exposure) of polycyclic aromatic hydrocarbons (PAHs) mixtures on the nauplii and adult of Artemia franciscana. The study found additive or synergic effects for most PAHs combinations, except for naphthalene + phenanthrene which showed an antagonistic effect. The expression level of five stress-response genes in Artemia was also impacted by the PAHs mixtures.
ENVIRONMENTAL POLLUTION
(2023)
Article
Multidisciplinary Sciences
Yusuke Nakakuki, Takashi Hirose, Hikaru Sotome, Min Gao, Daiki Shimizu, Ruiji Li, Jun-Ya Hasegawa, Hiroshi Miyasaka, Kenji Matsuda
Summary: Helically twisted conductive nanocarbon materials are suitable for optoelectronic and electromagnetic molecular devices on the nanometer scale, showing a large effective conjugation length and ultrafast decay dynamics. The extended π-helicenes achieved a large effective conjugation length through helical fusion, leading to an absorption edge in the near-infrared region.
NATURE COMMUNICATIONS
(2022)
Article
Environmental Sciences
Kristen M. Prossner, Hamish J. Small, Ryan B. Carnegie, Michael A. Unger
Summary: Bivalve mollusks, including oysters, have a high susceptibility to accumulating lipophilic organic contaminants, such as polycyclic aromatic hydrocarbons (PAHs), due to their low metabolic potential. The consumption of oysters, which are known to have high levels of PAHs, can pose a serious public health concern in areas with high PAH contamination. This study presents a method to detect and locate complex mixtures of PAHs in oyster tissues using fluorescent immunohistochemistry, providing valuable insights into the internal partitioning mechanisms of PAH-exposed oysters and potential applications for studying PAH distribution in other organisms.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Xiushang Xu, Amy L. Vonder Haar, Rengo Yoshioka, Qizheng Zhang, Serhii Vasylevskyi, Andrew J. Musser, Akimitsu Narita
Summary: A benzo[rst]pentaphene derivative, BPP-MeOPA, was synthesized and characterized by NMR and single-crystal X-ray analysis. Investigation of its photophysical properties, including transient absorption spectroscopy, revealed improved absorption and emission features from an S-1 state with excitonic and charge-transfer character by introducing MeOPA groups.
CHEMICAL COMMUNICATIONS
(2023)
Article
Environmental Sciences
Anna Pouch, Agata Zaborska, Anna Maria Dabrowska, Ksenia Pazdro
Summary: This study examined the concentrations of seven PCBs, HCB, and twelve PAHs in plankton collected from different Arctic fjords. The study found that the concentrations of most contaminants were highest in the zooplankton species Themisto abyssorum, which could be attributed to its predatory feeding strategy. The study also observed significant biomagnification of PCBs and PAHs in zooplankton predator-prey pairs.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Qing Cao, Xiang Wan, Xiubo Shu, Liqiang Xie
Article
Multidisciplinary Sciences
Lei Yao, Alan D. Steinman, Xiang Wan, Xiubo Shu, Liqiang Xie
SCIENTIFIC REPORTS
(2019)
Article
Environmental Sciences
Ying Man, Jiaxi Wang, Nora Fung-yee Tam, Xiang Wan, Wenda Huang, Yu Zheng, Jinpeng Tang, Ran Tao, Yang Yang
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Yanyan Zhao, Yunjun Yan, Liqiang Xie, Lixiao Wang, Yaojia He, Xiang Wan, Qingju Xue
ENVIRONMENT INTERNATIONAL
(2020)
Article
Environmental Sciences
Xiang Wan, Alan D. Steinman, Yurong Gu, Guangwei Zhu, Xiubo Shu, Qingju Xue, Wei Zou, Liqiang Xie
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Environmental Sciences
Rong Zhou, Ru Liu, Weixin Li, Yixuan Wang, Xiang Wan, Ninghui Song, Yue Yu, Jiaming Xu, Yuanqing Bu, Aiguo Zhang
Summary: The study revealed that the toxic effects of atrazine on Caenorhabditis elegans were concentration-dependent, leading to changes in body length, lifespan, intestinal ROS levels, locomotion behavior, and brood size. Additionally, atrazine may influence the biological activities of nematodes by modulating the mtUPR pathway.
Article
Environmental Sciences
Xiang Wan, Chen Cheng, Yurong Gu, Xiubo Shu, Liqiang Xie, Yanyan Zhao
Summary: The study investigated the single and mixture toxic effects of MC-LR and Phe mixtures on aquatic organisms, with results showing that the mixture toxicity was concentration-dependent and exhibited synergistic effects at low concentrations. The protective effects of high concentrations of MC-LR may lead to antagonistic effects. Furthermore, exposure to low concentrations of the mixture had a greater toxic effect on D. magna than either chemical alone.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Pharmacology & Pharmacy
Xiang Wan, Qingchun Guo, Xiaojun Li, Guoxiang Wang, Yanyan Zhao
Summary: This study elucidates the toxic effects and mechanisms of polycyclic aromatic hydrocarbon mixtures on cyanobacteria, and finds that the release of microcystins induced by PAH mixtures may exacerbate risks to the aquatic environment.
Article
Marine & Freshwater Biology
Chen Cheng, Alan D. Steinman, Qingju Xue, Xiang Wan, Liqiang Xie
Summary: Aquatic plants are crucial for maintaining lake water status and ecosystem stability. However, the impact of the cyanotoxin microcystin (MC) on ion homeostasis in these plants and the resulting adverse consequences remain unclear. This study found that MC-LR affected the calcium and hydrogen ion homeostasis in Vallisneria natans. The disruption of ion homeostasis led to reduced accumulation of essential nutrients, changes in nutrient processes, and decreased levels of reactive oxygen species (ROS). The results highlight the potential ecological impacts caused by microcystin.
AQUATIC TOXICOLOGY
(2023)
Article
Environmental Sciences
Xiang Wan, Yanyan Zhao, Xiaoguang Xu, Zongrui Li, Liqiang Xie, Guoxiang Wang, Fei Yang
Summary: The presence of microplastics (MPs) in eutrophic waters and the occurrence of cyanotoxins, including microcystins (MCs), is increasingly reported globally. However, the transportation mechanisms and associated risks of MCs in freshwater environments remain poorly understood. This study investigated the adsorption behavior of microcystin-leucine-arginine (MC-LR) onto polyethylene (PE) and polypropylene (PP) under different aging processes and water conditions. The findings provide insights into the interaction of MPs with hydrophilic cyanotoxins in aqueous ecosystems and the risks associated with their coexistence.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Xiang Wan, Guoxiang Wang, Fei Yang, Yueming Zhu
Summary: Brownification refers to the increasing water color, primarily due to the rise of terrestrial dissolved organic matter in freshwater. It has become a widespread environmental issue as it affects the physicochemical environment and biological communities in aquatic ecosystems. This study conducted an indoor experiment to examine the effects of brownification on a common submerged macrophyte, Potamogeton crispus, and found that while the macrophyte can adapt to low degrees of brownification, excessive water color negatively impacts its growth and inhibits photosynthesis. The study also highlights the sensitivity of epiphytic bacteria to brownification and the potential consequences for macrophytes.