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
Jennifer F. Provencher, Philippe J. Thomas, Birgit M. Braune, Bruce Pauli, Gregg Tomy, Ifeoluwa Idowu, Patrick O'Hara, Mark L. Mallory
Summary: Seabirds in the Arctic are exposed to various environmental contaminants. This study focused on polycyclic aromatic compounds (PACs), which have received less attention compared to other contaminants. The study found that fulmars generally had higher PAC concentrations than murres, and the concentrations of most PAC groups were higher in birds from 2007/08 compared to 2018. The exception was the higher concentrations of alkylated congeners of heterocyclic aromatic compounds in murres from 2018, indicating recent exposure to refined petroleum products.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
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
Engineering, Environmental
Caihong Jiang, Shuang Xue, Siyu Zhao, Jijun Sun, Zhaohong Zhang
Summary: This study investigates the influences of dissolved organic matter (DOM) on the photodegradation kinetics and spectroscopic changes of polycyclic aromatic hydrocarbons (PAHs) in ice. The results suggest that the presence of DOM leads to indirect photodegradation of PAHs and significant changes in their spectra. The reactive species derived from DOM play an important role in the photodegradation processes.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Environmental Sciences
Meng Qiao, Weixiao Qi, Huijuan Liu, Jiuhui Qu
Summary: Oxygenated polycyclic aromatic hydrocarbons (OPAHs) have higher concentrations and toxicity in water environments, posing significant ecological risks to surface water ecosystems.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Environmental Sciences
Florence A. O. Udenby, Husein Almuhtaram, Michael J. McKie, Robert C. Andrews
Summary: This study examines the adsorption of organic pollutants by microplastics in freshwater environments and finds that the adsorption is primarily influenced by the size of the microplastic particles, dissolved organic matter, pH, and polymer weathering.
Article
Chemistry, Organic
Yushi Ohno, Shogo Ando, Daisuke Furusho, Ryoyu Hifumi, Yuuya Nagata, Ikuyoshi Tomita, Shinsuke Inagi
Summary: Here, a facile and selective synthesis of cationic azatriphenylene derivatives was achieved through electrochemical intramolecular cyclization, where the key step involves atom-economical C-H pyridination without a transition-metal catalyst or an oxidant. This proposed strategy provides a practical approach for introducing cationic nitrogen (N (+)) into pi-electron systems, thus expanding the molecular design of N (+)-doped polycyclic aromatic hydrocarbons.
Article
Chemistry, Inorganic & Nuclear
Huimin Zhong, Cong Jiang, Jiahui Zou, Guancheng Zhu, Yanyan Huang
Summary: In this study, CeO2-based porous carbonaceous frameworks (CeO2 PCFs) were used as antioxidant nanozymes to scavenge reactive oxygen species and absorb benzo[a]pyrene. CeO2 PCFs exhibited excellent superoxide dismutase-like and catalase-like activity, effectively eliminating superoxide radical, hydroxyl radical, and hydrogen peroxide. The 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) free radical scavenging assay confirmed the free radical scavenging ability of CeO2 PCFs. Furthermore, CeO2 PCFs with large surface area and porous structure efficiently adsorbed benzo[a]pyrene. The designed CeO2 PCFs can serve as new antioxidant nanozymes for scavenging reactive oxygen species and adsorbing polycyclic aromatic hydrocarbons (PAHs).
INORGANIC CHEMISTRY
(2023)
Article
Ecology
Maryam A. Abdulla, Azenith B. Castillo, Christopher Collins, Tom Sizmur
Summary: This study examined the composition, sources, and ecological risk of aliphatic hydrocarbons (AH) and polyaromatic hydrocarbons (PAH) in marine sediments along the western coast of Qatar. The results indicated low pollution levels based on established criteria, but continuous long-term monitoring is necessary to ensure these pollutants do not exceed current levels.
REGIONAL STUDIES IN MARINE SCIENCE
(2023)
Article
Chemistry, Physical
Thomas Liu, Baptiste Carles, Christine Elias, Claire Tonnele, Daniel Medina-Lopez, Akimitsu Narita, Yannick Chassagneux, Christophe Voisin, David Beljonne, Stephane Campidelli, Loic Rondin, Jean-Sebastien Lauret
Summary: In this study, we conducted single-molecule spectroscopy at cryogenic temperatures to investigate the optical properties of graphene quantum dots (GQDs). We found that temperature has an effect on the spectral characteristics of GQDs, and we used density functional theory calculations to explain these observations. Additionally, we discovered that the vibrational features can serve as a unique fingerprint for identifying GQDs.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Review
Environmental Sciences
Mateus Torres Nazari, Viviane Simon, Bruna Strieder Machado, Larissa Crestani, Giovana Marchezi, Gustavo Concolato, Valdecir Ferrari, Luciane Maria Colla, Jeferson Steffanello Piccin
Summary: This study reviews the recent advances, capabilities, and mechanisms of Rhodococcus in bioremediation, highlighting its potential applications but the need for further research to evaluate its effects in real environments, improve efficiency through genetic engineering and consortia with other microorganisms, and isolate new strains from extreme or contaminated environments for bioremediation purposes.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Review
Environmental Sciences
Jamie M. Dearnley, Charles Killeen, Rebecca L. Davis, Vince P. Palace, Gregg T. Tomy
Summary: This article reviews the metabolism and toxicity of polycyclic aromatic compounds (PACs) in fish and presents various methods for analyzing metabolite-containing bile. Recent environmental monitoring studies demonstrate the utility of this technique in assessing oil spill pollution, establishing baseline exposure, and evaluating pollution in urban waterways.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Environmental Sciences
Raimon M. Prats, Barend L. van Drooge, Pilar Fernandez, Joan O. Grimalt
Summary: The concentrations of legacy and currently emitted organic pollutants were analyzed in the water from six high-mountain lakes in the Pyrenees. Passive water sampling using LDPE and SR sheets was conducted over a three-year period between 2017 and 2020. The results showed that HCB concentrations remained the same as those measured two decades ago, while PAHs concentrations were reduced by half. PCB concentrations were lower, but variations could be due to differences in sampling methods. OPEs were measured for the first time and found at high concentrations in some sites. The study also revealed the deposition of pollutants from air to water, except for some OPEs and PCBs that reached equilibrium conditions, and HCB with volatilization fluxes. PAHs and OPEs were affected by atmospheric degradation, supporting their diffusive exchange from air to water, while PCBs and organochlorines were not influenced by photodegradation. These remote lakes in the Pyrenees accumulate both emerging and legacy pollutants due to long-range atmospheric transport.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Jiaxing Lu, Jian Zhang, Huijun Xie, Yuming Jing, Mingde Ji, Zhen Hu
Summary: In this study, a novel wastewater treatment process combining sequencing batch reactor, constructed wetland and microalgal membrane photobioreactor (BCM process) was proposed. The process achieved satisfactory removal of polycyclic aromatic hydrocarbons (PAHs) and their substituted derivatives (SPAHs), and significantly reduced bacterial toxicity and genotoxicity. Microalgae played an important role in ensuring water security.
Article
Engineering, Environmental
Zhiyang Lu, Weijun Tian, Surong Zhang, Meile Chu, Jing Zhao, Bingkun Liu, Kun Yang, Huimin Cao, Zhuo Chen
Summary: This study investigated the spatiotemporal distribution, source, and ecological risk of PAHs and SPAHs in surface sediments in Laizhou Bay. The results showed seasonal differences in concentrations of PAHs and SPAHs and a spatial distribution trend of estuary > coast > offshore. Combustion sources, including petroleum, coal, and biomass, were identified as the main contributors to PAHs and SPAHs. The risk level of PAHs was low-to-moderate, while SPAHs posed a moderate-to-high ecological risk.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
M. Jeddi, F. Karray, A. Battimelli, A. Danel, S. Melliti Ben Garali, M. Tedetti, H. Zaghden, N. Mhiri, P. Sousbie, D. Patureau, S. Sayadi
Summary: This study investigated the chemical composition, microbial community abundance and diversity, and biodegradation potential of coastal sediments in the Sfax coastal area. The findings revealed variations in polycyclic aromatic hydrocarbon content, biodegradation potential, and microbial community composition among different sampling locations. The presence of specific bacterial genera and correlations with environmental factors were identified, suggesting a complex relationship between sediment characteristics and microbial activity.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Ecology
Mar Benavides, Sophie Bonnet, Frederic A. C. Le Moigne, Gabrielle Armin, Keisuke Inomura, Soren Hallstrom, Lasse Riemann, Ilana Berman-Frank, Emilie Poletti, Marc Garel, Olivier Grosso, Karine Leblanc, Catherine Guigue, Marc Tedetti, Cecile Dupouy
Summary: The cyanobacteria Trichodesmium is capable of fixing N2 in the meso- and bathypelagic layers of the ocean. This activity contributes to the nutrient supply for organisms in the mesopelagic zone. The fixation rates of Trichodesmium are affected by hydrostatic pressure and temperature changes.
Article
Environmental Sciences
Hatem Zaghden, Badreddine Barhoumi, Lobna Jlaiel, Catherine Guigue, Lassaad Chouba, Soufiane Touil, Sami Sayadi, Marc Tedetti
Summary: This study investigated the occurrence, origin, and potential ecological risk of dissolved polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and organochlorine pesticides (OCPs) in surface water samples from the Gulf of Gabes. The results showed a wide range of concentrations and identified the main sources of contamination. Risk assessment indicated low risk for PAHs and PCBs, but moderate to severe risk for OCPs.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Ismail Boudriga, Melilotus Thyssen, Amel Zouari, Nicole Garcia, Marc Tedetti, Malika Bel Hassen
Summary: In this study, we assessed the distribution of subsurface ultraphytoplankton community and its environmental factors along a North-South round-trip Mediterranean transect. The most abundant group was Synechococcus, and nanoeukaryotes were the main biomass component. Net primary productivity decreased along the transect and was mainly sustained by Synechococcus.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Sandrine Chifflet, Nicolas Briant, Remi Freydier, Daniel F. Araujo, Marianne Quemeneur, Hana Zouch, Amel Bellaaj-Zouari, Francois Carlotti, Marc Tedetti
Summary: This study uses Cu and Zn isotopic compositions as proxies to investigate sources and metal transfers in the planktonic food webs of the Mediterranean Sea. The findings suggest that geogenic particles are ubiquitous in plankton assemblages and that the planktonic food web enriches heavy isotopes of Cu and Zn at higher trophic levels. It is also observed that biogeochemical processes may impact the isotopic compositions of Cu and Zn in the planktonic community.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Sandrine Chifflet, Nicolas Briant, Javier Angel Tesan-Onrubia, Noureddine Zaaboub, Sirine Amri, Olivier Radakovitch, Daniela Banaru, Marc Tedetti
Summary: Particle-size classes from different zones in the Mediterranean were analyzed for concentrations of biotic metals and metalloids. The offshore zone exhibited higher concentrations of these elements compared to the coastal zones. Atmospheric deposition and local anthropogenic inputs were identified as factors affecting biotic concentrations of certain elements. The biomagnification of essential elements varied in different zones, with copepods playing a significant role in the northern coastal zone.
MARINE POLLUTION BULLETIN
(2023)
Article
Marine & Freshwater Biology
Oumayma Chkili, Marouan Meddeb, Kaouther Mejri Kousri, Sondes Melliti Ben Garali, Nouha Makhlouf Belkhahia, Marc Tedetti, Marc Pagano, Amel Belaaj Zouari, Malika Belhassen, Nathalie Niquil, Asma Sakka Hlaili
Summary: We evaluated the spatial variability in the size structure, community composition, primary production, and carbon fluxes of phytoplankton in the Gulf of Gabes. The results showed high concentrations of nutrients, chlorophyll a, and primary production, indicating eutrophic conditions. The distribution of phytoplankton community was influenced by nutrient gradients, with smaller fractions dominating in the northernmost zone and larger fractions prevailing towards the South and offshore. The herbivorous protozooplankton and metazooplankton were more abundant in these zones, leading to increased herbivory and carbon export.
OCEAN SCIENCE JOURNAL
(2023)
Article
Environmental Sciences
Kaouther Mejri Kousri, Amel Belaaj Zouari, Marouan Meddeb, Oumayma Chkili, Nathalie Niquil, Marc Tedetti, Marc Pagano, Cherif Sammari, Yosra Khammeri, Malika Bel Hassen, Asma Sakka Hlaili
Summary: The structure of the planktonic food web in a productive Mediterranean gulf was examined in different seasons and locations. The study found high nutrient and chlorophyll a concentrations, indicating eutrophication. The composition and grazing rates of microzooplankton and mesozooplankton showed seasonal changes. The trophic links suggested the presence of a multivorous food web in spring and a microbial food web in fall, with variations in the efficiency of carbon export.
Article
Environmental Sciences
Marc Tedetti, Jacek Tronczynski, Francois Carlotti, Marc Pagano, Sana Ben Ismail, Cherif Sammari, Malika Bel Hassen, Karine Desboeufs, Charlotte Poindron, Sandrine Chifflet, Amel Bellaaj Zouari, Moufida Abdennadher, Sirine Amri, Daniela Banaru, Lotfi Ben Abdallah, Nagib Bhairy, Ismail Boudriga, Aude Bourin, Christophe Brach-Papa, Nicolas Briant, Lea Cabrol, Cristele Chevalier, Lassaad Chouba, Sylvain Coudray, Mohamed Nejib Daly Yahia, Thibault de Garidel-Thoron, Aurelie Dufour, Jean-Claude Dutay, Boris Espinasse, Pamela Fierro-Gonzalez, Michel Fornier, Nicole Garcia, Franck Giner, Catherine Guigue, Loic Guilloux, Asma Hamza, Lars-Eric Heimbuerger-Boavida, Stephanic Jacquet, Joel Knoery, Rim Lajnef, Nouha Makhlouf Belkahia, Deny Malengros, Pauline L. Martinot, Anthony Bosse, Jean-Charles Mazur, Marouan Meddeb, Benjamin Misson, Olivier Pringault, Marianne Quemeneur, Olivier Radakovitch, Patrick Raimbault, Christophe Ravel, Vincent Rossi, Chaimaa Rwawi, Asma Sakka Hlaili, Javier Angel Tesan-Onrubia, Bastien Thomas, Melilotus Thyssen, Noureddine Zaaboub, Cedric Garnier
Summary: This paper discusses the experiential feedback and challenges related to the MERITEHIPPOCAMPE cruise in the Mediterranean Sea in spring 2019. The cruise proposed an innovative approach to investigate the accumulation and transfer of contaminants within planktonic food webs. The paper provides detailed information on the cruise operations, including sampling stations, strategy, and parameters analyzed, as well as the environmental conditions during the campaign. Additionally, it presents the articles produced based on the cruise work.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Javier Angel Tesan-Onrubia, Marc Tedetti, Francois Carlotti, Melissa Tenaille, Loic Guilloux, Marc Pagano, Benoit Lebreton, Gael Guillou, Pamela Fierro-Gonzalez, Catherine Guigue, Sandrine Chifflet, Theo Garcia, Ismail Boudriga, Malika Belhassen, Amel Bellaaj Zouari, Daniela Banaru
Summary: During the MERITE-HIPPOCAMPE campaign in the Mediterranean Sea, plankton samples were collected from 10 stations from the French coast to the Gulf of Gabe`s. The study found that the sources of carbon and nutrients in plankton vary depending on the coast and offshore area, and the size and nutritional content of plankton increase with size. The results also highlight spatial variations in the trophic structure of plankton size-fractions, which can contribute to the assessment of plankton as a biological pump of contaminants.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Badreddine Barhoumi, Catherine Guigue, Soufiane Touil, Boris Johnson-Restrepo, Mohamed Ridha Driss, Marc Tedetti
Summary: Many studies have focused on the adverse effects of AHs and PAHs on the environment and human health, particularly in atmospheric particles. However, there is limited information available on AHs and PAHs in the atmospheric gas phase. This study assessed the levels, partitioning, human health risks, and seasonal variations of AHs and PAHs in the atmospheric gas-phase of Bizerte city. The concentrations of AHs and PAHs were significantly higher in the cold season compared to the warm season.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Chloe Tilliette, Frederic Gazeau, Gemma Portlock, Mar Benavides, Sophie Bonnet, Catherine Guigue, Nathalie Leblond, Caroline Lory, Dominique Marie, Maryline Montanes, Elvira Pulido-Villena, Geraldine Sarthou, Marc Tedetti, Maria-Elena Vorrath, Hannah Whitby, Cecile Guieu
Summary: A hotspot of dinitrogen fixation has been identified in the Western Tropical South Pacific (WTSP) Ocean. The injection of hydrothermal fluids has a positive impact on biological nitrogen fixation and organic matter export, which in turn enhances phytoplankton growth and productivity.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Pamela Fierro-Gonzalez, Marc Pagano, Loic Guilloux, Nouha Makhlouf, Marc Tedetti, Francois Carlotti
Summary: Recent studies have shown that plankton plays a crucial role in the transfer of contaminants in the marine environment. The MERITE-HIPPOCAMPE cruise aimed to quantify contaminants in different size fractions of plankton along a transect in the western Mediterranean Sea. The study found that the composition and biomass of zooplankton varied according to size fractions and indicated a shift from herbivory-dominated to more diverse trophic structure among larger fractions.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Catherine Guigue, Javier Angel Tesan-Onrubia, Lea Guyomarc'h, Daniela Banaru, Francois Carlotti, Marc Pagano, Sandrine Chifflet, Deny Malengros, Lassaad Chouba, Jacek Tronczynski, Marc Tedetti
Summary: This study analyzed the distribution of aliphatic and polycyclic aromatic hydrocarbons (AHs and PAHs) in the Mediterranean Sea and investigated their relationship with plankton. The results showed that AHs were mainly of biogenic origin, while the concentrations of PAHs varied among different size fractions of plankton and were influenced by biomass.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Javier Angel Tesan-Onrubia, Lars-Eric Heimbuerger-Boavida, Aurelie Dufour, Mireille Harmelin-Vivien, Isabel Garcia-Arevalo, Joel Knoery, Bastien Thomas, Francois Carlotti, Marc Tedetti, Daniela Banaru
Summary: Plankton in the Mediterranean Sea is influenced by various factors, such as size, food sources, biochemical composition, and trophic level, leading to differences in the bioaccumulation and biomagnification of mercury. Higher concentrations of monomethylmercury are found in oligotrophic regions, and plankton communities in the Southern Mediterranean Sea have lower concentrations compared to the Northern Mediterranean Sea.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)