Article
Environmental Sciences
Johan Martinsson, Guillaume Pedehontaa-Hiaa, Vilhelm Malmborg, Dan Madsen, Christopher Raaf
Summary: Wildfires are expected to increase with warmer climate, potentially contributing to the mobility and resuspension of long-lived and potentially hazardous radionuclides. Experimental findings suggest Cs-137 tends to remain in ash during combustion, with peat and forest soil showing higher releases.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Environmental Sciences
A. Berthiaume, E. Galarneau, G. Marson
Summary: This article presents the current knowledge on Canadian PAC emission sources, with forest fires dominating the emissions nationally. Non-industrial sources are estimated to be the second largest contributor, showing moderate decreases in recent decades. Industrial point sources have seen considerable reductions, while fugitive emissions from other industrial sources remain a gap in our understanding. Overall, there is uncertainty in emissions data and regional/local scale examination is needed to determine the sources contributing most to human and ecosystem exposure.
ENVIRONMENTAL POLLUTION
(2021)
Review
Environmental Sciences
Derek C. G. Muir, Elisabeth Galarneau
Summary: This review explores the sources and sinks of polycyclic aromatic compounds (PACs) in Canada, with wildfires being the dominant source, while the sinks are less well-understood. The impacts of changing emissions and environmental conditions on PACs in Canada remain uncertain, and further research is needed to assess future trends and implications.
ENVIRONMENTAL POLLUTION
(2021)
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
Chemistry, Multidisciplinary
Rene S. Bitsch, Nicolaj Inunnguaq Jessen, Karl Anker Jorgensen
Summary: Cycloadditions are important reactions in materials science for constructing polycyclic aromatic and heteroaromatic compounds. Recent developments in organocatalysis have allowed for the control of cycloadditions involving an extended number of pi-electrons. This field, known as higher-order cycloadditions, enables the synthesis of polycyclic carbo- and heteroaromatic compounds in two or three dimensions.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Environmental Sciences
Rafael Pimentel, Berit Arheimer
Summary: The largest forest wildfire in Swedish modern history burnt 14,000 ha of Boreal forest in the Vastmanland County during the summer of 2014. The impacts of this wildfire on the hydrological regime were assessed over the three years following the event, showing changes in snow season duration and timing, streamflow behavior, and catchment response. The study demonstrates the usefulness of combining flow signatures and remote sensing products to detect changes in catchment hydrology.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
Yeong Jia Boom, Marie Enfrin, Dai Lu Xuan, Stephen Grist, Dilan Robert, Filippo Giustozzi
Summary: Recycled plastic modified asphalt is a new topic in the road construction industry. This study investigated the use of four types of recycled plastic in asphalt and found that except for the mixture at 180 degrees Celsius, adding recycled plastic can effectively reduce overall emissions.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Jaehyun Lim, Cheolsoo Lim, Sungwoon Jung
Summary: The study on size-segregated ultrafine particles in diesel exhaust revealed that OC and EC peaked at 330-550 nm, with metal elements showing an opposite distribution trend to the OC/EC ratio. Toxic substances like Pb, As, and Cd had low amounts in DEPs, but their cumulative fractions in the ultrafine mode exceeded 50%.
AEROSOL AND AIR QUALITY RESEARCH
(2021)
Article
Environmental Sciences
Katherine L. Hayden, Shao-Meng Li, John Liggio, Michael J. Wheeler, Jeremy J. B. Wentzell, Amy Leithead, Peter Brickell, Richard L. Mittermeier, Zachary Oldham, Cristian M. Mihele, Ralf M. Staebler, Samar G. Moussa, Andrea Darlington, Mengistu Wolde, Daniel Thompson, Jack Chen, Debora Griffin, Ellen Eckert, Jenna C. Ditto, Megan He, Drew R. Gentner
Summary: This study provides the most detailed characterization to date of emissions from boreal forest wildfires, highlighting the complexity of the emissions and their importance for air quality modeling. The results improve the understanding of wildfire emissions and contribute to the verification and improvement of models that predict pollution from such wildfires.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
Article
Environmental Sciences
Yeong Jia Boom, Marie Enfrin, Stephen Grist, Filippo Giustozzi
Summary: This research investigates the fumes generated from producing polymer modified bitumen using different types of recycled plastics. The results show that incorporating recycled plastics can reduce emissions of volatile organic compounds and polycyclic aromatic hydrocarbons. However, specific compound concentrations may spike when recycled plastics are added, despite an overall reduction in concentration.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Yan Wu, Amina Salamova, Marta Venier
Summary: This study characterized PAH source profiles in the Great Lakes atmosphere using nine PAH diagnostic ratios, highlighting the importance of pyrogenic sources and the significant contribution of diesel emissions to traffic-originated PAHs. Temporal analyses revealed increasing contributions from petrogenic sources and volatilization from surfaces, as well as amplified gaps in PAH emissions between diesel and gasoline engines in recent years. The study also confirmed the usefulness of DRs, especially when combined with PMF analysis, while pointing out the limitations of using multiple DRs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Shaorun Lin, Yanhui Liu, Xinyan Huang
Summary: This study focuses on the impact of wildfires on boreal peatlands, considering the influence of environmental temperature on fires and estimating the future depth of burn and carbon emissions through simulation. Results show that if global warming continues, the carbon emissions caused by boreal peatland fires will increase significantly.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Environmental Sciences
Adrianna C. Foster, Jonathan A. Wang, Gerald Frost, Scott J. Davidson, Elizabeth Hoy, Kevin W. Turner, Oliver Sonnentag, Howard Epstein, Logan T. Berner, Amanda H. Armstrong, Mary Kang, Brendan M. Rogers, Elizabeth Campbell, Kimberley R. Miner, Kathleen M. Orndahl, Laura L. Bourgeau-Chavez, David A. Lutz, Nancy French, Dong Chen, Jinyang Du, Tatiana A. Shestakova, Jacquelyn K. Shuman, Ken Tape, Anna-Maria Virkkala, Christopher Potter, Scott Goetz
Summary: Ecosystems in the North American Arctic-Boreal Zone (ABZ) are experiencing increasing disturbances due to climate warming and human activity. However, many of these disturbances are understudied, leading to uncertainty in their impacts on vegetation dynamics and interactions between disturbance types. This review provides a comprehensive summary of the current knowledge of ABZ disturbances and their impacts, as well as identifying gaps in knowledge and priorities for future research.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
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
Christine E. Kuntzemann, Ellen Whitman, Diana Stralberg, Marc-Andre Parisien, Dan K. Thompson, Scott E. Nielsen
Summary: In the boreal forests of North America, the presence of fire refugia is influenced by a combination of bottom-up controls on fuel configuration, top-down climate controls, as well as hydrological, ecological, and topographic heterogeneity. Forested fens have a higher probability of fire refugia compared to upland forests, while forested bogs have a similar likelihood of fire refugia as upland forests. Climate and physical setting are the strongest factors affecting fire refugia in uplands and peatlands, respectively.
Article
Fisheries
Jennifer B. Korosi, Kristen A. Coleman, Grace N. Hoskin, Amanda J. Little, Emily M. Stewart, Joshua R. Thienpont
Summary: This article emphasizes the importance of geographic context in understanding the impact of permafrost thaw on northern freshwater biodiversity. It explores how paleolimnology can characterize the changing geographic template of warming thermokarst landscapes and its implications for biodiversity. The article suggests integrating research in thermokarst lake paleolimnology with hypothesis-testing frameworks used by permafrost hydrologists and biogeochemists, as well as with the Freshwater Circumpolar Biodiversity Monitoring Program. It also advocates for knowledge co-production with northern Indigenous communities. Considering the geographic context in choosing study sites is highlighted as crucial in representing diverse thermokarst landscapes and accounting for fine-scale differences in limnological settings that influence ecosystem response to thermokarst stressors.
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2022)
Article
Environmental Sciences
Kirsten K. Smythe, Colin A. Cooke, Paul E. Drevnick, Robert J. Cornett, Jules M. Blais
Summary: The study found that alkylated polycyclic aromatic compounds (PACs) in sediments from Cold Lake were elevated and increased with the onset of bitumen extraction in the area. The PAC sources to lake sediments were dominantly pyrogenic, likely from historic forest fires, but shifted to more petrogenic sources with expanding oil sands extraction at Cold Lake.
ENVIRONMENTAL POLLUTION
(2022)
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
Multidisciplinary Sciences
John L. Wilkinson, Alistair B. A. Boxall, Dana W. Kolpin, Kenneth M. Y. Leung, Racliffe W. S. Lai, Cristobal Galban-Malagon, Aiko D. Adell, Julie Mondon, Marc Metian, Robert A. Marchant, Alejandra Bouzas-Monroy, Aida Cuni-Sanchez, Anja Coors, Pedro Carriquiriborde, Macarena Rojo, Chris Gordon, Magdalena Cara, Monique Moermond, Thais Luarte, Vahagn Petrosyan, Yekaterina Perikhanyan, Clare S. Mahon, Christopher J. McGurk, Thilo Hofmann, Tapos Kormoker, Volga Iniguez, Jessica Guzman-Otazo, Jean L. Tavares, Francisco Gildasio De Figueiredo, Maria T. P. Razzolini, Victorien Dougnon, Gildas Gbaguidi, Oumar Traore, Jules M. Blais, Linda E. Kimpe, Michelle Wong, Donald Wong, Romaric Ntchantcho, Jaime Pizarro, Guang-Guo Ying, Chang-Er Chen, Martha Paez, Jina Martinez-Lara, Jean-Paul Otamonga, John Pote, Suspense A. Ifo, Penelope Wilson, Nikolina Udikovic-Kolic, Milena Milakovic, Despo Fatta-Kassinos, Lida Ioannou-Ttofa, Jan Vymazal, Bayable A. Kassa, Jeanne Garric, Arnaud Chaumot, Peter Gibba, Ilia Kunchulia, Sven Seidensticker, Gerasimos Lyberatos, Halldor P. Halldorsson, Molly Melling, Thatikonda Shashidhar, Manisha Lamba, Anindrya Nastiti, Adee Supriatin, Nima Pourang, Ali Abedini, Omar Abdullah, Salem S. Gharbia, Francesco Pilla, Benny Chefetz, Tom Topaz, Koffi Marcellin Yao, Bakhyt Aubakirova, Raikhan Beisenova, Lydia Olaka, Jemimah K. Mulu, Peter Chatanga, Victor Ntuli, Nathaniel T. Blama, Sheck Sherif, Ahmad Zaharin Aris, Ley Juen Looi, Mahamoudane Niang, Seydou T. Traore, Rik Oldenkamp, Olatayo Ogunbanwo, Muhammad Ashfaq, Muhammad Iqbal, Ziad Abdeen, Aaron O'Dea, Jorge Manuel Morales-Saldana, Heidi de la Cruz, Ian Navarrete, Fabio Carvalho, Alhaji Brima Gogra, Bashiru M. Koroma, Vesna Cerkvenik-Flajs, Mitja Gombac, Melusi Thwala, Kyungho Choi, Habyeong Kang, John L. Celestino Ladu, Andreu Rico, Priyanie Amerasinghe, Anna Sobek, Gisela Horlitz, Armin K. Zenker, Alex C. King, Jheng-Jie Jiang, Rebecca Kariuki, Madaka Tumbo, Ulas Tezel, Turgut T. Onay, Julius B. Lejju, Yuliya Vystavna, Yuriy Vergeles, Horacio Heinzen, Andres Perez-Parada, Douglas B. Sims, Maritza Figy, David Good, Charles Teta
Summary: Environmental exposure to active pharmaceutical ingredients (APIs) can have negative effects on ecosystems and human health. A global-scale study of API pollution in rivers highlights the highest concentrations in sub-Saharan Africa, south Asia, and South America, primarily in low- to middle-income countries with poor wastewater and waste management infrastructure. The most frequently detected APIs include carbamazepine, metformin, and caffeine, with some concentrations exceeding safe levels for aquatic organisms. Pharmaceutical pollution poses a global threat to environmental and human health and has implications for achieving the United Nations Sustainable Development Goals.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Environmental Sciences
S. Stoyanovich, Z. Yang, M. Hanson, B. P. Hollebone, D. M. Orihel, V Palace, J. R. Rodriguez-Gil, F. Mirnaghi, K. Shah, J. M. Blais
Summary: The physical and chemical properties of dilute bitumens can affect the environmental fate and effects of the compounds. The study found that only a small proportion of polycyclic aromatic compounds (PACs) from dilbit enters the aquatic system, but high concentrations can be found in sediments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Marine & Freshwater Biology
Samuel A. Patterson, Daniel T. J. Denton, Caleb T. Hasler, Jules M. Blais, Mark L. Hanson, Bruce P. Hollebone, Jose Luis Rodriguez-Gil, Valerie S. Langlois, Geraldine Patey, Zeyu Yang, Diane M. Orihel
Summary: This study investigates the effects of experimental spills of diluted bitumen on larval wood frogs. The results suggest that exposure to chemical compounds released from naturally weathered dilbit does not significantly impact survival, growth, or development of the larvae. However, a modest decrease in larval activity is observed.
AQUATIC TOXICOLOGY
(2022)
Article
Environmental Sciences
Leslie J. Saunders, Jose L. Rodriguez-Gil, Sawyer S. Stoyanovich, Linda E. Kimpe, Mark L. Hanson, Bruce P. Hollebone, Diane M. Orihel, Jules M. Blais
Summary: Petroleum oil spills in water can impede the volatilization process and increase the persistence of chemicals in water. This study assesses the impact of diluted bitumen spills on the volatilization of sulfur hexafluoride (SF6) in a lake, and finds that the volatilization rate of SF6 significantly decreases with increasing spill cover.
Article
Biodiversity Conservation
Matthew P. Duda, Frederic Cyr, Gregory J. Robertson, Neal Michelutti, Carsten Meyer-Jacob, April Hedd, William A. Montevecchi, Linda E. Kimpe, Jules M. Blais, John P. Smol
Summary: This study reconstructed the evolutionary process of seabirds in the Northwest Atlantic over approximately 10,000 years using dated lake sediments. It found that climatic oscillations and the North Atlantic Oscillation influenced the colony size of seabirds during the Holocene and Little Ice Age. However, in recent years, the effects of ocean dynamics on seabird colonies have been modified by human interference.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Environmental Sciences
Neal Michelutti, Kathryn E. Hargan, Linda E. Kimpe, John P. Smol, Jules M. Blais
Summary: Lakes in the Arctic and Andean regions are experiencing significant temperature increases, leading to limnological changes. This study used stable isotope composition data to analyze water balance parameters and found that evaporative losses are significant in small Arctic ponds.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2022)
Article
Environmental Sciences
B. R. B. Gregory, J. A. Kissinger, C. Clarkson, L. E. Kimpe, D. C. Eickmeyer, J. Kurek, J. P. Smol, J. M. Blais
Summary: This study found that mink farming in Nova Scotia potentially contributes contaminants such as mercury, polychlorinated biphenyls (PCB), and organochlorine pesticides (OCP) to nearby lakes. Lakes in the catchment area of mink farms had significantly higher mercury and PCB levels compared to downstream lakes and reference lakes. The study also suggests that mink farming may be a source of PCBs in the sediment, along with local agriculture and atmospheric deposition. Additionally, the presence of DDT in lakes near mink farms indicates a possible connection between mink farming and elevated DDT levels, although the source attribution is complicated by mixed land use and historical DDT usage related to forestry. Overall, the study implies a possible association between marine fish meal, fur farms, and aquatic ecosystems in Nova Scotia.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Ecology
Branaavan Sivarajah, Jennifer B. Korosi, Joshua R. Thienpont, Linda E. Kimpe, Jules M. Blais, John P. Smol
Summary: This study investigates the impact of past gold mining activities, urbanization, and climate warming on the lakes in the Yellowknife area, Canada. The diatom assemblage data from lake sediment cores suggest that the lakes closer to the city and mines experienced the highest diatom species turnover, indicating severe impacts from land-use changes and emissions from gold mines. Climate-induced changes to lake thermal properties also affected the diatom assemblages across the gradient of human activities. The study highlights the marked changes in diatom assemblages in the lakes over the past 80 years and the lack of biological recovery since the cessation of mining activities.
Meeting Abstract
Environmental Sciences
Jennifer Keir, Paul A. White, Jules M. Blais, Rocio Aranda-Rodriguez, Tracy L. Kirkham
ENVIRONMENTAL AND MOLECULAR MUTAGENESIS
(2022)
Article
Chemistry, Analytical
Azdajic Mija, Blais M. Jules, Poulain J. Alexandre
Summary: This study investigated the impact of As(v) and sulfate on Hg methylation. It was found that Hg methylation was mainly limited by carbon substrate availability, rather than sulfate as a terminal electron acceptor. Under conditions where carbon was not limited, the addition of sulfate significantly increased the rate of Hg methylation. Furthermore, increasing concentrations of As(v) in sediments significantly decreased the production rate of MeHg, regardless of the sulfate concentration.
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2022)
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)