Article
Chemistry, Multidisciplinary
Celeste Felion, Ricardo Lopez-Gonzalez, Alan L. Sewell, Rodolfo Marquez, Caroline Gauchotte-Lindsay
Summary: In this study, fluorescently labeled estrogens were developed as surrogates for studying biodegradation in environmental bacteria. The developed analytical methods allow for concurrent analysis of both fluorescent and natural estrogens. It was found that BODIPY-labeled estrogens are viable substitutes for investigating biodegradation processes.
Article
Agriculture, Dairy & Animal Science
Haruka Ukita, Takeshi Yamazaki, Satoshi Yamaguchi, Hayato Abe, Toshimi Baba, Hanako Bai, Masashi Takahashi, Manabu Kawahara
Summary: This study investigated the influence of environmental factors before and after the first calving on the conception rate of dairy cattle. The results showed that the breeding method, semen sexing, milk yield, and interval from calving to first insemination all had an impact on the conception rate. These findings provide guidance for appropriate feeding management strategies and AI implementation strategies.
JOURNAL OF DAIRY SCIENCE
(2022)
Article
Engineering, Environmental
Ziwei Guo, Huan He, Kunqian Liu, Zihui Li, Shicheng Yang, Zhicheng Liao, Chaochao Lai, Xiaomin Ren, Bin Huang, Xuejun Pan
Summary: The abuse of antivirals during the global spread of COVID-19 has led to an increase in drug residues in aquatic environments. However, research on the photolytic mechanism, pathways, and toxicity of these drugs is limited. This study investigated the photolytic behavior and environmental risk of the COVID-19 antiviral ribavirin in wastewater treatment plant effluent, river water, and lake water. The results showed that ribavirin underwent indirect photolysis in these media, mainly through C-N bond cleavage, furan ring splitting, and hydroxyl group oxidation. The photolysis of ribavirin resulted in increased acute toxicity, highlighting the need to consider the toxicity of ribavirin transformation in natural waters and to restrict its usage and discharge.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Mohd Aidy Faizal Johari, Saiful Amri Mazlan, Ubaidillah Ubaidillah, Nur Azmah Nordin, Muntaz Hana Ahmad Khairi, Siti Aishah Abdul Aziz, Michal Sedlacik, Siti Asma' Nikmat Leong
Summary: Magnetorheological elastomer (MRE) materials have potential applications in various fields, but their durability in hostile environments is an important concern. This study focuses on the photodegradation of MRE in the outdoor tropical climate, and investigates the degradation processes through mechanical testing, rheology, and morphological evaluation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Florentina Laura Chiriac, Iuliana Paun, Florinela Pirvu, Vasile Iancu, Toma Galaon
Summary: This study assessed the occurrence, fate, transport, and ecological risks of ten organic UV filters in the aquatic environment of Romania, revealing the predominant compounds in different samples and the risk assessment results for aquatic species.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Marine & Freshwater Biology
Katelyn M. McKindles, Makayla A. Manes, R. Michael McKay, Timothy W. Davis, George S. Bullerjahn
Summary: Planktothrix-specific chytrids are prevalent throughout the bloom period and can exert parasitic pressure on their hosts. Experiment results show that temperatures above 27.1 degrees Celsius can inhibit chytrid infection, while increased conductivity and turbulence in lab also have inhibitory effects on fungal infections.
JOURNAL OF PLANKTON RESEARCH
(2021)
Article
Geochemistry & Geophysics
Ilaria Guagliardi, Tommaso Caloiero, Ernesto Infusino, Giovanni Callegari, Nicola Ricca
Summary: The study found higher HT values in spring water and surface soil samples in the Crati basin, southern Italy, compared to global averages reported previously. While there was a reasonable correlation between HT in spring water and soil, low correlation coefficients were detected between water HT and conductivity and pH. However, the estimation of health risk did not show serious dangers for people living in the studied environment.
Article
Engineering, Environmental
Ning Wang, Lin He, Xiaomin Sun, Xiang Li, Mei Li
Summary: This study investigated the indirect photochemical behavior of BP-3 in natural aquatic environments and the degradation process in AOPs system. Results showed that OH. and 1O2 are key to the transformation of BP-3, and DOM promotes indirect phototransformation. The potential eco-toxicity and health effects of transformation products are lower than that of the parent BP-3, indicating low environmental risks.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Ewa Pawlowicz-Sosnowska, Wioletta Zukiewicz-Sobczak, Pawel Sobczak, Maciej Domanski, Dominik Szwajgier
Summary: The study in eastern Poland showed no contamination of neonicotinoids in water samples from agricultural sites, which can contribute to promoting sustainable development and ensuring environmental and ecological safety.
Article
Engineering, Environmental
Manna Wang, Mohamed Ateia, Yuta Hatano, Chihiro Yoshimura
Summary: Bacterial regrowth after water/wastewater disinfection poses serious risks to public health. This study assessed the regrowth of E. coli in environmental waters after chlorine disinfection, and found that chlorine treatment induced a majority of E. coli to enter a viable but non-culturable state. A second-order regrowth model accurately described the temporal shift of the survival ratio of culturable E. coli. The study highlights the need to investigate the detailed relation of regrowth to environmental conditions.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Lucas Almir Cavalcante Minho, Zenilda de Lourdes Cardeal, Helvecio Costa Menezes
Summary: Reinforcing hollow polypropylene fibers with nanocellulose improves the extractive properties of microporous membranes, making them suitable for long-term sampling of water contaminants. The modified polypropylene hollow fiber grafted with nanocellulose was characterized using various analysis techniques. The miniaturized passive sampling devices equipped with the new material successfully identified a variety of pollutants in environmental waters.
MICROCHEMICAL JOURNAL
(2023)
Article
Engineering, Environmental
Chuan-Wang Yang, Xin Zhang, Li Yuan, Yun-Kun Wang, Guo-Ping Sheng
Summary: Although SERS is a promising technology for sensitive detection of environmental pollutants, its performance can be greatly affected by the environmental matrix. This study investigated the matrix effect of natural waters on SERS analysis and identified natural organic matter (NOM) as the main contributor to the matrix effect. The microheterogeneous repartition of analytes by NOM was found to play the dominating role in interfering with SERS detection.
Article
Multidisciplinary Sciences
Marconi Italo Lourenco da Silva, Ibiara Correia de Lima Almeida Paz, Andressa Silva Jacinto, Marcos Antonio Nascimento, Ana Beatriz Santos de Oliveira, Ingrid Grazieli Althman dos Santos, Francine dos Santos Mota, Fabiana Ribeiro Caldara, Leonie Jacobs
Summary: Environmental enrichment can improve leg health and behavior of broiler chickens without negative effects on performance and yield. This study evaluated the effects of three environmental enrichments (hay bales, step platforms, and laser lights) on subclinical spondylolisthesis prevalence, productivity, behavior, and gait of broiler chickens. The results showed that chickens with access to step platforms or laser lights had lower prevalence of subclinical spondylolisthesis compared to chickens without enrichments or with hay bales. The enrichments also affected other factors such as wing yield, abdominal fat, exploration behavior, and resting behavior.
Article
Chemistry, Analytical
Maria L. de la Hoz-Torres, Antonio J. Aguilar, Diego P. Ruiz, Maria Dolores Martinez-Aires
Summary: The study evaluated the impact of natural ventilation strategies on indoor air quality and acoustic environment. Results showed that specific ventilation strategies have a relevant impact on background noise in indoor spaces, with ventilation rates and background noise varying significantly between different configurations.
Article
Business
Kashif Akram, Alina Saeed, Stefano Bresciani, Shafique Ur Rehman, Alberto Ferraris
Summary: This study examines the mediating role of individual green values between green transformational leadership and environmental performance in the leather industry. The results show that green transformational leadership has a positive effect on environmental performance and contributes to the development of individual green values. However, government regulations do not moderate the relationship between green transformational leadership and individual green values.
JOURNAL OF COMPETITIVENESS
(2022)
Article
Environmental Sciences
Bernard Robaire, Geraldine Delbes, Jessica A. Head, Vicki L. Marlatt, Christopher J. Martyniuk, Stephane Reynaud, Vance L. Trudeau, Jan A. Mennigen
Summary: Studies have mainly focused on the effects of EDCs on adult males and females, but exposure of mature or developing gametes can lead to multigenerational and transgenerational effects. By synthesizing knowledge across vertebrate species, potential mechanisms of EDC effects are discussed, and recommendations for advancing the field are proposed.
ENVIRONMENTAL RESEARCH
(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)
Review
Endocrinology & Metabolism
Yonathan Zohar, Nilli Zmora, Vance L. Trudeau, Jose A. Munoz-Cueto, Matan Golan
Summary: This review article presents a chronological history of fish GnRH biology over the past fifty years, highlighting the paradigm shift in our understanding of GnRH systems and functions in vertebrates, driven by discoveries in fish research.
JOURNAL OF NEUROENDOCRINOLOGY
(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.
Article
Marine & Freshwater Biology
Jonathan Y. Seguin, Johanna Mason, Mark L. Hanson, Bruce P. Hollebone, Diane M. Orihel, Vince P. Palace, Jose Luis Rodriguez-Gil, Jules M. Blais
Summary: Oil spills pose a major risk to the environment, and in this study, the bioaccumulation potential and toxicokinetic parameters of polycyclic aromatic compounds (PACs) and metals were investigated in giant floater mussels following experimental oil spills in a freshwater lake. It was found that exposure to diluted bitumen (dilbit)-contaminated water resulted in increased concentrations of PACs in the mussels, but there was no excess accumulation of metals. The study also showed that alkylated PACs had higher bioaccumulation potential compared to their parent PAC counterparts.
AQUATIC TOXICOLOGY
(2022)
Article
Marine & Freshwater Biology
Cynthia Cheney, Martin Pothier, Philippe J. Thomas, Sailendra Nath Sarma, Alexandre J. Poulain, Jules M. Blais
Summary: This study investigates the contamination of lakes by industrial emissions using sediment analysis and toxicity tests. The results demonstrate the effectiveness of using lake sediment archives to infer missing biomonitoring data in areas affected by human activities.
AQUATIC TOXICOLOGY
(2022)
Article
Environmental Sciences
Lauren Timlick, Jamie Dearnley, Jules M. Blais, Jose L. Rodriguez-Gil, Mark Hanson, Bruce P. Hollebone, Diane M. Orihel, Lisa E. Peters, Sawyer S. Stoyanovich, Vince P. Palace
Summary: The study investigates the chronic exposure of fish to diluted bitumen spills in controlled environments. The results show that fish retrieval significantly decreased at exposures above a certain concentration. At lower concentrations, fish exhibited physiological responses to dilbit-derived polycyclic aromatic compounds. However, there were no significant differences in condition factor or the development of reproductive organs.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2022)
Article
Endocrinology & Metabolism
Chunyu Lu, Di Peng, W. C. K. Udeesha Erandani, Kimberly Mitchell, Christopher J. Martyniuk, Vance L. Trudeau
Summary: The detection and quantification of hormones are crucial for assessing experimental models and diagnosing diseases. Traditional methods involve separate experiments, while the new approach allows simultaneous measurement of different categories of hormones. This study presents a novel sample processing strategy for the simultaneous extraction and detection of peptides, steroids, and proteins.
FRONTIERS IN ENDOCRINOLOGY
(2023)
