Results 51 to 60 of about 3,688,199 (198)

Environmental Contaminant Accumulation in Freshwater Turtles Inhabiting Three Rivers of the Permian Basin, New Mexico, USA

Environmental Toxicology, EarlyView.
ABSTRACT Freshwater turtles are valuable sentinels of aquatic systems due to their long lifespans and resilience in environments impacted by contaminants. The Permian Basin, dominated by the oil and gas sector, spans western Texas and southeastern New Mexico, USA, including the Pecos River and its tributaries, the Delaware and Black Rivers.
Ana G. G. Sapp, W. Gregory Cope, Christopher E. Moorman, Frank X. Weber, Ivana Mali   +4 more
wiley   +1 more source

Experimental Evidence for Mobilization of Mercury From the Eggshell by the Developing Embryo in an Avian Model Organism

Environmental Toxicology, EarlyView.
ABSTRACT Of the many pollutants wildlife is exposed to, mercury ranks among the most toxic. In birds, mercury does not only accumulate within generations, but also is transferred across generations via maternal offloading in eggs, with higher mercury concentrations found in shells of unhatched eggs.
Matteo Beccardi, Justine Bertram, Sandra Bouwhuis, Pablo Salmón, Peter J. Schupp, Oscar Vedder   +5 more
wiley   +1 more source

Ecotoxicological Assessment of Mercury in Fish From a Gold‐Mining‐Impacted Amazonian River: Biomonitoring and Human Health Risk

Environmental Toxicology, EarlyView.
ABSTRACT The Peixoto de Azevedo River, located in northern Mato Grosso, southern Brazilian Amazon, has a long history of artisanal and small‐scale gold mining (ASGM). This study evaluated total mercury (THg) concentrations in fish tissues to assess biomagnification and potential risks.
Augusto Cesar da Costa Castilho, Kleber Solera, Vinícius José Santos Lopes, Gleyce Alves Machado, Ricardo Lopes Tortorela de Andrade, Leandro Dênis Battirola   +5 more
wiley   +1 more source

On the Tris-methylmercury-oxonium Compounds

Croatica Chemica Acta, 1957
The preparation and properties of tris-methylmercury-oxonium fluoborate (CH3Hg)3OBF4 are described. A method for the preparation of methylmercury oxide (CH3Hg)2O by dehydration of methylmercury hydroxide is given. The crystals of tris-methylmercury-oxonium fluoborite have a trigonal symmetry, the hexagonal cell being a = 23.85 A, c = 10.72 A, z = 18 ...
Grdenić, D., Zado, F.
openaire   +2 more sources

Protective Effects of Bee Venom (Apis mellifera) Against Cadmium‐Induced Hepatorenal Toxicity, Oxidative Stress, and Anxiety‐Like Behavior in Rats

Environmental Toxicology, EarlyView.
ABSTRACT Cadmium (Cd) is a persistent environmental heavy metal and a major public health concern because it persists in the body for long periods and gradually accumulates in vital organs, particularly the liver, kidneys, and brain. Chronic Cd exposure promotes the excessive production of reactive oxygen species (ROS), which ultimately leads to ...
Soumaya Ghodbane, Chedli Ellijimi, Rym Elfessi, Ranya Hezzi, Khemaies Ben Rhouma, Hafedh Abdelmelek, Najet Srairi‐Abid, Mohsen Sakly, Riadh Marrouchi   +8 more
wiley   +1 more source

Anticoagulant Rodenticides Contribute to a Decline in an Urban Carnivore

Animal Conservation, EarlyView.
Anticoagulant rodenticides (ARs) have been shown to negatively affect carnivores globally and are closely tied to human activity and development. We examined drivers of annual survival in bobcats persisting on a residentially developed barrier island over 16 years.
Meghan P. Keating, Catherine M. Bodinof Jachowski, Duane R. Diefenbach, James D. Jordan, Nicole M. Nemeth, Thomas R. Rainwater, Gregory K. Yarrow, David S. Jachowski   +7 more
wiley   +1 more source

Atmospheric mercury: recent advances in theoretical, computational, experimental, observational, and isotopic understanding to decipher its redox transformations in the upper and lower atmosphere and interactions with Earth surface reservoirs [PDF]

Atmospheric Chemistry and Physics
Mercury is a volatile heavy element with no known biological function. It is present in trace amounts (on average, ∼ 80 ppb) but is not geochemically well blended in the Earth's crust.
J. O. Sommar, X. Shi, X. Shi, X. Tang, X. Tang, G. Sun, C.-J. Lin, X. Feng, X. Feng   +8 more
doaj   +1 more source

Physicochemical Quality and Chemical Safety of Commercial Wet Cat Food: Composition, Oxidation, Biogenic Amines, and Trace Elements

Journal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT This study investigated the physicochemical characteristics and chemical safety of commercial wet cat foods marketed in Brazil. Twenty products labeled as beef, chicken and fish flavors were analyzed for proximate composition, pH, lipid and protein oxidation, biogenic amines, and essential and potentially toxic trace elements.
Marina Teixeira de Vries Mársico, Eliane Teixeira Mársico, Celso Fasura Balthazar, João Paulo de Sá Felizardo, Roberto Meigikos dos Anjos, Erick Almeida Esmerino, Sérgio Borges Mano   +6 more
wiley   +1 more source

Engineering 2,4,6‐Triaminopyrimidine‐Functionalized Fumed Silica for Highly Selective Hg2+ Detection: Spectroscopic and Theoretical Elucidations

ChemistryOpen, Volume 15, Issue 8, August 2026.
Hg2+ is considered one of the most dangerous heavy metal pollutants. The fumed‐Si‐Pr‐TAP was prepared by functionalizing fumed‐silica with 3‐(chloropropyl)trimethoxysiliane and 2,4,6‐triaminopyrimidine (TAP). Fumed‐Si‐Pr‐TAP can detect Hg2+ ions in aqueous solutions with good sensitivity and selectivity.
Ghodsi Mohammadi Ziarani, Fatemeh Soleymani, Zahra Panahande, Zahra Ahmadi, Alireza Badiei, Senem Akkoc, Mehran Feizi‐Dehnayebi   +6 more
wiley   +1 more source

Redistribution of Sediment and Particulate Mercury Within Upstream Reaches of Galveston Bay in Response to Hurricane Harvey

Journal of Geophysical Research: Oceans, Volume 131, Issue 8, August 2026.
Abstract Extreme storms and flooding can remobilize legacy contaminants stored in the sediment bed; however, event‐scale models that resolve the transport of these materials remain underdeveloped. This study developed a numerical model of contaminated sediment transport during Hurricane Harvey (August 2017), which struck the upstream reaches of ...
Zhiyun Du, Courtney K. Harris, Roberta Southwood, Dongxiao Yin, Daoyang Bao, Fei Ye, Timothy M. Dellapenna, Kehui Xu, Z. George Xue   +8 more
wiley   +1 more source