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Projection of Interspecific Competition (PIC) Matrices: A Conceptual Framework for Inclusion in Population Risk Assessments Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-04-23 David H. Miller, Carlie A. LaLone, Daniel L. Villeneuve, Gerald T. Ankley
Accounting for intraspecific and interspecific competition when assessing the effects of chemical and nonchemical stressors is an important uncertainty in ecological risk assessments. We developed novel projection of interspecific competition (PIC) matrices that allow for analysis of population dynamics of two or more species exposed to a given stressor(s) that compete for shared resources within a
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A Comparison of In Vitro Metabolic Clearance of Various Regulatory Fish Species Using Hepatic S9 Fractions Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-04-23 Megan Zercher, Jason A. Coral, Diane Nabb, Griselda Powers, Alan Jones, Karla Johanning
Bioaccumulation predictions can be substantially improved by combining in vitro metabolic rate measurements derived from rainbow trout hepatocytes and/or hepatic S9 fractions with quantitative structure–activity relationship (QSAR) modeling approaches. Compared with in vivo testing guidelines Organisation for Economic Co‐operation and Development (OECD) 305 and Office of Chemical Safety and Pollution
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Acute Toxicity Testing of Pink Salmon (Oncorhynchus gorbuscha) with the Tire Rubber–Derived Chemical 6PPD‐Quinone Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-04-23 Anders Foldvik, Fedor Kryuchkov, Eva Marita Ulvan, Roar Sandodden, Eli Kvingedal
N‐(1,3‐dimethylbutyl)‐N′‐phenyl‐p‐phenylenediamine‐quinone (6PPD‐quinone) is a widespread contaminant of emerging concern resulting from oxidation of 6PPD, which is an antidegradant substance added to tires. The recent identification of 6PPD‐quinone as the cause of acute mortality in coho salmon has quickly motivated studies on 6PPD‐quinone toxicity to other species. Subsequent findings have shown
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Acute Toxicity of the Lampricide 4‐Nitro‐3‐(trifluoromethyl)phenol to the Mussel (Obovaria subrotunda), Its Host (Percina maculata), and a Surrogate Mussel Species (Obovaria olivaria) Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-04-18 Teresa J. Newton, Nicholas A. Schloesser, Cheryl A. Kaye, Chad K. Andresen, Michael A. Boogaard, Christina M. Carter, Ryan J. Ellingson, Courtney A. Kirkeeng, Justin R. Schueller
The risk of lampricide applications (such as 4‐nitro‐3‐[trifluoromethyl]phenol [TFM]) to nontarget fauna continues to be a concern within the Great Lakes Fishery Commission Sea Lamprey Control Program, especially among imperiled aquatic species—such as native freshwater mussels. The Grand River (Ohio, USA) is routinely treated for larval sea lampreys (Petromyzon marinus), and this river contains populations
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Assessing the Combined Effects of Host and Parasite Exposure to Forever Chemicals in an Amphibian–Echinostome System Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-04-17 Melissa E. Lech, Youn J. Choi, Linda S. Lee, Maria S. Sepúlveda, Jason T. Hoverman
Per‐ and polyfluoroalkyl substances (PFAS) are environmental contaminants of growing concern due to their potential negative effects on wildlife and human health. Per‐ and polyfluoroalkyl substances have been shown to alter immune function in various taxa, which could influence the outcomes of host–parasite interactions. To date, studies have focused on the effects of PFAS on host susceptibility to
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Groundwater Leaching Potential of Pesticides: A Historic Review and Critical Analysis Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-04-17 German Araya, Alessandra Perfetti‐Bolaño, Marco Sandoval, Alberto Araneda, Ricardo O. Barra
We evaluated the main leaching indices that have been used for decades for the protection of groundwater against contamination by pesticides. We describe the index classifications in detail and discuss their advantages and limitations relative to their prediction value. Most of the indices have similarities in the types of parameters they use. Some of the similarities are basic physicochemical properties
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In Memoriam: Don Mackay Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-04-17 Frank Wania, Jon A. Arnot, Frank A. P. C. Gobas
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Sediment Toxicity Tests: A Critical Review of Their use in Environmental Regulations Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-04-10 Matti T. Leppanen, Sandrine Sourisseau, Robert M. Burgess, Stuart L. Simpson, Paul Sibley, Michiel T.O. Jonker
Sediments are an integral component of aquatic systems, linking multiple water uses, functions, and services. Contamination of sediments by chemicals is a worldwide problem, with many jurisdictions trying to prevent future pollution (prospective) and manage existing contamination (retrospective). The present review assesses the implementation of sediment toxicity testing in environmental regulations
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Carbon Dioxide Toxicity to Zebra Mussels (Dreissena polymorpha) is Dependent on Water Chemistry Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-04-05 Matthew T. Barbour, Matthew J. Meulemans, Todd J. Severson, Jeremy K. Wise, Diane L. Waller
Carbon dioxide (CO2) is gaining interest as a tool to combat aquatic invasive species, including zebra mussels (Dreissena polymorpha). However, the effects of water chemistry on CO2 efficacy are not well described. We conducted five trials in which we exposed adult zebra mussels to a range of CO2 in water with adjusted total hardness and specific conductance. We compared dose–responses and found differences
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Experimental Study on the Migration and Distribution of Microplastics in Desert Farmland Soil Under Drip Irrigation Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-04-02 Ao Du, Can Hu, Xufeng Wang, Yachuan Zhao, Wenhao Xia, Xianxing Dai, Long Wang, Shufeng Zhang
The microplastics (MPs) formed by broken plastic film may migrate in the soil under drip irrigation. To investigate the migration distribution of MPs in desert farmland soil under drip irrigation conditions, our study was conducted on farmland in Xinjiang (China). A MP drip irrigation penetration migration testing device was set up in combination with Xinjiang farmland irrigation methods to conduct
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Exploring Alternatives for Marine Toxicity Testing: Initial Evaluation of Fish Embryo and Mysid Tests Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-04-01 Dalton S. Allen, Maddie M. Wiencek, Michaela M. Kelly, Katie S. Solomons, Marlo K. Sellin Jeffries
Current regulations require that toxicity assessments be performed using standardized toxicity testing methods, often using fish. Recent legislation in both the European Union and United States has mandated that toxicity testing alternatives implement the 3Rs of animal research (replacement, reduction, and refinement) whenever possible. There have been advances in the development of alternatives for
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Fragrance Encapsulates: Effect of Polymeric Shell Purification Method on the Accuracy of Biodegradability Testing Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-04-01 Katerina Karagianni, Fatimata Kuntzmann‐Dembele, Vladica Bocokic, Antoine Charbonnier, Ian Harrison, Georg Kreutzer, Arturo Mendoza, Karen Jenner
Fragrance encapsulates are widely used in consumer care applications such as fabric softeners or other liquid laundry products; they provide multiple benefits, from fragrance protection in the commercial product to a controlled release and improved sensorial experience for the consumers. Polymeric fragrance encapsulates are in the scope of the EU regulation restricting the use of intentionally added
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Occurrence of Pharmaceutical Micropollutants in Lake Nahuel Huapi, Argentine Patagonia Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-04-01 Sara Guadalupe Beamud, Horacio Fernández, Daniela Nichela, Maria Paula Crego, Marina Gonzalez‐Polo, Lorena Latini, María Belén Aguiar, Lorena Diblasi, María Eugenia Parolo, Pedro Temporetti
Tourism is one of the most important activities for the economy of Nor Patagonia Argentina. In Bariloche City, located on the shores of Lake Nahuel Huapi, both the permanent and the temporary populations have increased significantly in recent decades, and this has not necessarily been accompanied by an improvement in sewage networks. Emerging micropollutants such as pharmaceutical compounds reach aquatic
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STYGOTOX: A Quality‐Assessed Database of (Eco)Toxicological Data on Stygofauna and Other Aquatic Subterranean Organisms Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-29 Wietse Groote‐Woortmann, Kathryn Korbel, Grant C. Hose
We have compiled the toxicity data on stygofauna and other aquatic subterranean organisms in one (eco)toxicological database. A total of 46 studies were found, containing 472 toxic endpoints covering 43 different stressors. These compounds were tested on subterranean organisms from four phyla, 12 orders, 24 genera, and 55 species. The studies included were published between 1976 and December 2023 using
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Size Distributions and Health Risks of Particulate Polycyclic Aromatic Hydrocarbons in the Atmosphere at Coastal Areas in Ningbo, China Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-29 Keqiang Wang, Yasheng Shi, Jingjing Zhang, Lei Tong, Dan Li, Jie Zheng, Hang Xiao
Most current research focusing on the health risk assessments of particulate polycyclic aromatic hydrocarbons (PAHs) have not analyzed the size distributions and human respiratory deposition rates. In the present study, size‐separated particulate matter (PM) was collected in the coastal area of Ningbo using an Anderson eight‐stage air sampler over a 1‐year period (2014–2015). The 16 US Environmental
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A Quantitative Analysis of Microplastics in the Gastrointestinal Tracts of Odontocetes in the Southeast Region of the United States Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-28 Julia M. Courville, Rose Borkowski, Lucy Sonnenberg, Gretchen K. Bielmyer‐Fraser
Microplastics (<5 mm in diameter) are ubiquitous in the oceanic environment, yet microplastic accumulation in marine mammals is vastly understudied. In recent years, efforts have been made to document microplastic profiles in odontocetes. The objective of the present study was to describe and quantify microplastics in the gastrointestinal (GI) tracts of deceased odontocetes that stranded in the southeastern
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Chronic Effects of an Insect Growth Regulator (teflubenzuron) on the Life Cycle and Population Growth Rate of Folsomia candida Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-28 Liyan Xie, Stine Slotsbo, Diana Ilyaskina, Valery Forbes, Martin Holmstrup
Current standard toxicity tests on nontarget soil invertebrates mainly focus on the endpoints survival and reproduction. Such results are likely insufficient to predict effects at higher organizational levels, for example, the population level. We assessed the effects of exposure to the pesticide teflubenzuron on the collembolan Folsomia candida, by performing a full life‐cycle experiment exposing
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Predicting Hydrocarbon Primary Biodegradation in Soil and Sediment Systems Using System Parameterization and Machine Learning Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-28 Craig W. Davis, David M. Brown, Chesney Swansborough, Christopher B. Hughes, Louise Camenzuli, Leslie J. Saunders, Delina Y. Lyon
Technical complexity associated with biodegradation testing, particularly for substances of unknown or variable composition, complex reaction products, or biological materials (UVCB), necessitates the advancement of non‐testing methods such as quantitative structure–property relationships (QSPRs). Models for describing the biodegradation of petroleum hydrocarbons (HCs) have been previously developed
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Spotlights are papers selected by editors published in peer‐reviewed journals that may be more regionally specific or appearing in languages other than English Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-28
NEW IN ASIAN JOURNAL OF ECOTOXICOLOGY Machine Learning Models for Screening Hepatotoxic Chemicals (Figure 1) Figure 1 Open in figure viewerPowerPoint Machine Deep learning algorithms, Artificial intelligence, AI, Automation and modern technology in business as concept. Image by WrightStudio. Creative Commons Attribution 4.0 International License. Exposure to exogenous chemicals is an important causation
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Exposure of Male Farmers and Nonfarmers to Neonicotinoid Pesticides in the South‐West and Littoral Regions of Cameroon: A Comparative Study Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-22 Faustin Pascal Tsagué Manfo, Collins Nimako, Edouard Akono Nantia, Christian Fusi Suh, Shu Policap Chenwi, Fidelis Cho‐Ngwa, Paul Fewou Moundipa, Shouta M. M. Nakayama, Mayumi Ishizuka, Yoshinori Ikenaka
Pesticides, especially the newly developed neonicotinoids, are increasingly used in many countries around the world, including Cameroon, to control pests involved in crop destruction or disease transmission. Unfortunately, the pesticides also pose tremendous environmental problems because a predominant amount of their residues enter environmental matrices to affect other nontargeted species including
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Exploring the Relationship Among Lipid Profile Changes, Growth, and Reproduction in Folsomia candida Exposed to Teflubenzuron Over Time Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-22 Diana Ilyaskina, Saúl Fernandes, Matty P. Berg, Marja H. Lamoree, Cornelis A. M. van Gestel, Pim E. G. Leonards
The integration of untargeted lipidomics approaches in ecotoxicology has emerged as a strategy to enhance the comprehensiveness of environmental risk assessment. Although current toxicity tests with soil microarthropods focus on species performance, that is, growth, reproduction, and survival, understanding the mechanisms of toxicity across all levels of biological organization, from molecule to community
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Reduced Freshwater Mussel Juvenile Production as a Result of Agricultural and Urban Contaminant Mixture Exposures Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-22 Molly A. Richard, Sarah Elliott, Stephanie L. Hummel, Daelyn A. Woolnough, Lacey D. Rzodkiewicz, Stephanie P. Gill, Justin Rappold, Mandy L. Annis
Freshwater mussels provide invaluable ecological services but are threatened by habitat alteration, poor water quality, invasive species, climate change, and contaminants, including contaminants of emerging concern (CECs). Contaminants of emerging concerns are well documented in aquatic environments, including the Great Lakes Basin, but limited information is available on how environmentally relevant
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The Role of Sediment Ingestion in Exposing Bottom‐Feeding Fish to Chemical Elements Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-22 W. Nelson Beyer, Alfred E. Pinkney
Digesta were collected from the intestines of seven species of bottom‐feeding fish to better understand the role of incidental ingestion of sediment in exposing fish to inorganic contaminants. A composite sediment tracer variable, based on concentrations of Co, Cr, Ni, Ti, V, and Y in digesta and in sediment, was calculated to estimate sediment content of digesta. Concentration factors (mg/kg in digesta
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The Effects of Wastewater Reuse on Smallmouth Bass (Micropterus dolomieu) Relative Abundance in the Shenandoah River Watershed, USA Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-22 Tyler Wagner, Paul McLaughlin, Kaycee E. Faunce, Samuel Austin, Kelly Smalling
Municipal and industrial wastewater effluent is an important source of water for lotic systems, especially during periods of low flow. The accumulated wastewater effluent flows—expressed as a percentage of total streamflow (ACCWW%)—contain chemical mixtures that pose a risk to aquatic life; fish may be particularly vulnerable when chronically exposed. Although there has been considerable focus on individual‐level
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Per‐ and Polyfluoroalkyl Substances in Water (2008–2022) and Fish (2015–2022) in The Netherlands: Spatiotemporal Trends, Fingerprints, Mass Discharges, Sources, and Bioaccumulation Factors Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-19 Michiel T. O. Jonker
Per‐ and polyfluoroalkyl substances (PFAS) are persistent, bioaccumulative, and toxic synthetic chemicals of concern, which have been detected in nearly all environmental compartments. The present study provides a data analysis on PFAS concentrations in the Dutch inland and coastal national waters and fish sampled from 2008 to 2022 and 2015 to 2022, respectively. Although the fish database is relatively
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Evaluation of Chronic Effects of Potassium Chloride and Nickel on Survival, Growth, and Reproduction of a Unionid Mussel (Lampsilis siliquoidea) Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-16 Ning Wang, James L. Kunz, Danielle Cleveland, Rebecca A. Dorman, Jeffery A. Steevens, Sandy Raimondo, Tom Augspurger, M. Chris Barnhart
The ASTM International standard test method for freshwater mussels (E2455‐13) recommends 4‐week toxicity testing with juveniles to evaluate chronic effects on survival and growth. However, concerns remain that the method may not adequately address the sensitivity of mussels to longer term exposures (>4 weeks), particularly in relation to potential reproductive impairments. No standard method directly
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Assessment of Mitochondrial Function in the AmE‐711 Honey Bee Cell Line: Boscalid and Pyraclostrobin Effects Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-16 Dalma Martinović‐Weigelt, Minh‐Anh Dang, Alex Mord, Michael J. Goblirsch
There is a growing concern that chronic exposure to fungicides contributes to negative effects on honey bee development, life span, and behavior. Field and caged‐bee studies have helped to characterize the adverse outcomes (AOs) of environmentally relevant exposures, but linking AOs to molecular/cellular mechanisms of toxicity would benefit from the use of readily controllable, simplified host platforms
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Validation of Salamander Dermal Mucus Swabs as a Novel, Nonlethal Approach for Amphibian Metabolomics and Glutathione Analysis Following Pesticide Exposure Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-14 Robin J. Van Meter, Donna A. Glinski, Jennifer J. Wanat, S. Thomas Purucker, W. Matthew Henderson
Evaluating biomarkers of stress in amphibians is critical to conservation, yet current techniques are often destructive and/or time‐consuming, which limits ease of use. In the present study, we validate the use of dermal swabs in spotted salamanders (Ambystoma maculatum) for biochemical profiling, as well as glutathione (GSH) stress response following pesticide exposure. Thirty‐three purchased spotted
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Sargassum spp. Ethanolic Extract Elicits Toxic Responses and Malformations in Zebrafish (Danio rerio) Embryos Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-13 Carlos E. González‐Penagos, Jesús Alejandro Zamora‐Briseño, Mónica Améndola‐Pimenta, Yanis Cruz‐Quintana, Ana M. Santana‐Piñeros, Jesús R. Torres‐García, Mayra A. Cañizares‐Martínez, Juan A. Pérez‐Vega, Ana C. Peñuela‐Mendoza, Rossanna Rodríguez‐Canul
The amount of Sargassum spp. arriving in the Caribbean Sea has increased steadily in the last few years, producing a profound environmental impact on the ecological dynamics of the coasts of the Yucatan Peninsula. We characterized the toxicological effects of an ethanolic extract of Sargassum spp. on zebrafish (Danio rerio) embryos (ZFEs) in a 96‐h static bioassay using T1 (0.01 mg/L), T2 (0.1 mg/L)
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Corrigendum Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-13
Brix, K. V., Tear, L., Santore, R. C., Croteau, K., & DeForest, D. K. (2021). Comparative performance of multiple linear regression and biotic ligand models for estimating the bioavailability of copper in freshwater. Environmental Toxicology and Chemistry, 40, 1649–1661. https://doi.org/10.1002/etc.5012 The authors of the above noted paper hereby submit the following correction. In this corrigendum
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Use of All‐Male cyp17a1‐Deficient Zebrafish (Danio rerio) for Evaluation of Environmental Estrogens Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-13 Jingyi Jia, Shengchi Shi, Congying Liu, Tingting Shu, Tianhui Li, Qiyong Lou, Xia Jin, Jiangyan He, Zhenyu Du, Gang Zhai, Zhan Yin
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Microparticles in Wild and Caged Biota, Sediments, and Water Relative to Large Municipal Wastewater Treatment Plant Discharges Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-07 Ellie M. Weir, Karen A. Kidd, Bonnie M. Hamilton, Jiabao Wu, Mark R. Servos, Adrienne J. Bartlett, Gerald R. Tetreault, Patricia L. Gillis
Anthropogenically modified microparticles including microplastics are present in municipal wastewater treatment plant (WWTP) effluents; however, it is unclear whether biotic exposures are elevated downstream of these outfalls. In the fall of 2019, the present study examined whether microparticle levels in resident fish, environmental samples, and caged organisms were elevated near the Waterloo and
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Transcriptomics‐Based Points of Departure for Daphnia magna Exposed to 18 Per‐ and Polyfluoroalkyl Substances Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-07 Daniel L. Villeneuve, Brett R. Blackwell, Kendra Bush, Joshua Harrill, Felix Harris, Monique Hazemi, Michelle Le, Emma Stacy, Kevin M. Flynn
Per‐ and polyfluoroalkyl substances (PFAS) represent a large group of contaminants of concern based on their widespread use, environmental persistence, and potential toxicity. Many traditional models for estimating toxicity, bioaccumulation, and other toxicological properties are not well suited for PFAS. Consequently, there is a need to generate hazard information for PFAS in an efficient and cost‐effective
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Pesticide Contamination Levels in the Stomach Contents of Wild Raccoons (Procyon lotor) and Masked Palm Civets (Paguma larvata) in Japan Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-03-05 So Shinya, Mariko Sashika, Miku Minamikawa, Tetsuji Itoh, Tsutomu Tanikawa, Kazuyuki D. Tanaka, Shouta M. M. Nakayama, Mayumi Ishizuka, Yoshinori Ikenaka
Pesticides, which are vital for agriculture, pose a significant threat to wildlife in transformed Japanese landscapes. Despite global reports of pesticide poisoning in animals, limited studies have examined current wildlife exposure in croplands or metropolitan areas in the region. Using liquid chromatography–tandem mass spectrometry (LC–MS/MS) and gas chromatography–tandem mass spectrometry (GC–MS/MS)
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Biotic Ligand Modeling for the Effect of Major Cations on the Uptake of Cadmium in Folsomia candida Exposed in a Sand‐Solution Medium Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-02-29 Masoud M. Ardestani, Cornelis A. M. van Gestel
Biotic ligand modeling (BLM) approaches are already applied to predict the bioavailability and possible risk of metals in surface water, but need further development for soils. The present study investigated the effect of major cations (Ca2+, Mg2+, Na+, K+, and H+) on cadmium bioaccumulation in the springtail Folsomia candida. To avoid the complexity of real soils and enable control of elemental speciation
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Identifying and Predicting Delayed Mortality with Toxicokinetic–Toxicodynamic Models Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-02-28 Tjalling Jager
The prevalence of standardized toxicity testing in ecotoxicology has largely obscured the notion that toxicity is a function of time as well. The necessity of considering time is vividly demonstrated by observations of delayed mortality, that is, deaths continue to occur even when animals are no longer exposed to a toxicant. In this contribution, I explore to what extent toxicokinetic–toxicodynamic
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Derivation of Transcriptomics‐Based Points of Departure for 20 Per‐ or Polyfluoroalkyl Substances Using a Larval Fathead Minnow (Pimephales promelas) Reduced Transcriptome Assay Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-02-28 Daniel L. Villeneuve, Kendra Bush, Monique Hazemi, John X. Hoang, Michelle Le, Brett R. Blackwell, Emma Stacy, Kevin M. Flynn
Traditional toxicity testing has been unable to keep pace with the introduction of new chemicals into commerce. Consequently, there are limited or no toxicity data for many chemicals to which fish and wildlife may be exposed. Per‐ and polyfluoroalkyl substances (PFAS) are emblematic of this issue in that ecological hazards of most PFAS remain uncharacterized. The present study employed a high‐throughput
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Anticoagulant Rodenticide Toxicity in Terrestrial Raptors: Tools to Estimate the Impact on Populations in North America and Globally Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-02-28 John E. Elliott, Veronica Silverthorn, Simon English, Pierre Mineau, Sofi Hindmarch, Philippe J. Thomas, Sandi Lee, Victoria Bowes, Tony Redford, France Maisonneuve, Joseph Okoniewski
Anticoagulant rodenticides (ARs) have caused widespread contamination and poisoning of predators and scavengers. The diagnosis of toxicity proceeds from evidence of hemorrhage, and subsequent detection of residues in liver. Many factors confound the assessment of AR poisoning, particularly exposure dose, timing and frequency of exposure, and individual and taxon‐specific variables. There is a need
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A Multicompartment Assessment of Microplastic Contamination in Semi‐remote Boreal Lakes Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-02-28 Hayley K. McIlwraith, Minoli Dias, Diane M. Orihel, Michael D. Rennie, Anna L. Harrison, Matthew J. Hoffman, Jennifer F. Provencher, Chelsea M. Rochman
Microplastic contamination is ubiquitous across the globe, even in remote locations. Still, the sources and pathways of microplastics to such locations are largely unknown. To investigate microplastic contamination in a semi‐remote location, we measured microplastic concentrations in nine oligotrophic lakes within and around the International Institute for Sustainable Development—Experimental Lakes
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In Silico Acute Aquatic Hazard Assessment and Prioritization Using a Grouped Target Site Model: A Case Study of Organic Substances Reported in Permian Basin Hydraulic Fracturing Operations Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-02-28 Kathleen S. Boone, Dominic M. Di Toro, Craig W. Davis, Thomas F. Parkerton, Aaron Redman
Hydraulic fracturing (HF) is commonly used to enhance onshore recovery of oil and gas during production. This process involves the use of a variety of chemicals to support the physical extraction of oil and gas, maintain appropriate conditions downhole (e.g., redox conditions, pH), and limit microbial growth. The diversity of chemicals used in HF presents a significant challenge for risk assessment
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Marine Microbiota Responses to Shipping Scrubber Effluent Assessed at Community Structure and Function Endpoints Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-02-28 Savvas Genitsaris, Natassa Stefanidou, Dimitris Hatzinikolaou, Polyxeni Kourkoutmani, Evangelia Michaloudi, Dimitra Voutsa, Meritxell Gros, Elisa García‐Gómez, Mira Petrović, Leonidas Ntziachristos, Maria Moustaka‐Gouni
The use of novel high‐throughput sequencing (HTS) technologies to examine the responses of natural multidomain microbial communities to scrubber effluent discharges to the marine environment is still limited. Thus, we applied metabarcoding sequencing targeting the planktonic unicellular eukaryotic and prokaryotic fraction (phytoplankton, bacterioplankton, and protozooplankton) in mesocosm experiments
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An Integrated Metabolomics-Based Model, and Identification of Potential Biomarkers, of Perfluorooctane Sulfonic Acid Toxicity in Zebrafish Embryos Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-02-27 Mark Annunziato, Narmin Bashirova, Muhamed N.H. Eeza, Ariel Lawson, Francisco Fernandez-Lima, Lilian V. Tose, Jörg Matysik, A. Alia, John P. Berry
Known for their high stability and surfactant properties, per- and polyfluoroalkyl substances (PFAS) have been widely used in a range of manufactured products. Despite being largely phased out due to concerns regarding their persistence, bioaccumulation, and toxicity, legacy PFAS such as perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid continue to persist at high levels in the environment
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Nondestructive Evaluation of Metal Bioaccumulation and Biochemical Biomarkers in Blood of Broad-Snouted Caiman (Caiman latirostris) from Northeastern Brasil Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-02-27 Rayssa Lima dos Santos, Célio Freire Mariz Jr., Paulo Braga Mascarenhas-Júnior, Rafael Sá Leitão Barboza, Ednilza Maranhão dos Santos, Jozélia Maria de Sousa Correia, Paulo Sérgio Martins de Carvalho
Studies on the bioaccumulation and toxicity of contaminants in Crocodylians are scarce. We evaluated alterations in concentrations of the nondestructive biomarkers butyrylcholinesterase (BChE), glutathione-S-transferase (GST), superoxide dismutase (SOD), and reduced glutathione (GSH), together with bioaccumulation of the metals iron (Fe), copper (Cu), zinc (Zn), manganese (Mn), chronium (Cr), aluminium
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Novel Reproduction Toxicity Test Method for Hyalella azteca Using Sexually Mature Amphipods Provides More Robust Data Than Standard Methods in Exposures to Imidacloprid Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-02-27 Hufsa N. Khan, Adrienne J. Bartlett, Amanda M. Hedges, Ryan S. Prosser
Hyalella azteca is an epibenthic crustacean used in ecotoxicology, but there are challenges associated with standard methods using reproduction as an endpoint. A novel, 28-day reproduction toxicity test method for H. azteca was created to address these issues by initiating tests with sexually mature amphipods to eliminate the confounding effects of growth, using a sex ratio of seven females to three
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Exposure to and Biomarker Responses From Legacy and Emerging Contaminants Along Three Drainages in the Milwaukee Estuary, Wisconsin, USA Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-02-20 Christine M. Custer, Thomas W. Custer, Paul M. Dummer, Sandra Schultz, Natalie Karouna-Renier, Chi Yen Tseng, Cole W. Matson
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A Systematic Review on Microplastic Contamination in Fishes of Asia: Polymeric Risk Assessment and Future Prospectives Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-02-14 Jahnvi Oza, Vasantkumar Rabari, Virendra Kumar Yadav, Dipak Kumar Sahoo, Ashish Patel, Jigneshkumar Trivedi
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Improving Sediment Toxicity Testing for Very Hydrophobic Chemicals: Part 1—Spiking, Equilibrating, and Exposure Quantification Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-02-12 Michiel T. O. Jonker, Noël J. Diepens
Sediment toxicity tests have applications in ecological risk and chemical safety assessments. Despite the many years of experience in testing and the availability of standard protocols, sediment toxicity testing remains challenging with very hydrophobic organic chemicals (VHOCs; i.e., chemicals with a log octanol/water partition coefficient of more than 6). The challenges primarily relate to the chemicals’
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Improving Sediment Toxicity Testing for Very Hydrophobic Chemicals: Part 2—Exposure Duration, Upper Limit Test Concentrations, and Distinguishing Actual Toxicity from Physical Effects Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-02-08 Michiel T. O. Jonker, Noël J. Diepens
Sediment toxicity testing with very hydrophobic organic chemicals (VHOCs) is challenging because of the chemicals’ low aqueous solubilities and slow kinetics. The present study presents the results of experiments investigating whether the standard exposure duration of 28 days with benthic invertebrates is sufficient for VHOCs; above which concentrations in sediment VHOCs are present as “free phase
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Pharmaceuticals and Personal Care Products in the Environment: What Progress Has Been Made in Addressing the Big Research Questions? Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-02-08 Alistair B. A. Boxall, Bryan W. Brooks
Pharmaceuticals and personal care products (PPCPs) include numerous chemical classes to prevent or treat human and animal disease or improve the quality of daily life of humans. During the life cycles of these products, it is inevitable that they will be released to the natural environment. It is, therefore, not surprising that a wide range of ingredients used in PPCPs has been detected widely in surface
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Environmental Toxicology and Chemistry Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-01-24
In recognition of the vital role of reviewers in the peer-review process, Environmental Toxicology and Chemistry (ET&C) thanks the following scientists and engineers, who reviewed manuscripts for the journal between November 1, 2022, and October 31, 2023. They have volunteered many hours to provide detailed comments, helpful suggestions, and insightful analysis; and we greatly appreciate their constructive
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Reflections on Multistakeholder Collaboration at SETAC Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2024-01-10 Tamar Schlekat
2024 marks the 45th anniversary of the Society of Environmental Toxicology and Chemistry (SETAC), which is a great occasion to ponder on the Society and its accomplishments. SETAC was established in 1979 due to the desire of scientists from the private, public, and government sectors to work collaboratively to identify solutions to environmental challenges. This came amidst a public outcry in the United
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Perfluorooctane Sulfonate (PFOS) Negatively Impacts Prey Capture Capabilities in Larval Zebrafish Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2023-12-28 Josiah D. Zoodsma, Chanita Boonkanon, Logan Running, Rehman Basharat, G. Ekin Atilla-Gokcumen, Diana S. Aga, Howard I. Sirotkin
Per- and polyfluoroalkyl substances (PFAS) are widely used in many industrial and domestic applications, which has resulted in unintentional human exposures and bioaccumulation in blood and other organs. Perfluorooctane sulfonate (PFOS) is among the most prevalent PFAS in the environment and has been postulated to affect brain functions in exposed organisms. However, the impacts of PFOS in early neural
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Effects of the Pesticide Carbofuran on Two Species of Chlorophyceae (Desmodesmus communis and Pseudopediastrum boryanum) and Their Pesticide Bioremediation Ability Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2023-12-28 Daniéli Saul da Luz, Pablo Santos Guimarães, Muryllo Santos Castro, Ednei Giberto Primel, Danilo Giroldo, Camila de Martinez Gaspar Martins
Carbofuran is one of the most toxic broad-spectrum pesticides. We evaluated the effects of carbofuran on two species of microalgae, Pseudopediastrum boryanum and Desmodesmus communis, through measurements of cell viability, biomass, chlorophyll content, and the production of reactive oxygen species (ROS). The ability of these algae to remove carbofuran dissolved in the media was also determined. For
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ET&C Exceptional Reviewers of 2023 Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2023-12-26
The annual list of ET&C Exceptional Reviewers highlights those who have consistently provided the journal with high-quality, timely reviews in the previous year. The reviewers below were selected from over 600 ET&C reviewers, based on both the quantity and quality of reviews they provided. Kees Booij PaSOC Kimswerd, The Netherlands Paul Drevnick Teck American Incorporated and NewRange Copper Nickel
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Assessing Contamination Profiles in Livers from Road-Killed Owls Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2023-12-26 Maria Dulsat-Masvidal, Rui Lourenço, Rafael Mateo, Silvia Lacorte
Raptors are recognized as valuable sentinel species for monitoring environmental contaminants owing to their foraging behavior across terrestrial and aquatic food webs and their high trophic position. The present study monitored environmental contaminants in livers from road-killed owls to evaluate differences in the exposure patterns due to factors such as species, age, and sex of individuals. Carcasses
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Effects of Age and Exposure Duration on the Sensitivity of Early Life Stage Fathead Minnow (Pimephales promelas) to Waterborne Propranolol Exposure Environ. Toxicol. Chem. (IF 4.1) Pub Date : 2023-12-26 Adam D. Biales, David C. Bencic, Robert W. Flick, Gregory P. Toth
Propranolol is a heavily prescribed, nonspecific beta-adrenoceptor (bAR) antagonist frequently found in wastewater effluents, prompting concern over its potential to adversely affect exposed organisms. In the present study, the transcriptional responses of 4, 5, and 6 days postfertilization (dpf) ±1 h fathead minnow, exposed for 6, 24, or 48 h to 0.66 or 3.3 mg/L (nominal) propranolol were characterized