Results 21 to 30 of about 3,700 (202)

Removal of estrogens from primary settled sewage by repeated culture of Selenastrum capricornutum

Water Science and Technology, 2023
Biotransformation and biodegradation of estrogenic compounds by bacteria and even fungi have been reported widely, but the role of microalgae in the elimination of estrogens from municipal wastewater treatment plants and their interaction with other ...
Ping Wang, Jianwen Luan, Lijuan Luo
doaj   +1 more source

Applicability of Chronic Multiple Linear Regression Models for Predicting Zinc Toxicity in Australian and New Zealand Freshwaters

Environmental Toxicology and Chemistry, Volume 42, Issue 12, Page 2614-2629, December 2023., 2023
Abstract Bioavailability models, for example, multiple linear regressions (MLRs) of water quality parameters, are increasingly being used to develop bioavailability‐based water quality criteria for metals. However, models developed for the Northern Hemisphere cannot be adopted for Australia and New Zealand without first validating them against local ...
Jennifer L. Stauber, Jennifer Gadd, Gwilym A. V. Price, Anthony Evans, Aleicia Holland, Anathea Albert, Graeme E. Batley, Monique T. Binet, Lisa A. Golding, Chris Hickey, Andrew Harford, Dianne Jolley, Darren Koppel, Kitty S. McKnight, Lucas G. Morais, Adam Ryan, Karen Thompson, Eric Van Genderen, Rick A. Van Dam, Michael St. J. Warne   +19 more
wiley   +1 more source

A Framework for Algae Modeling in Regulatory Risk Assessment

Environmental Toxicology and Chemistry, Volume 42, Issue 8, Page 1823-1838, August 2023., 2023
Abstract The use of toxicokinetic–toxicodynamic (TKTD) modeling in regulatory risk assessment of plant protection products is increasingly popular, especially since the 2018 European Food Safety Authority (EFSA) opinion on TKTD modeling announced that several established models are ready for use in risk assessment.
Cecilie Rendal, Johannes Witt, Thomas G. Preuss, Roman Ashauer   +3 more
wiley   +1 more source

Chronic Toxicity of Iron to Aquatic Organisms under Variable pH, Hardness, and Dissolved Organic Carbon Conditions

Environmental Toxicology and Chemistry, Volume 42, Issue 6, Page 1371-1385, June 2023., 2023
Abstract A series of chronic toxicity tests was conducted exposing three aquatic species to iron (Fe) in laboratory freshwaters. The test organisms included the green algae Raphidocelis subcapitata, the cladoceran Ceriodaphnia dubia, and the fathead minnow Pimephales promelas.
Allison S. Cardwell, Patricio H. Rodriguez, William A. Stubblefield, David K. DeForest, William J. Adams   +4 more
wiley   +1 more source

Are standard aquatic test species and methods adequate surrogates for use in environmental risk assessment of pesticides in tropical environments?

Integrated Environmental Assessment and Management, Volume 19, Issue 1, Page 202-212, January 2023., 2023
Abstract In regulatory risk assessment, surrogate species of fish, aquatic invertebrates, and primary producers are tested to assess toxicity and subsequently the risk of pesticides to freshwater biota. This study evaluates whether the standard, surrogate test species (mostly temperate in latitudinal distribution) used in many parts of the world are ...
Gustavo S. Santos, Mick Hamer, Alexandra Tscheschke, Eric Bruns, Lucilene Murakami, Gerhard P. Dohmen   +5 more
wiley   +1 more source

Safety of a feed additive consisting of semduramicin sodium (Aviax 5%) for chickens for fattening (Phibro Animal Health s.a.)

EFSA Journal, Volume 20, Issue 8, August 2022., 2022
Abstract Following a request from the European Commission, the Panel on Additives and Products or substances used in Animal Feed (FEEDAP Panel) was asked to deliver a scientific opinion on the safety of the coccidiostat Aviax 5% (semduramicin sodium) when used in feed for chickens for fattening.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Vasileios Bampidis, Giovanna Azimonti, Maria de Lourdes Bastos, Henrik Christensen, Birgit Dusemund, Mojca Fašmon Durjava, Maryline Kouba, Marta López‐Alonso, Secundino López Puente, Francesca Marcon, Baltasar Mayo, Alena Pechová, Mariana Petkova, Fernando Ramos, Yolanda Sanz, Roberto Edoardo Villa, Ruud Woutersen, Georges Bories, Pier Sandro Cocconcelli, Antonio Finizio, Jürgen Gropp, Guido Rychen, Ivana Teodorovic, Rosella Brozzi, Orsolya Holczknecht, Elisa Pettenati, Joana Revez, Maria Vittoria Vettori   +28 more
wiley   +1 more source

A wide‐field micro‐computed tomography detector: micron resolution at half‐centimetre scale

Journal of Synchrotron Radiation, Volume 29, Issue 2, Page 505-514, March 2022., 2022
A custom wide‐field lens and a new‐generation megapixel camera enabled micro‐CT scanning over a 3.5 mm × 5 mm field of view at 1 µm resolution/0.5 µm pixel size at Lawrence Berkeley Laboratory's Advanced Light Source and Argonne National Laboratory's Advanced Photon Source using a phantom with micron‐scale features. This novel combination of resolution
Maksim A. Yakovlev, Daniel J. Vanselow, Mee Siing Ngu, Carolyn R. Zaino, Spencer R. Katz, Yifu Ding, Dula Parkinson, Steve Yuxin Wang, Khai Chung Ang, Patrick La Riviere, Keith C. Cheng   +10 more
wiley   +1 more source

[Retracted] Nanomaterials for Food and Agriculture in Economic Valuation of the Technology Harvesting Maize Straw for Biogas Production in China

Journal of Nanomaterials, Volume 2022, Issue 1, 2022., 2022
Maize has a tremendous open door, immensely as a biofuel source. The objective reason for this examination is to break down the capacity of maize straw procured under fluctuating climatic circumstances to be used in biogas handling and the effect on different physicochemical components, for the most part, outstandingly the dry mass substance.
Zhenqi Fan, R Lakshmipathy
wiley   +1 more source

Toxic effects of chlorpyrifos, cypermethrin and glyphosate on the non-target organism Selenastrum capricornutum (Chlorophyta)

Anais da Academia Brasileira de Ciências, 2021
The toxic effects of the insecticides chlorpyrifos and cypermethrin, and the herbicide glyphosate on the growth, biovolume and ultrastructure of the green microalgae Selenastrum capricornutum were evaluated.
CAROLINA FERNÁNDEZ, VIVIANA ASSELBORN, ELISA R. PARODI   +2 more
doaj   +1 more source

Development of flow cytometry-based algal bioassays for assessing toxicity of copper in natural waters [PDF]

, 2001
Copper toxicity to the freshwater algae Selenastrum capricornutum and Chlorella sp. and the marine algae Phaeodactylum tricornutum and Dunaliella tertiolecta was investigated using different parameters measured by flow cytometry: cell division rate ...
Abalde, Arsenault, Baker, Bastien, Bentley-Mowat, Berglund, Blaise, Breeuwer, Cairns, Cid, Cid, Faber, Florence, Franklin, Gilbert, Gimmler, Guillard, Knauer, Müller, Neale, Peterson, Premazzi, Rachlin, Reiriz, Riisgard, Robinson, Samson, Shapiro, Stauber, Stauber, Stauber, Sunda, Thompson, Visviki, Wong, Yentsch, Yruela   +36 more
core   +1 more source