Results 111 to 120 of about 45,121 (259)

Acute toxicity and histopathological effects of treated pharmaceutical effluent on Clarias gariepinus (African Catfish): LC50, physicochemical characterization, and tissue damage assessment

The Proceedings of the Nigerian Academy of Science
Pharmaceutical effluents represent a growing environmental concern, yet studies on the toxicological impacts of treated pharmaceutical wastewater on freshwater fish remain limited, particularly in sub-Saharan Africa.
Esther O. Ayanyemi, Titilayo O. Aladesanmi, Anthony O. Akande, Oyedayo P. Akano, Joan I. Akande, Chibuzor J. Amaechi   +5 more
doaj   +1 more source

Effect of Propylparaben on In Vitro Maturation of Porcine Oocytes and Embryo Development

Environmental Toxicology, EarlyView.
ABSTRACT Parabens are synthetic chemicals that, due to their antibacterial and fungicidal effects, are widely used as preservatives in food, cosmetics, and personal care products, such as shampoos, hair conditioners, body creams, soaps, deodorants, makeup, wet wipes, lotions, female hygiene products, and vaginal lubricants. Several years ago, they were
Elivier Núñez‐Macías, Fahiel Casillas, Yenny Ramírez‐Jara, Eduardo Casas, Alma López, Adyeni Barajas‐Salinas, Jaime Barraza, Brenda Casado, Ivan Bahena‐Ocampo, Lizbeth Juárez‐Rojas, Miguel Betancourt   +10 more
wiley   +1 more source

Exposure to Structurally Related Organophosphate Esters Elicits Distinct Metabolomic Perturbations in Daphnia magna

Environmental Toxicology, EarlyView.
ABSTRACT Organophosphate esters (OPEs) are found ubiquitously in the environment and exposure to these chemicals has induced behavioral, developmental, and morphological impairments in several model organisms. Yet there is still a lack of understanding of how sub‐lethal exposure disrupts organism function at the molecular‐level, especially for Daphnia ...
Salwa Hajir, Sanam Yousifie, Karl J. Jobst, André J. Simpson, Myrna J. Simpson   +4 more
wiley   +1 more source

Uji toksisitas akut (LC50-96 Jam) limbah cair Rumah Sakit X terhadap Ikan Zebra (Danio rerio)

, 2023
Pertumbuhan penduduk meningkatkan aktivitas dan kebutuhan masyarakat. Salah satu kegiatan manusia yang menghasilkan limbah berupa limbah B3 adalah penyelenggaraan pelayanan kesehatan yaitu rumah sakit.
Kinanti, Shinta Naurah
core  

Photocatalytic and Biotechnological Strategies for Remediation of Persistent Organic Pollutants: Mechanisms, Toxicity, and Antimicrobial Perspectives

Environmental Toxicology, EarlyView.
ABSTRACT Persistent organic pollutants (POPs) pose significant ecological and human health risks due to their persistence, bioaccumulation, toxicity, and global distribution. Conventional remediation methods are often inadequate for achieving complete mineralization, demonstrating the need for advanced and substantial approaches.
Viola O. Okechukwu, Patrick B. Njobeh, Jonathan O. Okonkwo   +2 more
wiley   +1 more source

LETHAL EFFECTS OF 2,2-DICHLOROVINYL DIMETHYL PHOSPHATE (DDVP) ON FINGERLING AND JUVENILE Clarias gariepinus (BURCHELL, 1822) [PDF]

Croatian Journal of Fisheries, 2013
This study investigated the lethal toxicity of 2,2-dichlorovinyl dimethyl phosphate (DDVP) on African mud catfish, Clarias gariepinus fingerlings (mean weight 7.02 ± 2.56 g) and juveniles (mean weight 13.54 ± 1.46 g) in a static renewable bioassay. DDVP,
Isaac Tunde Omoniyi, Kazeem Lanre Adeogun, Samuel Olubodun Obasa   +2 more
doaj  

Resource Availability Modulates Effects of Fluorine Free Firefighting Foams

Environmental Toxicology, EarlyView.
ABSTRACT Fluorine‐free foam (F3) alternatives that lack per‐ and polyfluoroalkyl substances (PFAS) are rapidly being adopted for firefighting operations and will be entering ecosystems. Despite this, little is known about their impact on freshwater communities.
Jack D. Morehouse, Lucas A. Cacula, Jason T. Hoverman   +2 more
wiley   +1 more source

Larvicidal activity of Hypoestes forskaolii (Vahl) R. Br root extracts against Anopheles gambiae Giless.s, Aedes aegypti L, and Culex quinquefasciatus Say

Journal of Experimental Pharmacology, 2019
Albert J Sillo, Winisia E Makirita, Hulda Swai, Musa ChachaSchool of Life Sciences and Bio-Engineering, Nelson Mandela African Institution of Science and Technology, Arusha, TanzaniaAim: This study aimed to evaluate larvicidal activity of Hypoestes ...
Sillo AJ, Makirita WE, Swai H, Chacha M
doaj  

Wildfire Ash Alters Freshwater Crustacean Behavior: Disentangling the Contributions of Suspended Macroparticles and Ash‐Induced Alkalinization

Environmental Toxicology, EarlyView.
ABSTRACT Climate change and anthropogenic ignitions are intensifying wildfire frequency worldwide, elevating the risk of freshwater contamination by ash. In water, dissolved ash releases ions and other toxic constituents that increase pH and alter physicochemical conditions, while suspended ash particles may impose mechanical stress, disrupt behavior ...
Pétterson B. Pereira‐Silva, Diogo R. Pacheco, Gustavo Kirsch, Ronnilda M. G. Araujo, Bianca V. C. Oscar, William G. Matias, Sandro Santos, Bruno R. S. Figueiredo   +7 more
wiley   +1 more source

Numerical comparisons of bioassay methods in estimating LC50 [PDF]

Master of ScienceDepartment of StatisticsWeixing SongThe potency of a pesticide or some materials is widely studied in agricultural and biological fields.
Zhou, Tianhong
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