Results 91 to 100 of about 79,974 (295)

002 | Ecotoxicology in a changing planet: challenges and opportunities in the Anthropocene

open access: yesJournal of Biological Research
Ecotoxicology is changing rapidly as the planet enters the Anthropocene, a period marked by strong human influence on climate, ecosystems, and chemical pollution.
Società Italiana di Biologia Sperimentale
doaj  

Bioaccumulation of PCB & DDE methyl sulfones in marine mammals and their interactions with receptor proteins [PDF]

open access: yes, 2000
PCB and DDE-Methyl sulphone metabolites are the product of enzymatic and bile acid entero hepatic metabolism in the final phase (III) of PCB and DDE detoxification in mammals following hepatic microsomal cytochrome P450-dependent metabolism (phase I) and
Aguilar, A   +5 more
core  

A framework for a European network for a systematic environmental impact assessment of genetically modified organisms (GMO) [PDF]

open access: yes, 2012
The assessment of the impacts of growing genetically modified (GM) crops remains a major political and scientific challenge in Europe. Concerns have been raised by the evidence of adverse and unexpected environmental effects and differing opinions on the
Andersen, Erling   +37 more
core   +4 more sources

Antimicrobial Residues in a Key Cerrado River: Distribution, Persistence, and Effects on Zebrafish Embryo‐Larval Development

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT The current study aimed to quantify the antimicrobials amoxicillin (AMX), cefazolin (CFZ), chloramphenicol (CHL), metronidazole (MTZ), and sulfamethoxazole (SX) in effluents and surface water of an important Cerrado river, calculate their half‐lives, and analyze their ecotoxicity following single and combined exposures.
Náthala Maria Simão   +12 more
wiley   +1 more source

Chemical Aspects of Nanoparticle Ecotoxicology

open access: yesCHIMIA, 2014
Nanoecotoxicology strives to understand the processes and mechanisms by which engineered nanoparticles (ENP) may exert toxic effects on aquatic organisms.
Laura Sigg   +9 more
doaj   +1 more source

Influence of Age and Exposure Pathway on Copper and Cadmium Mixture Toxicity: A Study on Daphnia magna

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Metal contamination in aquatic ecosystems poses substantial risks to freshwater organisms, with mixture effects often deviating from predictions based on single‐metal toxicity. Understanding how age‐specific sensitivities and multiple exposure pathways influence mixture effects is critical for accurate risk assessment.
Sanah Majid   +3 more
wiley   +1 more source

Study on metal accumulation in aquatic plants of Cuciurgan cooling reservoir

open access: yesE3S Web of Conferences, 2014
The biomass of plants from the Cuciurgan cooling reservoir of the Moldovan Thermal Power Plant is dependent on the reservoir thermofication and bore considerable modifications.
Zubcov Elena   +3 more
doaj   +1 more source

Demography in ecotoxicology

open access: yes, 2000
Demography in Ecotoxicology focuses on the interface between toxicology, life history and demographic theory. This comprehensive book examines the different ways of adequately assessing the potential impact of toxic stress on populations and discusses how to obtain an insight into the underlying physiological and genetic mechanisms.
Kammenga, J., Laskowski, R.
openaire   +2 more sources

Using programmable infusion pump in avian species – a validation methodology in geese

open access: yesWildlife Biology, EarlyView.
Wildlife face anthropogenic and natural stressors that affect their physiology and behaviour. The activity of the hypothalamic–pituitary–adrenal axis and glucocorticoid (GC) production is intrinsically linked with energy regulation and environmental stressors.
Myriam Trottier‐Paquet   +5 more
wiley   +1 more source

Detection of chemically induced ecotoxicological effects in rivers of the Nidda catchment (Hessen, Germany) and development of an ecotoxicological, Water Framework Directive–compliant assessment system

open access: yesEnvironmental Sciences Europe, 2019
Background Approximately 90% of German surface waters do not meet the objectives of the European Water Framework Directive (EU-WFD). This is primarily due to deficits in water body structure and biological quality components, which in turn are negatively
Denise J. Brettschneider   +4 more
doaj   +1 more source

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