نتایج جستجو برای: aquatic toxicity
تعداد نتایج: 147258 فیلتر نتایج به سال:
Medicinal chemists and pharmacognosists have relied on terrestrial sources for bioactive phytochemicals to manage treat disease conditions. However, minimal interest is given sea life, especially macroalgae their inherent phytochemical reserves. Phlorotannins are a special class of mainly predominant in brown algae marine estuarine habitats. formed through the polymerization phloroglucinol resi...
In this study chemical analyses and ecotoxicity tests were applied for the assessment of a heavily hydrocarbon-contaminated soil prior and after the application of a remediation procedure that consisted in the stimulation of soil autochthonous populations of hydrocarbon degraders in static-ventilated biopiles. Terrestrial bioassays were applied in mixtures of test soils and artificial control s...
Cerium dioxide nanoparticles (CeO2 NPs) are increasingly being used as a catalyst in the automotive industry. Consequently, increasing amounts of CeO2 NPs are expected to enter the environment where their fate in and potential impacts are unknown. In this paper we describe the fate and effects of CeO2 NPs of three different sizes (14, 20, and 29 nm) in aquatic toxicity tests. In each standard t...
piscicidal and molluscicidal activities of aqueous extracts of many members of the family euphorbiaceae are well-known, but the toxicity potential of euphorbia turcomanica was not yet studied on any aquatic animals. an acute toxicity test was performed by using a four-day static renewal test to determine the lc 50 value of dried powder of e. turcomanica for the euryhaline fish, aphanius dispar ...
Reactive nitrogen compounds such as nitrite (NO2(-)) are highly toxic to aquatic animals and are partly responsible for the global decline of amphibians. On some fish and Caudata amphibian species low levels of sodium chloride significantly reduce the toxicity of nitrite. However, the nitrite-salinity interaction has not been properly studied in anuran amphibians. To verify if chloride (Cl(-)) ...
Gene expression profiles in fathead minnow exposed to 2,4-DNT: correlation with toxicity in mammals.
Toxicogenomics, the genome-wide analysis of gene expression to study the effect of toxicants, has great potential for use in environmental toxicology. Applied to standard test organisms, it has possible applications in aquatic toxicology as a sensitive monitoring tool to detect the presence of contaminants while providing information on the mechanisms of action of these pollutants. We describe ...
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