Search results for "benthic worms"

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Toxicity of silver nanoparticles to Lumbriculus variegatus is a function of dissolved silver and promoted by low sediment pH

2017

Toxicity of silver nanoparticles (AgNPs) to benthic organisms is a major concern. The use of AgNPs in industry and consumer products leads to increasing release of AgNPs into the aquatic environment-sediments being the major sink. Effects of sediment pH on the toxicity of AgNPs to benthic oligochaeta Lumbriculus variegatus were studied in a 23-d toxicity test. Artificially prepared sediments (pH 5 and 7) were spiked with varying concentrations of uncoated AgNP, polyvinylpyrrolidone (PVP)-coated AgNP, and silver nitrate (AgNO3 ) as dissolved Ag reference. Number of individuals and biomass change were used as endpoints for the toxicity. The toxic effects were related to the bioaccessible conc…

Geologic SedimentsLumbriculus variegatusHealth Toxicology and Mutagenesisbenthic wormsMetal Nanoparticlessedimentit02 engineering and technology010501 environmental sciences01 natural sciencesSilver nanoparticlechemistry.chemical_compoundmadotBiomassta116biologyHydrogen-Ion Concentration021001 nanoscience & nanotechnology6. Clean waterekotoksikologiaSilver nitrateEnvironmental chemistryToxicity0210 nano-technologymedicine.drugsilver nanoparticlesSilversekvensointita1172myrkyllisyysToxicity TestsmedicineAnimalsEnvironmental Chemistrysequential extractionOligochaetananoecotoxicology0105 earth and related environmental sciencesNo-Observed-Adverse-Effect LevelPolyvinylpyrrolidonehopeaSedimentbiology.organism_classificationsediment toxicitySolubilityuuttochemistry13. Climate actionnanohiukkasetnanoparticlesWater Pollutants ChemicalEnvironmental Toxicology and Chemistry
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Toxicity of silver nanoparticles to Lumbriculus variegatus is a function of dissolved silver and promoted by low sediment pH

2018

Toxicity of silver nanoparticles (AgNPs) to benthic organisms is a major concern. The use of AgNPs in industry and consumer products leads to increasing release of AgNPs into the aquatic environment—sediments being the major sink. Effects of sediment pH on the toxicity of AgNPs to benthic oligochaeta Lumbriculus variegatus were studied in a 23‐d toxicity test. Artificially prepared sediments (pH 5 and 7) were spiked with varying concentrations of uncoated AgNP, polyvinylpyrrolidone (PVP)‐coated AgNP, and silver nitrate (AgNO3) as dissolved Ag reference. Number of individuals and biomass change were used as endpoints for the toxicity. The toxic effects were related to the bioaccessible conce…

sediment toxicityekotoksikologiasilver nanoparticlessekvensointiuuttobenthic wormshopeamadotsequential extractionsedimentitnanohiukkasetmyrkyllisyysnanoecotoxicology
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