Toxicity of silver nanoparticles to Lumbriculus variegatus is a function of dissolved silver and promoted by low sediment pH
Rajala, J., Vehniäinen, E.-R., Väisänen, A., & Kukkonen, J. (2018). Toxicity of silver nanoparticles to Lumbriculus variegatus is a function of dissolved silver and promoted by low sediment pH. Environmental Toxicology and Chemistry, 37(7), 1889-1897. https://doi.org/10.1002/etc.4136
Published inEnvironmental Toxicology and Chemistry
DisciplineYmpäristötiedeEpäorgaaninen ja analyyttinen kemiaEnvironmental ScienceInorganic and Analytical Chemistry
© 2018 SETAC
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 concentration of dissolved Ag in the sediments, assessed with a 2‐step extraction procedure. The toxicity of 2 AgNPs was similar and greatly enhanced in the acidic sediment. Because the toxic effects were well related to the bioaccessible concentration of dissolved Ag in the sediments, the toxicity of sediment‐associated AgNPs to L. variegatus is suggested to be a function of dissolved Ag rather than a result from NP‐specific modes of toxicity. ...
Publication in research information system
MetadataShow full item record
Related funder(s)Academy of Finland
Funding program(s)Research post as Academy Research Fellow, AoF
Additional information about fundingJ.E. Rajala acknowledges the support of the University of Jyväskylä Graduate School for Doctoral Studies, and the South‐Eastern Finland University of Applied Sciences. E.‐R. Vehniäinen was funded by the Academy of Finland (285296).
Showing items with similar title or keywords.
Behaviour of sediment-associated silver nanoparticles and their toxicity to Lumbriculus variegatus Rajala, Juho (University of Jyväskylä, 2017)The increasing use of silver nanoparticles (AgNPs) in industry and consumer products results in the increasing environmental concentrations of AgNPs. In the aquatic environment, sediment is the major sink for the AgNPs. ...
Rajala, Juho; Vehniäinen, Eeva-Riikka; Väisänen, Ari; Kukkonen, Jussi (John Wiley & Sons, Inc.; Society of Environmental Toxicology and Chemistry, 2017)Sediments are believed to be a major sink for silver nanoparticles (AgNPs) in the aquatic environment, but there is a lack of knowledge about the environmental effects and behavior of AgNPs in sediments. The release of ...
Toxicity Testing of Silver Nanoparticles in Artificial and Natural Sediments Using the Benthic Organism Lumbriculus variegatus Rajala, Juho; Mäenpää, Kimmo; Vehniäinen, Eeva-Riikka; Väisänen, Ari; Scott-Fordsmand, Janeck James; Akkanen, Jarkko; Kukkonen, Jussi (Springer New York LLC, 2016)The increased use of silver nanoparticles (AgNP) in industrial and consumer products worldwide has resulted in their release to aquatic environments. Previous studies have mainly focused on the effects of AgNP on pelagic ...
Wallin, Jaana; Karjalainen, Juha; Väisänen, Ari; Karjalainen, Anna K. (Springer, 2021)Boreal lakes with soft water and low buffering capacity are susceptible to excess ion loading resulting from metal mining. The impact of two Finish mining sites in downstream lakes was assessed with a chronic sediment ...
Ecotoxicity assessment of boreal lake sediments affected by metal mining: Sediment quality triad approach complemented with metal bioavailability and body residue studies Väänänen, Kristiina; Abel, Sebastian; Oksanen, Tähti; Nybom, Inna; Leppänen, Matti T.; Asikainen, Harri; Rasilainen, Maj; Karjalainen, Anna; Akkanen, Jarkko (Elsevier BV, 2019)There are several methods for studying metal-contaminated freshwater sediments, but more information is needed on which methods to include in ecological risk assessment. In this study, we compliment the traditional Sediment ...