Bioaccumulation and toxicity of CuO nanoparticles by a freshwater invertebrate after waterborne and dietborne exposures
October 1, 2014
The incidental ingestion of engineered nanoparticles (NPs) can be an important route of uptake for aquatic organisms. Yet, knowledge of dietary bioavailability and toxicity of NPs is scarce. Here we used isotopically modified copper oxide (65CuO) NPs to characterize the processes governing their bioaccumulation in a freshwater snail after waterborne and dietborne exposures. Lymnaea stagnalis efficiently accumulated 65Cu after aqueous and dietary exposures to 65CuO NPs. Cu assimilation efficiency and feeding rates averaged 83% and 0.61 g g–1 d–1 at low exposure concentrations (
Citation Information
| Publication Year | 2014 |
|---|---|
| Title | Bioaccumulation and toxicity of CuO nanoparticles by a freshwater invertebrate after waterborne and dietborne exposures |
| DOI | 10.1021/es5018703 |
| Authors | Marie Croteau, Superb K. Misra, Samuel Luoma, Eugenia Valsami-Jones |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Environmental Science & Technology |
| Index ID | 70127641 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | National Research Program - Western Branch; Toxic Substances Hydrology Program |