Biological accumulation of engineered nanomaterials: a review of current knowledge

摘要: Due to the widespread use of engineered nanomaterials (ENMs) in consumer and industrial products, concerns have been raised over their impacts once released into ecosystems. While there has a wealth studies on short-term acute toxic effects ENMs past decade, work chronic endpoints, such as biological accumulation, just begun increase last 2–3 years. Here, we comprehensively review 65 papers accumulation under range ecologically relevant exposure conditions water, soil or sediment with focus quantitative comparison among these existing studies. We found that daphnid, fish, earthworm are most commonly studied ecological receptors. Current evidence suggests ENM level is generally low fish earthworms logarithmic bioconcentration concentration factor biota-sediment ranging from 0.85–3.43 (L kg−1) −2.21–0.4 (kg kg−1), respectively. accumulated organisms at lower trophic can transfer higher animals occurrence biomagnification varying depending specific food chain studied. conclude by identifying challenges knowledge gaps propose paths forward.