Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 488552
Title Guidance for the Prognostic Risk Assessment of Nanomaterials in Aquatic Ecosystems
Author(s) Koelmans, A.A.; Diepens, N.J.; Velzeboer, I.; Besseling, E.; Quik, J.T.K.
Source Science of the Total Environment 535 (2015). - ISSN 0048-9697 - p. 141 - 149.
Department(s) Wageningen Marine Research
Aquatic Ecology and Water Quality Management
Publication type Refereed Article in a scientific journal
Publication year 2015
Keyword(s) engineered nanomaterials - tio2 nanoparticles - environmental fate - carbon nanotubes - manufactured nanoparticles - hediste-diversicolor - silver nanoparticles - scrobicularia-plana - cuo nanoparticles - fresh-water
Abstract Our understanding of the environmental fate and effects of engineered nanomaterials (ENMs) is in a state of fast transition. Recent scientific developments open new and powerful perspectives to define a framework for the prognostic risk assessment of ENMs in aquatic ecosystems. This requires abandoning the reductionist's approach of mechanistic analysis on particle or cellular scales and calls for engineering solutions that deal with uncertainties by applying assessment factors and probabilistic approaches. An ecological risk assessment (ERA) framework for ENMs is similar to that for other classes of substances, in that it requires clear protection goals based on ecosystem services, evidence-based concepts that link exposure to effects, and a transparent tiered effect assessment. Here, we discuss approaches to assess exposure and effects of ENMs. This includes recent developments in ENP fate modeling that greatly expanded the potential of prognostic exposure assessments. For the effect assessment, we advise a cost-effective screening based on principles of read-across as a conservative first tier. The feasibility of using species sensitivity distributions as a higher tier option is discussed. Controlled model ecosystem field experiments are proposed as a highest experimental tier, and are required for the calibration of the lower tiers. An outlook to unify information from various tiers by experimental work, fate modeling, and effect modeling as cost-effective prognostic tools for the ERA of ENMs is provided.
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