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 509971
Title Risk Assessment of Soils containing Non-Extractable Residues (NER)
Author(s) Harmsen, J.; Hennecke, D.; Hund-Rinke, K.; Lahr, J.; Deneer, J.W.
Event SETAC Europe 26th Annual Meeting, Nantes, 2016-05-22/2016-05-26
Department(s) Alterra - Climate change and adaptive land and water management
Alterra - Animal ecology
Alterra - Environmental risk assessment
Publication type Poster (professional)
Publication year 2016
Abstract Introduction
The focus of this study is to evaluate the formation of non-extractable
residues (NER) in soil after application of 14C- test compounds and to
assess whether NER are toxic. Residual activity is found to remain in
the soil after a ‘total’ extraction, which can be present as:
• The chemical itself associated with mineral and/or organic matter
• Transformation product;
• Microbial biomass;
• Carbonates.
At the moment NER is considered either as a potential long-term
problem or as a sustainable detoxification.
The goal of this study is:
• Develop an “extraction test” to assess the ecotoxicity of fractions
representing different degrees of bioavailability of the chemical;
• Provide a clear, mechanistically driven, definition of NER and to
confirm a lack of residual toxicity caused by NER.
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