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Using Exposure Data to Identify Priority Substances Under the European Water Framework Directive: The Quest to Reflect Uncertainties
14 auth. G. Merrington, A. Peters, Iain Wilson, M. Gardner, S. Rutherford, S. Baken, C. Schlekat, Chris Cooper, Jelle Mertens, W. Adams, ...
The European Water Framework Directive (2000/60/EC) identifies "Priority Substances" (PS) as those posing a significant risk to or via the aquatic environment. Both reliable exposure data and a reliable Predicted No Effect Concentration (PNEC) are n…
The European Water Framework Directive (2000/60/EC) identifies "Priority Substances" (PS) as those posing a significant risk to or via the aquatic environment. Both reliable exposure data and a reliable Predicted No Effect Concentration (PNEC) are necessary for a robust risk assessment. Unfortunately, the exposure datasets used to evaluate candidate PS contain a large proportion of undetected or unquantified samples. This highlights the left-censored characteristics (i.e., having a high proportion of unquantified results) of many of these datasets. Without appropriate consideration of these non-detects, the risk assessment becomes meaningless, since it does not provide objective evidence that exposure occurs above the relevant PNEC over wide areas or at a significant number of sites. This article is protected by copyright. All rights reserved.
Published in
Environmental Toxicology and Chemistry
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1 | 2021 |
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