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Application of multimedia models for screening assessment of long-range transport potential and overall persistence

Abstract : We propose a multimedia model-based methodology to evaluate whether a chemical substance qualifies as POP-like based on overall persistence (Pot,) and potential for long-range transport (LRTP). It relies upon screening chemicals against the Pov and LRTP characteristics of selected reference chemicals with well-established environmental fates. Results indicate that chemicals of high and low concern in terms of persistence and long-range transport can be consistently identified by eight contemporary multimedia models using the proposed methodology. Model results for three hypothetical chemicals illustrate that the model-based classification of chemicals according to P,), and LRTP is not always consistent with the single-media half-life approach proposed by the UNEP Stockholm Convention and that the models provide additional insight into the likely long-term hazards associated with chemicals in the environment. We suggest this model-based classification method be adopted as a complement to screening against defined half-life criteria at the initial stages of tiered assessments designed to identify POP-like chemicals and to prioritize further environmental fate studies for new and existing chemicals.
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Submitted on : Friday, March 21, 2014 - 2:07:03 PM
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Jörg Klasmeier, Michael Matthies, Matthew Macleod, Kathrin Fenner, Martin Scheringer, et al.. Application of multimedia models for screening assessment of long-range transport potential and overall persistence. Environmental Science and Technology, American Chemical Society, 2006, 40 (1), pp.53-60. ⟨10.1021/es0512024⟩. ⟨ineris-00962997⟩



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