Guidance Document on the Use of Multimedia Models for Estimating Overall Environmental Persistance and Long-Range Transport

Overall persistence (P ov ) and long-range transport potential (LRTP) of organic chemicals are environmental hazard metrics calculated with multimedia fate and transport models. Since there are several models of this type, it is important to know whether and how different model designs (model geometry, selection of compartments and processes, process descriptions) affect the results for P ov and LRTP. Using a set of 3175 hypothetical chemicals covering a broad range of partition coefficients and degradation halflives, we systematically analyze the P ov and LRTP results obtained with nine multimedia models. We have developed several methods that make it possible to visualize the model results efficiently and to relate differences in model results to mechanistic differences between models. Rankings of the hypothetical chemicals according to P ov and LRTP are highly correlated among models and are largely determined by the chemical properties. Domains of chemical properties in which model differences lead to different results are identified, and guidance on model selection is provided for model users.

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Comparing Estimates of Persistence and Long-Range Transport Potential among Multimedia Models

Fenner

Scheringer

MacLeod

et al. 2005

Environ. Sci. Technol.

147

124

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Redefining environmental nanomaterial flows: consequences of the regulatory nanomaterial definition on the results of environmental exposure models

Wigger

Wohlleben

Nowack

2018

Environ. Sci.: Nano

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Guidance Document on the Use of Multimedia Models for Estimating Overall Environmental Persistance and Long-Range Transport

Cited by 2 publications

References 37 publications

Comparing Estimates of Persistence and Long-Range Transport Potential among Multimedia Models

Comparing Estimates of Persistence and Long-Range Transport Potential among Multimedia Models

Redefining environmental nanomaterial flows: consequences of the regulatory nanomaterial definition on the results of environmental exposure models

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