%0 Journal Article
%A Matthew Macleod
%A Thomas E McKone
%A Kathrin Fenner
%A Martin Scheringer
%A Michael Matthies
%A Maximilian Stroebe
%A Andreas Beyer
%A Mark Bonnell
%A Anne Christine Le Gall
%A Jörg Klasmeier
%A Donald Mackay
%A Dik van de Meent
%A David Pennington
%A Bernd Scharenberg
%A Noriyuki Suzuki
%A Frank Wania
%B Environmental Science & Technology
%D 2005
%G eng
%P 1932 -1942
%R 10.1021/es048917b
%T Comparing estimates of persistence and long-range transport potential among multimedia models
%V 39
%1 <p>7.2</p>
%X <p>Overall persistence (<em>P</em><sub>ov</sub>) 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 <em>P</em><sub>ov</sub> and LRTP. Using a set of 3175 hypothetical chemicals covering a broad  range of partition coefficients and degradation half−lives, we  systematically analyze the <em>P</em><sub>ov</sub> 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 <em>P</em><sub>ov</sub> 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.</p>