PMID- 11505898 OWN - NLM STAT- MEDLINE DCOM- 20010830 LR - 20191105 IS - 0944-1344 (Print) IS - 0944-1344 (Linking) VI - 8 IP - 3 DP - 2001 TI - The spatial scale of organic chemicals in multimedia fate modeling. Recent developments and significance for chemical assessment. PG - 150-5 AB - In the last years, the spatial range (SR) or characteristic travel distance (CTD) of organic chemicals has found increasing scientific interest as an indicator of the long-range transport (LRT) potential and, in combination with persistence, as a kind of 'hazard' indicator on the exposure level. This development coincides with European debates about more effective and more preventive approaches to the chemicals assessment, and about an international, legally-binding instrument for the phase out of persistent organic pollutants (POPs). Persistence and LRT potential are important issues in these debates. Here, the development of the concept of assessing the spatial scale from early ideas in the 1970s and 1980s to recent studies in the field of multimedia fate and transport modeling is summarized. Different approaches to the modeling of environmental transport (advective and dispersive) and different methods for quantifying the SR or CTD are compared. Relationships between SR or CTD and different persistence measures are analyzed. Comparison of these relationships shows that conclusions for chemical assessment should be based on an evaluation of different persistence and spatial scale measures. The use of SR or CTD and persistence as hazard indicators in the chemicals assessment is illustrated. FAU - Scheringer, M AU - Scheringer M AD - Safety and Environmental Technology Group, Laboratory of Chemical Engineering, Swiss Federal Institute of Technology, ETH Honggerberg, CH-8093 Zurich, Switzerland. scheringer@tech.chem.ethz.ch FAU - Hungerbuhler, K AU - Hungerbuhler K FAU - Matthies, M AU - Matthies M LA - eng PT - Journal Article PT - Review PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 RN - 0 (Environmental Pollutants) RN - 0 (Organic Chemicals) SB - IM MH - Air Movements MH - Environmental Exposure MH - Environmental Monitoring MH - Environmental Pollutants/*analysis MH - Humans MH - *Models, Theoretical MH - Organic Chemicals/*analysis MH - Public Health MH - Water Movements RF - 32 EDAT- 2001/08/17 10:00 MHDA- 2001/08/31 10:01 CRDT- 2001/08/17 10:00 PHST- 2001/08/17 10:00 [pubmed] PHST- 2001/08/31 10:01 [medline] PHST- 2001/08/17 10:00 [entrez] AID - 10.1007/BF02987378 [doi] PST - ppublish SO - Environ Sci Pollut Res Int. 2001;8(3):150-5. doi: 10.1007/BF02987378.