title: Georeferenced regional simulation and aquatic exposure assessment.
abstract: A simulation model system of the waste water pathways and the aquatic fate assessment is coupled to a discrete digitized river network. Temporal concentration distributions of down-the-drain chemicals are calculated from variable and uncertain input data and compared to monitoring data. The accuracy of the predictions are within a factor of three for the studied pilot catchments. Spatial distributions of the whole catchment give stochastic information on a regional basis for probabilistic risk assessments.
authors.affiliation: Institute of Environmental Systems Research, University of Osnabrück, D-49069 Osnabrück, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Matthies
authors.forename: J
authors.initials: J
authors.lastname: Berlekamp
authors.forename: F
authors.initials: F
authors.lastname: Koormann
authors.forename: J O
authors.initials: JO
authors.lastname: Wagner
mesh_terms: D003198:Computer Simulation; D001330:Electronic Data Processing / Q000379:methods; D004784:Environmental Monitoring / Q000379:methods*; D005060:Europe; D005618:Fresh Water; D005843:Geography; D005858:Germany; D010865:Pilot Projects; D015203:Reproducibility of Results; D012984:Software; D013269:Stochastic Processes; D014867:Water / Q000592:standards*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014876:Water Pollution / Q000517:prevention & control*
chemical_list: D014874:Water Pollutants, Chemical; D014867:Water