Geo-referenced prediction of environmental concentrations of chemicals in rivers: a hypothetical case study

Boeije, G.; Vanrolleghem, P. . Biomath

Geo-referenced prediction of environmental concentrations of chemicals in rivers: a hypothetical case study

1997

Boeije, G. | Vanrolleghem, P. (Universiteit Gent (Belgium). Biomath)

For use within environmental risk assessment, a new tool for chemical fate prediction, GREAT-ER (Geography-referenced Regional Exposure Assessment Tool for European Rivers), is being developed. In this paper, the practical applicability of the GREAT-ER simulation methodology is illustrated, by means of a hypothetical but realistic case study. Temporal distributions of predicted environmental concentrations (PEC) were calculated and analyzed. For the analysis of seasonally (i.e. the variability of river flows through the year), the Monte Carlo simulation technique was compared to a discrete 'flow scenario' approach. Finally, the scale-independent character of the approach was investigated, by upscaling from a detailed to a larger geographical scale.

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