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Vorschlag fuer eine Liste von prioritaeren Stoffen im Rahmen der zukuenftigen Wasserrahmenrichtlinie der EU

By M. Herrchen, P. Lepper, Schmallenberg (Germany)) M. (Fraunhofer-Institut fuer Umweltchemie und Oekotoxikologie Mueller and Berlin (Germany) Umweltbundesamt


Article 21 of the Council Directive establishing a framework for Community Action in the field of Water Policy requires the European Commission to establish a list of substances prioritised on the basis of their risk to the aquatic environment and to human health via the aquatic environment. In order to establish a list of priority substances, a combined monitoring-based and modelling-based priority setting scheme (COMMPS) has been elaborated. The COMMPS procedure is based on an approach to combine an automated relative risk-based ranking and a subsequent expert judgement (=>simplified risk assessment). Ranking lists are established by multiplying scores assigned for each substance's exposure-level and potential to cause adverse effects. The exposure-scoring is based either on surface water monitoring-data (monitoring-based exposure scoring) or on modelling data, using the Mackay I distribution model (modelling-based exposure scoring). Effect scores are established on the basis of test data (parameters: aquatic toxicity, bioaccumulation potential, toxicity to humans). The automated relative risk-based ranking results in two independent ranking lists for organic substances in the aquatic phase which are based on monitoring-based and modelling-based exposure data, respectively (the effect-scoring is identical for both lists). Other ranking lists are obtained exclusively on the basis of monitoring data (one list for organic substances in sediment and lists for metals either in the aquatic phase or in sediment). The selection of priority substances is made on the basis of the established ranking lists by a substance by substance judgement. For this purpose a two step procedure is applied. In the first step, the obtained lists are screened and subset of candidate priority substances is selected from each of the lists. In the second step, recommendations based on supplementary information regarding e.g. use pattern, fate and effects are given for the inclusion/exclusion of these candidate substances into/from the priority list. Finally, 27 organic substances and 5 metals are recommended for inclusion in the first priority list. (orig.)SIGLEAvailable from TIB Hannover: RN 8422(1999,64) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Umwelt, Naturschutz und Reaktorsicherheit, Bonn (Germany)DEGerman

Topics: 03H - Environmental law, environmental regulations, COMMPS, WATER FRAMEWORK DIRECTIVE, RANKING OF CHEMICALS, PRIORITY SUBSTANCES
Year: 1999
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Provided by: OpenGrey Repository
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