CATS-1: A model for predicting contaminant accumulation in a meadow ecosystem. The case of cadmium

2.50
Hdl Handle:
http://hdl.handle.net/10029/256760
Title:
CATS-1: A model for predicting contaminant accumulation in a meadow ecosystem. The case of cadmium
Authors:
Traas TP; Aldenberg T
Other Titles:
CATS-1: Een model voor het voorspellen van accumulatie van verontreinigingen in weilanden: Het geval cadmium
Abstract:
A model has been developed for the ecological risk assessment of cadmium accumulation in meadow ecosystems. Foodweb structure is based on functional groups, which implies that variability within the group exists with respect to both physiological and toxicokinetic parameters. A probabilistic treatment of model outputs, e.g. concentrations is used, to account for inherent biological variability and model uncertainty, and to assess ecotoxicological risks. The Maximum Permissible Concentration (MPC) in soil, with regard to protecting 95% of the species, is exceeded at all cadmium load reduction scenarios in 2015 and 2050. Because of the high accumulation of earthworms, environmental standards for cadmium in food of moles and meadowbirds are exceeded at all loading scenarios. The probability that more than 5% of herbivorous species are unprotected against sublethal effects of cadmium, is predicted to be 45% in 2015 and 85% in 2050 at the present cadmium load. This example shows that with CATS models, a broad range of environmental quality standards can be compared in an integrated modelling effort.<br>
Publisher:
Rijksinstituut voor Volksgezondheid en Milieu RIVM
Issue Date:
31-Dec-1992
Additional Links:
http://www.rivm.nl/bibliotheek/rapporten/719103001.html; http://www.rivm.nl/bibliotheek/rapporten/719103001.pdf
Type:
Onderzoeksrapport
Language:
en
Sponsors:
DGM/SVS
Appears in Collections:
RIVM official reports

Full metadata record

DC FieldValue Language
dc.contributor.authorTraas TP-
dc.contributor.authorAldenberg T-
dc.date.accessioned2013-09-17T23:00:42-
dc.date.issued1992-12-31-
dc.identifier719103001-
dc.description.abstractA model has been developed for the ecological risk assessment of cadmium accumulation in meadow ecosystems. Foodweb structure is based on functional groups, which implies that variability within the group exists with respect to both physiological and toxicokinetic parameters. A probabilistic treatment of model outputs, e.g. concentrations is used, to account for inherent biological variability and model uncertainty, and to assess ecotoxicological risks. The Maximum Permissible Concentration (MPC) in soil, with regard to protecting 95% of the species, is exceeded at all cadmium load reduction scenarios in 2015 and 2050. Because of the high accumulation of earthworms, environmental standards for cadmium in food of moles and meadowbirds are exceeded at all loading scenarios. The probability that more than 5% of herbivorous species are unprotected against sublethal effects of cadmium, is predicted to be 45% in 2015 and 85% in 2050 at the present cadmium load. This example shows that with CATS models, a broad range of environmental quality standards can be compared in an integrated modelling effort.<br>en
dc.description.sponsorshipDGM/SVS-
dc.formatapplication/pdf-
dc.format.extent132 p-
dc.format.extent5646 kb-
dc.language.isoen-
dc.publisherRijksinstituut voor Volksgezondheid en Milieu RIVM-
dc.relation.ispartofRIVM Rapport 719103001-
dc.relation.urlhttp://www.rivm.nl/bibliotheek/rapporten/719103001.html-
dc.relation.urlhttp://www.rivm.nl/bibliotheek/rapporten/719103001.pdf-
dc.subject12nl
dc.subjectgraslandnl
dc.subjectweidenl
dc.subjectmodelnl
dc.subjectcadmiumnl
dc.subjectmacnl
dc.subjectsimulatienl
dc.subjectbio-accumulatienl
dc.subjectvoedselketennl
dc.subjectecosysteemnl
dc.subjectrisiconl
dc.subjectecotoxicologienl
dc.subjectscenarionl
dc.subjectregenwormennl
dc.subjectweidevogelsnl
dc.subjectpredatienl
dc.subject92-4nl
dc.subjectmeadowsen
dc.subjectmodellingen
dc.subjectcadmiumen
dc.subjectmacen
dc.subjectsimulationen
dc.subjectbioaccumulationen
dc.subjectfood chainsen
dc.subjectecosystemsen
dc.subjectrisksen
dc.subjectecotoxicologyen
dc.subjectscenarioen
dc.subjectearthwormsen
dc.subjectpredationen
dc.subjectmeadow birdsen
dc.subjectgrasslandsen
dc.titleCATS-1: A model for predicting contaminant accumulation in a meadow ecosystem. The case of cadmiumen
dc.title.alternativeCATS-1: Een model voor het voorspellen van accumulatie van verontreinigingen in weilanden: Het geval cadmiumnl
dc.typeOnderzoeksrapport-
dc.date.updated2013-09-17T21:00:47Z-
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