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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.

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one publication added to basket [128673]

Simulation of spatial and temporal variability of chronic copper toxicity to Daphnia magna and Pseudokirchneriella subcapitata in Swedish and British surface waters De Laender, F.; De Schamphelaere, K.A.C.; Verdonck, F.A.M.; Heijerick, D.G.; Van Sprang, P.A.; Vanrolleghem, P.A.; Janssen, C.R. (2005). Simulation of spatial and temporal variability of chronic copper toxicity to Daphnia magna and Pseudokirchneriella subcapitata in Swedish and British surface waters. Human and Ecological Risk Assessment 11(6): 1177-1191. https://dx.doi.org/10.1080/10807030500346664 In: Human and Ecological Risk Assessment. Taylor & Francis: Amherst, MA. ISSN 1080-7039; e-ISSN 1549-7860, meer

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Beschikbaar in	Auteurs
VLIZ: Non-open access 354140 [ aanvragen ]

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Trefwoorden

Bioavailability Variability Zoet water

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Auteurs		Top
De Laender, F., meer De Schamphelaere, K.A.C., meer Verdonck, F.A.M., meer Heijerick, D.G., meer	Van Sprang, P.A. Vanrolleghem, P.A., meer Janssen, C.R., meer

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Abstract

Water Quality Criteria (WQC) for metals are usually based on single species laboratory toxicity data. The influence of water characteristics of the surface waters on bioavailability to freshwater organisms is hence neglected, along with regional and temporal variability of these water characteristics. A methodology is presented to account for regional and temporal variability in the WQC setting for copper in the United Kingdom and Sweden. Bioavailability models were applied in a Monte-Carlo approach to account for temporal variability and a Geographic Information System was used to account for geographical variability on the chronic copper toxicity to Daphnia magna and Pseudokirchneriella subcapitata . Fifth percentiles of distributions of the No Observed Effect Concentration (NOEC) for both model species were derived in both study regions. For P. subcapitata , it was demonstrated that this fifth percentile can vary by a factor 10 in the UK study region. The ratio of these NOEC fifth percentiles ( D. magna percentile divided by P. subcapitata percentile) was used to compare the ecotoxicity of copper to two model species. This ratio showed the highest variability (a factor 5) within the Swedish study region. The findings of this research stress the need for the use of region-specific WQC for copper.

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