Výsledky vyhledávání - "Dagobert G. Heijerick"

The toxicity of molybdate to freshwater and marine organisms. II. Effects assessment of molybdate in the aquatic environment under REACH

Autor: S. Carey, L. Regoli, Dagobert G. Heijerick

Publikováno v: Science of The Total Environment. :179-187

The REACH Molybdenum Consortium initiated an extensive research program in order to generate robust PNECs, based on the SSD approach, for both the freshwater and marine environments. This activity was part of the REACH dossier preparation and to form

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a308a25e37f1ca49edc156c9f67b1130
https://doi.org/10.1016/j.scitotenv.2012.05.075

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Cross-phylum comparison of a chronic biotic ligand model to predict chronic toxicity of copper to a freshwater rotifer, Brachionus calyciflorus (Pallas)

Autor: Dagobert G. Heijerick, Karel A.C. De Schamphelaere, Colin R. Janssen

Publikováno v: Ecotoxicology and Environmental Safety. 63:189-195

Short chronic 48-h toxicity tests with the freshwater rotifer Brachionus calyciflorus (Pallas) were conducted to assess the modifying effects of pH and natural dissolved organic carbon (DOC) concentration on reproductive toxicity of Cu. Toxicity test

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab824949d53327bf120a7f913e5c7f98
https://doi.org/10.1016/j.ecoenv.2005.07.012

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Simulation of Spatial and Temporal Variability of Chronic Copper Toxicity toDaphnia magnaandPseudokirchneriella subcapitatain Swedish and British Surface Waters

Autor: Frederik Verdonck, Colin R. Janssen, F. De Laender, Dagobert G. Heijerick, P Van Sprang, Peter A. Vanrolleghem, K.A.C. De Schamphelaere

Publikováno v: Human and Ecological Risk Assessment: An International Journal. 11:1177-1191

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

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::333414eb6f1bac6cd6eb1cac982eddef
https://doi.org/10.1080/10807030500346664

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Development of a chronic zinc biotic ligand model for Daphnia magna

Autor: Dagobert G. Heijerick, Karel A.C. De Schamphelaere, Colin R. Janssen, Patrick Van Sprang

Publikováno v: Ecotoxicology and Environmental Safety. 62:1-10

The individual effects of the cations Ca(2+), Mg(2+), Na(+), and H(+) on the chronic toxicity of Zn to the waterflea Daphnia magna were investigated in different series of univariate experiments, resulting in the development of a chronic Zn biotic li

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a976f98fb30963ac6adf6c2f9a878757
https://doi.org/10.1016/j.ecoenv.2005.03.020

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Effect of Varying Physicochemistry of European Surface Waters on the Copper Toxicity to the Green Alga Pseudokirchneriella subcapitata

Autor: Bart T.A. Bossuyt, M.B.M. Indeherberg, K.A.C. De Schamphelaere, Dagobert G. Heijerick, Colin R. Janssen, M. Mingazzini

Publikováno v: Ecotoxicology (Lond.) 14 (2005): 661–670. doi:10.1007/s10646-005-0014-8
info:cnr-pdr/source/autori:HEIJERICK D.G., BOSSUYT B.T.A., DE SCHAMPHELAERE K.A.C., INDEHERBERG M., MINGAZZINI M., JANSSEN C./titolo:EFFECT OF VARYING PHYSICOCHEMISTRY OF EUROPEAN SURFACE WATERS ON THE COPPER TOXICITY TO THE GREEN ALGA PSEUDOKIRCHNERIELLA SUBCAPITATA/doi:10.1007%2Fs10646-005-0014-8/rivista:Ecotoxicology (Lond.)/anno:2005/pagina_da:661/pagina_a:670/intervallo_pagine:661–670/volume:14

Most standard toxicity test results, used in present environmental risk assessment and water quality criteria (WQC) setting procedures are obtained with standard test media that are not representative for natural surface waters when metal toxicity mo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eefef83d49d5004bdb749b0bffa8cb72
https://doi.org/10.1007/s10646-005-0014-8

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Comparison of the Effect of Different pH Buffering Techniques on the Toxicity of Copper and Zinc to Daphnia Magna and Pseudokirchneriella Subcapitata

Autor: Colin R. Janssen, Dagobert G. Heijerick, K.A.C. De Schamphelaere

Publikováno v: ResearcherID

During the time-course of ecotoxicity tests with algae and chronic (reproductive) toxicity tests with daphnids, in which algae are present as a food source, pH can dramatically increase due to photosynthetic activity. As pH changes can significantly

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b9f33c4c02bca7698bd0980d505b2b9
https://doi.org/10.1007/s10646-003-4429-9

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The toxicity of metal mixtures to the estuarine mysid Neomysis integer (Crustacea: Mysidacea) under changing salinity

Autor: Karel A.C. De Schamphelaere, Colin R. Janssen, M Vangheluwe, Dagobert G. Heijerick, Tim Verslycke, Patrick Van Sprang

Publikováno v: Aquatic Toxicology. 64:307-315

Water quality criteria are mainly based on data obtained in toxicity tests with single toxicants. Several authors have demonstrated that this approach may be inadequate as the joint action of the chemicals is not taken into account. In this study, th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0ff2cb5ef585686c92b5e3ad41bdb09
https://doi.org/10.1016/s0166-445x(03)00061-4

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Environmental risk assessment of metals: tools for incorporating bioavailability

Autor: K.A.C. De Schamphelaere, Colin R. Janssen, Dagobert G. Heijerick, Herbert E. Allen

Publikováno v: Environment International, Vol 28, Iss 8, Pp 793-800 (2003)

In this paper, some of the main processes and parameters which affect metal bioavailability and toxicity in the aquatic environment and its implications for metal risk assessment procedures will be discussed. It has become clear that, besides chemica

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fbd1ad605c650a1755ac6bc893101be1
https://doi.org/10.1016/s0160-4120(02)00126-5

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The Combined Effects of Hardness, pH, and Dissolved Organic Carbon on the Chronic Toxicity of Zn to D. magna : Development of a Surface Response Model

Autor: Dagobert G. Heijerick, W. De Coen, Colin R. Janssen

Publikováno v: Archives of environmental contamination and toxicology

The effect of changes in pH, hardness, and dissolved organic carbon (DOC) and the possible interactions among these parameters on the chronic toxicity of zinc to D. magna were investigated. Based on a Central Composite Design, models were developed t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::249f161ac12d8270cf4170c7f425847f
https://doi.org/10.1007/s00244-002-2010-9

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