WorldCat Identities

Posthuma, Leo

Overview
Works: 43 works in 75 publications in 3 languages and 446 library holdings
Roles: Author, Editor, Other
Classifications: QH541.15.R57, 577.27
Publication Timeline
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Most widely held works by Leo Posthuma
Species sensitivity distributions in ecotoxicology by Theo P Traas( Book )

20 editions published between 2001 and 2002 in English and Undetermined and held by 343 WorldCat member libraries worldwide

In spite of the growing importance of Species Sensitivity Distribution models (SSDs) in ecological risk assessments, the conceptual basis, strengths, and weaknesses of using them have not been comprehensively reviewed. This book fills that need. Written by a panel of international experts, Species Sensitivity Distributions in Ecotoxicology reviews the current SSD methods from all angles, compiling for the first time the variety of contemporary applications of SSD-based methods. Beginning with an introduction to SSDs, the chapter authors review the issues surrounding SSDs, synthesizing the positions of advocates and critics with their own analysis of each issue. Finally, they discuss the prospects for future development, paving the way for improved future uses. In sum, this book defines the field of SSD modeling and application. It reveals a lively field, with SSD-applications extending beyond legally adopted quality criteria to other applications such as Life-Cycle Analysis
Genetic ecology of metal tolerance in Collembola by Leo Posthuma( Book )

2 editions published in 1992 in English and held by 10 WorldCat member libraries worldwide

Beslissen over bagger op bodem by Leo Posthuma( Book )

3 editions published in 2006 in Dutch and English and held by 5 WorldCat member libraries worldwide

In een onderzoek van RIVM, RIZA en Alterra is gekeken naar de risico's die op een lokatie door verspreiding op land kunnen ontstaan. Hiervoor is een systeembenadering opgesteld: waar komen de stoffen vandaan, waar gaan ze heen, welke organismen worden daadwerkelijk blootgesteld, en wat zijn de lokale risico's na verspreiding nu eigenlijk? Hiernaar wordt in drie samenhangende rapporten gekeken. In dit derde rapport van de serie wordt de risicobenadering technisch-wetenschappelijk beschreven. Er wordt voortgebouwd op gegevens uit het tweede rapport, waarin is beschreven of- en hoe stoffen zich ophopen in de landbodem door het verspreiden van baggerspecie. In dit rapport wordt beschreven hoe dientengevolge de risico's van de stoffenmengsels voor mens, landbouwproducten en ecosystemen kunnen veranderen
Alternatieve systematiek voor de beoordeling van covergistingsmaterialen by L Poorter( Book )

2 editions published in 2013 in Dutch and held by 4 WorldCat member libraries worldwide

Tevens is gevraagd om mogelijkheden voor rubricering van afval- en reststoffen onder de rubricering van de Europese regelgeving voor afvalstoffen (EURAL-codes) in de Meststoffenwet te onderzoeken
Effect-based methods are key. The European Collaborative Project SOLUTIONS recommends integrating effect-based methods for diagnosis and monitoring of water quality by Werner Brack( )

2 editions published in 2019 in English and held by 4 WorldCat member libraries worldwide

Exposure and ecological effects of toxic mixtures at field-relevant concentrations : model validation and integration of the SSEO programme by Leo Posthuma( Book )

2 editions published in 2007 in English and held by 4 WorldCat member libraries worldwide

Local environmental conditions need be taken into account to assess the impacts of diffuse environmental pollution on ecosystems. Effects of diffuse pollution on the environment were studied at three contaminated areas in the Netherlands: the flood plains of a large lowland river (Waal), a tidal area (Biesbosch) and a peat soil area (near Vinkeveen). Diffuse pollution is present in these areas. Type and magnitudes of effects were determined and analysed
Beslissen over bagger op bodem by Leo Posthuma( Book )

2 editions published in 2006 in Dutch and held by 4 WorldCat member libraries worldwide

RIVM, RIZA en Alterra hebben in opdracht van het Kernteam Bagger & Bodem in 2004 en 2005 gewerkt aan de opzet van een praktijkgericht beslismodel. Toepassing van dit model moest leiden tot een milieuhygiënisch verantwoord en kosteneffectief beleid voor de verspreiding van baggerspecie uit regionale wateren op land. Vervolgens moeten risico's afgewogen worden: verspreiding van bagger op landbouwgrond èn het voorkómen van onacceptabele risico's voor mens, ecosysteem en landbouwproducten
Methoden voor de extrapolatie van toxiciteitsgegevens uit laboratorium-studies naar doel- of aandachts-soorten( Book )

1 edition published in 1995 in Dutch and held by 3 WorldCat member libraries worldwide

Validation of toxicity data and risk limits for soils: final report( Book )

3 editions published in 1998 in English and Swedish and held by 3 WorldCat member libraries worldwide

Laboratory toxicity tests are importanr for the derivation of soil criteria in the Netherlands. No Observed Effect Concentrations of species or processes are used to derive statistical sensitivity distributions. Hazardous Concentrations (HC5 and HC50) derived from these distributions define the ecotoxicological risk limits. The project 'Validation of Toxicity Data and Risk Limits for Soils' was set up to evaluate the ecological relevance of (1) laboratory toxicity data and (2) ecotoxicological risk limits, and to identify which factors introduce uncertainties. Toxic effects of zinc and other metals were studied on selected species (Trifolium pratense, Folsomia candida, Enchytraeus crypticus, Eisenia andrei) and on microbial degradation activities. Differences in bioavailability between soil types were found to be of prime importance in laboratory-to-field extrapolation of toxicity data. Studies with mixtures suggested that each contaminant should be taken into account in risk assessment. Variable exposure conditions appeared to modulate toxicity moderately. Toxic effects of zinc on community endpoints were determined at an experimental field plot and a heavy-metal contaminated field site using enchytraeids, nematodes and micro-organisms. No or weak responses were found at the HC5 level, while measurable effects were present at the HC50 level. This was confirmed by data from the literature. The scientific underpinning of HC values may be improved if toxicity-modulating factors such as bioavailability are taken into account in the interpretation of laboratory toxicity data and if long-term effects of contaminants are focused on. The effect of improved laboratory-to-field extrapolation on the estimated risk limits, however, depends on the relative importance of the correction factors in relation to the variation in species sensitivities. Hazardous Concentrations are valuable as first-tier risk evaluation system in soil protection policy. In a second-tier (location-specific) evaluation, the most important correction factors for laboratory-to-field extrapolation, named above, should be taken into account for the assessment of the local risk
Kijk op de Risicotoolbox Bodem : beoordelen van de actuele bodemkwaliteit en kiezen van lokale maximale waarden by Leo Posthuma( )

2 editions published in 2008 in Dutch and held by 3 WorldCat member libraries worldwide

Het RIVM heeft een toolbox ontwikkeld waarmee gemeenten zelf normen mogen onderbouwen voor de kwaliteit van bodem en bagger die bedoeld is voor hergebruik. Voortkomend uit het Besluit bodemkwaliteit mag het lokaal bevoegde gezag sinds 1 juli 2008 hierin afwijken van het nationale beleid. De toolbox, www.risicotoolboxbodem.nl, is sinds juli 2008 operationeel. Met dit bijbehorende rapport kunnen de invoerparameters worden bepaald en de resultaten van de Risicotoolbox Bodem (RTB) geïnterpreteerd. Het eerste deel is een handleiding met praktisch bruikbare informatie over het gebruik van de RTB aan de hand van de te doorlopen. Vervolgens bevat het rapport achtergrondinformatie en enkele praktijkvoorbeelden om een indruk te krijgen van de toepassing van de toolbox
An inventory on delayed effects of toxicants in biological systems by Leo Posthuma( Book )

2 editions published in 1995 in English and held by 3 WorldCat member libraries worldwide

Increase coherence, cooperation and cross-compliance of regulations on chemicals and water quality by John Munthe( )

1 edition published in 2019 in English and held by 2 WorldCat member libraries worldwide

Toxic effects of heavy metals in three worm species exposed in artificially contaminated soil substrates and contaminated field soils by Leo Posthuma( Book )

1 edition published in 1996 in English and held by 2 WorldCat member libraries worldwide

Statement on advancing the assessment of chemical mixtures and their risks for human health and the environment by Elina Drakvik( )

1 edition published in 2019 in English and held by 2 WorldCat member libraries worldwide

Assessing the ecological impact of chemical pollution on aquatic ecosystems requires the systematic exploration and evaluation of four lines of evidence by Thomas Backhaus( )

1 edition published in 2019 in English and held by 2 WorldCat member libraries worldwide

Let us empower the WFD to prevent risks of chemical pollution in European rivers and lakes by Werner Brack( )

1 edition published in 2019 in English and held by 2 WorldCat member libraries worldwide

Mixtures of chemicals are important drivers of impacts on ecological status in European surface waters by Leo Posthuma( )

1 edition published in 2019 in English and held by 2 WorldCat member libraries worldwide

Developments in society and implications for emerging pollutants in the aquatic environment by Dirk Bunke( )

1 edition published in 2019 in English and held by 2 WorldCat member libraries worldwide

Strengthen the European collaborative environmental research to meet European policy goals for achieving a sustainable, non-toxic environment by Werner Brack( )

1 edition published in 2019 in English and held by 2 WorldCat member libraries worldwide

 
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Species sensitivity distributions in ecotoxicology
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Languages
English (38)

Dutch (11)

Swedish (1)