Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

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Estimation of degradation rates in cosm water : Guidance for inverse modelling using TOXSWA
Deneer, J.W. ; Adriaanse, P.I. ; Griethuysen, C. van; Boesten, J.J.T.I. - \ 2015
Wageningen : Alterra, Wageningen-UR (Alterra-rapport 2679) - 151 p.
pesticides - degradation - water - models - aquatic toxicology - toxicology - testing - pesticiden - degradatie - modellen - aquatische toxicologie - toxicologie - testen
Scenarios for exposure of aquatic organisms to plant protection products in the Netherlands : part 1: Field crops and downward spraying
Tiktak, A. ; Adriaanse, P.I. ; Boesten, J.J.T.I. ; Griethuysen, C. van; Horst, M.M.S. ter; Linders, J.B.H.J. ; Linden, A.M.A. van der; Zande, J.C. van de - \ 2012
Bilthoven : National Institute for Public Health and the Environment (RIVM report ) - 129
aquatische ecologie - waterorganismen - ecotoxicologie - pesticiden - waterverontreiniging - drift - modellen - aquatic ecology - aquatic organisms - ecotoxicology - pesticides - water pollution - models
In the current Dutch authorisation procedure for calculating the exposure of surface water organisms to plant protection products, drift deposition is considered to be the only source for exposure of surface water organisms. Although drift can still be considered the most important source, atmospheric deposition and drainage may constitute important sources as well. Therefore, RIVM, PBL, Wageningen UR and the Board for the authorisation of plant protection products and biocides have derived a new procedure in which these two potential sources are included. The new procedure, described in this report, is restricted to downward spray applications in field crops
Sampling method, storage and pretreatment of sediment affect AVS concentrations with consequences for bioassay responses
Lange, H.J. de; Griethuysen, C. van; Koelmans, A.A. - \ 2008
Environmental Pollution 151 (2008)1. - ISSN 0269-7491 - p. 243 - 251.
acid-volatile sulfide - fresh-water sediments - floodplain lake-sediments - rhine-meuse delta - macroinvertebrate community - asellus-aquaticus - benthic invertebrates - chironomus-riparius - trace-metals - toxicity
Sediment treatment and sediment storage may alter sediment toxicity, and consequently biotic response. Purpose of our study was to combine these three aspects (treatment-toxicity-biotic response) in one integrated approach. We used Acid Volatile Sulfide (AVS) concentrations as a proxy of the disturbance of the sediment. AVS and Simultaneously Extracted Metal (SEM) concentrations were compared to bioassay responses with the freshwater benthic macroinvertebrate Asellus aquaticus. Storage conditions and sediment treatment affected AVS but not SEM levels. AVS can be used as a proxy for sediment disturbance. The best way to pretreat the sediment for use in a bioassay in order to maintain initial AVS conditions was to sample the sediment with an Ekman grab, immediately store it in a jar without headspace, and freeze it as soon as possible. In a survey using seven different sediments, bioassay responses of A. aquaticus were correlated with SEM and AVS characteristics.
Impact of the "grey veil" of sediment-bound contaminants on macro-invertebrate communities in the Rhine-Meuse delta
Peeters, E.T.H.M. ; Griethuysen, C. van; Lange, M. de; Koelmans, A.A. - \ 2007
In: Exposure and ecological effects of toxic mixtures at field-relevant concentrations / Posthuma, L, Vijver, M.G., Bilthoven : RIVM (RIVM 860706002/2007) - p. 105 - 109.
Temporal dynamics of AVS and SEM in sediment of shallow freshwater floodplain lakes
Griethuysen, C. van; Lange, H.J. de; Heuij, M. van der; Bies, S.C. ; Gillissen, F. ; Koelmans, A.A. - \ 2006
Applied Geochemistry 21 (2006)4. - ISSN 0883-2927 - p. 632 - 642.
acid-volatile sulfide - simultaneously extracted metals - toxicity - invertebrates - resuspension - accumulation - netherlands - cadmium - marine - model
Acid volatile sulfide (AVS) is an operationally defined sulfide fraction, which is considered important for trace metal fate in reduced sediments. Understanding AVS formation rates is important for the management of metal polluted sediment. However, little lis known about the fate and dynamics of AVS in spatially and seasonally variable freshwater environments. The authors monitored in situ AVS formation and degradation and simultaneously extracted metals (SEM) in two floodplain lakes and compared this to AVS formation rates in laboratory experiments with the same sediment. In the laboratory experiments, the formation rates of AVS were studied at 20 degrees C for initially oxidized sediments that were: (a) untreated; (b) enriched with extra SO42-; and (c) treated with sodium-azide (biocide). In the field, AVS concentrations were highly variable and were significantly correlated to surface water temperature and O-2 concentrations as well as to sediment composition. Between February and August, AVS formation was approximately linear at a rate of 0.07 mu mol g(-1) d(-1). Degradation rates differed drastically between the lakes due to different degradation mechanisms. In one lake AVS removal was caused by reworking and oxygenation of the sediments by bream (Abrami brama), at a rate of 0.25 mu mol g(-1) d(-1). In the other lake AVS removal was caused by desiccation, at a rate of +/-2.6 mu mol g(-1) d(-1). This illustrates the large differences that can be found between similar lakes, and the importance of biological processes. In the laboratory, concentrations of AVS with and without SO42- addition were similar during the first weeks, and increased at a rate of 0.15 mu mol g(-1) d(-1). However, SO42- addition increased the AVS concentration at the end of the experiment, whereas sodium-azide eliminated AVS formation, as expected. This suggests that AVS formation was SO42--limited in the laboratory as well as in these shallow freshwater lakes.
Trace metals in floodplain lake sediments : SEM/AVS as indicator of bioavailability and ecological effects
Griethuysen, C. van - \ 2006
University. Promotor(en): Bart Koelmans. - [S.l. ] : S.n. - ISBN 9085043654 - 223
sporenelementen - metalen - stroomvlakten - meren - sediment - verontreinigende stoffen - waterverontreiniging - methodologie - ecologie - risicoschatting - waterkwaliteit - nederland - land van maas en waal - trace elements - metals - floodplains - lakes - pollutants - water pollution - methodology - ecology - risk assessment - water quality - netherlands
This thesis addresses the geochemical aspects of AVS (Acid Volatile Sulfide) and SEM (Simultaneously Extracted Metals) in floodplain lake sediment, its spatial distribution in floodplain lakes and dynamics over time, the link with effects on single species (bioassays), as well as the impact of excess SEM on the in situ benthic community, in one consistent methodological approach. Using this approach the SEM-AVS concept is thus evaluated on various levels from geochemical through ecotoxicology towards ecology. Furthermore, the aspect of spatial and temporal variability is addressed. For the case studies in the field, several floodplain lakes located in the floodplain area Afferdensche and Deestsche Waarden along the Waal branche of the Rhine were selected. Occasionally, this selection was extended towards other floodplain lakes along the Rhine branches. The main goal of this research is a) to explore the actual risks of trace metals to benthic communities in floodplain systems and b) to evaluate the SEM-AVS concept as a tool to assess bioavailable concentrations of trace metals in dynamic floodplain sediment
Temporal variation of trace metal geochemistry in floodplain lake sediment subject to dynamic hydrological conditions
Griethuysen, C. van; Luitwieler, M. ; Joziasse, J. ; Koelmans, A.A. - \ 2005
Environmental Pollution 137 (2005)2. - ISSN 0269-7491 - p. 281 - 294.
zware metalen - geochemie - meren - oppervlaktewater - waterverontreiniging - stroomvlakten - hydrologie - nederland - gelderland - land van maas en waal - heavy metals - geochemistry - lakes - surface water - water pollution - floodplains - hydrology - netherlands - acid-volatile sulfide - fresh-water sediments - elements - estuary - solids - avs
Climate change and land use may significantly influence metal cycling in dynamic river systems. We studied temporal variation of sediment characteristics in a floodplain lake, including concentrations of dissolved organic carbon, acid volatile sulfide and trace metals. The sampling period included a severe winter inundation and a dramatic water level drop during summer. Temporal changes were interpreted using multivariate analysis and chemical equilibrium calculations. Metal concentrations in sediment increased with depth, indicating a gradual improvement of sediment quality. In contrast, dissolved metal concentrations were highest in top layers due to mobilization from oxyhydroxides and precipitation with sulfides in deeper layers. Inundation had a mobilizing effect as it stimulated resuspension and oxygenation of sediment top layers. Water table lowering combined with organic matter decomposition led to immobilization due to sulfide formation. The chemistry of the sediments was consistent with model calculations, especially for macro-elements. The results illustrate the importance of seasonality for metal risk assessment.
Trace metal availability and effects on benthic community structure in floodplain lakes
Griethuysen, C. van; Baren, J. van; Peeters, E.T.H.M. ; Koelmans, A.A. - \ 2004
Environmental Toxicology and Chemistry 23 (2004)3. - ISSN 0730-7268 - p. 668 - 681.
meren - stroomvlakten - sporenelementen - waterorganismen - waterverontreiniging - rijn - waal - ijssel - aquatic organisms - water pollution - lakes - floodplains - trace elements - river rhine - river waal - river ijssel - acid-volatile sulfide - simultaneously extracted metals - macroinvertebrate community - contaminated sediments - cadmium accumulation - in-situ - invertebrates - toxicity - avs - bioavailability
Effects of contaminants on communities are difficult to assess and poorly understood. We analyzed in situ effects of trace metals and common environmental variables on benthic macroinvertebrate communities in floodplain lakes. Alternative measures of trace metal availability were evaluated, including total metals, metals normalized on organic carbon (OC) or clay, simultaneously extracted metals (SEM), combinations of SEM and acid-volatile sulfide (AVS), and metals accumulated by detritivore invertebrates (Oligochaeta). Accumulated metal concentrations correlated positively with sediment trace metals and negatively with surface water dissolved OC. Sixty-eight percent of the variation in benthic community composition was explained by a combination of 11 environmental variables, including sediment, water, and morphological characteristics with trace metals. Metals explained 2 to 6% of the community composition when SEM — AVS or individual SEM concentrations were regarded. In contrast, total, normalized, and accumulated metals were not significantly linked to community composition. We conclude that examination of SEM or SEM — AVS concentrations is useful for risk assessment of trace metals on the community level.
Spatial variability in environmental risk of trace metals in floodplain lake sediment
Griethuysen, C. van - \ 2003
In: Proceedings NCR-days 2002 - Current themes in Dutch river research. - - p. 160 - 161.
Spatial variation of metals and acid volatile sulfide in floodplain lake sediment
Griethuysen, C. van; Meijboom, E.W. ; Koelmans, A.A. - \ 2003
Environmental Toxicology and Chemistry 22 (2003). - ISSN 0730-7268 - p. 457 - 465.
sediment - zware metalen - zwavel - meren - stroomvlakten - ruimtelijke variatie - bodemchemie - nederland - waterbodems - gelderland - geostatistiek - heavy metals - sulfur - lakes - floodplains - spatial variation - soil chemistry - netherlands - water bottoms - geostatistics - simultaneously extracted metals - fresh-water sediments - trace-metals - contaminated sediments - diffusion method - avs - bioavailability - toxicity - cadmium
In risk assessment of aquatic sediments, much attention is paid to the immobilizing effect of acid volatile sulfide (AVS) on trace metals. The difference of AVS and simultaneously extracted metals (SEM) gives an indication of metal availability. In floodplain sediments, where changing redox conditions occur, AVS may play a major role in determining variation in metal availability. The importance of spatial heterogeneity has been recognized in risk assessment of trace-metal-polluted sediments. However, little is known about spatial variation of available metal fractions. We studied spatial variability of sediment, environmental conditions, total contaminant concentrations, and available metals (as SEM-AVS or SEM-AVS/f(OC)) in a floodplain lake. The top 5 cm of sediment was sampled at 43 locations. Data were analyzed with correlation and principal component analysis as well as with geostatistical methods. Trace metal and SEM concentrations and most sediment characteristics were more or less constant within 10%. In contrast, AVS concentrations were much more variable and showed a strong spatial dependence due to differences in lake depth, total sulfur pools, and redox potential (Eh), which resulted in crucial differences in trace-metal availability within the lake. The spatial pattern of SEM-AVS deviates from total or normalized trace-metal patterns. This particularly has implications for risk assessment of sediments prone to dynamic hydrological conditions, where AVS concentrations are also variable in time.
Measuring acid volatile sulphide in floodplain lake sediments: effect of reaction time, sample size and aeration
Griethuysen, C. van; Gillissen, F. ; Koelmans, A.A. - \ 2002
Chemosphere 47 (2002). - ISSN 0045-6535 - p. 395 - 400.
bodemchemie - chemische eigenschappen - sulfiden - analyse - laboratoriumdiagnose - sediment - meren - waterbodems - soil chemistry - lakes - chemical properties - sulfides - analysis - laboratory diagnosis - water bottoms
Ruimtelijke variatie van zware metalen en AVS in uiterwaardsediment. Implicaties voor ecologische risico-analyse
Griethuysen, C. ; Meijboom, E. ; Koelmans, A.A. - \ 2001
In: Jaarboek Sectie Milieuchemie / Kon. Ned. Chemische Vereniging - p. 37 - 39.
Aggregation studied by laser diffraction in relation to plowing and liming in the Cerrado region in Brazil
Westerhof, R. ; Buurman, P. ; Griethuysen, C. van; Ayarza, M. ; Vilela, L. ; Zech, W. - \ 1999
Geoderma 90 (1999). - ISSN 0016-7061 - p. 277 - 290.
In the Cerrado savanna region in Brazil, the effects of different land use on axisol aggregation were studied using laser diffraction grain size analyses. The topsoil of plowed systems had significantly lower amount of macroaggregates (2000-194 μm) and a significantly higher amount of soil in the microaggregate size and primary particle fraction (< 76 μm) compared to pastures and the native Cerrado. In plowed systems low in soil organic carbon (SOC), lime had a negative effect on aggregate stability. Lime addition had no effect on topsoil aggregation in land use systems that were not plowed regularly and generally had a higher SOC content. For all the studied topsoils, pH(KCl) was positively correlated with the amount of clay dispersed after 3 h of shaking in water. SOC did not influence clay dispersion in the range of soils studied. In continuous cropping systems in the Cerrado region, with a combination of mechanical stress and low SOC, liming will cause an increase in small aggregates and primary particles and hence contribute to a destabilization of the soil structure.
Monitoring bio-available trace metals in Dutch floodplains
Griethuysen, C. van; Koelmans, A.A. - \ 1999
In: SETAC-Europe 9th annual meeting : Quality of life and environment in cultured landscapes, Leipzig, 1999. - Leipzig : SETAC, 1999 - p. 158 03:A2 - 158 03:A2.
Aggregation, organic matter, and iron oxide morphology in oxisols from Minas Gerais, Brazil
Muggler, C.C. ; Griethuysen, C. van; Buurman, P. ; Pape, T. - \ 1999
Soil Science 164 (1999)10. - ISSN 0038-075X - p. 759 - 770.
oxisols - bodemmicromorfologie - bodemtextuur - brazilië - soil micromorphology - soil texture - brazil
The characteristic strong aggregation observed in Oxisols is usually attributed to the presence of free aluminium or iron compounds. Previous investigation of Oxisols from Minas Gerais, Brazil, suggested that iron oxide minerals do not necessarily play a role in aggregation. Oxisol profiles developed on different parent materials (rock-saprolites and sediments), and with different degrees of polygenesis, were investigated to assess whether the physical makeup, rather than the iron content, determines aggregation. Oxisols were investigated by means of micromorphology and laser diffraction grain-sizing. Grain-size distribution curves were determined after three pre-treatments: shaking with water; removal of organic matter; and removal of organic matter followed by deferration. Micromorphology indicated that soils developed on rock-saprolites have hematite droplets (discrete, red colored, equidimensional concentrations) in the saprolite, whereas droplets are not found in soils on Tertiary sediments. However, secondary iron accumulations related to periodic water saturation are encountered in the soils on sediments and not in the soils on rock-saprolites. Grain-size distribution curves showed that the Oxisols on rock-saprolites do not have strong aggregation because of iron oxides alone. Conversely, aggregation by iron oxides is evident in the Oxisols on sediments. This indicates that remobilization of iron during soil formation is essential for iron forms to play a role in aggregation. These findings suggest that the mode of formation and iron mineralogy affect aggregation.
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