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.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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    We will mail you new results for this query: keywords==milieuchemie
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Bodemkwaliteitsmeetnetten: vlees noch vis?
Brus, D.J. - \ 2009
Milieu : opinieblad van de Vereniging van Milieuprofessionals 15 (2009)3. - ISSN 1873-5436 - p. 20 - 23.
milieubeheer - bodem - bodemkwaliteit - meetsystemen - milieu-analyse - milieuchemie - bodem-landschap relaties - environmental management - soil - soil quality - measurement systems - environmental analysis - environmental chemistry - soil-landscape relationships
In een evaluatie van de landelijke en provinciale bodemkwaliteit- en grondwatermeetnetten is geconcludeerd dat het fundament goed is. De steekproeftechnische aspecten van de meetnetten - van waaruit vraagtekens bij deze conclusie kunnen worden geplaatst - zijn in de evaluatie buiten beschouwing gebleven. Dat is is volgens de auteur jammer want de huidige meetnetten zijn niet erg geschikt voor het doen van statistische uitspraken over de kwaliteit van de Nederlandse bodem. Kanssteekproeven zijn hiervoor veel geschikter, zoals onder meer is gebleken uit het monitoringsprogramma in de Verenigde Staten
Chemical measures of bioavailability
Alexander, M. ; Cunningham, S.D. ; Chaney, R.R. ; Hughes, J.B. ; Harmsen, J. - \ 2003
In: Contaminated soils: from soil-chemical interactions to ecosystem management.. - - p. 345 - 362.
biologische beschikbaarheid - bodemverontreiniging - milieuchemie - milieuhygiëne
Natural treatment of polluted sediments
Harmsen, J. - \ 2002
In: Inaugural conference; SedNet European research sediment network. Venice (Italy), Venice Int. Univ., 2002 - p. 60 - 62.
landfarming - bodemreiniging - bodemverontreiniging - milieuchemie
Bioremediation of polluted sediment: a matter of time or effort
Harmsen, J. - \ 2002
In: Inaugural conference; SedNet European research sediment network. Venice (Italy), Venice Int. Univ., 2002 - p. 41 - 45.
landfarming - bodemreiniging - bodemverontreiniging - milieuchemie
Measured bioavailability as a tool for managing clean-up and risks on landfarms
Harmsen, J. - \ 2002
In: Inaugural conference; SedNet European research sediment network. Venice (Italy), Venice Int. Univ., 2002 - p. 74 - 78.
landfarming - bodemreiniging - bodemverontreiniging - milieuchemie
Nitrous oxide formation in the Colne estuary in England: the central role of nitrite
Dolfing, J. - \ 2002
Applied and Environmental Microbiology 68 (2002)3. - ISSN 0099-2240
broeikasgas - lachgas - milieuchemie - nutriënten - stikstof - Engeland
Oil effect in freshly spiked marine sediment on Vibrio fischeri, Corophium volutator and Echinocardium cordatum
Brils, J.M. ; Huwer, S.L. ; Kater, B.J. ; Schout, P.G. ; Harmsen, J. ; Delvigne, G.A.L. ; Scholten, M.C.T. - \ 2002
Environmental Toxicology and Chemistry 21 (2002)10. - ISSN 0730-7268 - p. 2242 - 2251.
ecotoxicologie - milieuchemie - milieuverontreiniging - waterbodem
The purpose of this study was to provide data to be used in The Netherlands for development of ecotoxicologically based quality criteria for oil-contaminated sediments and dredged material. In addition, the relation of toxicity to specific oil boiling-point fraction ranges was explored. Natural marine sediment, with a moisture, organic carbon, and silt content of approximately 80, 1.8, and 33% of the dry weight, respectively, was artificially spiked using a spiking method developed in this project. Aliquots of one part of the sediment were spiked to several concentrations of Gulf distillate marine grade A (DMA) gasoil (containing 64% C10-19) and aliquots of the other part to several concentrations of Gulf high viscosity grade 46 (HV46) hydraulic oil(containing 99.2% C19-40). Thus, for each individual oil type, a concentration series was created. Vibrio fischeri (endpoint: bioluminescence inhibition), Corophium volutator (endpoint: mortality), and Echinocardium cordatum (endpoint: mortality) were exposed to these spiked sediments for 10 min, 10 d and 14 d, respectively. Based on the test results, the effective concentration on 50% of the test animals was statistically estimated. For DMA gasoil and HV46 hydraulic oil, respectively, the effective concentrations were 43.7 and 2,682 mg/kg dry weight for V. fischeri, 100 and 9,138 mg/kg dry weight for C. volutator, 190, and 1064 mg/kg dry weight for E. cordatum. This study shows that the toxicity is strongly correlated with the lower boiling-point fractions and especially to those within the C10-C19 range.
The influence of redox potential on the degradation of halogenated methanes
Olivas, Y. ; Dolfing, J. ; Smith, G.B. - \ 2002
Environmental Toxicology and Chemistry 21 (2002)3. - ISSN 0730-7268 - p. 493 - 499.
milieuchemie
To determine the influence of redox potential on the reaction mechanism and to quantify kinetics of the dechlorination by digester sludge, the test compounds trichlorofluoromethane (CFCl3), carbon tetrachloride (CCl4), and chloroform (CHCl3) were incubated in the presence of sludge and variable concentrations of reducing agent. Different sources of dehalogenation were examined, including live sludge and heat-killed sludge, and abiotic mechanisms were quantified in the absence of sludge. Batch incubations were done under redox conditions ranging from +534 to -348 mV. The highest rates for the dehalogenation of the three compounds were observed at -348 mV. The dechlorination rate of all the compounds by the heat-resistant catalysts was approximately twofold higher than the live treatments. It was proposed that the higher degradation rates by heat-killed sludge were due to the absence of physical barriers such as cell wall and cell membranes. There was no abiotic dechlorination of CFCl3, whereas CCl4 and CHCl3 were both reduced in the absence of sludge catalyst by Ti (III) citrate at ≥2.5 mM. The degradation pathways of CFCl3 and CHCl3 appeared to be only partially reductive since the production of reduced metabolites was low in comparison with the total amount of original halogenated compounds degraded. For CFCl3, the partial reductive degradation implied that different intra- and extra-cellular pathways were concurrent. The Gibbs free energy and the redox potential for the dehalogenation reactions utilizing Ti (III) citrate and acetate as electron donors are reported here for the first time.
Ecotoxicologisch en milieuchemisch onderzoek naar de risico's op de overgang water - oever - land; Sliedrechtse Biesbosch - 2000
Postma, J.F. ; Keijzers, C.M. ; Pol, J.J.C. van der; Faber, J.H. ; Belfroid, A.C. - \ 2001
Unknown Publisher
bodemverontreiniging - ecotoxicologie - milieuchemie - waterbodem - Zuid-Holland - Biesbosch
The fate of chlorinated aromatic compounds in anaerobic environments
Dolfing, J. ; Japenga, J. - \ 2000
In: Chemodynamics and water quality protection in natural porous media; proceedings of the joint working group meetings. Luxembourg, EC, 2000. EUR 19247 EN / Behra, P., Aagaard, P., Budbur, E., - p. 135 - 140.
milieuchemie - milieuverontreiniging
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