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Heiri, O. (author), Cremer, H. (author), Engels, S. (author), Hoek, W.Z. (author), Peeters, W. (author), Lotter, A.F. (author), TNO Bouw en Ondergrond (author)Lateglacial environments at Hijkermeer, northwest Netherlands, were reconstructed by means of chironomid, diatom and pollen analyses. Diatom assemblages indicate that Hijkermeer was a shallow, oligo- to mesotrophic lake during this period. Pollen assemblages reflect the typical northwest European Lateglacial vegetation development and provide an...article 2007
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Visser, A. (author), Broers, H.P. (author), Bierkens, M.F.P. (author), TNO Bouw en Ondergrond (author)The production of gases in groundwater under contaminated locations by geochemical and biological processes is not uncommon. Degassing of these gases from groundwater and repartitioning of noble gases between water and gas phase distorts groundwater dating by 3H/3He. We observed noble gas concentrations below atmospheric equilibrium in 20 out of...article 2007
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- Lumey, L.H. (author), Stein, A.D. (author), Kahn, H.S. (author), van der Pal-de Bruin, K.M. (author), Blauw, G.J. (author), Zybert, P.A. (author), Susser, E.S. (author), TNO Kwaliteit van Leven (author) article 2007
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Donders, T.H. (author), Kloosterboer-van Hoeve, M.L. (author), Westerhoff, W. (author), Verreussel, R.M.C.H. (author), Lotter, A.F. (author), TNO Bouw en Ondergrond (author)Pollen records from fluvial deposits in The Netherlands have traditionally been used to establish continental stages for the Neogene in NW Europe. These stages are still widely used across Europe for stratigraphic correlations and palaeoclimatic studies. Despite their extensive use, the validity of this continental correlation scheme for the...article 2007
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Penkett, S.A. (author), Burgess, R.A. (author), Coe, H. (author), Coll, I. (author), Hov, O. (author), Lindskog, A. (author), Schmidbauer, N. (author), Solberg, S. (author), Roemer, M. (author), Thijsse, T. (author), Beck, J. (author), Reeves, C.E. (author), TNO Bouw en Ondergrond (author)The nitrate radical (NO3) was first measured in the atmosphere in the 1970s and suggestions were made that it could play a major role in oxidising many unsaturated hydrocarbons, such as those emitted from the biosphere. Analysis of the hydrocarbon mix over the North Atlantic Ocean suggested subsequently that the influence of NO3 radical...article 2007
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Mons, M.N. (author), van der Wielen, J.M.L. (author), Blokker, E.J.M. (author), Sinclair, M.I. (author), Hulshof, K.F.A.M. (author), Dangendorf, F. (author), Hunter, P.R. (author), Medema, G.J. (author), TNO Kwaliteit van Leven (author)The volume of cold tap water consumed is an essential element in quantitative microbial risk assessment. This paper presents a review of tap water consumption studies. Study designs were evaluated and statistical distributions were fitted to water consumption data from The Netherlands, Great Britain, Germany and Australia. We conclude that the...article 2007
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Hulskotte, J.H.J. (author), van der Gon, H.A.C.D. (author), Visschedijk, A.J.H. (author), Schaap, M. (author), TNO Bouw en Ondergrond (author)In this article we show that brake wear from road traffic vehicles is an important source of atmospheric (participate) copper concentrations in Europe. Consequently, brake wear also contributes significantly to deposition fluxes of copper to surface waters. We estimated the copper emission due to brake wear to be 2.4 kiloton per year. For...conference paper 2007
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van der Meulen, M.J. (author), van der Spek, A.J.F. (author), de Lange, G. (author), Gruijters, S.H.L.L. (author), van Gessel, S.F. (author), Nguyen, B.L. (author), Maljers, D. (author), Schokker, J. (author), Mulder, J.P.M. (author), van der Krogt, R.A.A. (author), TNO Bouw en Ondergrond (author)Background, Aim and Scope. Coastal and river plains are the surfaces of depositional systems, to which sediment input is a parameter of key-importance. Their habitation and economic development usually requires protection with dikes, quays, etc., which are effective in retaining floods but have the side effect of impeding sedimentation in their...article 2007
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Beumer, V. (author), van Wirdum, G. (author), Beltman, B. (author), Griffioen, J. (author), Verhoeven, J.T.A. (author), TNO Bouw en Ondergrond (author)Climatic change has great impacts on stream catchments and their ecology. Expectations are that more extreme climate events will result in undesired flooding in stream catchments. In the Netherlands, former floodplains with a history of agricultural use are put into use again as flooding areas for the purpose of water retention. This study...article 2007
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van den Brink, C. (author), Frapporti, G. (author), Griffioen, J. (author), Zaadnoordijk, W.J. (author), TNO Bouw en Ondergrond (author)Quantitative insight into the impact of land use on groundwater composition is vital for the sustainable management of aquifers, especially those situated in urban areas. The objective of the present study was to determine the effects of land use on groundwater composition throughout the Netherlands, relative to the influence of groundwater age,...article 2007
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Slob, A. (author), Gerrits, L. (author), TNO Bouw en Ondergrond (author)Background, Aims, and Scope. Sediment management in coastal zones is taking place in high complex environments. Present management options do not have a sophisticated way of dealing with the actual complexity of the physical and the social systems and with the unpredictability that is inherent with these systems. Therefore, a new approach in...article 2007
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Visser, A. (author), Broers, H.P. (author), van der Grift, B. (author), Bierkens, M.F.P. (author), TNO Bouw en Ondergrond (author)Recent EU legislation is directed to reverse the upward trends in the concentrations of agricultural pollutants in groundwater. However, uncertainty of the groundwater travel time towards the screens of the groundwater quality monitoring networks complicates the demonstration of trend reversal. We investigated whether trend reversal can be...article 2007
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van Helvoort, P.J. (author), Griffioen, J. (author), Hartog, N. (author), TNO Bouw en Ondergrond (author)Large groundwater resources are found in densely populated lowland areas, which consist often of young unconsolidated and reduced sediments. When anthropogenic activities lead to oxygenation of the aquifer, breakdown of the main reduced fractions, i.e. sedimentary organic matter (SOM) and pyrite, could lead to severe groundwater deterioration...article 2007
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Vautard, R. (author), Builtjes, P.H.J. (author), Thunis, P. (author), Cuvelier, C. (author), Bedogni, M. (author), Bessagnet, B. (author), Honoré, C. (author), Moussiopoulos, N. (author), Pirovano, G. (author), Schaap, M. (author), Stern, R. (author), Tarrason, L. (author), Wind, P. (author), TNO Bouw en Ondergrond (author)The CityDelta project Cuvelier et al. [2006. CityDelta: a model intercomparison study to explore the impact of emission reductions in European cities in 2010. Atmospheric Environment] is designed to evaluate the air quality response of several emission abatement scenarios for 2010 at the scale of the European continent, and specifically in the...article 2007
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TNO Bouw en Ondergrond (author), van der Meulen, M.J. (author), Maljers, D. (author), van Gessel, S.F. (author), Gruijters, S.H.L.L. (author)Clay is a common lithology in the Dutch shallow subsurface. It is used in earth constructions such as dikes, and as raw material for the fabrication of bricks, roof tiles etc. We present a new national assessment of Dutch clay resources, as part of a project that provides mineral-occurrence information for land-use planning purposes. The...article 2007
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TNO Bouw en Ondergrond (author), Schokker, J. (author), Weerts, H.J.T. (author), Westerhoff, W.E. (author), Berendsen, H.J.A. (author), den Otter, C. (author)Application of the traditional lithostratigraphic framework to subdivide the Middle- and Upper-Quaternary locally-derived fine-grained deposits in the Netherlands is problematic. Deposits of many formations cannot be distinguished from each other based on lithological characteristics and stratigraphic position alone. To overcome this problem, we...article 2007
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TNO Bouw en Ondergrond (author), van der Molen, A.S. (author), Wong, Th.E. (author)In the Netherlands North Sea area, the Chalk Group has thus far been subdivided into the Cenomanian Texel Formation, the Turonian to Maastrichtian Ommelanden Formation and the Danian Ekofisk Formation. This paper describes the attempt to arrive at a more detailed lithostratigraphic subdivision for this area, particularly of the Ommelanden...article 2007
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TNO Bouw en Ondergrond (author), Geel, C.R. (author), Donselaar, M.E. (author)Object-based stochastic modelling techniques are routinely employed to generate multiple realisations of the spatial distribution of sediment properties in settings where data density is insufficient to construct a unique deterministic facies architecture model. Challenge is to limit the wide range of possible outcomes of the stochastic model....article 2007
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TNO Bouw en Ondergrond (author), Donselaar, M.E. (author), Geel, C.R. (author)The size, shape and spatial position of lithofacies types (or facies architecture) in a tidal estuarine basin are complex and therefore difficult to model. The tidal currents in the basin concentrate sand-sized sediment in a branching pattern of tidal channels and fringing tidal flats. Away from the sandy tidal flats the sediment gradually...article 2007
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TNO Bouw en Ondergrond (author), Bakker, M.A.J. (author), Maljers, D. (author), Weerts, H.J.T. (author)Management of the Dutch embanked floodplains is of crucial interest in the light of a likely increase of extreme floods. One of the issues is a gradual decrease of floodwater accommodation space as a result of overbank deposition of mud and sand during floods. To address this issue, sediment deposits of an undisturbed embanked floodplain near...article 2007