W baeyens (14 Ergebnisse)
Verlag: Liege : Editions Du C. I. R. I. E. C. 1960
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First Edition. Very good paperback copy. Spine bands and panel edges slightly dust-toned and rubbed as with age. Remains particularly well-preserved overall; tight, bright, clean and strong; 8vo 8" - 9" tall; 300 pages; Physical desc. : 300 p. : illus. , port. ; 21 cm. Subject: Milhaud, Edgard, 1873-1964. Collectivism. Economic…Policy. Industrial policy 3 Kg.
Sprache: Englisch
Verlag: Springer 2010
Serie: Developments in Hydrobiology, Buch 31 von 40. Buch 31 von 40 - Developments in Hydrobiology
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Taschenbuch. Zustand: Neu. Trace Metals in the Westerschelde Estuary: A Case-Study of a Polluted, Partially Anoxic Estuary | W. Baeyens | Taschenbuch | xvi | Englisch | 2010 | Springer | EAN 9789048150625 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]sprin…ger[dot]com | Anbieter: preigu.
Sprache: Englisch
Verlag: Springer Netherlands, Springer 2010
Serie: Developments in Hydrobiology, Buch 31 von 40. Buch 31 von 40 - Developments in Hydrobiology
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Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Oceans and lakes are characterized by large residence times and can thus be considered as being in an equilibrium or quasi-equilibrium state. In contrast, estuaries, which constitute the interface between the fresh water and marine ecosystems, are bi…ogeochemically and physically very dynamic. Strong gradients in physical and chemical variables such as temperature, pH, salinity, dissolved oxygen, nutrients, amount and composition of particulates result from the mixing of fresh water and saline end members. These gradients provoke increased biogeochemical processes, generally resulting in a geochemical filter (the area of high turbidity, showing enhanced adsorption-desorption processes) and a biological filter (the area of high plankton activity showing, besides a high uptake of nutrients, a high accumulation of trace metals). Both filters disturb the conservative mixing pattern of the trace metals in an estuary. In addition, four aspects make the Scheldt estuary very unusual and different from other estuaries: the Scheldt is a tide-governed estuary which means larger residence times; the upper estuary receives large inputs of biodegradable organic matter which leads to oxygen depletion in winter and to anoxic conditions in summer; inputs of toxic pollutants occur in the upper estuary by the industrial park of Antwerp; the anoxic zone, the zone of pollutant input and the zone of the turbidity maximum coincide geographically. The Scheldt estuary is thus an ideal field laboratory for the study of biogeochemical processes which do not occur elsewhere, or only partially, to a very low extent or in a specific compartment, i.e. the sediments. More specifically, redox processes involving trace metals, the formation of non-labile metal complexes, and the methylation of mercury occur as a result of anoxic conditions and the high load of organic matter. Several models describing indetail the transport, the sedimentation and the speciation of the trace metals in this well-mixed estuary (all major estuaries in EC countries adjacent to the North Sea or the Atlantic Ocean are well-mixed) are presented in this book. A comparison of the metal concentrations over a 15-year period shows a net reduction of the pollution level.
Sprache: Englisch
Verlag: Springer Netherlands, Springer Netherlands 1998
Serie: Developments in Hydrobiology, Buch 31 von 40. Buch 31 von 40 - Developments in Hydrobiology
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Anbieter: AHA-BUCH GmbH, Einbeck, DeutschlandAHA-BUCH GmbH
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Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Oceans and lakes are characterized by large residence times and can thus be considered as being in an equilibrium or quasi-equilibrium state. In contrast, estuaries, which constitute the interface between the fresh water and marine ecosystems, are biogeoche…mically and physically very dynamic. Strong gradients in physical and chemical variables such as temperature, pH, salinity, dissolved oxygen, nutrients, amount and composition of particulates result from the mixing of fresh water and saline end members. These gradients provoke increased biogeochemical processes, generally resulting in a geochemical filter (the area of high turbidity, showing enhanced adsorption-desorption processes) and a biological filter (the area of high plankton activity showing, besides a high uptake of nutrients, a high accumulation of trace metals). Both filters disturb the conservative mixing pattern of the trace metals in an estuary. In addition, four aspects make the Scheldt estuary very unusual and different from other estuaries: the Scheldt is a tide-governed estuary which means larger residence times; the upper estuary receives large inputs of biodegradable organic matter which leads to oxygen depletion in winter and to anoxic conditions in summer; inputs of toxic pollutants occur in the upper estuary by the industrial park of Antwerp; the anoxic zone, the zone of pollutant input and the zone of the turbidity maximum coincide geographically. The Scheldt estuary is thus an ideal field laboratory for the study of biogeochemical processes which do not occur elsewhere, or only partially, to a very low extent or in a specific compartment, i.e. the sediments. More specifically, redox processes involving trace metals, the formation of non-labile metal complexes, and the methylation of mercury occur as a result of anoxic conditions and the high load of organic matter. Several models describing indetail the transport, the sedimentation and the speciation of the trace metals in this well-mixed estuary (all major estuaries in EC countries adjacent to the North Sea or the Atlantic Ocean are well-mixed) are presented in this book. A comparison of the metal concentrations over a 15-year period shows a net reduction of the pollution level.
Sprache: Englisch
Verlag: Springer 2010
Serie: Developments in Hydrobiology, Buch 31 von 40. Buch 31 von 40 - Developments in Hydrobiology
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Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Essential themes in the biochemical cycling of mercury are the relative importance of anthropogenic versus natural sources, transformation and migration processes at the local, regional and global scale, global emission inventories of different mercu…ry sources (both point and diffuse) of both natural and anthropogenic origin. In this regard, Siberia, with its vast territory and variety of natural zones, is of special interest in the global mercury cycle and in terms of the influence of geographical zones on source and sink terms in regional budgets. Siberia contains large areas of mercuriferous belts; natural deposits that emit mercury into the atmosphere and water. Siberian gold has been mined with the use of mercury since the early 1800s. But there, too, huge forest zones and vast areas of tundra and wetland (bogs) can act as efficient sinks for atmospheric mercury. Audience: Environmental scientists, legislators, politicians and the interested citizen wishing to gain a clear picture of the biogeochemical cycling of mercury.
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Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Essential themes in the biochemical cycling of mercury are the relative importance of anthropogenic versus natural sources, transformation and migration processes at the local, regional and global scale, global emission inventories of different mercury sour…ces (both point and diffuse) of both natural and anthropogenic origin. In this regard, Siberia, with its vast territory and variety of natural zones, is of special interest in the global mercury cycle and in terms of the influence of geographical zones on source and sink terms in regional budgets. Siberia contains large areas of mercuriferous belts; natural deposits that emit mercury into the atmosphere and water. Siberian gold has been mined with the use of mercury since the early 1800s. But there, too, huge forest zones and vast areas of tundra and wetland (bogs) can act as efficient sinks for atmospheric mercury. Audience: Environmental scientists, legislators, politicians and the interested citizen wishing to gain a clear picture of the biogeochemical cycling of mercury.
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Zustand: New. Proceedings of the NATO Advanced Research Workshop on Regional and Global Mercury Cycles: Sources, Fluxes and Mass Balances, Novosibirsk, Russia, July 10-14, 1995 Editor(s): Baeyens, Willy R. G.; Ebinghaus, Ralf; Vasiliev, Oleg. Series: NATO Science Partnership Subseries: 2. Num Pages: 591 pages, biography. BIC Cla…ssification: PBWH; RNC; RNP. Category: (P) Professional & Vocational; (UP) Postgraduate, Research & Scholarly; (UU) Undergraduate. Dimension: 240 x 160 x 44. Weight in Grams: 1301. . 1996. Hardback. . . . . Books ship from the US and Ireland.
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Hardcover. 128) 0.0.
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