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A long-term soil leaching column experiment investigating the effect of variable sulphate loads on soil solution and soil drainage chemistry
1999
Hodson, M.E. | Langan, S.J. (Macaulay Land Use Research Institute, Craigiebuckler, Aberdeen AB15 8QH (United Kingdom))
Accumulation of 137Cs and 90Sr from contaminated soil by three grass species inoculated with mycorrhizal fungi
1999
Entry, J.A. | Watrud, L.S. | Reeves, M. (USDA Agricultural Research Service, Northwest Irrigation and Soil Research Laboratory, 3793 N 3600 E, Kimberly, ID 83341 (USA))
Pesticide residue assessment in three selected agricultural production systems in the Choluteca River Basin of Honduras
1999
Kammerbauer, J. | Moncada, J. (Pan-American Agricultural School, Zamorano, Apartado Postal 93, Tegucigalpa (Honduras))
Accumulation of heavy metals in plants grown on mineralised soils of the Austrian Alps
1999
Wenzel, W.W. | Jockwer, F. (Institute of Soil Science, Universitat fur Bodenkultur, Gregor-Mendel-Strasse 33, A-1180 Vienna (Austria))
Fate of organochlorine pesticides in soils and terrestrial biota of Los Padres pond watershed, Argentina
1999
Miglioranza, K.S.B. | Aizpun de Moreno, J.E. | Moreno, V.J. | Osterrieth, M.L. | Escalante, A.H. (Laboratorio de Ecotoxicologia, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Funes 3350, 7600 Mar del Plata (Argentina))
Identification of oxidized TNT metabolites in soil samples of a former ammunition plant
1999
Bruns-Nagel, Dirk | Schmidt, Torsten C. | Drzyzga, Oliver | Löw, Eberhard v | Steinbach, Klaus
Water extracts of soil samples of the former ammunition plant “Tanne” near Clausthal-Zellerfeld, Lower Saxony, Germany, were investigated for highly polar oxidized 2,4,6-trinitrotoluene (TNT) metabolites. 0.4 to 9.0 mg/kg dry soil 2,4,6-trinitrobenzoic acid (TNBA) and 5.8 to 544 mg/kg dry soil 2-amino-4,6-dinitrobenzoic acid (2-ADNBA) were found. In addition to the oxidized metabolites, TNT, 4- and 2-aminodinitrotoluene (4- and 2-ADNT), and 2,4-dinitrotoluene (2,4-DNT) were extractable with water. Most interestingly, in one sample, 2-ADNBA represented the main contaminant.The origin of the oxidized nitroaromatics is unknown at this time. They might be generated chemically or photochemically. Furthermore, a biological synthesis seems possible.
Afficher plus [+] Moins [-]Anthropogenic platinum fluxes: Quantification of sources and sinks, and outlook
1999
Helmers, Eckard | Kümmerer, Klaus
Employing the data available to date, anthropogenic Pt fluxes are calculated for Germany with special emphasis on the Pt emitted by cars equipped with catalytic converters. Pt fluxes are quantified using five different methods (street deposition, automobile emission rate, sewage sludges, atmospheric load, industrial consumption). During the first and the second methods, approx. 100 kg of emitted Pt are seen to result for both for the mid 1990’s. Up to the year 2018, a total of 2100 kg of Pt will be emitted by cars equipped with catalytic converters. The diffuse atmospheric Pt deposition amounts to 0.73 – 4.4 μg/m²y or 260 kg Pt/year. Industrial sources emitting Pt into the atmosphere are likely but difficult to quantify. The enrichment of Pt in soils during agriculture fertilization with sewage sludges and during diffuse atmospheric deposition result in a level of 46 – 460 ng/kg up to the year 2018. Although this is slightly below the geogenic background, a comparison with the pollution history of Pb implies that forthcoming environmental Pt enrichment should not be neglected.
Afficher plus [+] Moins [-][Investigation of a 40-year old point source: a disused washing/filling place]
1999
Jacobsen, O.S.
[Application of simple models to describe the distribution of vapour and heat in soil when stripping soil with vapour]
1999
Larsen, T.H.
[ISO-standards: constraints or options?]
1999
Kruse, M.A. | Kirkegaard, C. | Faarbaek, A. | Samsoee-Petersen, L.
