خيارات البحث
النتائج 1 - 10 من 14
Clearance of atrazine in soil describing xenobiotic behavior.
1996
Hari T. | Arx R. von | Ammon H.U. | Karlaganis G.
Evaluation of fate and exposure models - Fate of pulp mill effluent compounds in a Finnish watercourse.
1994
Trapp S. | Rantio T. | Paasivirta J.
Chloroorganic chemicals emitted from the pulp and paper mill at Nekoski in central Finland were monitored for several years. Concentration time series are used for evaluating the environmental fate and the applicability and validity of an exposure models. Fitted elimination rates of 3,4,5-Tri-, 4,5,6-Tri-, Tetrachloroguaiacol and 2,4,6-Trichlorophenol are approx. 0.22 per day, or rather the half-lives are approx. 3 days. The elimination is most likely by biodegradation and transport-controlled. For 2,3,6-trichloro-p-cymene, fate simulations indicate significant volatilization and sedimentation. Good agreement is achieved with a one-dimensional steady-state box model, except for concentrations in fish. For a reliable assessment of environmental damage, laboratory experiments, monitoring and simulations need to be in tune.
اظهر المزيد [+] اقل [-]Uptake of terbuthylazine and its medium polar metabolites into maize plants.
1995
Gayler S. | Trapp S. | Matthies M. | Schroll R. | Behrendt H.
[Detection of degradation products using chemical and biological methods [intrinsic bioremediation]]
1997
Dyreborg, S.
The distribution of 14C-TNT in different biochemical compartments of the monocotyledonous Triticum aestivum
1999
Sens, C. | Scheidemann, P. | Werner, D. (Fachgebiet Zellbiologie und Angewandte Botanik der Philipps Universitat Marburg, D-35032 Marburg (Germany))
Concentrations of some organochlorines in otters (Lutra lutra L.) in Scotland: implications for populations
1996
Kruuk, H. | Conroy, J.W.H. (Institute of Terrestrial Ecology, Banchory AB31 4BY (United Kingdom))
The effect of simulated acid rain on the biochemical composition of Scots pine (Pinus sylvestris L.) needles
1996
Shumejko, P. | Ossipov, V. | Neuvonen, S. (Institute of Forest, Krasnoyarsk, 660036 Akademgorodok (Russian Federation))
U.S. long-term coastal contaminant temporal trends determined from mollusk monitoring programs, 1965-1993
1999
Lauenstein, G.G. | Daskalakis, K.D. (National Oceanic and Atmospheric Administration, National Status and Trends Program, N/ORCA21 1305 East West Highway, Silver Spring, MA 20910 (USA))
Enantioselective analysis of organochlorine pesticides in herring and seal from the Swedish marine environment
1998
Wiberg, K. | Oehme, M. | Haglund, P. | Karlsson, H. | Olsson, M. | Rappe, C. (Institute of Environmental Chemistry, Umea University, S-901 87 Umea (Sweden))
A wind tunnel for measuring the gaseous losses of environmental chemicals from the soil/plant system under field-like conditions
1994
Stork, A. (Forschungszentrum Juelich GmbH (Germany). Inst. fuer Radioagronomie) | Witte, R. | Fuehr, F.
Volatilization from treated areas is a major source of pesticide residues in air, fog, and rain. This may lead to long-range transport of pesticide residues to remote areas. Up to now most information on pesticide volatilization has come from laboratory experiments under controlled conditions. A new system has been designed and developed to measure the volatile losses of (l4)C-labelled chemicals after application; the method compares with agricultural practice of treating soils or plants grown in lysimeters. Sensitive analytical methods guarantee a distinction between residues of unchanged pesticide, its metabolites or (14)CO2 as a mineralization product released into the air.
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