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Metal-pollution index (MPI) - proposal for freshwater monitoring
1999
Teodorovic, I. (Univerzitet u Novom Sadu, Novi Sad (Yugoslavia). Prirodno-matematicki fakultet, Institut za biologiju) | Djukic, N. | Maletin, S. | Miljanovic, B.
MPI - Metal Pollution Index is being proposed with an aim improving the freshwater pollution control, monitoring and classification based on fish metal body burden. This is a simple mathematical model which enables presentation of Cd, Pb, Cu, Zn and Al fish liver concentration as a single value. After thorough studies of bioaccumulation, biomagnification and tissue distribution patterns, liver of Carassius auratus gibelio has been chosen as sentinel organ. Normal distribution and biological variation assessment is being achieved by using normalizers - reference values (liver concentrations of selected elements in fish from reference sites Vruje and Moharac micro water reservoirs, Serbia (Yugoslavia)). Selected representative sites have been evaluated according to new classification of freshwater ecosystem based on MPI values.
Show more [+] Less [-]The Vlasina river [Serbia, Yugoslavia] - water quality, environmental quality assessment and preservation
1999
Paunovic, M. | Kalafatic, V. | Martinovic, J. | Jakovcev, D. | Martinovic-Vitanovic, V. (Institut za bioloska istrazivanja "Sinisa Stankovic", Beograd (Yugoslavia))
The paper presents results of the hydroecological investigations of the Vlasina river basin, Serbia (Yugoslavia). The researches were performed in May and September 1996, as a part an annual investigation cycle. Samples were collected from five localities on the Vlasina river, and on two spots on its main tributaries - the Gradska river and Luznica, just before entering into the Vlasina. Qualitative and quantitative data on composition of phyto- and zooplankton, periphytic and benthic communities together with data obtained from physico-chemical water examinations were analysed to assess water quality of examined water courses. The results of performed monitoring were compared with informations on the sources of pollution, as well as with the data on hydrology, geomorphology, demographic variations, and recent development of tourism and industry in the Region in order to assess environmental quality of aquatic ecosystem and to suggest the conservation strategy.
Show more [+] Less [-]Airborne trichloroacetic acid and its deposition in the catchment area of the Caspian sea
1999
Weissflog, L. | Manz, M. | Popp, P. | Elansky, N. | Arabov, A. | Putz, E. | Schuurmann, G. (UFZ-Centre for Environmental Research, Department of Chemical Ecotoxicology, PF 2, 04301 Leipzig (Germany))
Changes in heavy metal contents in an acidic forest soil affected by depletion of soil organic matter within the time span 1969-93
1999
Egli, M. | Fitze, P. | Oswald, M. (Institute of Geography, University Zurich-Irchel, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland))
Acid deposition in Wales: the results of the 1995 Welsh acid waters survey
1999
Reynolds, B. | Lowe, J.A.H. | Smith, R.I. | Norris, D.A. | Fowler, D. | Bell, S.A. | Stevens, P.A. | Ormerod, S.J. (Institute of Terrestrial Ecology, Bangor Research Unit, University of Wales Bangor, Deiniol Road, Bangor, Gwynedd LL57 2UP, Wales (United Kingdom))
Aquatic bryophytes for a spatio-temporal monitoring of the water pollution of the rivers Meuse and Sambre (Belgium)
1999
Vanderpoorten, A. (Faculte Universitaire des Sciences Agronomiques de Gembloux, Zoologie Generale and Appliquee, 2, Passage des Deportes, B-5030 Gembloux (Belgium))
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))
Long-term bioaccumulation monitoring with transplanted bivalves in the San Francisco Estuary
1999
Gunther, A.J. | Davis, J.A. | Hardin, D.D. | Gold, J. | Bell, D. | Crick, J.R. | Scelfo, G.M. | Sericano, J. | Stephenson, M. (Applied Marine Sciences, Inc., 4749 Bennett Dr., Suite L, Livermore, CA 94550 (USA))
Measurements of selected PCBs in open urban ambient air of Madrid (Spain) : First results
1999
García-Alonso, Susana | Pérez-Pastor, Rosa María | Sevillano-Castaño, María Luisa
The focus of this study was to characterize the concentration levels of selected PCBs and compare them to compiled data in order to contribute to the international database. The sampling site is located in the outskirts of Madrid and can be considered an open urban area. 32 samples of air were taken from February 1998 to June 1998 by using a high volume air sampler. Glass fiber filters and polyurethane foam (PUF) were used to collect the paniculate and gas phase material, respectively.PUF plugs were Soxhlet extracted and filters were ultrasonically extracted by using pesticide-grade hexane and dichloromethane, respectively. The cleanup procedure was carried out on a florisil column with hexane and hexane/dichloromethane as elution solvents.GC/MS in a selected ion monitoring mode was used for quantification and 29 selected PCBs congeners were analyzed.
Show more [+] Less [-][Surveying groundwater under new dumping sites]
1999
Lund, E.