Hidrológiai Közlöny 1983 (63. évfolyam)

8. szám - V. Balogh Katalin–Salánki János: Nehézfémszennyezettség vizsgálata biológiai teszt alkalmazásával a Zala alsó szakaszán

.336 Hidrológiai Közlöny 1983. 8. sz. V. Balogh K.—Salánki J.: Nehézfémszennyezettség Pb és Fe koncentrációja 50%-kal nőtt. Időközben a Cu és Mn esetében is fellépett koncentrációnövekedés és a többi fém esetében is mérhetők voltak magasabb értékek. 3. Az eredmények azt mutatják, hogy a Zala nehézfémterhelése időszakosan változik és a különböző fémek koncentrációjának növekedése eltérő időpontokban következik be. IRODALOM fl] Bryan, G. W. api] Uysal, H. (1978): Heavy metals in the burrowing bivalve Sero ticularia plana from the Tamar estuary in relation to environmental levels. J. mar. biol. 'Ass. U. K 58, 89—108. [2] Frankenne, F., Noel-Lambot, F. and Disteche, A. (1980): Isolation and characterization of metallothioneins from cadmium-loaded mussel Mvtilus edulis. Comp. Biochem. Physiol., 66C, 179—182. [3] Oodberg, E. D., Bowen, V. T., Farrington, J. Harvey, G., Martin, ./. HParker, P. L., Risebrough, B. IV.

, Robertson, W.

, Sehneider, E. and Gamble, E. (1978): The mussel watch. Environmental Conservation, 5, 101—125. [4] Hatch, W. R. and Ott, \V. L. (1968): Determination of submicrogram quantities of mercury by atomic absorption spectroscopy. Anal. Chem., 40, 2085— —2087. 1

5] Knrhc, L., Antonacopoulos, N. and Schnier, C. (1975): The influence of water quality on accumulation of heavy metals in aquatic organisms. Verh. Internat. Verein. Limnol., 19, 2094—2101. [6] Krishnamurty, K. V., Shpirt, E. and Reddy, M. M. (1976): Trace metal extraction of soils and sediment by nitric acid- hydrogen peroxide. Atomic Absorption Newsletter, 15, 68—70. [7] Müller, G. (1981): Heavy metals and nutrients in sediments of Lake Balaton, -Hungary. Environmental Technology Letters, 2, 39—48. [8] Paus, P. E. (Í972): Bomb decomposition of biological materials. Atomic Absorption Newsletter, 11, 129—130. [9

]Podani, J., Kovács, M., és Dinka, M. (1979): A balatoni nád elemtartalmának vizsgálata. 1. A nád szerveinek összehasonlítása, az elemek közötti korrelációk. Bot. Közlem., 66, 275—284. [ 10] Roberts. D. (1976): Mussels and pollution. In: BAYNE, B. L. (Ed.) Marine mussels: their ecology and physiology. Cambridge University Press. Cambridge

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—Melbourne, pp 67—80. [11] Roesijadi, G. and Hall, R. E. (1981): Characterization of mercury-binding proteins from the gills of marine mussels exposed to mercury. Comp. Biochem. Physiol., 70C, 59—64. [12] Salánki, J. (1976): Kagyló-teszt vízszennyezések biológiai hatásának vizsgálatára. Hidrológiai Közlöny, 6, 281—282. [13] Salánki, J. and Varanka, I. (1976): Effect of copper and lead compounds on the activity of the fresh-water mussel. Annal. Biol. Tihany, 43, 21 — —27. [14] Salánki ./. (1977): Környezeti tényezők hatása a tavi kagyló endogén ritmusára. Annid. Biol. Tihany, 44, 123—136. [15] Salánki, ,/., V.-Balogh, K. és Berta. E. (1981): Nehézfémek koncentrációja balatoni állatokban. Hidrológiai Közlöny, 61, 525—530. [16] Schulz-Baldes, M. (1974): Lead uptake from sea water and food, and lead loss in the common mussel Mytilus edulis. Marine Biology, 25, 177— —193. [17] Teheráni, D. K„ Altmann, H

., IVallisch, G., Kovács, J. and Kiss, B. (1981): Die Akkumulation von Pb, Hg, Cd, Se, Sc, Cr, Rb, Fe, Zn, Co in Pflanzen und Schlamm des Plattensees. Radiochem. Radioanal. Letters, 46, 203—220. [18] Viarengo, A., Pertica, M

., Mancinelli, O., Zanicchi, G. and Orunesu, M. (1980): Rapid induction of copperbinding proteins in the gills of metal exposed mussels. Comp. Biochem. Physiol., 67C, 215—218. [19] Zaroogian, O. E. and Cheer, S. (1976): Accumulation of cadmium by the American oyster, Crassostrea virginica. Nature, 261, 408—410. Bio assay on heavy-metal pollution on the lower reach of the Zala River by Dr. V. Balogh. K—

Dr. Salánki J., The heavy metal concentration in the gills of clams (Unio sp.) was studied between 15.04 and 30.09, 1981 in the Zala River befor the mouth to Lake Balaton. The clams were collected in open lake water and transferred to the river. The concentrations of Hg, Cd, Cu, Pb, Zn, Fe and Mn were determined at biweekly intervals by atom absorption spectrophotometry. During the period of study the concentration of the different metals was found to vary to different extents and time patterns. By the end of the period the concentration of Hg has increased 7-fold, that of Cd 4-fold, that of Zn two-fold, while that of Pb and Fe by 50 per cent over the initial value. Increases in the concentration of Cu and Mn were temporary and higher values were detected in the case of the other metals as well. From the results it has been concluded that the heavy-metal load in the Zala River is subject to periodic fluctuations and that the concentration of the different heavy metals occurs at different times.