Contents of heavy metals in the sediments of fish-ponds and their possible mobility because of changing physical-chemical factors of environment
2001
Kezic, V. | Lompar, O. | Lehoczki, I. | Tohati, L. | Stanic, A. | Jovanic, S. (Zavod za zastitu zdravlja, Subotica (Yugoslavia))
One of the very dangerous pollution of environment are heavy metals. They are "indestructible" at the condition which leads at the environment. Pollution of heavy metals is irreversible process, except if they are physical removed from the environment which they are polluting. We determinated heavy metals (Pb, Cd, Cu, Zn, Cr, Ni and Co) in the mud of three fish ponds by means of sequential extraction, because of possible mobility in the mud and its concentration increase in the water. This method was selected because we wanted to determine distribution of heavy metals by substrates, and analyse was worked by the method of AAS. The results are showing that the concentration of all metals is in the extent of "natural phone" of lakes sediment.
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