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SM ISO690:2012 IANKAUSKAS, A., LUCAŞENCO, S., AMIROV, A., GOVENCO, P.. Heavy metals in the ecosystem components at
“Degelen” testing ground of the former semipalatinsk test site
. In: Chemistry Journal of Moldova, 2012, nr. 1(7), pp. 56-69. ISSN 1857-1727. |
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Chemistry Journal of Moldova | |||||
Numărul 1(7) / 2012 / ISSN 1857-1727 /ISSNe 2345-1688 | |||||
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Pag. 56-69 | |||||
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Rezumat | |||||
The ecological situation in the former Semipalatinsk test site is characterized by a combination of both
radiative and “nonradiative” factors. There were investigated near-portal areas of the tunnels with water seepage
at “Degelen” site. All the tunnel waters are characterized by higher concentrations of uranium, beryllium, and
molybdenum. The watercourse of the tunnel # 504 is unique for its elemental composition, in particular, the content
of rare earth elements, whose concentration in the water is in the range n*10-5 – n*10-7 %. Of all the rare earth
elements in the samples were found 13, the concentrations of aluminum, manganese, zinc are comparable to the
concentrations of macro-components. Concentration of 238U in the studied waters lie in the range of n*10-4 – n*10-6
%, which suggests the influence of uranium, not only as a toxic element, but its significance as the radiation factor.
The analysis of complex data obtained showed that the elevated concentrations of heavy metals in the soils of the
areas under study, as a rule, are a consequence of the carry-over of these metals by water flows and their subsequent
deposition in the sediments.
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Cuvinte-cheie tunnel, lanthanides, element, STS, Degelen |
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