Heavy metals in the ecosystem components at “Degelen” testing ground of the former semipalatinsk test site
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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

Heavy metals in the ecosystem components at “Degelen” testing ground of the former semipalatinsk test site

Pag. 56-69

Iankauskas A., Lucaşenco S., Amirov A., Govenco P.
 
 
Disponibil în IBN: 16 decembrie 2013


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.

Cuvinte-cheie
tunnel, lanthanides, element,

STS, Degelen