Zobrazeno 1 - 10
of 23
pro vyhledávání: '"D. Yu. Bol'shiyanov"'
Publikováno v:
Water Resources. 48:397-403
Variations in the concentration of 137Cs in lake water over 12–19 years of its migration were reproduced with the use of exponential and sorption–diffusion models in calculations. The concentrations of 137Cs in water of the deep (Нav > 7 m) lake
Publikováno v:
Radiochemistry. 63:127-132
Contamination with 90Sr of the White Sea water in migration during 50 years is reconstructed with the use of a three-component exponential model. Т1, Т2, and Т3, the periods of half-purification of White-Sea water to remove 90Sr were 0.8, 15.4, an
Publikováno v:
Radiochemistry. 62:667-672
For 6 drainless lakes with average depths of ≤12 m, the fallout of 137Cs to water basins is reconstructed by using in calculation the sorption-diffusion model off radionuclide absorption by the bottom and the data of later (in years) monitoring of
Publikováno v:
Radiochemistry. 61:122-128
The 5–17-year migration of 137Cs in bottom sediments (BSs) of five oligotrophic lakes located on the “Chernobyl” 137Cs fallout plume was studied. The layer-by-layer analysis of the 137Cs levels in BS cores allowed determination of the 137Cs mig
Publikováno v:
Water Resources. 43:533-538
The rate of natural removal of 137Cs from water bodies in Eastern Fennoscandia is evaluated. The half-time T of water purification from global 137Cs in lake–river systems was ~6.5 years and that for river systems was 6.5–10 years. For the 15- and
Publikováno v:
Radiochemistry. 57:334-340
Sedimentation rate in deep lakes and estiaries of the Baltic, Pechora, and Laptev Seas was determined using global 137Cs as a sedimentogenesis marker. The sedimentation rate in Lake Ladoga and Levinson- Lessing Lake was 0.3–3 mm year−1, and that
Publikováno v:
Radiochemistry. 56:319-324
For a sample including 22 lakes, the 137Cs concentrations in water were determined by the sorption-diffusion model. The 137Cs levels in waters of lakes of the Kola Peninsula and Karelian Isthmus are satisfactorily described by the suggested model at
Publikováno v:
Lithology and Mineral Resources. 49:177-183
Sedimentation rate of suspensions (0.3–18.2 mm/yr) was determined on the basis of layer-by-layer distribution of 137Cs (global and Chernobyl) in the cores of bottom sediments (BS) from 16 lakes located in the high and moderate latitudes of the Nort
Publikováno v:
Water Resources. 39:556-563
The state of radioactive pollution of Lake Ladoga has been studied. The purification half-life of lake water from 90Sr was found to be 21.7 year. The ratio of 90Sr storage in lake water volume to its storage in silts (0–10 cm layer) was 2: 1. Lake
Publikováno v:
Radiochemistry. 54:205-210
Regional differences in the 90Sr transfer from catchment areas to rivers of the European Russian North and Eastern Siberia and in the rates of natural water clearance were revealed. The annual 90Sr transfer was 0.5–0.6 and 0.2–0.3%, respectively,