Temat: air contamination - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Fluctuation of radiocaesium concentrations in the near-surface atmospheric layer in Białystok in the period 1992-1999
Autorzy:: Kapała, J.
Zalewski, M.
Tomczak, M.
Mnich, Z.
Karpińska, M.
Powiązania:: https://bibliotekanauki.pl/articles/147161.pdf
Data publikacji:: 2002
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: air contamination
Chernobyl accident
Cs-137
Opis:: Air samples were collected at an early-warning sampling and monitoring radioactive contamination station ASS-500. The results of the measurements are presented for radioactive aerosols collected on filters each week between 1992 and 1999. The large variations in activity concentration were observed in annual cycles. The maximum values exceeded the mean annual values by a factor of 2.8 to 7.3. Over the period of eight years the mean values of activity in air was found to decrease from 5.3 mi Bq m-3 in 1992 to 2.2 mi Bq m-3 in 1999. A good correlation between the Cs-137 activity and dust content in the air indicates that in the observed period the main source of Cs-137 activity is the dust with soil and vegetation particles. The effect of radiation from inhalation is negligible (626 pSv).
Źródło:: Nukleonika; 2002, 47, 2; 69-73
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Assessment of regularities of ground-level air radionuclide contamination at the Russian coast of the Baltic Sea in the course of the long-term Leningrad Nuclear Power Plant (1983-1999) operation
Autorzy:: Blinova, L.
Goloubeva, L.
Dushin, V.
Michurina, T.
Powiązania:: https://bibliotekanauki.pl/articles/148106.pdf
Data publikacji:: 2001
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: air contamination
artificial radionuclides
7Be
nuclear power plant
Opis:: Long-term results of ground-level air radionuclide contamination at the Russian coast of the Baltic Sea (nuclear facilities in the vicinity of the town of Sosnovy Bor) are under consideration. As compared with 1992-1997 [1], the Leningrad Nuclear Power Plant (NPP) equipment hermetic sealing (in 1998-1999) caused both the reduction of detection frequency of 131I aerosol and the maximum concentrations of 137Cs in the ground-level air at the NPP site. Long-term weekly nuclides' concentration time series were examined by the correlation analysis. Results of the analysis are presented. The seasonal fluctuations of 7Be concentrations in the ground-level air were examined by the harmonic (Fourier) analysis. The seasonal fluctuations of its concentrations with the maximum in spring-summer period are shown.
Źródło:: Nukleonika; 2001, 46, 4; 179-182
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

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