Radioactivity Monitoring of the Surface Air Layer and Atmospheric Fallout Near NPP

Atomic Energy ◽  
2019 ◽  
Vol 126 (4) ◽  
pp. 264-271 ◽  
Author(s):  
I. I. Kryshev ◽  
V. G. Bulgakov ◽  
A. I. Kryshev ◽  
M. N. Katkova ◽  
T. G. Sazykina ◽  
...  
1984 ◽  
Vol 19 (2) ◽  
pp. 97-109 ◽  
Author(s):  
R.J. Cornett ◽  
L. Chant ◽  
D. Link

Abstract The average annual flux of Pb-210 from the atmosphere to lake surfaces and to the bottom sediments was measured in seven small lakes located on the Laurentian Shield. Direct atmospheric fallout of Pb-210 was 136 ± 16 Bq m-2 a-1 Streams from the lakes' catchments input an additional 5 to 473 Bq m-2 a-1. Only 16 to 80 percent of the total input was found in the lake sediments. The fractional rate constant for Pb-210 sedimentation from the water column ranged from 0.25 to 5.3 per annum.


Author(s):  
Yohei Fujishima ◽  
Yasushi Kino ◽  
Takumi Ono ◽  
Valerie Swee Ting Goh ◽  
Akifumi Nakata ◽  
...  

We investigated the internal contamination by radioactive cesium associated with the FDNPP accident, in the testes or uterus and ovaries of free-roaming cats (Felis silvestris catus), which were protected by volunteers in the Namie Town, Fukushima. A total of 253 samples (145 testes and 108 uterus and ovaries) obtained from adult cats and 15 fetuses from 3 pregnant female cats were measured. Free-roaming cats in Namie Town had a higher level of radioactive contamination in comparison to the control group in Tokyo, as the 134Cs + 137Cs activity concentration ranged from not detectable to 37,882 Bq kg−1 in adult cats. Furthermore, the radioactivity in the fetuses was almost comparable to those in their mother’s uterus and ovaries. The radioactivity was also different between several cats protected in the same location, and there was no significant correlation with ambient dose-rates and activity concentrations in soil. Moreover, radioactive cesium levels in cats decreased with each year. Therefore, it is likely that decontamination work in Namie Town and its surroundings could affect radioactive cesium accumulation, and thus possibly reduce the internal radiation exposure of wildlife living in contaminated areas. It is hence necessary to continue radioactivity monitoring efforts for the residents living in Namie Town.


Author(s):  
Evgeny Yakovlev ◽  
Ruslan Spirov ◽  
Sergey Druzhinin ◽  
Alina Ocheretenko ◽  
Anna Druzhinina ◽  
...  

Author(s):  
H.T. Zubair ◽  
R. Rifiat ◽  
Adebiyi Oresegun ◽  
F. Hamidi ◽  
J. Othman ◽  
...  

Atomic Energy ◽  
2007 ◽  
Vol 102 (5) ◽  
pp. 402-405 ◽  
Author(s):  
A. N. Azimov ◽  
F. R. Kungurov ◽  
A. K. Mukhamedov ◽  
A. N. Safarov ◽  
I. T. Muminov

1997 ◽  
Vol 31 (9) ◽  
pp. 1339-1348 ◽  
Author(s):  
Tsuyoshi Ohizumi ◽  
Norio Fukuzaki ◽  
Minoru Kusakabe

Author(s):  
MARGARYAN V.G. ◽  

The features of the thermal regime of the surface air layer in the Debed river basin are considered. A statistical analysis of the average annual and average seasonal values of air temperature from 1964 to 2018 was carried out, two periods were identified, their time course was shown. The analysis was carried out using data from six meteorological stations representing the lowland, mountain and high-mountain climatic zones of the Debed river basin. A correlation was obtained between the absolute altitude and the monthly average values of air temperature for January and July, which can be used to assess the thermal conditions of unexplored or poorly studied territories and for cartography. The time course of average values of air temperatures for the seasonal period has been studied. Analysis of trend lines of temporal changes in air temperatures shows that in all situations on the territory of the basin as a whole, there is a tendency of temperature growth. Moreover, with a range of interannual fluctuations, a break in the course of temperatures in the early to mid 1990 is clearly visible, after which their significant increase began. It turned out that a significant increase in seasonal temperatures is observed especially over the period 1993-2018, which means that the annual warming after the mid 1990 occurred primarily due to summer and spring seasons. The regular dynamics indicates that in the studied area in terms of temperatures, a tendency of softening winters, a decrease in the water content of rivers, aridization of the climate. The results obtained can be used to assess the regularities of the spatial-temporal distribution of the temperature of the study area, to clarify the thermal balance, for the rational use of heat resources, as well as in the development of strategic programs for longterm analysis.


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