PU-239(240), PU-238, SR-90, RU-103 AND CS-137 CONCENTRATIONS IN SURFACE AIR IN AUSTRIA DUE TO DISPERSION OF CHERNOBYL RELEASES OVER EUROPE

被引：25

作者：

IRLWECK, K

KHADEMI, B

HENRICH, E

KRONRAFF, R

机构：

[1] Institute of Inorganic Chemistry, University Vienna A-1090

[2] Federal Institute for Food Control and Research, Department of Radiation Protection, A-1090 Vienna

[3] Federal Institute for Food Control and Research, Department of Radiation Protection, A-4017 Linz

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 1993年 / 20卷 / 02期

关键词：

D O I：

10.1016/0265-931X(93)90038-9

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

After the reactor accident at Chernobyl on 26 April 1986, Austria, situated in the central part of Europe, was one of the most stricken countries. Radionuclide concentrations in surface air have been measured at five different sampling stations, viz. in Vienna, Linz, Salzburg, Bregenz and Klagenfurt, during the period 28 April-9 May 1986. In addition to the results of the gamma-spectroscopic measurements of Ru-103 and Cs-137 data for Pu-239(240), Pu-238 and Sr-90 determined by radiochemical analyses of the same air filters are presented. These results show that in Austria generally most of the Cs-137 and Ru-103 contamination occurred before 2 May, whilst most of the Sr-90 and Pu-239(240) contamination took place between 2-5 May. Initially Ru-103/Cs-137 ratios of approximately 2 could be observed, which later decreased to 0.3-0.6 and increased again after 2 May, up to as high as 5. The ratios of Sr-90/Cs-137 remained between 0.004 and 0-017, those of Pu-239(240)/Cs-137 between 1.3 x 10(-6) and 2 x 10(-5).

引用

页码：133 / 148

页数：16

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