期刊
CHINESE SCIENCE BULLETIN
卷 58, 期 13, 页码 1585-1591出版社
SCIENCE PRESS
DOI: 10.1007/s11434-012-5521-4
关键词
Fukushima nuclear accident; radionuclides; atmospheric radiation monitoring; xenon; transport pathways
Aerosol radionuclides (I-131, Cs-134, Cs-137) and gaseous radioactive xenon (Xe-133) were monitored at Xi'an, China following the accident at the Fukushima nuclear power plant in March 2011. The additional annual effective dose attributable to the Fukushima emissions was much lower than the public annual effective dose from natural radiation, according to Chinese national standards. The monitoring results were compared with data from other countries as well as with the radionuclide concentrations observed in Xi'an after the Chernobyl nuclear accident in 1986. Possible transport pathways of the released radionuclides from Fukushima to Xi'an were investigated. The occurrence of an anticyclone in the Pacific Ocean region and the extended period over which the radionuclides were released made the determination transport pathways complex, but divergence in the plume and easterly flow evidently brought the initial suite of radionuclides to Xi'an.
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