辐射防护2012，Vol.32Issue(6)：380-385,391,7.
日本福岛核事故期间浙江省环境放射性的监测结果及分析
Monitoring Results and Analysis of Environmental Radioactivity in Zhejiang Province during Japan's Fukushima Nuclear Power Station Accident
摘要
Abstract
In this paper, monitoring results of gamma-ray absorbed dose rates, xenon gas concentrations and levels of artificial radioactive nuclides in aerosol, rainwater and living organisms sampled in Zhejiang Province during the Fukushima accident are presented. The monitoring results show that the averaged γ radiation dose rate of Zhejiang Province was 65.2 nGy/h, which was mainly consistent with the backgro und level; comparing with background, concentrations of mXe and 133mXe ascended significantly since March 25, then descended gradually in early May that echoed with the concentration variations of 131I, 134Cs and 137Cs in aerosol samples at the same spot; Trace amount of 131I was detected in sampled rainwater from Hangzhou on April 3, the concentrations of which by radiochemical method and γ spectrometry were 0. 18 Bq/L and 0.24 Bq/L respectively; Trace amount of artificial radioactive nuclid es 131I and 137Cs were detected in green vegetables and spinach samples on April 7, but no artificial radioac tire nuclides were detected in milk, fish and other biological samples. The results indicate that the accident in Japan caused slight affection to the environment of Zhejiang Province during late March to mid April with part of the monitoring results slightly above the background.关键词
福岛核电站事故/辐射监测/环境放射性/浙江Key words
Fukushima Nuclear Power Station accident/radiation monitoring/environmental radioactivity/Zhejiang分类
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刘鸿诗,胡丹,向元益,胡晓燕..日本福岛核事故期间浙江省环境放射性的监测结果及分析[J].辐射防护,2012,32(6):380-385,391,7.
