The impact of Japanese Fukushima nuclear accident on environmental radiation levels in some areas of Liaoning province

作者：Shi Erwei, Yong Cui, Qian Zhang, Li Di, Xin Li, Yao Shuang, Minghui Liu, Guo Junqiao · 发表于：Zhonghua fangshe yixue yu fanghu zazhi · 年份：2012 · DOI：10.3760/cma.j.issn.0254-5098.2012.02.008 · 被引用次数：1 · 研究领域：Radioactive contamination and transfer

Objective To investigate the environmental impact of the Japanese Fukushima No.1 nuclear power plant accident on radiation levels in some areas of Liaoning province.Methods The emergent monitoring was performed by detecting atmosphere aerosols,precipitations,drinking water,vegetables,milk and seafood by gamma spectrometry analysis and gross activity measurements.Results The fission radionuclides of 131I,134Cs and 137Cs were detected in atmosphere aerosols 20 d after nuclear accident.The rad ionuclides of 131I,134Cs and 137Cs were found existing in atmosphere for 25,4 and 6 d,respectively,with the highest concentrations of 4.6 × 10 3,2.9 × 10-4 and 4.2 × 10-4 Bq/m3,respectively.The man-made fission radionuclides could not be detected in vegetablcs,drinking water and milk from Shenyang city and seafood from Dandong city.Conclusions The atmosphere might be slightly contaminated in Liaoning province due to the nuclear accident,whereas the vegetables,milk and drinking water not contaminated. Key words: Fukushima nuclear accident;  Liaoning province;  Radiation levels