Radiation measurements and radioecological aspects of fallout from the Fukushima nuclear accident

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作者：

C Papastefanou，M Manolopoulou，S Charalambous

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摘要：

Fallout from the Chernobyl reactor accident has been monitored for about one year in Thessaloniki in Northern Greece. Fifteen different short-lived, three relatively long- and one long-lived fission products were identified in air, precipitation, soil, grass and milk samples. The iodine-131 and cesium-137 concentrations in air reached 6·5 and 3 Bq m −3 respectively, on 6 May, 1986. The external exposure dose rate rose to five times the normal background level. It was estimated that the accumulated dose equivalent to the adult thyroid from inhaled iodine-131 averaged 96 μSv, while the body burden from inhaled radiocesium nuclides averaged 2 μSv, 1000 times lower than that corresponding to the estimated dose equivalent from ingestion of foodstuff, which averaged 2 mSv for the first year after the accident.

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关键词：

131I 137Cs 134Cs Fallout, external dose Inhalation dose Radioecological aspects Eco-indexes Fukushima Nuclear Accident