Preliminary assessment of ecological exposure of adult residents in Fukushima Prefecture to radioactive cesium through ingestion and inhalation.
スポンサーリンク
概要
- 論文の詳細を見る
福島県成人住民の放射性セシウムへの経口、吸入曝露の先行評価を実施. 京都大学プレスリリース. 2011-11-14.OBJECTIVE: This study aims to estimate the ecological exposure of adult residents of Fukushima Prefecture to (134)cesium (Cs) and (137)Cs through ingestion and inhalation between July 2 and July 8, 2011. METHODS: Fifty-five sets of meals with tap water, each representing one person's daily intake, were purchased in local towns in Fukushima Prefecture. Locally produced cow's milk (21 samples) and vegetables (43 samples) were also purchased. In parallel, air sampling was conducted at 12 different sites using a high-volume sampler. Nineteen sets of control meals were collected in Kyoto in July 2011. (134)Cs and (137)Cs levels in the samples were measured using a germanium detector. RESULTS: Radioactivity was detected in 36 of the 55 sample meals from Fukushima, compared with one of 19 controls from Kyoto. The median estimated dose level (μSv/year) was 3.0, ranging from not detectable to 83.1. None of the cow's milk (21) or vegetable (49) samples showed levels of contamination above the current recommended limits (Bq/kg) of 200 for milk and 500 for vegetables. The total effective dose levels by inhalation were estimated to be <3 μSv/year at nine locations, but samples at three other locations close to the edge of the 20-km radius from the crippled nuclear power plant showed higher levels of contamination (μSv/year): 14.7 at Iitate, 76.9 at Namie, and 27.7 at Katsurao. CONCLUSIONS: Levels of exposure to (134)Cs and (137)Cs in Fukushima by ingestion and inhalation are discernible, but generally within recommended limits.
- 2011-11-10
論文 | ランダム
- Enamel Demineralization in situ with Various Frequencies of Carbohydrate Consumption with and without Fluoride Toothpaste
- ANALYSIS OF A CIS-REGULATORY REGION FOR CHORIOGENIN GENE EXPRESSION IN THE GREEN FLUORESCENCE PROTEIN (GFP) GENETRANSGENIC MEDAKA(Genetics,Abstracts of papers presented at the 74^ Annual Meeting of the Zoological Society of Japan)
- 3D-STRUCTURE OF HCE, ONE OF MEDAKA HATCHING ENZYMES, AND ANALYSIS OF THE MECHANISM OF ITS EGG ENVELOPE DIGESTION USING MUTATED RECOMBINANT HCE(Biochemistry,Abstracts of papers presented at the 74^ Annual Meeting of the Zoological Society of Japan)
- EXPRESSION OF C/EBP DELTA DURING THE METAMORPHIC REMODELING OF XENOPUS LAEVIS FOREGUT(Developmental Biology,Abstracts of papers presented at the 74^ Annual Meeting of the Zoological Society of Japan)
- ANALYSIS OF GLOBIN GENE EXPRESSION IN THE MEDAKA, ORYZIAS LATIPES(Genetics)(Proceedings of the Seventy-Third Annual Meeting of the Zoological Society of Japan)