@article{oai:repository.naro.go.jp:00003134, author = {山口, 紀子 and YAMAGUCHI, Noriko and 江口, 定夫 and EGUCHI, Sadao and 林, 健太郎 and HAYASHI, Kentaro and 藤原, 英司 and FUJIWARA, Hideshi and 塚田, 祥文 and TSUKADA, Hirofumi}, journal = {農業環境技術研究所報告, Bulletin of National Institute for Agro-Environmental Sciences}, month = {Mar}, note = {Three weeks after the accident at the Tokyo Electric Power Company's Fukushima Daiichi Nuclear Power Plant, we determined the activity concentrations of ^<131>I, ^<134>Cs and ^<137>Cs in atmospheric dust fugitively resuspended from soil particles due to soil surface perturbation by agricultural practices. The atmospheric concentrations of ^<131>I, ^<134>Cs and ^<137>Cs increased because of the agitation of soil particles by a hammer-knife mower and a rotary tiller. Coarse soil particles were primarily agitated by the perturbation of the soil surface of Andosols. For dust particles smaller than 10 μm, the resuspension factors of radiocesium during the operation of agricultural equipment were 16-times higher than those under background condition.}, pages = {33--41}, title = {農業環境技術研究所畑圃場における農作業に伴い巻き上がる土壌粒子に含まれる放射性物質}, volume = {34}, year = {2015}, yomi = {ヤマグチ, ノリコ and エグチ, サダオ and ハヤシ, ケンタロウ and フジワラ, ヒデシ and ツカダ, ヒロフミ} }