An investigation in Kawamata Town, Fukushima Prefecture has revealed that even in forest roads where wind easily blow through, air dose rates did not increase after windy weather (maximum wind speed: 10 m/s, intermittently continued for few days).

In Kawamata Town, Fukushima Prefecture, heavy rain (precipitation amount: 65.4 mm in 2 hours) was observed, and muddy stream flowed in mountain roads. Nevertheless, air dose rates did not increase so much at that time.

Fig.1　Results for continuous measurements on weather and air dose rates in Kawamata Town

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Reference

1. 鶴田忠彦, 新里忠史, 中西貴宏, 土肥輝美, 中間茂雄, 舟木泰智, 御園生敏治, 大山卓也, 操上広志, 林誠二, 齊藤宏, 北村哲浩, 飯島和毅(2017): 福島における放射性セシウムの環境動態研究の現状; 根拠となる科学的知見の明示をより意識した情報発信の一環として, JAEA-Review 2017-018, 86p. https://doi.org/10.11484/jaea-review-2017-018