ノート
北陸地方における7Be降下量の地域分布
キーワード:
7Be deposition,
7Be concentration,
Precipitation,
Environmental radioactive monitoring,
The Hokuriku region,
Topographic feature
2025 年 60 巻 1 号 p. 40-47
詳細
2025 年 60 巻 1 号 p. 40-47
Monthly 7Be depositions were examined at four sites in Hokuriku, Japan, from 1992 to 2021. The amounts of 7Be depositions in Hokuriku from October to March differed locally: Depositions at Kanazawa were high (4,400 Bq/m2), a site along the foot of the mountains. 7Be depositions in the plain of Fukui city, along Wakasa Bay and along the coast of the Noto Peninsula (3,300, 2,800 and 2,500 Bq/m2, respectively) were equivalent to those of other areas along the coast of the Sea of Japan. The local variation in 7Be depositions in Hokuriku is predominantly ascribed to precipitation, topographic feature and 7Be concentrations.
