日本の土壌線量率-基盤岩石ＳｉＯ2 (Soil dose rate vs. SiO2 of bedrock in Japan)

	日本の土壌線量率-基盤岩石Ｋ2Ｏ (Soil dose rate vs. K2O of bedrock in Japan)

日本の土壌中のU,Th,K濃度（U,Th, K concentrations in soils of Japan)

	日本の地表γ線量率 (Terrestrial gamma ray dose rates in Japan)

下限磁気剛度 (Cut-off rigidity)