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. 2012 Sep 26;7(9):e45816. doi: 10.1371/journal.pone.0045816

Figure 2. Relationship between estimated external effective doses from soils and air dose rates in Kawauchi Village.

Figure 2

External effective doses were estimated using Eq. (1); s is the decrease in the coefficient by a shielding factor against exposure with gamma rays from a deposit at 1 m above ground (0.7 under the condition of usual land (IAEA-TECDOC-1162)). Air dose rates were monitored by a portable detector in sampling places (PDR-201®, Hitachi-Aloka Medical, Ltd., Tokyo, Japan). Excluded 8-A by uncertainly data of air dose rate.