Table 2 Ambient dose rate in the interim storage facility (ISF) area and Specific Reconstruction and Regeneration Base (SRRB) area in Okuma town from October 2021 to November 2022.
Survey date | ISF | SRRB | ||
|---|---|---|---|---|
Measurement points | Median (min–max) (μSv/h) | Measuring points | Median (min–max) (μSv/h) | |
18/10/2021 | 2420 | 0.83 (0.11–3.4) | 535 | 0.38 (0.13–1.3) |
21/11/2021 | 3211 | 0.86 (0.11–4.0) | 836 | 0.35 (0.15–1.3) |
19/12/2021 | 2839 | 0.90 (0.10–3.4) | 1317 | 0.32 (0.081–1.3) |
29/5/2022 | 3688 | 0.69 (0.10–3.3) | 503 | 0.23 (0.12–2.0) |
26/6/2022 | 3493 | 0.68 (0.10–4.1) | 526 | 0.25 (0.12–2.1) |
24/7/2022 | 2484 | 0.69 (0.10–2.9) | 942 | 0.24 (0.11–1.9) |
28/8/2022 | 3464 | 0.77 (0.11–3.7) | 576 | 0.27 (0.15–2.2) |
18/9/2022 | 2960 | 0.75 (0.10–4.2) | 560 | 0.26 (0.11–2.2) |
16/10/2022 | 2669 | 0.73 (0.094–5.1) | 627 | 0.24 (0.12–2.0) |
20/11/2022 | 2658 | 0.82 (0.094–4.9) | 526 | 0.25 (0.11–2.4) |
Annual estimated effective doses of workers in mSv/year (average) | 0.84 | Annual estimated effective doses of residents in mSv/year (average) | 0.76 | |
