Minimum detectable activity for analysis of environmental radioactivity (attached Table 2 in NSSC Notice No. 2017-17).
| Nuclides . | Air (Bq m−3) . | Water (Bq L−1) . | Soil (Bq kg−1) . | Milk (Bq L−1) . | Sea water (Bq L−1) . | Seabed sediment (Bq kg−1) . |
|---|---|---|---|---|---|---|
| 3H | 0.1 | 5 | N/Aa | 5 | 5 | N/Aa |
| 14C | 0.25 | N/Aa | N/Aa | N/Aa | N/Aa | N/Aa |
| 54Mn | 8 × 10−5 | 0.5 | 2 | 0.2 | 5 × 10−3 | 2 |
| 58Co | 3 × 10−4 | 5 × 10−2 | 2 | 0.2 | 5 × 10−3 | 2 |
| 60Co | 8 × 10−5 | 2 × 10−2 | 2 | 0.2 | 5 × 10−3 | 2 |
| 90Sr | 5 × 10−6 | 1 × 10−3 | 0.5 | 0.1 | 1 × 10−3 | 0.5 |
| 131I | 1 × 10−2 | 0.1 | 3 | 0.2 | 0.1 | 1.5 |
| 134Cs | 8 × 10−5 | 8 × 10−3 | 5 | 0.2 | 3 × 10−3 | 5 |
| 137Cs | 8 × 10−5 | 8 × 10−3 | 5 | 0.2 | 3 × 10−3 | 5 |
| Nuclides . | Air (Bq m−3) . | Water (Bq L−1) . | Soil (Bq kg−1) . | Milk (Bq L−1) . | Sea water (Bq L−1) . | Seabed sediment (Bq kg−1) . |
|---|---|---|---|---|---|---|
| 3H | 0.1 | 5 | N/Aa | 5 | 5 | N/Aa |
| 14C | 0.25 | N/Aa | N/Aa | N/Aa | N/Aa | N/Aa |
| 54Mn | 8 × 10−5 | 0.5 | 2 | 0.2 | 5 × 10−3 | 2 |
| 58Co | 3 × 10−4 | 5 × 10−2 | 2 | 0.2 | 5 × 10−3 | 2 |
| 60Co | 8 × 10−5 | 2 × 10−2 | 2 | 0.2 | 5 × 10−3 | 2 |
| 90Sr | 5 × 10−6 | 1 × 10−3 | 0.5 | 0.1 | 1 × 10−3 | 0.5 |
| 131I | 1 × 10−2 | 0.1 | 3 | 0.2 | 0.1 | 1.5 |
| 134Cs | 8 × 10−5 | 8 × 10−3 | 5 | 0.2 | 3 × 10−3 | 5 |
| 137Cs | 8 × 10−5 | 8 × 10−3 | 5 | 0.2 | 3 × 10−3 | 5 |
aNot available
Minimum detectable activity for analysis of environmental radioactivity (attached Table 2 in NSSC Notice No. 2017-17).
| Nuclides . | Air (Bq m−3) . | Water (Bq L−1) . | Soil (Bq kg−1) . | Milk (Bq L−1) . | Sea water (Bq L−1) . | Seabed sediment (Bq kg−1) . |
|---|---|---|---|---|---|---|
| 3H | 0.1 | 5 | N/Aa | 5 | 5 | N/Aa |
| 14C | 0.25 | N/Aa | N/Aa | N/Aa | N/Aa | N/Aa |
| 54Mn | 8 × 10−5 | 0.5 | 2 | 0.2 | 5 × 10−3 | 2 |
| 58Co | 3 × 10−4 | 5 × 10−2 | 2 | 0.2 | 5 × 10−3 | 2 |
| 60Co | 8 × 10−5 | 2 × 10−2 | 2 | 0.2 | 5 × 10−3 | 2 |
| 90Sr | 5 × 10−6 | 1 × 10−3 | 0.5 | 0.1 | 1 × 10−3 | 0.5 |
| 131I | 1 × 10−2 | 0.1 | 3 | 0.2 | 0.1 | 1.5 |
| 134Cs | 8 × 10−5 | 8 × 10−3 | 5 | 0.2 | 3 × 10−3 | 5 |
| 137Cs | 8 × 10−5 | 8 × 10−3 | 5 | 0.2 | 3 × 10−3 | 5 |
| Nuclides . | Air (Bq m−3) . | Water (Bq L−1) . | Soil (Bq kg−1) . | Milk (Bq L−1) . | Sea water (Bq L−1) . | Seabed sediment (Bq kg−1) . |
|---|---|---|---|---|---|---|
| 3H | 0.1 | 5 | N/Aa | 5 | 5 | N/Aa |
| 14C | 0.25 | N/Aa | N/Aa | N/Aa | N/Aa | N/Aa |
| 54Mn | 8 × 10−5 | 0.5 | 2 | 0.2 | 5 × 10−3 | 2 |
| 58Co | 3 × 10−4 | 5 × 10−2 | 2 | 0.2 | 5 × 10−3 | 2 |
| 60Co | 8 × 10−5 | 2 × 10−2 | 2 | 0.2 | 5 × 10−3 | 2 |
| 90Sr | 5 × 10−6 | 1 × 10−3 | 0.5 | 0.1 | 1 × 10−3 | 0.5 |
| 131I | 1 × 10−2 | 0.1 | 3 | 0.2 | 0.1 | 1.5 |
| 134Cs | 8 × 10−5 | 8 × 10−3 | 5 | 0.2 | 3 × 10−3 | 5 |
| 137Cs | 8 × 10−5 | 8 × 10−3 | 5 | 0.2 | 3 × 10−3 | 5 |
aNot available
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