Open Access
Table 1
Agricultural countermeasures implemented following the Fukushima accident (MAFF, 2014; IAEA, 2015b).
| For fields and pastures | |
| Agricultural countermeasures | Action levels – Radio-caesium activity in soil (Bq/kg dry weight) |
| Addition of potassium fertiliser | < 5000 |
| Reversal tillage | [5000–10 000] |
| Topsoil removal (5 cm). Soil reconstitution based on healthy soil and addition of potassium fertiliser | [5000–25 000] |
| Weeding | > 5000 |
| Topsoil removal using solidification agents. Soil reconstitution based on healthy soil and addition of potassium fertiliser | > 5000 |
| For orchards | |
| High-pressure water jet cleaning or debarking of fruit trees | |
| Pruning of small branches or leaf removal | |
| Topsoil removal | |
| Burial or incineration of the first harvest after the accident (in the event of fruit contamination above the standards, in 2011: 500 Bq/kg) | |
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